WO2007139653A1 - Lcd films or sheets comprising films comprising polyester compositions formed from 2,2,4,4,-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol - Google Patents

Lcd films or sheets comprising films comprising polyester compositions formed from 2,2,4,4,-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol Download PDF

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Publication number
WO2007139653A1
WO2007139653A1 PCT/US2007/010551 US2007010551W WO2007139653A1 WO 2007139653 A1 WO2007139653 A1 WO 2007139653A1 US 2007010551 W US2007010551 W US 2007010551W WO 2007139653 A1 WO2007139653 A1 WO 2007139653A1
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WO
WIPO (PCT)
Prior art keywords
mole
polyester
sheet
dicarboxylic acid
residues
Prior art date
Application number
PCT/US2007/010551
Other languages
French (fr)
Inventor
Wesley Raymond Hale
Thomas Joseph Pecorini
Douglas Stephens Mcwilliams
Emmett Dudley Crawford
David Scott Porter
Gary Wayne Connell
Original Assignee
Eastman Chemical Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/439,340 external-priority patent/US20060270806A1/en
Priority claimed from US11/439,062 external-priority patent/US20060270773A1/en
Priority claimed from US11/588,883 external-priority patent/US20070105993A1/en
Priority claimed from US11/588,527 external-priority patent/US20100087574A1/en
Priority claimed from US11/588,907 external-priority patent/US20070106054A1/en
Priority claimed from US11/588,524 external-priority patent/US20100096589A1/en
Priority claimed from PCT/US2006/042292 external-priority patent/WO2007053549A1/en
Priority claimed from US11/588,458 external-priority patent/US20070100122A1/en
Priority claimed from US11/588,554 external-priority patent/US20070100125A1/en
Priority claimed from US11/588,906 external-priority patent/US8193302B2/en
Priority claimed from PCT/US2006/041917 external-priority patent/WO2007053434A1/en
Priority claimed from US11/635,433 external-priority patent/US20070142511A1/en
Priority claimed from US11/635,434 external-priority patent/US7737246B2/en
Priority claimed from US11/706,791 external-priority patent/US20070232779A1/en
Priority claimed from US11/706,476 external-priority patent/US20070232778A1/en
Priority claimed from PCT/US2007/007632 external-priority patent/WO2007126855A1/en
Application filed by Eastman Chemical Company filed Critical Eastman Chemical Company
Priority to PCT/US2007/011150 priority Critical patent/WO2007139663A1/en
Priority to EP07836026A priority patent/EP2074174A1/en
Priority to JP2009534565A priority patent/JP2010507716A/en
Priority to JP2009534566A priority patent/JP2010507717A/en
Priority to BRPI0717761-5A priority patent/BRPI0717761A2/en
Priority to PCT/US2007/015713 priority patent/WO2008054560A2/en
Priority to KR1020097008483A priority patent/KR20090079211A/en
Priority to CA002666585A priority patent/CA2666585A1/en
Priority to MX2009003369A priority patent/MX2009003369A/en
Priority to MX2009003375A priority patent/MX2009003375A/en
Priority to PCT/US2007/015704 priority patent/WO2008051321A1/en
Priority to EP07836029A priority patent/EP2074158A1/en
Priority to PCT/US2007/015702 priority patent/WO2008054559A1/en
Priority to PCT/US2007/015701 priority patent/WO2008051320A1/en
Priority to CA002666571A priority patent/CA2666571A1/en
Priority to TW096125089A priority patent/TW200819496A/en
Priority to TW096125125A priority patent/TW200819497A/en
Priority to BRPI0717755-0A priority patent/BRPI0717755A2/en
Priority to KR1020097008484A priority patent/KR20090079212A/en
Publication of WO2007139653A1 publication Critical patent/WO2007139653A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/49—Phosphorus-containing compounds
    • C08K5/51—Phosphorus bound to oxygen
    • C08K5/52—Phosphorus bound to oxygen only
    • C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16—Dicarboxylic acids and dihydroxy compounds
    • C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
    • C08G63/199—Acids or hydroxy compounds containing cycloaliphatic rings

Definitions

  • the present invention generally relates to Liquid Crystal Displays (LCD) films or sheets comprising polyester compositions made from terephthalic acid, or an ester thereof, and mixtures thereof, 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol, and cyclohexanedimethanol, and at least one phosphate ester, reaction products thereof, and mixtures thereof, having a certain combination of two or more of high impact strengths, high glass transition temperature (T 9 ), toughness, certain inherent viscosities, low ductile-to-brittle transition temperatures, good color and clarity, low densities, chemical resistance, hydrolytic stability, and long crystallization half-times, which allow them to be easily formed into articles.
  • the present invention also generally relates to processes for making the LCD films or sheets comprising the polyester compositions of the invention.
  • Films or sheets can be produced with a variety of plastic materials by a variety of processes (extrusion molding, stretch blow molding, etc.).
  • Polycarbonates are widely used in a variety of molding and extrusion applications.
  • films or sheets formed from the polycarbonates should be dried prior to thermoforming. If the films and/or sheets are not pre-dried prior to thermoforming, thermoformed articles formed from the polycarbonates can contain blisters, which are generally unacceptable from an appearance standpoint.
  • PCT PoIy(1 ,4-cyclohexylenedimethylene) terephthalate
  • a polyester based solely on terephthalic acid or an ester thereof and cyclohexanedimethanol is known in the art and is commercially available.
  • This polyester crystallizes rapidly upon cooling from the melt, making it very difficult to form amorphous articles by methods known in the art such as extrusion, injection molding, and the like.
  • copolyesters can be prepared containing additional dicarboxylic acids or glycols such as isophthalic acid or ethylene glycol residues.
  • ethylene glycol residues- or isophthalic acid-modified PCTs are also known in the art and are commercially available.
  • One common copolyester used to produce films, sheeting, and molded articles is made from terephthalic acid, 1 ,4-cyclohexanedimethanol, and ethylene glycol residues. While these copolyesters are useful in many end-use applications, they exhibit deficiencies in properties such as glass transition temperature and impact strength when sufficient modifying ethylene glycol residues is included in the formulation to provide for long crystallization half- times.
  • copolyesters made from terephthalic acid, 1 ,4- cyclohexanedimethanol, and ethylene glycol residues with sufficiently long crystallization half-times can provide amorphous products that exhibit what is believed to be undesirably higher ductile-to-brittle transition temperatures and lower glass transition temperatures than the compositions revealed herein.
  • the polycarbonate of 4,4'-isopropylidenediphenol has been used as an alternative for polyesters known in the art and is a well known engineering molding plastic.
  • Bisphenol A polycarbonate is a clear, high-performance plastic having good physical properties such as dimensional stability, high heat resistance, and good impact strength.
  • LCDs liquid crystal displays
  • optical films or sheet material are commonly used to direct, diffuse, or retard or transmit with no interference the light and as support layers for polarizing films.
  • brightness enhancement films use prismatic structures on the surfaces to direct light along a viewing axis (e.g., an axis normal to the display). Such films can enhance the brightness of the light viewed by the user of the display and can allow the system to consume less power in creating a desired level of on-axis illumination.
  • diffusing components In Liquid Crystal Displays (LCD), it can be desirable to have diffusing components.
  • diffusing components include, but are not limited to, masking artifacts, such as seeing electronic components located behind the diffuser film, improved uniformity in illumination and increased viewing angle.
  • diffusing components include, but are not limited to, masking artifacts, such as seeing electronic components located behind the diffuser film, improved uniformity in illumination and increased viewing angle.
  • diffusion of light is introduced into the backlight assembly by adding separate films (e.g., a stack) including a non-diffusing substrate, to which a highly irregular, diffusing surface treatment is applied or attached.
  • optical resin sheets such as light-diffusing sheets
  • a resin composition prepared by mixing fine inorganic particles (e.g., titanium oxide, glass beads, and silica) or fine resin particles (made of, e.g., silicone resins, acrylic resins, or polystyrene) with a transparent resin as a binder.
  • resin compositions have been prepared by adding resin particles (e.g., acrylic resins) into a transparent resin (e. g. polycarbonate) as a base material.
  • resin particles e.g., acrylic resins
  • a transparent resin e.g. polycarbonate
  • thermoplastic substrates such as polyester or polycarbonate substrate
  • inorganic minerals e.g., BaSO 4
  • other minerals that may be used are aluminum oxide, zinc oxide (ZnO), calcium sulfate, barium sulfate, calcium carbonate (e.g., chalk), magnesium carbonate, sodium silicate, aluminum silicate, titanium dioxide (Ti ⁇ 2 ), silicon dioxide (Si ⁇ 2 , i.e., silica), mica, clay, talc, and the like in a range of up to about 25 weight percent.
  • the specifications applied to plastic sheets or films (substrates) in a number of homogeneous sheet or multi- wall sheet applications and optical applications may require, in some applications, that the substrates be substantially free of bubbles or cavities when thermoplastically processed, display minimal optical birefringence, have a low thickness tolerance or variation, low curvature, low thermal shrinkage, and low surface roughness.
  • LCD films or sheets comprising at least one polymer having a combination of two or more properties, chosen from at least one of the following: toughness, high glass transition temperatures, high impact strength, hydrolytic stability, chemical resistance, long crystallization half- times, low ductile to brittle transition temperatures, good color, and clarity, lower density and/or thermoformability of polyesters while achieving processability on the standard equipment used in the industry.
  • polyester compositions formed from terephthalic acid, an ester thereof, and/or mixtures thereof, cyclohexanedimethanol, and 2,2,4,4-tetramethyl-1,3-cyclobutanediol comprising certain thermal stabilizers, reaction products thereof, and mixtures thereof, are superior to polyesters known in the art and to polycarbonate with respect to one or more of high impact strengths, hydrolytic stability, toughness, chemical resistance, good color and clarity, long crystallization half-times, low ductile to brittle transition temperatures, lower specific gravity, and thermoformability.
  • These compositions are believed to be similar to polycarbonate in heat resistance and are more processable on the standard industry equipment.
  • these polyesters have enhanced thermal stability allowing for easier manufacture and enhanced downstream material processing.
  • the polyesters can be more easily produced without at least one of the following occurring: bubbling, splay formation, color formation, foaming, off- gassing, and erratic melt levels, i.e., pulsating of the polyester or the polyesters production and processing systems.
  • at least one process of the invention provides a means to more easily produce the polyesters useful in the invention in large quantities (for example, pilot run scale and/or commercial production) without at least one of the aforesaid difficulties occurring.
  • large quantities includes quantities of polyester(s) useful in the invention which are produced in quantities larger than 100 pounds. In one embodiment, the term “large quantities, as used herein, includes quantities of polyester(s) useful in the invention which are produced in quantities larger than 1000 pounds.
  • the processes of making the polyesters useful in the invention can comprise a batch or continuous process. [0017] In one aspect, the processes of making the polyesters useful in the invention comprise a continuous process.
  • the invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • a dicarboxylic acid component comprising: (i) 70 to 100 mole % of terephthalic acid residues; (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt)phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C ; and wherein the polyester has a Tg from 85 to 200 0 C.
  • the invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; wherein the polyester has a Tg from 85 to 200 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.75 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25 0 C; and wherein the polyester has a Tg from 100 to 200 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; wherein the polyester has a Tg from 110 to 200 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.68 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 200 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.75 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25 0 C; and wherein the polyester has a Tg from 110 to 150 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.75 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 130 to 145°C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.58 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 130 to 145°C.
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • a modifying glycol chosen from at least one of the following: ethylene glycol residues, propylene glycol, butanediol, and mixtures thereof; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryt phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25 0 C; wherein
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at
  • the polyester has a Tg from 85 to 200 0 C and optionally, wherein one or more branching agents is added prior to or during the polymerization of the polymer.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • a modifying glycol chosen from at least one of the following: ethylene glycol residues, propylene glycol, butanediol, and mixtures thereof;
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; wherein the polyester has a Tg from 110 to 200 0 C; and optionally, wherein one or more branching agents is added prior to or during the polymerization of the polymer.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt)phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; wherein the polyester has a Tg from 110 to 200 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt)phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25 0 C; wherein the polyester has a Tg from 110 to 200 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • a modifying glycol chosen from at least one of the following: ethylene glycol residues, propylene glycol, butanediol, and mixtures thereof;
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.75 dl_/g or less as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25 0 C; wherein the polyester has a Tg from 110 to 200 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.72 dl_/g as determined in 60/40 (wt/wt)phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C ; and wherein the polyester has a Tg from 110 to 200 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.10 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; wherein the polyester has a Tg from 85 to 200 0 C; wherein if ethylene glycol residues is present in the glycol component, it is present in the polyester at less than 15 mole %.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the amo ⁇ hous polyester has a glass transition temperature (Tg) of greater than
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • a dicarboxylic acid component comprising: (i) 70 to 100 mole % of terephthalic acid residues; (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.5 to 1.2 dL/g as determined in
  • polyester has a Tg from 85 to 120 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 125°C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of a Iky I phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25 0 C; and wherein the polyester has a Tg from 85 to 120 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • the polyester has a Tg from 85 to 120 0 C.
  • the Tg of the polyester is from 100 to 120 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity is from 0.50 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 120 0 C. In one embodiment, the Tg of the polyester is from 100 to 120 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity is from 0.50 to 0.8 dl_/g as determined in 60/40
  • the polyester has a Tg from 85 to 120 0 C.
  • the Tg of the polyester is from 100 to 120 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity is from 0.50 to 0.75 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 120 0 C. In one embodiment, the Tg of the polyester is from 100 to 120 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity is from 0.50 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 100 to 120 0 C. In one embodiment, the Tg of the polyester is from 100 to 120 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 95 to 115°C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole'%; and wherein the inherent viscosity of the polyester is from 0.5 to 0.8 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 120 0 C. In one embodiment, the Tg of the polyester is from 100 to 120 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.8 dL/g as determined in 60/40 (wt/wt) phenol/tetrachtoroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 120 0 C. In one embodiment, the Tg of the polyester is from 100 to 120 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25 0 C; and wherein the polyester has a Tg from 85 to 120 0 C.
  • the Tg of the polyester is from 100 to 120 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.65 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 120 0 C.
  • the Tg of the polyester is from 100 to 120°C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • a glycol component comprising: (i) 17 to 28 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
  • this invention relates to an LCD film or sheet comprising a polyester
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.7 to 0.8 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25 0 C; and wherein the polyester has a Tg from 100 to 12O 0 C.
  • the Tg of the polyester is from 100 to 120 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.65 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 100 to 115°C.
  • the Tg of the polyester is from 100 to 120 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising: (I) at least one polyester which comprises:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 95 to 115°C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • a glycol component comprising: (i) 10 to 30 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.72 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 95 to 115°C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25 0 C; and wherein the polyester has a Tg from 60 to 110 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 60 to 110 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 60 to 110 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 60 to 110 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition
  • a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • At least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25 0 C; and wherein the polyester has a Tg from 60 to 110 0 C.
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • a dicarboxylic acid component comprising: (i) 70 to 100 mole % of terephthalic acid residues; (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:
  • this invention relates to an LCD film or sheet comprising a polyester composition comprising:

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Abstract

Described as one aspect of the invention are LCD films or sheets comprising polyester compositions comprising: (I) at least one polyester which comprises: (a) a dicarboxylic acid component comprising: (i) 70 to 100 mole % of terephthalic acid residues; (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising: (i) 1 to 99 mole % of 2.2,4,4-tetra methyl- 1,3- cyclobutanediol residues; and (ii) 1 to 99 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and wherein the total mole % of the glycol component is 100 mole %.

Description

LCD FILMS OR SHEETS COMPRISING POLYESTER
COMPOSITIONSCOMPRISING CYCLOBUTANEDIOL AND CERTAIN
THERMAL STABILIZERS, AND/OR REACTION PRODUCTS THEREOF
FIELD OF THE INVENTION
[0001] The present invention generally relates to Liquid Crystal Displays (LCD) films or sheets comprising polyester compositions made from terephthalic acid, or an ester thereof, and mixtures thereof, 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol, and cyclohexanedimethanol, and at least one phosphate ester, reaction products thereof, and mixtures thereof, having a certain combination of two or more of high impact strengths, high glass transition temperature (T9), toughness, certain inherent viscosities, low ductile-to-brittle transition temperatures, good color and clarity, low densities, chemical resistance, hydrolytic stability, and long crystallization half-times, which allow them to be easily formed into articles. The present invention also generally relates to processes for making the LCD films or sheets comprising the polyester compositions of the invention.
BACKGROUND OF THE INVENTION
[0002] Films or sheets can be produced with a variety of plastic materials by a variety of processes (extrusion molding, stretch blow molding, etc.). Polycarbonates are widely used in a variety of molding and extrusion applications. In general, films or sheets formed from the polycarbonates should be dried prior to thermoforming. If the films and/or sheets are not pre-dried prior to thermoforming, thermoformed articles formed from the polycarbonates can contain blisters, which are generally unacceptable from an appearance standpoint.
[0003] PoIy(1 ,4-cyclohexylenedimethylene) terephthalate (PCT), a polyester based solely on terephthalic acid or an ester thereof and cyclohexanedimethanol, is known in the art and is commercially available. This polyester crystallizes rapidly upon cooling from the melt, making it very difficult to form amorphous articles by methods known in the art such as extrusion, injection molding, and the like. In order to slow down the crystallization rate of PCT, copolyesters can be prepared containing additional dicarboxylic acids or glycols such as isophthalic acid or ethylene glycol residues. These ethylene glycol residues- or isophthalic acid-modified PCTs are also known in the art and are commercially available. [0004] One common copolyester used to produce films, sheeting, and molded articles is made from terephthalic acid, 1 ,4-cyclohexanedimethanol, and ethylene glycol residues. While these copolyesters are useful in many end-use applications, they exhibit deficiencies in properties such as glass transition temperature and impact strength when sufficient modifying ethylene glycol residues is included in the formulation to provide for long crystallization half- times. For example, copolyesters made from terephthalic acid, 1 ,4- cyclohexanedimethanol, and ethylene glycol residues with sufficiently long crystallization half-times can provide amorphous products that exhibit what is believed to be undesirably higher ductile-to-brittle transition temperatures and lower glass transition temperatures than the compositions revealed herein. [0005] The polycarbonate of 4,4'-isopropylidenediphenol (bisphenol A polycarbonate) has been used as an alternative for polyesters known in the art and is a well known engineering molding plastic. Bisphenol A polycarbonate is a clear, high-performance plastic having good physical properties such as dimensional stability, high heat resistance, and good impact strength. Although bisphenol-A polycarbonate has many good physical properties, its relatively high melt viscosity leads to poor melt processability and the polycarbonate exhibits poor chemical resistance. It is also difficult to thermoform. [0006] Polymers containing 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol have also been generally described in the art. Generally, however, these polymers exhibit high inherent viscosities, high melt viscosities and/or high Tgs (glass transition temperatures or T9) such that the equipment used in industry can be insufficient to manufacture or post polymerization process these materials. [0007] In liquid crystal displays (LCDs) used for computers, laptops, television displays or other display systems, optical films or sheet material are commonly used to direct, diffuse, or retard or transmit with no interference the light and as support layers for polarizing films. For example, in backlit (backlight or sidelight) displays, brightness enhancement films use prismatic structures on the surfaces to direct light along a viewing axis (e.g., an axis normal to the display). Such films can enhance the brightness of the light viewed by the user of the display and can allow the system to consume less power in creating a desired level of on-axis illumination.
(0008] In Liquid Crystal Displays (LCD), it can be desirable to have diffusing components. Examples of the utility of diffusing components include, but are not limited to, masking artifacts, such as seeing electronic components located behind the diffuser film, improved uniformity in illumination and increased viewing angle. In a typical LCD display, diffusion of light is introduced into the backlight assembly by adding separate films (e.g., a stack) including a non-diffusing substrate, to which a highly irregular, diffusing surface treatment is applied or attached.
[0009] Additionally, attempts have been made to enhance properties of resins or resin compositions through the addition of fine particles, where such resins can be used as materials for optical uses such as LCDs, and touch panels. For example, as to optical resin sheets, such as light-diffusing sheets, there can be obtained by coating a surface of a predetermined base material with a resin composition prepared by mixing fine inorganic particles (e.g., titanium oxide, glass beads, and silica) or fine resin particles (made of, e.g., silicone resins, acrylic resins, or polystyrene) with a transparent resin as a binder. For light- leading plates, resin compositions have been prepared by adding resin particles (e.g., acrylic resins) into a transparent resin (e. g. polycarbonate) as a base material. However, there remains a need to generate diffuse light with out the added cost of separate films.
[0010] There are also reports of attempts to improve light diffusion properties of thermoplastic substrates, such as polyester or polycarbonate substrate, by the addition of inorganic minerals, e.g., BaSO4, a commonly used white pigment. Besides BaSO4, other minerals that may be used are aluminum oxide, zinc oxide (ZnO), calcium sulfate, barium sulfate, calcium carbonate (e.g., chalk), magnesium carbonate, sodium silicate, aluminum silicate, titanium dioxide (Tiθ2), silicon dioxide (Siθ2, i.e., silica), mica, clay, talc, and the like in a range of up to about 25 weight percent. These minerals can cause formation of cavities or voids in the substrate, which can contribute to rendering the substrate more opaque due to multiple light scattering. However, the specifications applied to plastic sheets or films (substrates) in a number of homogeneous sheet or multi- wall sheet applications and optical applications may require, in some applications, that the substrates be substantially free of bubbles or cavities when thermoplastically processed, display minimal optical birefringence, have a low thickness tolerance or variation, low curvature, low thermal shrinkage, and low surface roughness.
[0011] Thus, there is a need in the art for LCD films or sheets comprising at least one polymer having a combination of two or more properties, chosen from at least one of the following: toughness, high glass transition temperatures, high impact strength, hydrolytic stability, chemical resistance, long crystallization half- times, low ductile to brittle transition temperatures, good color, and clarity, lower density and/or thermoformability of polyesters while achieving processability on the standard equipment used in the industry.
[0012] In addition, in one embodiment, there is a need in the art for a process which makes it easier to produce the polyesters of the inventions without at least one of the following occurring: bubbling, splay formation, color formation, foaming, off-gassing, and erratic melt levels, i.e., pulsating of the polyester or the polyesters production and processing systems. There is also a need in the art for a process which makes it easier to produce the polyesters of the invention in large quantities (for example, pilot run scale and/or commercial production) without at least one of the aforesaid difficulties occurring.
SUMMARY OF THE INVENTION
[0013] It is believed that certain LCD films or sheets polyester compositions formed from terephthalic acid, an ester thereof, and/or mixtures thereof, cyclohexanedimethanol, and 2,2,4,4-tetramethyl-1,3-cyclobutanediol comprising certain thermal stabilizers, reaction products thereof, and mixtures thereof, are superior to polyesters known in the art and to polycarbonate with respect to one or more of high impact strengths, hydrolytic stability, toughness, chemical resistance, good color and clarity, long crystallization half-times, low ductile to brittle transition temperatures, lower specific gravity, and thermoformability. These compositions are believed to be similar to polycarbonate in heat resistance and are more processable on the standard industry equipment. Also, these polyesters have enhanced thermal stability allowing for easier manufacture and enhanced downstream material processing.
[0014] In one embodiment, it is believed that when at least one thermal stabilizer comprising at least one phosphorus compound described herein are used during the processes of making the polyesters according to the present invention, the polyesters can be more easily produced without at least one of the following occurring: bubbling, splay formation, color formation, foaming, off- gassing, and erratic melt levels, i.e., pulsating of the polyester or the polyesters production and processing systems. In another embodiment, it is believed that at least one process of the invention provides a means to more easily produce the polyesters useful in the invention in large quantities (for example, pilot run scale and/or commercial production) without at least one of the aforesaid difficulties occurring.
[0015] The term "large quantities" as used herein includes quantities of polyester(s) useful in the invention which are produced in quantities larger than 100 pounds. In one embodiment, the term "large quantities, as used herein, includes quantities of polyester(s) useful in the invention which are produced in quantities larger than 1000 pounds.
[0016] In one aspect, the processes of making the polyesters useful in the invention can comprise a batch or continuous process. [0017] In one aspect, the processes of making the polyesters useful in the invention comprise a continuous process.
[0018] In one aspect, the invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising: (i) 70 to 100 mole % of terephthalic acid residues; (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and (ii) cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof.
[0019] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.10 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 2000C. [0020] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt)phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C ; and wherein the polyester has a Tg from 85 to 2000C.
[0021] In one aspect, the invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues; (ji) 0 to 30 mole % of aromatic tricarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 1 to 80 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues; and
(ii) 20 to 99 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85°C to 2000C. [0022] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 80 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 20 to 60 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 2000C. [0023] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 85 to 2000C. [0024] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 55 mole % of 2,2 ,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 45 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; wherein the polyester has a Tg from 85 to 2000C.
[0025] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 40 to 50 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 50 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; wherein the polyester has a Tg from 85 to 2000C. [0026] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 45 to 55 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 45 to 55 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and . wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; wherein the polyester has a Tg from 85 to 2000C. [0027] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; and
(c) at least one branching agent or residues thereof; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt)phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C ; and wherein the polyester has a Tg from 85 to 2000C. [0028] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.75 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 100 to 2000C.
[0029] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 40 to 80 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(H) 20 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 2000C. [00301 In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 2000C. [0031] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 55 mole % of 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 45 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.75 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; wherein the polyester has a Tg from 110 to 200°C. [0032] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 50 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 50 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; wherein the polyester has a Tg from 110 to 2000C.
[0033] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 45 to 55 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 45 to 55 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; wherein the polyester has a Tg from 110 to 2000C. [0034] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 80 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 20 to 60 mole % of cyctohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.75 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 2000C. [0035] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 80 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 20 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.70 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 2000C. [0036] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 80 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 20 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.68 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 2000C.
[0037] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2 ,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; and
(ii) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to less than 0.70 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 2000C. [0038] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 2000C. [0039] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2 ,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.75 dUg as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1600C. [0040] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.75 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 1500C.
[0041] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 120 to 135°C. [0042] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyi aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.75 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 120 to 135°C. [0043] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(ii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 130 to 145°C. [0044] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(ii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.75 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 130 to 145°C.
[0045] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (ii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2 ,4,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.70 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 130 to 145°C. [0046] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.58 to 1 dUg as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 130 to 145°C. [0047] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.58 to less than 1 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 130 to 145°C. (0048] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and ii) 35 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.58 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 130 to 145°C.
(0049J In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.58 to 0.72 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 130 to 145°C. [0050] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 1 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 130 to 145°C. [0051] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) , 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising.
(i) 40 to 65 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to less than 1 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 130 to 145°C. [0052] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2,4 ,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and
(Il at least one thermal stabilizer chosen from at least one of a Iky I phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.75 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 130 to 145°C. [0053] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2 ,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.72 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 130 to 145°C. [0054] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 127°C to 2000C. {0055] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(Hi) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 80 mole % of 2,2,4 ,4-tetra methyl- 1 ,3- cyclobutanediol residues; and
(ii) 20 to 99 mole % of cyclohexanedimethanol residues; and
(M) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 127°C to 2000C. [0056] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from greater than 148°C up to 2000C. [0057] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from greater than 148°C up to 2000C. [0058] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms, and
(b) a glycol component comprising:
(i) 40 to 64.9 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyctobutanediol residues; and
(ii) 35.1 to 60 mole % of cyclohexanedimethanol residues; and (iii) 0.10 to less than 15 mole % a modifying glycol chosen from at least one of the following: ethylene glycol residues, propylene glycol, butanediol, and mixtures thereof; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryt phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; wherein the polyester has a Tg from 85 to 2000C. [0059] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at
250C; wherein the polyester has a Tg from 85 to 2000C and optionally, wherein one or more branching agents is added prior to or during the polymerization of the polymer.
[0060] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 64.9 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 35.1 to 60 mole % of cyclohexanedimethanol residues; and
(iii) 0.01 to less than 15 mole % of a modifying glycol chosen from at least one of the following: ethylene glycol residues, propylene glycol, butanediol, and mixtures thereof; and
(II) at least one thermal stabilizer chosen from at least one of alky I phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.75 dl_/g or less as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; wherein the polyester has a Tg from 110 to 2000C. [0061] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 35 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; wherein the polyester has a Tg from 110 to 2000C; and optionally, wherein one or more branching agents is added prior to or during the polymerization of the polymer.
[0062] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues; (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(Hi) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt)phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; wherein the polyester has a Tg from 110 to 2000C.
[0063] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 65 mole % of 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol residues; and (ii) 35 to 60 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt)phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; wherein the polyester has a Tg from 110 to 2000C.
[0064] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 40 to 64.9 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 35 to 59.9 mole % of cyclohexanedimethanol residues; and
(iii) 0.01 to less than 15 mole % of a modifying glycol chosen from at least one of the following: ethylene glycol residues, propylene glycol, butanediol, and mixtures thereof; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.75 dl_/g or less as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; wherein the polyester has a Tg from 110 to 2000C.
[0065] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at
25°C; wherein the polyester has a Tg from 110 to 2000C and optionally, wherein one or more branching agents is added prior to or during the polymerization of the polymer. [0066] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; and
(c) at least one branching agent; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.72 dl_/g as determined in 60/40 (wt/wt)phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C ; and wherein the polyester has a Tg from 110 to 2000C.
[0067] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) greater than 40 to 99 mole % of 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol residues; and
(ii) 1 to less than 60 mole % of cyclohexanedimethanol residues;
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.10 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; wherein the polyester has a Tg from 85 to 2000C; wherein if ethylene glycol residues is present in the glycol component, it is present in the polyester at less than 15 mole %.
[0068] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) from 10 to 100 mole % of 2,2,4 ,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) up to 90 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %.
[0069] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 100 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues; and
(ii) up to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the amoφhous polyester has a glass transition temperature (Tg) of greater than
1200C.
[0070] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising: (i) 70 to 100 mole % of terephthalic acid residues; (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(H) 1 to 99 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.10 to less than 1 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 125CC. [0071) In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and (ii) 1 to 99 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.10 to less than 1 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 1200C. [0072] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 85 to 125°C. [0073J In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.5 to 1.2 dL/g as determined in
60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at
250C; and wherein the polyester has a Tg from 85 to 1200C.
[0074] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues; (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4 ,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 1200C. [0075] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 95°C to 115°C. [0076] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to less than 1 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 95°C to 115°C. [0077] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 5 to less than 50 mole % of 2,2,4 ,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) greater than 50 to 95 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 125°C.
[0078] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (Hi) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 5 to less than 50 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) greater than 50 to 95 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of a Iky I phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 85 to 1200C.
[0079] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 10 to 30 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 70 to 90 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 85 to 1200C. In one embodiment, the Tg of the polyester is from 100 to 1200C.
[0080] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 15 to 25 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 75 to 85 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity is from 0.50 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 1200C. In one embodiment, the Tg of the polyester is from 100 to 1200C.
[0081] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 15 to 25 mole % of 2,2 ,4,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 75 to 85 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity is from 0.50 to 0.8 dl_/g as determined in 60/40
(wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 1200C. In one embodiment, the Tg of the polyester is from 100 to 1200C.
[0082] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues; (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 15 to 25 mole % of 2,2 ,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 75 to 85 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity is from 0.50 to 0.75 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 1200C. In one embodiment, the Tg of the polyester is from 100 to 1200C.
[0083] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises: \
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and (H) 1 to 99 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the di car boxy lie acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 100 to 1200C. [0084] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 15 to 25 mole % of 2,2.4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 75 to 85 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity is from 0.50 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 100 to 1200C. In one embodiment, the Tg of the polyester is from 100 to 1200C.
[0085] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 5 to less than 50 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues; and
(ii) greater than 50 to 95 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 95 to 115°C.
[0086] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues; (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 10 to 30 mole % of 2,2 ,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 70 to 90 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 95 to 115°C. [0087] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 15 to 25 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 75 to 85 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 95 to 115°C. [0088] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 5 to less than 50 mole % of 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) greater than 50 to 95 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 125°C. [0089] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 5 to less than 50 mole % of 2,2 ,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) greater than 50 to 95 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 1200C. [0090] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 5 to less than 50 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) greater than 50 to 95 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyi aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.60 to 0.75 dUg as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 1200C. [0091] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 5 to less than 50 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues; and
(ii) greater than 50 to 95 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of a Iky I phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.65 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 1200C. [0092] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 5 to less than 50 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) greater than 50 to 95 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.68 to 0.78 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 1200C. [0093] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 10 to 30 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 70 to 90 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole'%; and wherein the inherent viscosity of the polyester is from 0.5 to 0.8 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 1200C. In one embodiment, the Tg of the polyester is from 100 to 1200C.
[0094] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues; (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 10 to 30 mole % of 2,2 ,4,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 70 to 90 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.8 dL/g as determined in 60/40 (wt/wt) phenol/tetrachtoroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 1200C. In one embodiment, the Tg of the polyester is from 100 to 1200C.
[0095] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 10 to 30 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and (ii) 70 to 90 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 1200C. In one embodiment, the Tg of the polyester is from 100 to 1200C. [0096] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole.% of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 15 to 25 mole % of 2.2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 75 to 85 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 85 to 1200C.
In one embodiment, the Tg of the polyester is from 100 to 1200C.
[0097J In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 17 to 28 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 72 to 83 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.65 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 1200C.
In one embodiment, the Tg of the polyester is from 100 to 120°C.
[0098] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises: (a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 17 to 28 mole % of 2,2 ,4,4-tetramethyl-i .3- cyclobutanediol residues; and
(ii) 72 to 83 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.65 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 100 to 120βC. In one embodiment, the Tg of the polyester is from 100 to 1200C. [0099] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising: (i) 17 to 28 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 72 to 83 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alky I phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.7 to 0.8 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 85 to 1200C. In one embodiment, the Tg of the polyester is from 100 to 1200C. [00100] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 17 to 28 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 72 to 83 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.7 to 0.8 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 100 to 12O0C.
In one embodiment, the Tg of the polyester is from 100 to 1200C.
[00101] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 17 to 28 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 72 to 83 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.65 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 100 to 115°C.
In one embodiment, the Tg of the polyester is from 100 to 1200C.
[00102] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising: (I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 5 to less than 50 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) greater than 50 to 95 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 95 to 115°C.
[00103] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising: (i) 10 to 30 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 70 to 90 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 95 to 115°C. [00104] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 15 to 25 mole % of 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 75 to 85 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 95 to 115°C. [00105] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 15 to 25 mole % of 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 75 to 85 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.72 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 95 to 115°C.
[00106] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues; (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 0.01 to less than 5 mole % of 2,2.4,4-tetramethyl-i ,3- cyclobutanediol residues;
(ii) ethylene glycol residues, and (iii) optionally, cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 60 to 1100C. [00107] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 0.01 to 4.5 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) ethylene glycol residues, and iii) optionally, cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 60 to 1100C. [00108] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 0.01 to 4 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues;
(ii) ethylene glycol residues, and
(iii) optionally, cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 60 to 1100C. [00109] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 0.01 to 3 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues;
(ii) ethylene glycol residues, and (iii) cyclohexanedimethanol residues
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %. and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 60 to 1100C. [00110] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic tricarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 0.01 to 2.0 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) ethylene glycol residues, and (iii) optionally, cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of a Iky I phosphate esters, aryl phosphate esters, mixed a Iky I aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 60 to 1100C. [00111] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising.
(i) 0.01 to 1 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) ethylene glycol residues, and
(iii) cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 60 to 1100C. [00112] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 0.01 to less than 1 mole % of 2,2,4,4-tetramethyl-1,3- cyclobutanediol residues;
(ii) ethylene glycol residues and
(iii) cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 60 to1100C. [00113] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 0.01 to 15 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) ethylene glycol residues, and
(iii) cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 60 to 1100C.
[00114] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 0.01 to 15 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues;
(ii) 70 to 99.98 mole % ethylene glycol residues, and (iii) 0.01 to 15 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 60 to 1100C. [00115] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 0.01 to 10 mole % of 2,2,4 ,4-tetra methyl- 1 ,3- cyclobutanediol residues;
(ii) ethylene glycol residues, and
(iii) cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryi phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 60 to 1100C. [00116] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 0.01 to 10 mole % of 2,2,4,4-tetramethyM .3- cyclobutanediol residues;
(ii) 80 to 99.98 mole % of ethylene glycol residues, and (iii) 0.01 to 10 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 60 to 1100C. [00117] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 0.01 to 5 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) ethylene glycol residues, and
(iii) cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 60 to 1100C.
[00118] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 0.01 to less than 5 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 90 to 99.98 mole % of ethylene glycol residues, and (iii) 0.01 to 5 mole % of cyclohexanedimethaπol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 60 to 1100C. [00119] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 0.01 to 4.5 mole % of 2,2,4 ,4-tetramethyM ,3- cyclobutanediol residues;
(ii) ethylene glycol residues, and
(iii) cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 60 to 1100C. [00120] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 0.01 to 4 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) ethylene glycol residues, and
(iii) cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dUg as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 60 to 1100C. [00121] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 0.01 to 3 mole % of 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) ethylene glycol residues, and
(iii) cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 60 to 1100C.
[00122] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 0.01 to 2.0 mole % of 2,2 ,4,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) ethylene glycol residues, and (iii) cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; and wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 60 to 1100C. [00123] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 0.01 to 1 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) ethylene glycol residues, and
(iii) cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 60 to 1100C. [00124] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 0.01 to less than 1 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) ethylene glycol residues, and
(iii) cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 60 to 1100C. [00125] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 0.01 to 5 mole % of 2,2 ,4,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 90 to 99.98 mole % of ethylene glycol residues, and (iii) 0.01 to 5 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 60 to 1100C.
[00126] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 0.01 to less than 5 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) greater than 90 to 99.98 mole % of ethylene glycol residues, and
(iii) 0.01 to 5 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 60 to 1100C. [00127] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 0.01 to 4 mole % of 2,2,4 ,4-tetra methyl- 1 ,3- cyclobutanediol residues;
(ii) 91 to 99.98 mole % of ethylene glycol residues, and (iii) 0.01 to 5 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 60 to 1100C. [00128] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 0.01 to 3 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 92 to 99.98 mole % of ethylene glycol residues, and
(iii) 0.01 to 5 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 60 to 1100C. [00129] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 0.01 to 2 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 93 to 99.98 mole % of ethylene glycol residues, and (iii) 0.01 to 5 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 60 to 1100C.
[00130] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising: (i) 70 to 100 mole % of terephthalic acid residues; (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 0.01 to 1 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 94 to 99.98 mole % of ethylene glycol residues, and (iii) 0.01 to 5 mole % of cyclohexanedimethanol residues; and
(il) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryi phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 60 to 1100C. [00131] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 0.01 to less than 1 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; (ii) greater than 94 to 99.98 mole % of ethylene glycol (iii) 0.01 to 5 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 60 to 1100C. [00132] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 13O0C. [00133] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4 ,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 128°C.
[00134] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues; (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 126°C. [00135] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 123°C. [00136] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1200C. [00137) In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2 ,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.5 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1300C.
[00138] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.5 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 128°C. [00139] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.5 to 1.2 dUg as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 126°C. [00140] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.5 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 123°C. [00141] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2 ,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.5 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 1200C.
[00142] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic tricarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to .72 dL/g determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 1300C. [00143] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to .72 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 128°C. [00144] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.72 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 126°C. [00145] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2 ,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.72 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 123°C.
[00146] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4 ,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.72 dUg as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1200C. [00147] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.7 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 1300C. [00148] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2 ,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.7 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 128°C. [00149] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.7 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 126°C.
[00150] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.7 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 123°C. [00151] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.7 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1200C. [00152] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.68 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1300C. [00153] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.68 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 128°C. [00154] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.68 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg
[00155] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.68 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 123°C. [00156] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 25 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.68 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 120°C. [001S7] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 28 to 38 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 62 to 72 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1300C. [00158] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 28 to 38 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 62 to 72 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.5 to 1.2 dUg as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1300C. [001S9] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 28 to 38 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 62 to 72 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.72 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1300C. [00160] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 28 to 38 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 62 to 72 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.7 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1300C. [00161] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 28 to 38 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues;
(ii) 62 to 72 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.68 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 1300C.
[00162] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 28 to 38 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 62 to 72 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.682 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 128°C. [00163] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 28 to 38 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 62 to 72 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.68 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 1260C. [00164] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 28 to 38 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 62 to 72 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.68 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 123°C. [00165] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 28 to 38 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues;
(ii) 62 to 72 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.68 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1200C.
[00166] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1300C. [00167] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 75 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 128°C. [00168] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.5 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1300C. [00169] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2,4,4-tetramethyM .3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.5 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 128°C.
[00170] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2.4,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.5 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 126°C. [00171] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and (M) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.5 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 123°C. [00172] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2 ,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.5 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1200C. [00173] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.72 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1300C.
[00174] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2 ,4,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.72 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 128°C. [00175] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %. and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.72 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 126°C. [00176] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.72 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 123°C. [00177] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2 ,4,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.72 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1200C.
[00178] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.68 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1300C. [00179] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2,4 ,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.68 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 128 to 1300C. [00180] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyctohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.68 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 126°C. [00181] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2 ,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and
(M) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.68 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 123°C. [00182] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2 ,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.68 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1200C. [00183] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 40 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 60 to 70 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 1300C. [00184] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 40 mole % of 2,2.4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 60 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 128°C. [00185] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 40 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 60 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.5 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 1300C.
[00186] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 30 to 40 mole % of 2,2,4,4-tetramethyM ,3- cyclobutaπediol residues;
(ii) 60 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.5 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 128°C. [00187] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 40 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 60 to 70 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.5 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 126°C. [00188] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 40 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 60 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.5 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 123°C. [00189] in one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(H) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 40 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 60 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.5 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 110 to 1200C.
[00190] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iij) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 30 to 40 mole % of 2,2.4,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 60 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof, wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.72 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1300C. [00191] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 40 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues;
(ii) 60 to 70 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.72 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 128°C. [00192] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 40 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 60 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.72 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 126°C. [00193] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 40 mole % of 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 60 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of a Iky I phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.72 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 123°C.
(00194] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 30 to 40 mole % of 2,2,4 ,4-tetramethyl-i ,3- cyclobutanediol residues;
(ii) 60 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.72 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1200C. [00195] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 40 mole % of 2,2,4 ,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 60 to 70 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.68 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1300C. [00196] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 40 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 60 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.68 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 128°C. [00197] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 40 mole % of 2.2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 60 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.68 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 126°C.
[00198] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 30 to 40 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 60 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.68 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 123°C. [00199] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 40 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 60 to 70 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.6 to 0.68 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 110 to 1200C. [00200] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 20 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 80 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.55 to 0.80 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C. [00201] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 20 to 35 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues;
(ii) 65 to 80 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the polyester has a Tg from 95 to 1500C.
[00202] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising: (i) 20 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 80 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.55 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C.
[00203] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 20 to 35 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 65 to 80 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the polyester has a Tg from 100 to 125°C.
[00204] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 20 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 80 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of a Iky I phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.55 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 100 to 125°C.
[00205] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (Hi) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 20 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 80 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.55 to 0.80 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 95 to 1500C. [00206] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 20 to 25 mole % of 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 75 to 80 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alky I phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.69 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C.
[002071 In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 20 to 25 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 75 to 80 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the polyester has a Tg from 105 to 112°C.
[00208] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises: (a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 20 to 25 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 75 to 80 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.69 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 105 to 112°C. [00209] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 20 to 25 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; (ii) 75 to 80 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.72 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C. [00210] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 20 to 25 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 75 to 80 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is 0.72 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 105 to 112°C. [00211] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and
(M) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.61 to 0.68 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C.
[00212] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2 ,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the polyester has a Tg from 114 to 1200C.
[00213] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.61 to 0.68 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 114 to 1200C.
[00214] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.64 to 0.65 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C.
[00215] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises: (a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mote % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 30 to 35 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 65 to 70 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of a Iky I phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.64 to 0.65 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 114 to 1200C. [00216] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 20 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; (ii) 65 to 80 mole % of cyclohexanedimethanol residues; and
(II) at (east one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.55 to 0.67 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C.
[00217] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 20 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 80 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the polyester has a Tg from 105 to 1200C. [00218] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 20 to 35 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues;
(ii) 65 to 80 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.55 to 0.67 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the polyester has a Tg from 105 to 1200C.
[00219] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 20 to 35 mole % of 2,2,4 ,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 80 mole % of cyclohexanedimethanol residues, and
(II) at least one thermal stabilizer chosen from at least one of a Iky I phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof, wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.60 to 0.64 dLVg as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C.
[00220] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 20 to 35 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 80 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the polyester has a Tg from 108 to 116°C.
[00221] In one aspect, this invention relates to an LCD film or sheet comprising a polyester composition comprising:
(I) at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 20 to 35 mole % of 2,2 ,4,4-tetramethyM ,3- cyclobutanediol residues;
(ii) 65 to 80 mole % of cyclohexanedimethanol residues; and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.60 to 0.64 dl_/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the polyester has a Tg from 108 to 116°C. [00222] In one aspect, the invention comprises a process for making an LCD film or sheet comprising a process for making any of the polyesters useful in the invention comprising the following steps: (I) heating a mixture at at least one temperature chosen from 1500C to 2500C, under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.0-1.5/1.0; wherein the mixture in Step (I) is heated in the presence of: (i) at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide; and (ii) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof;
(II) heating the product of Step (I) at a temperature of 2300C to 3200C for 1 to 6 hours, under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, to form a final polyester; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of the final polyester is from 0.35 to 1.2 dUg as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the final polyester has a Tg from 85 to 2000C.
[00223] In one aspect, the invention comprises a process for making an LCD film or sheet comprising a process for making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 1500C to 2500C, under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2.2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.05-1.15/1.0; wherein the mixture in Step (I) is heated in the presence of: (i) at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide; and (ii) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof;
(II) heating the product of Step (I) at a temperature of 2300C to 32O0C for 1 to 6 hours, under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, to form a final polyester; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of the final polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the final polyester has a Tg from 85 to 2000C.
[00224] In one aspect, the invention comprises a process for making an LCD film or sheet comprising a process for making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 1500C to 2500C, under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.0-1.5/1.0; wherein the mixture in Step (I) is heated in the presence of: (i) at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide;
(II) heating the product of Step (I) at a temperature of 2300C to 3200C for 1 to 6 hours under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, in the presence of at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of a final polyester is from 0.35 to 1.2 dLJg as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the final polyester has a Tg from 85 to 2000C.
[00225] In one aspect, the invention comprises a process for making an LCD film or sheet comprising a process for making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 1500C to 2500C1 under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4 ,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.05-1.15/1.0; wherein the mixture in Step (I) is heated in the presence of at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide;
(II) heating the product of Step (I) at a temperature of 2300C to 3200C for 1 to 6 hours under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, in the presence of at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of the final polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the final polyester has a Tg from 85 to 2000C.
[00226] In one aspect, the invention comprises a process for making an LCD film or sheet comprising a process for making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 1500C to 2500C, under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises: (a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2 ,4,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.0-1.5/1.0; wherein the mixture in Step (I) is heated in the presence of: (i) at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide; and (ii) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof;
(II) heating the product of Step (I) at a temperature of 2500C to 3050C for 1 to 6 hours, under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, to form a final polyester; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of the final polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the final polyester has a Tg from 85 to 2000C. [00227] In one aspect, the invention comprises a process for making an LCD film or sheet comprising a process for making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 1500C to 2500C, under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.05-1.15/1.0; wherein the mixture in Step (I) is heated in the presence of: (i) at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide; and (ii) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; (II) heating the product of Step (I) at a temperature of 2500C to 3050C for 1 to 6 hours, under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, to form a final polyester; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of the final polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the final polyester has a Tg from 85 to 2000C.
[00228] In one aspect, the invention comprises a process for making an LCD film or sheet comprising a process for making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 1500C to 2500C, under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.0-1.5/1.0; wherein the mixture in Step (I) is heated in the presence of at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide;
(II) heating the product of Step (I) at a temperature of 2500C to
3050C for 1 to 6 hours under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, in the presence of at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of the final polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the final polyester has a Tg from 85 to 200°C.
[00229] In one aspect, the invention comprises a process for making an LCD film or sheet comprising a process for making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 1500C to 200°C. under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising: (i) 1 to 99 mole % of 2.2,4,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.0-1.5/1.0; wherein the mixture in Step (I) is heated in the presence of: (i) at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide; and (ii) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof;
(II) heating the product of Step (I) at a temperature of 2300C to 3200C for 1 to 6 hours, under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, to form a final polyester; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of the final polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the final polyester has a Tg from 85 to 200°C.
[00230] In one aspect, the invention comprises a process for making an LCD film or sheet comprising a process for making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 1500C to 2000C, under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising: (i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.05-1.15/1.0; wherein the mixture in Step (F) is heated in the presence of: (i) at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide; and (ii) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof;
(II) heating the product of Step (I) at a temperature of 2300C to 3200C for 1 to 6 hours, under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, to form a final polyester; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of the final polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the final polyester has a Tg from 85 to 200°C. [00231] In one aspect, the invention comprises a process for making an LCD film or sheet comprising a process for making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 150°C to 2000C, under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.0-1.5/1.0; wherein the mixture in Step (I) is heated in the presence of: (i) at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide;
(II) heating the product of Step (I) at a temperature of 2300C to 3200C for 1 to 6 hours under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, in the presence of at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of a final polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the final polyester has a Tg from 85 to 2000C.
[00232] In one aspect, the invention comprises a process for making an LCD film or sheet comprising a process for making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 1500C to 200°C, under at least one pressure chosen from the range of 0 psig to
75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4 ,4-tetra methyl- 1 ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.05-1.15/1.0; wherein the mixture in Step (I) is heated in the presence of at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide;
(II) heating the product of Step (I) at a temperature of 2300C to 3200C for 1 to 6 hours under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, in the presence of at least one thermal stabilizer chosen from at least one of a Iky I phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of the final polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the final polyester has a Tg from 85 to 2000C.
[00233] In one aspect, the invention comprises a process for making an LCD film or sheet comprising a process for making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 1500C to 2000C1 under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising: (i) 1 to 99 mole % of 2,2 ,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.0-1.5/1.0; wherein the mixture in Step (I) is heated in the presence of: (i) at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide; and (ii) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof;
(II) heating the product of Step (I) at a temperature of 250βC to 3050C for 1 to 6 hours, under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, to form a final polyester; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of the final polyester is from 0.35 to 1.2 dUg as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the final polyester has a Tg from 85 to 2000C.
[00234] In one aspect, the invention comprises a process for making an LCD film or sheet comprising a process for making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 1500C to 2000C, under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising: (i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.05-1.15/1.0; wherein the mixture in Step (I) is heated in the presence of: (i) at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide; and (ii) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof;
(II) heating the product of Step (I) at a temperature of 2500C to 3050C for 1 to 6 hours, under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, to form a final polyester; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of the final polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the final polyester has a Tg from 85 to 200° C. [00235] In one aspect, the invention comprises a process for making an LCD film or sheet comprising a process for making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 1500C to 2000C, under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.0-1.5/1.0; wherein the mixture in Step (I) is heated in the presence of at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide;
(II) heating the product of Step (I) at a temperature of 2500C to 3050C for 1 to 6 hours under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, in the presence of at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of the final polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the final polyester has a Tg from 85 to 2000C.
[00236] In one aspect, the invention comprises a process for making an LCD film or sheet comprising a process for making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 1500C to 2000C, under at least one pressure chosen from the range of 0 psig to
75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.05-1.15/1.0; wherein the mixture in Step (I) is heated in the presence of at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide;
(II) heating the product of Step (I) at a temperature of 2500C to 3050C for 1 to 6 hours under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, in the presence of at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of the final polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the final polyester has a Tg from 85 to 200°C.
[00237] In one aspect, the invention comprises a process for making an LCD film or sheet comprising a process for making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 1500C to 2000C, under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising: (i) 1 to 99 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.0-1.5/1.0; wherein the mixture in Step (I) is heated in the presence of: (i) at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide; and (ii) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof;
(II) heating the product of Step (I) at a temperature of 2300C to 3200C for 1 to 6 hours, under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, to form a final polyester; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of the final polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the final polyester has a Tg from 85 to 200°C.
[00238] In one aspect, the invention comprises a process for making an LCD film or sheet comprising a process for making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 1500C to 200°C, under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising: (i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.05-1.15/1.0; wherein the mixture in Step (I) is heated in the presence of: (i) at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide; and (ii) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; to form a polyester; and (II) heating the product of Step (I) at a temperature of 2300C to 3200C for 1 to 6 hours, under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 ton* absolute, to form a final polyester; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of the final polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C; and wherein the final polyester has a Tg from 85 to 2000C. [00239] In one aspect, the invention comprises a process for making an LCD film or sheet comprising a process for making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 1500C to 2000C, under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.0-1.5/1.0; wherein the mixture in Step (I) is heated in the presence of at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide;
(II) heating the product of Step (I) at a temperature of 2300C to 3200C for 1 to 6 hours under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, in the presence of at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed a Iky I aryl phosphate esters, reaction products thereof, and mixtures thereof; to form a polyester; and wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of the final polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the final polyester has a Tg from 85 to 2000C.
[00240] In one aspect, the invention comprises a process for making an LCD film or sheet comprising a process for making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 1500C to 2000C, under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.05-1.15/1.0; wherein the mixture in Step (I) is heated in the presence of at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide;
(II) heating the product of Step (I) at a temperature of 2300C to 3200C for 1 to 6 hours under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, in the presence of at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; to form a polyester; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of the final polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the final polyester has a Tg from 85 to 2000C.
[00241] In one aspect, the polyesters useful in the invention can comprise at least one phosphate ester whether or not present as a thermal stabilizer.
[00242] In one aspect, the polyesters useful in the invention can comprise at least one phosphate ester described herein which is present as a thermal stabilizer.
[00243] In one aspect, the polyesters and/or polyester compositions useful in the invention can comprise phosphorus atoms.
[00244] In one aspect, the polyesters and/or polyester compositions useful in the invention can comprise tin atoms.
[00245] In one aspect, the polyester compositions of the invention contain at least one polycarbonate.
[00246] In one aspect, the polyester compositions of the invention contain no polycarbonate.
[00247] In one aspect, the polyesters useful in the invention contain less than
15 mole % ethylene glycol residues, such as, for example, 0.01 to less than 15 mole % ethylene glycol residues. [00248] In one aspect, the polyesters useful in the invention contain ethylene glycol residues.
[00249] In one aspect, the polyesters useful in the invention contain no ethylene glycol residues.
[00250] In one aspect, the polyesters useful in the invention contain 50 to 99.99 mole % ethylene glycol residues.
[00251] In one aspect, the polyesters useful in the invention contain no branching agent, or alternatively, at least one branching agent is added either prior to or during polymerization of the polyester.
[00252] In one aspect, the polyesters useful in the invention contain at least one branching agent without regard to the method or sequence in which it is added.
[00253] In one aspect, the polyesters useful in the invention are made from no 1 , 3-propanediol, or, 1 , 4-butanediol, either singly or in combination. In other aspects, 1 ,3-propanediot or 1 , 4-butanediol, either singly or in combination, may be used in the making of the polyesters useful in this invention. [00254] In one aspect of the invention, the mole % of cis-2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol useful in certain polyesters useful in the invention is greater than 50 mole % or greater than 55 mole % of cis-2,2,4,4-tetramethyl-1 ,3- cyclobutanediol or greater than 70 mole % of cis-2,2,4,4-tetramethyl-1 ,3- cyclobutanediol; wherein the total mole percentage of cis-2,2,4,4-tetramethyl-1 ,3- cyclobutanediol and trans-2,2,4,4-tetramethyl-1 ,3-cyclobutanediol is equal to a total of 100 mole %.
[00255] In one aspect of the invention, the mole % of the isomers of 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol useful in certain polyesters useful in the invention is from 30 to 70 mole % of cis-2,2,4,4-tetramethyl-1 ,3-cyclobutanediol or from 30 to 70 mole % of trans^^Λ^-tetramethyM ,3-cyclobutanediol, or from 40 to 60 mole % of cis-2,2,4,4-tetramethyl-1 ,3-cyclobutanediol or from 40 to 60 mole % of trans-2,2,4,4-tetramethyl-1 ,3-cyclobutanediol, wherein the total mole percentage of cis-2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and trans-2,2,4,4-tetramethyl-1 ,3- cyclobutanediol is equal to a total of 100 mole %. [00256] In one aspect, certain polyesters useful in the invention may be amorphous or semicrystalline. In one aspect, certain polyesters useful in the invention can have a relatively low crystallinity. Certain polyesters useful in the invention can thus have a substantially amorphous morphology, meaning that the polyesters comprise substantially unordered regions of polymer. [00257] In one aspect, the polyesters useful in the invention can comprise at least one thermal stabilizer which comprises at least one phosphorus compound. [00258] In one aspect, the polyesters useful in the invention can comprise phosphorus atoms and tin atoms.
[00259] In one aspect, any of the polyester compositions of the invention may comprise at least one tin compound and at least one titanium compound. [00260] In one aspect, any of the processes of making the polyesters useful in the invention may be prepared using at least one tin compound and at least one titanium compound.
[00261] In one aspect, the phosphorus compounds useful in the invention comprise phosphoric acid, phosphorous acid, phosphonic acid, phosphinic acid, phosphonous acid, and various esters and salts thereof. The esters can be alky I, branched alkyl, substituted alkyl, difunctional alky I, alkyl ethers, aryl, and substituted aryl.
[00262] In one aspect, the phosphorus compounds useful in the invention comprise at least one thermal stabilizer chosen from at least one of substituted or unsubstituted alkyl phosphate esters, substituted or unsubstituted aryl phosphate esters, substituted or unsubstituted mixed alkyl aryl phosphate esters, diphosphites, salts of phosphoric acid, phosphine oxides, and mixed alkyl aryl phosphites, reaction products thereof, and mixtures thereof. The phosphate esters include esters in which the phosphoric acid is fully esterified or only partially esterified.
[00263] In one aspect, the phosphorus compounds useful in the invention comprise at least one thermal stabilizer chosen from at least one of substituted or unsubstituted alkyl phosphate esters, substituted or unsubstituted aryl phosphate esters, mixed substituted or unsubstituted alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof. The phosphate esters include esters in which the phosphoric acid is fully esterified or only partially esterified.
[00264] In one aspect, the phosphorus compounds useful in the invention are chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products, thereof, and mixtures thereof.
[0026S] In one aspect, any of the polyester compositions of the invention may comprise at least one aryl phosphate ester.
[00266] In one aspect, any of the polyester compositions of the invention may comprise at least one unsubstituted aryl phosphate ester.
[00267] In one aspect, any of the polyester compositions of the invention may comprise at least one aryl phosphate ester which is not substituted with benzyl groups.
[00268] In one aspect, any of the polyester compositions of the invention may comprise at least one triaryl phosphate ester.
[00269] In one aspect, any of the polyester compositions of the invention may comprise at least one triaryl phosphate ester which is not substituted with benzyl groups.
[00270] In one aspect, any of the polyester compositions of the invention may comprise at least one alkyl phosphate ester.
[00271] In one aspect, any of the polyester compositions of the invention may comprise triphenyl phosphate and/or Merpol A. In one embodiment, any of the polyester compositions of the invention may comprise triphenyl phosphate.
In one aspect, any of processes described herein for making the polyester compositions and/or polyesters comprise at least one of the phosphorus compounds described herein.
[00272] It is believed that any of the processes of making the polyesters useful in the invention may be used to make any of the polyesters useful in the invention.
[00273] In one aspect, the pressure used in Step (I) of any of the processes of the invention consists of at least one pressure chosen from 0 psig to 75 psig. In one embodiment, the pressure used in Step (I) of any of the processes of the invention consists of at least one pressure chosen from 0 psig to 50 psig. [00274] In one aspect, the pressure used in Step (II) of any of the processes of the invention consists of at least one pressure chosen from 20 torr absolute to 0.02 torr absolute; in one embodiment, the pressure used in Step (II) of any of the processes of the invention consists of at least one pressure chosen from 10 torr absolute to 0.02 torr absolute; in one embodiment, the pressure used in Step (II) of any of the processes of the invention consists of at least one pressure chosen from 5 torr absolute to 0.02 torr absolute; in one embodiment, the pressure used in Step (II) of any of the processes of the invention consists of at least one pressure chosen from 3 torr absolute to 0.02 torr absolute; in one embodiment, the pressure used in Step (II) of any of the processes of the invention consists of at least one pressure chosen from 20 torr absolute to 0.1 torr absolute; in one embodiment, the pressure used in Step (II) of any of the processes of the invention consists of at least one pressure chosen from 10 torr absolute to 0.1 torr absolute; in one embodiment, the pressure used in Step (II) of any of the processes of the invention consists of at least one pressure chosen from 5 torr absolute to 0.1 torr absolute; in one embodiment, the pressure used in Step (II) of any of the processes of the invention consists of at least one pressure chosen from 3 torr absolute to 0.1 torr absolute.
[00275] In one aspect, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.0- 1.5/1.0; in one aspect, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.01- 1.5/1.0; in one aspect, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.01- 1.3/1.0; in one aspect, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.01- 1.2/1.0; in one aspect, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.01- 1.15/1.0; in one aspect, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.01- 1.10/1.0; in one aspect, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.03- 1.5/1.0; in one aspect, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.03- 1.3/1.0; in one aspect, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.03- 1.2/1.0; in one aspect, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.03- 1.15/1.0; in one aspect, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.03- 1.10/1.0; in one aspect, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.05- 1.5/1.0; in one aspect, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.05- 1.3/1.0; in one aspect, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.05- 1.2/1.0; in one aspect, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.05- 1.15/1.0; and in one aspect, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.01- 1.10/1.0.
[00276] In any of the process embodiments for making the polyesters useful in the invention, the heating time of Step (II) may be from 1 to 5 hours. In any of the process embodiments for making the polyesters useful in the invention, the heating time of Step (II) may be from 1 to 4 hours. In any of the process embodiments for making the polyesters useful in the invention, the heating time of Step (II) may be from 1 to 3 hours. In any of the process embodiments for making the polyesters useful in the invention, the heating time of Step (II) may be from 1.5 to 3 hours. In any of the process embodiments for making the polyesters useful in the invention, the heating time of Step (II) may be from 1 to 2 hours.
[00277J In another aspect, any of the polyester compositions and/or processes of the invention may comprise at least one tin compound as described herein. [00278] In one aspect, any of the polyester compositions and/or processes of the invention may comprise at least one tin compound and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide. [00279] In one embodiment, any of the polyester compositions and/or processes of making the polyesters useful in the invention may be prepared using at least one tin compound and at least one catalyst chosen from titanium compound as catalysts.
[00280] In one embodiment, the addition of the phosphorus compound(s) in the process(es) of the invention can result in a weight ratio of total tin atoms to total phosphorus atoms in the final polyester of 2-10:1. In one embodiment, the addition of the phosphorus compound(s) in the process(es) can result in a weight ratio of total tin atoms to total phosphorus atoms in the final polyester of 5-9:1. In one embodiment, the addition of the phosphorus compound(s) in the process(es) can result in a weight ratio of total tin atoms to total phosphorus atoms in the final polyester of 6-8:1. In one embodiment, the addition of the phosphorus compound(s) in the process(es) can result in a weight ratio of total tin atoms to total phosphorus atoms in the final polyester of 7:1. For example, the weight of tin atoms and phosphorus atoms present in the final polyester can be measured in ppm and can result in a weight ratio of total tin atoms to total phosphorus atoms in the final polyester of any of the aforesaid weight ratios. [00281] In one embodiment, the amount of tin atoms in the final polyesters useful in the invention can be from 15 to 400 ppm tin atoms based on the weight of the final polyester.
[00282] In one embodiment, the amount of tin atoms in the final polyesters useful in the invention can be from 25 to 400 ppm tin atoms based on the weight of the final polyester.
[00283] In one embodiment, the amount of tin atoms in the final polyesters useful in the invention can be from 40 to 200 ppm tin atoms based on the weight of the final polyester. [00284] In one embodiment, the amount of tin atoms in the final polyesters useful in the invention can be from 50 to 125 ppm tin atoms based on the weight of the final polyester.
[00285] In one embodiment, the amount of phosphorus atoms in the final polyesters useful in the invention can be from 1 to 100 ppm phosphorus atoms based on the weight of the final polyester.
[00286] In one embodiment, the amount of phosphorus atoms in the final polyesters useful in the invention can be from 4 to 60 ppm phosphorus atoms based on the weight of the final polyester.
[00287] In one embodiment, the amount of phosphorus atoms in the final polyesters useful in the invention can be from 6 to 20 ppm phosphorus atoms based on the weight of the final polyester.
[00288] In one embodiment, the amount of phosphorus atoms in the final polyesters useful in the invention can be from 1 to 100 ppm phosphorus atoms based on the weight of the final polyester and the amount of tin atoms in the final polyester can be from 15 to 400 ppm tin atoms based on the weight of the final polyester.
[00289] In one embodiment, the amount of phosphorus atoms in the final polyesters useful in the invention can be from 1 to 100 ppm phosphorus atoms based on the weight of the final polyester and the amount of tin atoms in the final polyester can be from 25 to 400 ppm tin atoms based on the weight of the final polyester.
[00290] In one embodiment, the amount of phosphorus atoms in the final polyesters useful in the invention can be from 4 to 60 ppm phosphorus atoms based on the weight of the final polyester and the amount of tin atoms in the final polyester can be from 40 to 200 ppm tin atoms based on the weight of the final polyester.
[00291] In one embodiment, the amount of phosphorus atoms in the final polyesters useful in the invention can be from 6 to 20 ppm phosphorus atoms based on the weight of the final polyester and the amount of tin atoms in the final polyester can be from 50 to 125 ppm tin atoms based on the weight of the final polyester. [00292] In one aspect, any of the processes described herein for making any of the polyester compositions and/or polyesters can comprise in addition to at least one phosphate ester at least one mixed alkyl aryl phosphite, such as, for example, bis(2,4-dicumylphenyl)pentaerythritol diphosphite also known as
Doverphos S-9228 (Dover Chemicals, CAS# 154862-43-8).
[00293] In one aspect, any of the processes described herein for making any of the polyester compositions and/or polyesters can comprise in addition to at least one phosphate ester, at least one one phosphine oxide.
[00294] In one aspect, any of the processes described herein for making any of the polyester compositions and/or polyesters can comprise in addition to at least one phosphate ester, at least one salt of phosphoric acid such as, for example,
KH2PO4 and Zn3(PCU)2.
[00295] In one aspect, the polyester compositions are useful in LCD films or sheets including, but not limited to, solvent cast, extruded, compression molded, and/or calendered films or sheets that are optionally oriented.
[00296] In one aspect, the polyester compositions useful in the invention may be used in various types of film and/or sheet, including but not limited to extruded fιlm(s) and/or sheet(s), calendered film(s) and/or sheet(s), compression molded film(s) and/or sheet(s), solution casted film(s) and/or sheet(s). Methods of making film and/or sheet include but are not limited to extrusion, calendering, compression molding, and solution casting.
[00297] Also, in one aspect, use of these particular polyester compositions minimizes and/or eliminates the drying step prior to melt processing and/or thermoforming.
[00298] In one aspect, certain polyesters useful in the invention can be amorphous or semicrystalline. In one aspect, certain polyesters useful in the invention can have a relatively low crystallinity. Certain polyesters useful in the invention can thus have a substantially amorphous morphology, meaning that the polyesters comprise substantially unordered regions of polymer. BRIEF DESCRIPTION OF THE DRAWINGS
[00299] Figures 1-3 were present in the priority application of United States
Application 11/390864 for this application.
[00300] Figure 4 is a perspective view of a backlight display device.
[00301] Figure 5 is a cross-sectional view of prismatic surfaces of the first optical substrate.
[00302] Figure 6 is a perspective view of a backlight display device comprising a stack of optical substrates.
[00303] Figure 7 is a perspective view of two optical substrates, feature the orientation of the prismatic surfaces.
[00304] Figure 8 is a cross-sectional view of an optical substrate containing light diffusing particles.
DETAILED DESCRIPTION OF THE INVENTION
[00305] The present invention may be understood more readily by reference to the following detailed description of certain embodiments of the invention and the working examples. In accordance with the purpose(s) of this invention, certain embodiments of the invention are described in the Summary of the Invention and are further described herein below. Also, other embodiments of the invention are described herein.
[00306] It is believed that polyesters and/or polyester composition(s) comprised in the LCD films or sheets of the invention can have a unique combination of two or more physical properties such as moderate or high impact strengths, high glass transition temperatures, chemical resistance, hydro lytic stability, toughness, low ductile-to-brittle transition temperatures, good color and clarity, low densities, and long crystallization half-times, and good processability thereby easily permitting them to be formed into articles. In some of the embodiments of the invention, the polyesters have a unique combination of the properties of good impact strength, heat resistance, chemical resistance, density and/or the combination of the properties of good impact strength, heat resistance, and processability and/or the combination of two or more of the described properties, that have never before been believed to be present in LCD films or sheets comprising the polyester compositions useful in the invention which comprise the polyester(s) as disclosed herein.
[00307] "LCD film or sheet," as used herein, refers to an optical film or sheet in an LCD assembly, capable of retarding, compensating, directing, diffusing, enhancing and/or polarizing tight and/or as a support or protective layer for polarizing films. Thus, in certain embodiments, the LCD film or sheet can be chosen from a d iff user film, a diffuser sheet, a compensation film, a component in a brightness enhancing film, a retardation film, and a polarizer protection film. In one embodiment, the LCD assembly comprises a backlight that generates light that is directed to a series of layers and/or films, which further direct, diffuse, and/or transmit the light to adjacent layers within an LCD. [00308] In one embodiment, the LCD assembly comprises at least one diffuser film or sheet to produce a substantially uniformly diffused light to the first polarizer within an LCD assembly. In another embodiment, the diffuser film achieves a substantially homogenous light and/or enhances brightness. In one embodiment, the diffuser film comprises the polyester. In one embodiment, the diffuser is a sheet, which can have a thickness ranging from 1 to 50 mm with a thickness variation of ±10% over an area of 1 m2, such as a thickness ranging from 2 to 30 mm. In another embodiment, the diffuser is a film, which can have a thickness ranging from 2 to 30 mils, with a thickness variation of ±10% over an area of 1 m2. These films can be used in combination with other films of differing refractive index to produce a reflective multilayer film, i.e., a dielectric mirror. [00309] In one embodiment, the light diffusing substrate has surface roughness. In one embodiment, the center line average roughness Ra can be 0.1 μm or less, a ten-point average roughness Rz can be 1 μm or less, and a maximum height surface roughness Rmax can be 1 μm or less. In another embodiment, the surface roughness can have a ten-point average roughness Rz of 0.5 μm or less, and a maximum height surface roughness of Rmax of 0.5 μm or less. In another embodiment, the surface roughness can have a ten-point average roughness Rz of 0.3 μm or less. [00310] In another embodiment, the LCD assembly comprises a compensation film, which compensates for light transmitting through anisotropic crystal pathways. Accordingly, in one embodiment, the compensation film comprises the polyester. In another embodiment, the LCD comprises a brightness enhancing film. Accordingly, in one embodiment, the brightness enhancing film comprises the polyester. In one embodiment, the LCD comprises a protective layer for the polyvinyl alcohol polarizer. Accordingly, in one embodiment, the protective layer comprises the polyester.
[00311] In one embodiment, the diffuser film has at least one property chosen from toughness, clarity, chemical resistance, Tg, and hydrolytic stability. In one embodiment, the compensation film has at least one property chosen from toughness, clarity, chemical resistance, Tg, thermal stability, hydrolytic stability, and optical properties.
[00312] Figure 4 is a perspective view of backlight display device 100. Backlight display device 100 comprises an optical source 102 for generating light 116, and a first optical substrate 108 for receiving light 116. First optical substrate 108 is positioned adjacent to optical source 102 and above light guide 104, which directs light 116 emanating from optical source 102. First optical substrate 108 comprises, on one side thereof, a planar surface 110 and on a second, opposing side thereof, a prismatic surface 112 (Figure 5), such as 3M's prism film VIKUITI BEF (brightness enhancing film). Reflective device 106 is shown in planar form facing the planar surface 110 of the first optical substrate 108 such that light guide 104 is sandwiched between the reflective device 106 and the first optical substrate 108. A second optical substrate 114 faces the prismatic surface of the first optical substrate 108.
[00313] In operation, optical source 102 generates light 116 that is directed by light guide 104 by total internal reflection along reflective device 106. Reflective device 106 reflects the light 116 out of light guide 104 where it is received by first optical substrate 108. Planar surface 110 and prismatic surface 112 of first optical substrate 108 acts to redirect light 116 in a direction that is substantially normal to first optical substrate 108 (along direction z as shown). Light 116 is then directed to a second optical substrate 114 located above the first optical substrate 108, where second optical substrate 114 acts to diffuse light 116 (diffuser film or sheet). Light 116 proceeds from the second optical substrate 114 to the polarizer and the liquid crystal array 130 (shown in Figure 6). [00314] Figure 5 is a cross-sectional view of the first optical substrate 108, showing the prismatic surface 112 and opposing planar surface 110. It will be appreciated that the second optical substrate 114 may also include the aforesaid planar and prismatic surfaces 110 and 112. Alternatively, optical substrates 108 and 114 may comprise opposing planar surfaces 110 or opposing prismatic surfaces 112. The opposing surfaces may also include a matte finish, for example a surface replicated from a sand blasted, laser machined, milled or electric discharged machine master as well as the planar and prismatic surfaces. Figure 5 also depicts the prismatic surface 112 of optical substrate 108 having a peak angle, [α], a height, h, a pitch, p, and a length, I (Figure 7), any of which may have prescribed values or may have values which are randomized or at least pseudo-randomized. The second optical substrate 114 may be a sheet material. Also shown in Figure 5 are some possible pathways of light 116 in relation to the optical substrate 108.
[00315] Figure 6 shows a perspective view of another embodiment of the backlight display device 100 including a plurality of optical substrates 108 and 114 arranged in a stack having edges that are substantially aligned with respect to each other. The stack is positioned parallel to planar LCD device 130. [00316] Figure 7 shows another arrangement of two optical substrates 108, where prismatic surfaces 112 are oriented such that the direction of respective prismatic surfaces 112 is positioned at an angle with respect to one another, e.g., 90 degrees. It is understood that more than two optical substrates 108 can be used where the respective prismatic surfaces can be aligned as desired. [00317] Light scattering or diffusion of light can occur as light passes through a transparent or opaque material. The amount of scattering/diffusion is often quantified as % haze. Haze can be inherent in the material, a result of a formation or molding process, or a result of surface texture (e.g., prismatic surfaces). Figure 8 is a cross-sectional view of second optical substrate 114 containing light diffusing particles 128 (diffuser sheet). Light 116 that passes th rough optical substrate 114 can be emanated in directions different than the initial direction. Light scattering particles 128 can have a dimension of 0.01 to 100 micrometers, such as 0.1 to 50 micrometers, and 1 to 5 micrometers. By addition of light scattering agents or light scattering particles 128 to an optical substrate, the amount of diffuse light emanating from the d iff user may be improved, and further improvements may be realized when a sufficient amount of a brightness enhancing agent is added, which is an embodiment of the current invention. Light diffusing particles 128 may be round or irregular in shape, and have a refractive index different, typically a lower refractive index by about 0.1 , from that of the second optical substrate 114. Typical refractive indices of the light diffusing particles 128 range from 1.4 to 1.6. Typical refractive indices of second optical substrate 114 can range from 1.47 to 1.65. Light diffusing particles 128 may be randomly, or at least pseudo-randomly, distributed or oriented in the optical substrate 114, or may be aligned in some deterministic fashion.
[00318] Suitable light diffusing particles may comprise organic or inorganic materials, or mixtures thereof, and do not significantly adversely affect the physical properties desired in the polyester, for example impact strength or tensile strength. Examples of suitable light diffusing organic materials include poly (aery lates); poly (a Iky I methacrylates), for example poly(methyl methacrylate) (PMMA); poly (tetrafluoroethylene) (PTFE); silicones, for example hydrolyzed poly(alkyl trialkoxysilanes) available under the trade name TOSPEARL(R) from GE Silicones; and mixtures comprising at least one of the foregoing organic materials, wherein the alkyl groups have from one to about twelve carbon atoms. Other light diffusing particles, or light scattering agent, include but are not limited to polyalkyl silsesquioxane or a mixture thereof, wherein the alkyl groups can be methyl, C2-Ciβ alkyl, hydride, phenyl, vinyl, or cyclohexyl, e.g., polymethyl silsesquioxane. Examples of suitable light diffusing inorganic materials include materials comprising antimony, titanium, barium, and zinc, for example the oxides or sulfides of the foregoing such as zinc oxide, antimony oxide and mixtures comprising at least one of the foregoing inorganic materials. Light diffusing particles typically have a diameter of about 2 micron and a refractive index below that of the matrix. Typically the light diffusing particles can have a refractive index about 0.1 less than that of the matrix.
[00319] In one embodiment, it is believed that when at least one thermal stabilizer comprising at least one phosphorus compound described herein are used during the processes of making the polyesters according to the present invention, the polyesters can be more easily produced without at least one of the following occurring: bubbling, splay formation, color formation, foaming, off- gassing, and erratic melt levels, i.e., pulsating of the polyester or the polyester1 s production and processing systems. In another embodiment, it is believed that at least one process of the invention provides a means to more easily produce the polyesters useful in the invention in large quantities (for example, pilot run scale and/or commercial production) without at least one of the aforesaid difficulties occurring.
[00320] The term "large quantities" as used herein includes quantities of polyester(s) useful in the invention which are produced in quantities larger than 100 pounds. In one embodiment, the term "large quantities, as used herein, includes quantities of polyester(s) useful in the invention which are produced in quantities larger than 1000 pounds.
[00321] In one embodiment, the processes of making the polyesters useful in the invention can comprise a batch or continuous process. [00322] In one embodiment, the processes of making the polyesters useful in the invention comprise a continuous process.
[00323] When tin is added to the polyesters and/or polyester compositions and/or process of making the polyesters of the invention, it is added to the process of making the polyester in the form of a tin compound. The amount of the tin compound added to the polyesters of the invention and/or polyester compositions of the invention and/or processes of the invention can be measured in the form of tin atoms present in the final polyester, for example, by weight measured in ppm.
[00324] When phosphorus is added to the polyesters and/or polyester compositions and/or process of making the polyesters of the invention, it is added to the process of making the polyester in the form of a phosphorus compound. In one embodiment, this phosphorus compound can comprise at least one phosphate ester(s). The amount of phosphorus compound, [for example, phosphate ester(s)] added to the polyesters of the invention and/or polyester compositions of the invention and/or processes of the invention can be measured in the form of phosphorus atoms present in the final polyester, for example, by weight measured in ppm.
[00325] The term "polyester", as used herein, is intended to include "copolyesters" and is understood to mean a synthetic polymer prepared by the reaction of one or more difunctional carboxylic acids and/or multifunctional carboxylic acids with one or more difunctional hydroxyl compounds and/or multifunctional hydroxyl compounds, for example, branching agents. Typically the difunctional carboxylic acid can be a dicarboxylic acid and the difunctional hydroxyl compound can be a dihydric alcohol such as, for example, glycols and diols. The term "glycol" as used herein includes, but is not limited to, diols, glycols, and/or multifunctional hydroxyl compounds, for example, branching agents. Alternatively, the difunctional carboxylic acid may be a hydroxy carboxylic acid such as, for example, p-hydroxybenzoic acid, and the difunctional hydroxyl compound may be an aromatic nucleus bearing 2 hydroxyl substituents such as, for example, hydroquinone. The term "residue", as used herein, means any organic structure incorporated into a polymer through a polycondensation and/or an esterification reaction from the corresponding monomer. The term "repeating unit", as used herein, means an organic structure having a dicarboxylic acid residue and a diol residue bonded through a carbonyloxy group. Thus, for example, the dicarboxylic acid residues may be derived from a dicarboxylic acid monomer or its associated acid halides, esters, salts, anhydrides, and/or mixtures thereof. Furthermore, as used herein, the term "diacid" includes multifunctional acids, for example, branching agents. As used herein, therefore, the term "dicarboxylic acid" is intended to include dicarboxylic acids and any derivative of a dicarboxylic acid, including its associated acid halides, esters, half-esters, salts, half-salts, anhydrides, mixed anhydrides, and/or mixtures thereof, useful in a reaction process with a diol to make polyester. [00326] As used herein, the term "terephthalic acid" is intended to include terephthalic acid itself and residues thereof as well as any derivative of terephthalic acid, including its associated acid halides, esters, half-esters, salts, half-salts, anhydrides, mixed anhydrides, and/or mixtures thereof or residues thereof useful in a reaction process with a diol to make polyester. [00327] The polyesters used in the present invention typically can be prepared from dicarboxylic acids and diols which react in substantially equal proportions and are incorporated into the polyester polymer as their corresponding residues. The polyesters of the present invention, therefore, can contain substantially equal molar proportions of acid residues (100 mole%) and diol (and/or multifunctional hydroxy I compound) residues (100 mole%) such that the total moles of repeating units is equal to 100 mole%. The mole percentages provided in the present disclosure, therefore, may be based on the total moles of acid residues, the total moles of diol residues, or the total moles of repeating units. For example, a polyester containing 30 mole% isophthalic acid, based on the total acid residues, means the polyester contains 30 mole% isophthalic acid residues out of a total of 100 mole% acid residues. Thus, there are 30 moles of isophthalic acid residues among every 100 moles of acid residues. In another example, a polyester containing 30 mole% 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol, based on the total diol residues, means the polyester contains 30 mole% 2,2,4,4-tetramethyM ,3- cyclobutanediol residues out of a total of 100 mole% diol residues. Thus, there are 30 moles of 2,2,4,4-tetramethyl-1 ,3-cyclobutanedio! residues among every 100 moles of diol residues.
[00328] In other aspects of the invention, the Tg of the polyesters useful in theLCD films or sheets of the invention can be at least one of the following ranges: 60 to 2000C; 60 to 1900C; 60 to 180°C; 60 to 1700C; 60 to 1600C; 60 to 155°C; 60 to 1500C; 60 to 145°C; 60 to 1400C; 60 to 138°C; 60 to 135°C; 60 to 130°C; 60 to 125°C; 60 to 1200C; 60 to 115°C; 60 to 1100C; 60 to 1050C; 60 to 100°C; 60 to 95°C; 60 to 90°C; 60 to 85°C; 60 to 80°C; 60 to 75°C; 65 to 200°C; 65 to 1900C; 65 to 180°C; 65 to 1700C; 65 to 1600C; 65 to 155°C; 65 to 1500C; 65 to 145°C; 65 to 1400C; 65 to 138°C; 65 to 135°C; 65 to 130°C; 65 to 125°C; 65 to 1200C; 65 to 115°C; 65 to 1100C; 65 to 105°C; 65 to 100°C; 65 to 95°C; 65 to 900C; 65 to 85°C; 65 to 800C; 65 to 75°C; 70 to 2000C; 70 to 1900C; 70 to 1800C; 70 to 170°C; 70 to 1600C; 70 to 155°C; 70 to 1500C; 70 to 145°C; 70 to 1400C; 70 to 138°C; 70 to 135°C; 70 to 130°C; 70 to 125°C; 70 to 120°C; 70 to 115°C; 70 to 110°C; 70 to 1050C; 70 to 100°C; 70 to 95°C; 70 to 90°C; 70 to 85°C; 70 to 80°C; 70 to 75°C; 75 to 2000C; 75 to 1900C; 75 to 1800C; 75 to 170°C; 75 to 1600C; 75 to 155°C; 75 to 150°C; 75 to 145°C; 75 to 1400C; 75 to 138°C; 75 to 135°C; 75 to 130°C; 75 to 125°C; 75 to 1200C; 75 to 115°C; 75 to 1100C; 75 to 1050C; 75 to 1000C; 75 to 95°C; 75 to 900C; 75 to 85°C; 75 to 800C; 80 to 2000C; 80 to 1900C; 80 to 1800C; 80 to 170°C; 80 to 1600C; 80 to 155°C; 80 to 150°C; 80 to 145°C; 80 to 1400C; 80 to 138°C; 80 to 135°C; 80 to 130°C; 80 to 125°C; 80 to 1200C; 80 to 115°C; 80 to 1100C; 80 to 1050C; 80 to 1000C; 80 to 95°C; 80 to 900C; 80 to 85°C; 85 to 2000C; 85 to 190°C; 85 to 180°C; 85 to 1700C; 85 to 160°C; 85 to 155°C; 85 to 1500C; 85 to 145°C; 85 to 1400C; 85 to 138°C; 85 to 135°C; 85 to 130°C; 85 to 125°C; 85 to 1200C; 85 to 115°C; 85 to 110°C; 85 to 105°C; 85 to 100°C; 85 to 95°C; 85 to 90°C; 90 to 2000C; 90 to 1900C; 90 to 180°C; 90 to 170°C; 90 to 1600C; 90 to 155°C; 90 to 1500C; 90 to 145°C; 90 to 1400C; 90 to 138°C; 90 to 135°C; 90 to 130°C; 90 to 125°C; 90 to 120°C; 90 to 115°C; 90 to 1100C; 90 to 105°C; 90 to 1000C; 90 to 95°C; 95 to 200°C; 95 to 190°C; 95 to 180°C; 95 to 1700C; 95 to 160°C; 95 to 155°C; 95 to 150°C; 95 to 145°C; 95 to 1400C; 95 to 138°C; 95 to 135°C; 95 to 130°C; 95 to 125°C; 95 to 120°C; 95 to 115°C; 95 to 110°C; 95 to 1050C; 95 to 100°C; 100 to 200°C; 100 to 190°C; 100 to 180°C; 100 to 170°C; 100 to 160°C; 100 to 155°C; 100 to 150°C; 100 to 145°C; 100 to 1400C; 100 to 138°C; 100 to 135°C; 100 to 1300C; 100 to 125°C; 100 to 120°C; 100 to 115°C; 100 to 1100C; 105 to 2000C; 105 to 1900C; 105 to 1800C; 105 to 170°C; 105 to 160°C; 105 to 155°C; 105 to 1500C; 105 to 145°C; 105 to 140°C; 105 to 138°C; 105 to 135°C; 105 to 1300C; 105 to 125°C; 105 to 1200C; 105 to 115°C; 105 to 1100C; 110 to 2000C; 110 to 190°C; 110 to 180°C; 110 to 1700C; 110 to 160°C; 110 to 155°C; 110 to 150°C; 110 to 145°C; 110 to 140°C; 110 to 138°C; 110 to 135°C; 110 to 1300C; 110 to 125°C; 110 to 1200C; 110 to 115°C; 115 to 200°C; 115 to 1900C; 115 to 1800C; 115 to 170°C; 115 to 160°C; 115 to 155°C; 115 to 150°C; 115 to 145°C; 115 to 140°C; 115 to 138°C; 115 to 135°C; 110 to 1300C; 115 to 125°C; 115 to 120°C; 120 to 2000C; 120 to 1900C; 120 to 180°C; 120 to 170°C; 120 to 1600C; 120 to 155°C; 120 to 1500C; 120 to 145°C; 120 to 140°C; 120 to 138°C; 120 to 135°C; 120 to 130°C; 125 to 200°C; 125 to 1900C; 125 to 180°C; 125 to 1700C; 125 to 165°C; 125 to 1600C; 125 to 155°C; 125 to 150°C; 125 to 145°C; 125 to 1400C; 125 to 138°C; 125 to 135°C; 127 to 2000C; 127 to 1900C; 127 to 1800C; 127 to 170°C; 127 to 1600C; 127 to 1500C; 127 to 145°C; 127 to 1400C; 127 to 138°C; 127 to 135°C; 130 to 2000C; 130 to 190°C; 130 to 1800C; 130 to 170°C; 130 to 1600C; 130 to 155°C; 130 to 150°C; 130 to 145°C; 130 to 1400C; 130 to 138°C; 130 to 135°C; 135 to 2000C; 135 to 190°C; 135 to 180°C; 135 to 170°C; 135 to 1600C; 135 to 155°C; 135 to 150°C; 135 to 145°C; 135 to 1400C; 140 to 2000C; 140 to 190°C; 140 to 1800C; 140 to 1700C; 140 to 1600C; 140 to 155°C; 140 to 1500C; 140 to 145°C; 148 to 200°C; 148 to 1900C; 148 to 1800C; 148 to 170°C; 148 to 160°C; 148 to 155°C; 148 to 150°C; greater than 148 to 2000C; greater than 148 to 1900C; greater than 148 to 1800C; greater than 148 to 170°C; greater than 148 to 16O0C; greater than 148 to 1550C; 150 to 2000C; 150 to 1900C; 150 to 1800C; 150 to 1700C; 150 to 160; 155 to 1900C; 155 to 180°C; 155 to 170°C; 155 to 165°C; 105 to 112°C; 114 to 1200C; and 108 to 116°C. [00329] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 1 to 99 mole % 2,2,4,4-tetramethyl-i ,3- cyclobutanediol and 1 to 99 mole % cyclohexanedimethanol; 1 to 95 mole % 2,2,4.4-tetramethyl-i ,3-cyclobutanediol and 5 to 99 mole % cyclohexanedimethanol; 1 to 90 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 10 to 99 mole % cyclohexanedimethanol; 1 to 85 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 15 to 99 mole % cyclohexanedimethanol; 1 to 80 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 20 to 99 mole % cyclohexanedimethanol, 1 to 75 mole % 2,2,4,4-tetramethyM, 3-cyclobutanediol and 25 to 99 mole % cyclohexanedimethanol; 1 to 70 mole % 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol and 30 to 99 mole % cyclohexanedimethanol; 1 to 65 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 35 to 99 mole % cyclohexanedimethanol; 1 to 60 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 40 to 99 mole % cyclohexanedimethanol; 1 to 55 mole % 2,2,4,4- tetramethyl-1,3-cyclobutanediol and 45 to 99 mole % cyclohexanedimethanol; 1 to 50 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 50 to 99 mole % cyclohexanedimethanol; 1 to 45 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 55 to 99 mole % cyclohexanedimethanol; 1 to 40 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 60 to 99 mole % cyclohexanedimethanol; 1 to 35 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and 65 to 99 mole % cyclohexanedimethanol; 1 to 30 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 70 to 99 mole % cyclohexanedimethanol; 1 to 25 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 75 to 99 mole % cyclohexanedimethanol; 1 to 20 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 80 to 99 mole % cyclohexanedimethanol; 1 to 15 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 85 to 99 mole % cyclohexanedimethanol; 1 to 10 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 90 to 99 mole % cyclohexanedimethanol; and 1 to 5 mole % 2,2,4,4-tetramethyM, 3-cyclobutanediol and 95 to 99 mole % cyclohexanedimethanol.
[00330] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 3 to 10 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 90 to 97 mole % cyclohexanedimethanol; 3 to 9 mole % 2,2,4,4-tetramethyM, 3-cyclobutanediol and 91 to 97 mole % cyclohexanedimethanol; and 3 to 8 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 92 to 97 mole % cyclohexanedimethanol. [00331] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 5 to 99 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 1 to 95 mole % cyclohexanedimethanol; 5 to 95 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 5 to 95 mole % cyclohexanedimethanol; 5 to 90 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 10 to 95 mole % cyclohexanedimethanol; 5 to 85 mole % 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol and 15 to 95 mole % cyclohexanedimethanol; 5 to 80 mole % 2,2,4,4-tetramethyM , 3-cyclobutanediol and 20 to 95 mole % cyclohexanedimethanol, 5 to 75 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 25 to 95 mole % cyclohexanedimethanol; 5 to 70 mole % 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol and 30 to 95 mole % cyclohexanedimethanol; 5 to 65 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 35 to 95 mole % cyclohexanedimethanol; 5 to 60 mole % 2, 2,4,4-tetramethyM ,3-cyclobutanediol and 40 to 95 mole % cyclohexanedimethanol; 5 to 55 mole % 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol and 45 to 95 mole % cyclohexanedimethanol; and 5 to 50 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and 50 to 95 mole % cyclohexanedimethanol.
[00332] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 5 to less than 50 mole % 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol and greater than 50 to 95 mole % cyclohexanedimethanol; 5 to 45 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanedioI and 55 to 95 mole % cyclohexanedimethanol; 5 to 40 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 60 to 95 mole % cyclohexanedimethanol; 5 to 35 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 65 to 95 mole % cyclohexanedimethanol; 5 to less than 35 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol and greater than 65 to 95 mole % cyclohexanedimethanol; 5 to 30 mole % 2,2,4 ,4-tetramethyl- 1 ,3-cyclobutanediol and 70 to 95 mole % cyclohexanedimethanol; 5 to 25 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 75 to 95 mole % cyclohexanedimethanol; 5 to 20 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 80 to 95 mole % cyclohexanedimethanol ; 5 to 15 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 85 to 95 mole % cyclohexanedimethanol; 5 to 10 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and 90 to 95 mole % cyclohexanedimethanol; greater than 5 to less than 10 mole % 2, 2,4,4- tetramethyM ,3-cyclobutanediol and less than 90 to greater than 95 mole % cyclohexanedimethanol; 5.5 mole % to 9.5 mole % 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol and 94.5 mole % to 90.5 mole % cyclohexanedimethanol; and 6 to 9 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 94 to 91 mole % cyclohexanedimethanol.
[00333] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 10 to 99 mole % 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol and 1 to 90 mole % cyclohexanedimethanol; 10 to 95 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 5 to 90 mole % cyclohexanedimethanol; 10 to 90 mole % 2l2,4,4-tetramethyl-1 ,3-cyclobutanediol and 10 to 90 mole % cyclohexanedimethanol; 10 to 85 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 15 to 90 mole % cyclohexanedimethanol; 10 to 80 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 20 to 90 mole % cyclohexanedimethanol; 10 to 75 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 25 to 90 mole % cyclohexanedimethanol; 10 to 70 mole % 2,2,4,4- tetramethyl-1,3-cyclobutanediol and 30 to 90 mole % cyclohexanedimethanol; 10 to 65 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 35 to 90 mole % cyclohexanedimethanol; 10 to 60 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and 40 to 90 mole % cyclohexanedimethanol; 10 to 55 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 45 to 90 mole % cyclohexanedimethanol; 10 to 50 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 50 to 90 mole % cyclohexanedimethanol; 10 to less than 50 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and greater than 50 to 90 mole % cyclohexanedimethanol; 10 to 45 mole % 2 ,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and 55 to 90 mole % cyclohexanedimethanol; 10 to 40 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 60 to 90 mole % cyclohexanedimethanol; 10 to 35 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 65 to 90 mole % cyclohexanedimethanol; 10 to less than 35 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and greater than 65 to 90 % cyclohexanedimethanol; 10 to 30 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 70 to 90 mole % cyclohexanedimethanol; 10 to 25 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 75 to 90 mole % cyclohexanedimethanol; 10 to 20 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 80 to 90 mole % cyclohexanedimethanol; and 10 to 15 mole % 2,2,4,4- tetramethyl-1,3-cyclobutanediol and 85 to 90 mole % cyclohexanedimethanol. [00334] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 10 to 100 mole % 2,2,4,4-tetramethyM, 3- cyclobutanediol and 0 to 90 mole % cyclohexanedimethanol; greater than 10 to 99 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 1 to less than 90 mole % cyclohexanedimethanol; greater than 10 to 95 mole % 2,2,4,4-tetramethyl-1,3- cyclobutanediol and 5 to less than 90 mole % cyclohexanedimethanol; greater than 10 to 90 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 10 to less than 90 mole % cyclohexanedimethanol; greater than 10 to 85 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 15 to less than 90 mole % cyclohexanedimethanol; greater than 10 to 80 mole % 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol and 20 to less than 90 mole % cyclohexanedimethanol; greater than 10 to 75 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 25 to less than 90 mole % cyclohexanedimethanol; greater than 10 to 70 mole % 2,2,4,4- tetramethyl-1,3-cyclobutanediol and 30 to less than 90 mole % cyclohexanedimethanol; greater than 10 to 65 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 35 to less than 90 mole % cyclohexanedimethanol; greater than 10 to 60 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 40 to less than 90 mole % cyclohexanedimethanol; greater than 10 to 55 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 45 to less than 90 mole % cyclohexanedimethanol; greater than 10 to 50 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 50 to less than 90 mole % cyclohexanedimethanol; greater than 10 to less than 50 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and greater than 50 to less than 90 mole % cyclohexanedimethanol; greater than 10 to 45 mole % 2,2,4,4-tetramethyM, 3-cyclobutanediol and 55 to less than 90 mole % cyclohexanedimethanol; greater than 10 to 40 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 60 to less than 90 mole % cyclohexanedimethanol; greater than 10 to 35 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 65 to less than 90 mole % cyclohexanedimethanol; 10 to less than 34 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and greater than 66 to 90 % cyclohexanedimethanol; greater than 10 to 30 mole % 2,2,4,4-tetramethyM, 3- cyclobutanediol and 70 to less than 90 mole % cyclohexanedimethanol; greater than 10 to 25 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 75 to less than 90 mole % cyclohexanedimethanol; greater than 10 to 20 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 80 to less than 90 mole % cyclohexanedimethanol; and greater than 10 to 15 mole % 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol and 85 to less than 90 mole % cyclohexanedimethanol. [00335] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 11 to 99 mole % 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol and 1 to 89 mole % cyclohexanedimethanol; 11 to 95 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 5 to 89 mole % cyclohexanedimethanol; 11 to 90 mole % 2,2)4,4-tetramethyl-1 ,3-cyclobutanediol and 10 to 89 mole % cyclohexanedimethanol; 1 1 to 85 mole % 2,2,4,4- tetramethyl-1,3-cyclobutanediol and 15 to 89 mole % cyclohexanedimethanol; 11 to 80 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 20 to 89 mole % cyclohexanedimethanol; 1 1 to 75 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 25 to 89 mole % cyclohexanedimethanol; 1 1 to 70 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 30 to 89 mole % cyclohexanedimethanol; 11 to 65 mole % 2,2,4l4-tetramethyl-1 ,3-cyclobutanediol and 35 to 89 mole % cyclohexanedimethanol; 1 1 to 60 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and 40 to 89 mole % cyclohexanedimethanol; 1 1 to 55 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 45 to 89 mole % cyclohexanedimethanol; 11 to 50 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 50 to 89 mole % cyclohexanedimethanol; 11 to less than 50 mole % 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol and greater than 50 to 89 mole % cyclohexanedimethanol; 11 to 45 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 55 to 89 mole % cyclohexanedimethanol; 11 to 40 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 60 to 89 mole % cyclohexanedimethanol; 1 1 to 35 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 65 to 89 mole % cyclohexanedimethanol; 11 to 30 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 70 to 89 mole % cyclohexanedimethanol; 1 1 to 24 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 76 to 89 mole % cyclohexanedimethanol; and 11 to 25 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 75 to 89 mole % cyclohexanedimethanol. [00336] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 12 to 99 mole % 2,2,4,4-tetramethyl-i ,3- cyclobutanediol and 1 to 88 mole % cyclohexanedimethanol; 12 to 95 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 5 to 88 mole % cyclohexanedimethanol; 12 to 90 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 10 to 88 mole % cyclohexanedimethanol; 12 to 85 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 15 to 88 mole % cyclohexanedimethanol; 12 to 80 mole % 2,2,4 ,4-tetramethyM ,3-cyclobutanediol and 20 to 88 mole % cyclohexanedimethanol; 12 to 75 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and 25 to 88 mole % cyclohexanedimethanol; 12 to 70 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 30 to 88 mole % cyclohexanedimethanol; 12 to 65 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 35 to 88 mole % cyclohexanedimethanol; 12 to 60 mole % 2,2,4,4-tetramethyM, 3-cyclobutanediol and 40 to 88 mole % cyclohexanedimethanol; 12 to 55 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 45 to 88 mole % cyclohexanedimethanol; 12 to 50 mole % 2,2,4 ,4-tetramethyM, 3-cyclobutanediol and 50 to 88 mole % cyclohexanedimethanol; 12 to less than 50 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and greater than 50 to 88 mole % cyclohexanedimethanol; 12 to 45 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 55 to 88 mole % cyclohexanedimethanol; 12 to 40 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 60 to 88 mole % cyclohexanedimethanol; 12 to 35 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 65 to 88 mole % cyclohexanedimethanol; 12 to 30 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 70 to 88 mole % cyclohexanedimethanol; 12 to 24 mole % 2,2,4,4-tetramethyM, 3-cyclobutanediol and 76 to 88 mole % cyclohexanedimethanol; and 12 to 25 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 75 to 88 mole % cyclohexanedimethanol. [00337] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 13 to 99 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 1 to 87 mole % cyclohexanedimethanol; 13 to 95 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 5 to 87 mole % cyclohexanedimethanol; 13 to 90 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 10 to 87 mole % cyclohexanedimethanol; 13 to 85 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 15 to 87 mole % cyclohexanedimethanol; 13 to 80 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutaπediol and 20 to 87 mole % cyclohexanedimethanol; 13 to 75 mole % 2,2,4,4-tetramethyl-1,3-cyc!obutanediol and 25 to 87 mole % cyclohexanedimethanol; 13 to 70 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 30 to 87 mole % cyclohexanedimethanol; 13 to 65 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 35 to 87 mole % cyclohexanedimethanol; 13 to 60 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and 40 to 87 mole % cyclohexanedimethanol; 13 to 55 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 45 to 87 mole % cyclohexanedimethanol; 13 to 50 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 50 to 87 mole % cyclohexanedimethanol; 13 to less than 50 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and greater than 50 to 87 mole % cyclohexanedimethanol; 13 to 45 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 55 to 87 mole % cyclohexanedimethanol; 13 to 40 mole % 2,2,4,4-tetramethyl-i ,3-cyclobutanediol and 60 to 87 mole % cyclohexanedimethanol; 13 to 35 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 65 to 87 mole % cyclohexanedimethanol; 13 to 30 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 70 to 87 mole % cyclohexanedimethanol; 13 to 24 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and 76 to 87 mole % cyclohexanedimethanol; and 13 to 25 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 75 to 87 mole % cyclohexanedimethanol. [00338] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 14 to 99 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 1 to 86 mole % cyclohexanedimethanol; 14 to 95 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 5 to 86 mole % cyclohexanedimethanol; 14 to 90 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 10 to 86 mole % cyclohexanedimethanol; 14 to 85 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 15 to 86 mole % cyclohexanedimethanol; 14 to βOmole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and 20 to 86 mole % cyclohexanedimethanol; 14 to 75 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 25 to 86 mole % cyclohexanedimethanol; 14 to 70 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 30 to 86 mole % cyclohexanedimethanol; 14 to 65 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and 35 to 86 mole % cyclohexanedimethanol; 14 to 60 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 40 to 86 mole % cyclohexanedimethanol; 14 to 55 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 45 to 86 mole % cyclohexanedimethanol; 14 to 50 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 50 to 86 mole % cyclohexanedimethanol; 14 to less than 50 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and greater than 50 to 86 mole % cyclohexanedimethanol; 14 to 45 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 55 to 86 mole % cyclohexanedimethanol; 14 to 40 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and 60 to 86 mole % cyclohexanedimethanol; 14 to 35 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 65 to 86 mole % cyclohexanedimethanol; 14 to 30 mole % 2l2,4,4-tetramethyl-1,3-cyclobutanediol and 70 to 86 mole % cyclohexanedimethanol; 14 to 24 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and 76 to 86 mole % cyclohexanedimethanol; and 14 to 25 mole % 2,2,4,4- tetramethyM , 3-cyclobutanediol and 75 to 86 mole % cyclohexanedimethanol. [00339] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 15 to 99 mole % 2, 2 ,4, 4-tetramethy 1-1 ,3- cyclobutanediol and 1 to 85 mole % cyclohexanedimethanol; 15 to 95 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 5 to 85 mole % cyclohexanedimethanol; 15 to 90 mole % 2,2,4,4-tetramethyM, 3-cyclobutanediol and 10 to 85 mole % cyclohexanedimethanol; 15 to 85 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 15 to 85 mole % cyclohexanedimethanol; 15 to 80 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 20 to 85 mole % cyclohexanedimethanol; 15 to 75 mole % 2,2,4,4-tetramethyM, 3-cyclobutanediol and 25 to 85 mole % cyclohexanedimethanol; 15 to 70 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 30 to 85 mole % cyclohexanedimethanol; 15 to 65 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 35 to 85 mole % cyclohexanedimethanol; 15 to 60 mole % 2,2,4,4-tetramethyM, 3-cyclobutanediol and 40 to 85 mole % cyclohexanedimethanol; 15 to 55 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 45 to 85 mole % cyclohexanedimethanol; 15 to 50 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 50 to 85 mole % cyclohexanedimethanol; 15 to less than 50 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and greater than 50 to 85 mole % cyclohexanedimethanol; 15 to 45 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 55 to 85 mole % cyclohexanedimethanol; 15 to 40 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 60 to 85 mole % cyclohexanedimethanol; 15 to 35 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 65 to 85 mole % cyclohexanedimethanol; 15 to 30 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 70 to 85 mole % cyclohexanedimethanol; 15 to 25 mole % 2,2,4,4-tetramethyM, 3-cyclobutanediol and 75 to 85 mole % cyclohexanedimethanol; and 15 to 24 mole % 2,2,4,4- tetramethyl-1, 3-cyclobutanediol and 76 to 85 mole % cyclohexanedimethanol. [00340] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 20 to 99 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 1 to 80 mole % cyclohexanedimethanol; 20 to 95 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 5 to 80 mole % cyclohexanedimethanol; 20 to 90 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 10 to 80 mole % cyclohexanedimethanol; 20 to 85 mole % 2,2,4.4- tetramethyl-1 ,3-cyclobutanediol and 15 to 80 mole % cyclohexanedimethanol; 20 to 80 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 20 to 80 mole % cyclohexanedimethanol; 20 to 75 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 25 to 80 mole % cyclohexanedimethanol; 20 to 70 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 30 to 80 mole % cyclohexanedimethanol; 20 to 65 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 35 to 80 mole % cyclohexanedimethanol; 20 to 60 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 40 to 80 mole % cyclohexanedimethanol; 20 to 55 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 45 to 80 mole % cyclohexanedimethanol; 20 to 50 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 50 to 80 mole % cyclohexanedimethanol; 20 to less than 50 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediof and greater than 50 to 80 mole % cyclohexanedimethanol; 20 to 45 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 55 to 80 mole % cyclohexanedimethanol; 20 to 40 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 60 to 80 mole % cyclohexanedimethanol; 20 to 35 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 65 to 80 mole % cyclohexanedimethanol; 20 to 30 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 70 to 80 mole % cyclohexanedimethanol; and 20 to 25 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 75 to 80 mole % cyclohexanedimethanol. [00341] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 25 to 99 mole % 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol and 1 to 75 mole % cyclohexanedimethanol; 25 to 95 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and 5 to 75 mole % cyclohexanedimethanol; 25 to 90 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 10 to 75 mole % cyclohexanedimethanol; 25 to 85 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 15 to 75 mole % cyclohexanedimethanol; 25 to 80 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 20 to 75 mole % cyclohexanedimethanol; 25 to 75 mole % 2,2,4,4-tetramethyl-i ,3-cyclobutanediol and 25 to 75 mole % cyclohexanedimethanol; 25 to 70 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 30 to 75 mole % cyclohexanedimethanol; 25 to 65 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 35 to 75 mole % cyclohexanedimethanol; 25 to 60 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 40 to 75 mole % cyclohexanedimethanol; 25 to 55 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 45 to 75 mole % cyclohexanedimethanol; 25 to 50 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 50 to 75 mole % cyclohexanedimethanol; 25 to less than 50 mole % 2,2,4,4-tetramethyl-i ,3- cyclobutanediol and greater than 50 to 75 mole % cyclohexanedimethanol; 25 to 45 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 55 to 75 mole % cyclohexanedimethanol; 25 to 40 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 60 to 75 mole % cyclohexanedimethanol; 25 to 35 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 65 to 75 mole % cyclohexanedimethanol; and 25 to 30 mole % 2,2,4,4-tetramethyM, 3-cyclobutanediol and 70 to 75 mole % cyclohexanedimethanol.
[00342] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 21 to 35 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 65 to 79 mole % cyclohexanedimethanol; 21 to 30 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 70 to 79 mole % cyclohexanedimethanol; 21 to 25 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 75 to 79 mole % cyclohexanedimethanol; 23 mole % 2,2,4,4-tetramethyM, 3- cyclobutanediol and 77 mole % cyclohexanedimethanol; 23 to 33 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 67 to 77 mole % cyclohexanedimethanol; 33 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 67 mole % cyclohexanedimethanol; and 31 to 35 mole % 2,2,4,4-tetramethyM, 3- cyclobutanediol and 65 to 69 mole % cyclohexanedimethanol. [00343] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 30 to 99 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 1 to 70 mole % cyclohexanedimethanol; 30 to 95 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 5 to 70 mole % cyclohexanedimethanol; 30 to 90 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 10 to 70 mole % cyclohexanedimethanol; 30 to 85 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 15 to 70 mole % cyclohexanedimethanol; 30 to 80 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 20 to 70 mole % cyclohexanedimethanol; 30 to 75 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 25 to 70 mole % cyclohexanedimethanol; 30 to 70 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 30 to 70 mole % cyclohexanedimethanol; 30 to 65 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 35 to 70 mole % cyclohexanedimethanol; 30 to 60 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 40 to 70 mole % cyclohexanedimethanol; 30 to 55 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 45 to 70 mole % cyclohexanedimethanol; 30 to 50 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 50 to 70 mole % cyclohexanedimethanol; 30 to less than 50 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and greater than 50 to 70 mole % cyclohexanedimethanol; 30 to 45 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 55 to 70 mole % cyclohexanedimethanol; 30 to 40 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 60 to 70 mole % cyclohexanedimethanol; 30 to 35 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 65 to 70 mole % cyclohexanedimethanot. [00344] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 35 to 99 mole % 2,2,4 ,4-tetramethyM ,3- cyclobutanediol and 1 to 65 mole % cyclohexanedimethanol; 35 to 95 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 5 to 65 mole % cyclohexanedimethanol; 35 to 90 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 10 to 65 mole % cyclohexanedimethanol; 35 to 85 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 15 to 65 mole % cyclohexanedimethanol; 35 to 80 mole % 2,2,4 ,4-tetramethyM ,3-cyclobutanediol and 20 to 65 mole % cyclohexanedimethanol; 35 to 75 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 25 to 65 mole % cyclohexanedimethanol; 35 to 70 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 30 to 65 mole % cyclohexanedimethanol; 35 to 65 mole % 2,2,4,4-tetramethyl-i ,3-cyclobutanediol and 35 to 65 mole % cyclohexanedimethanol; 35 to 60 mole % 2,2,4 ,4-tetramethyM, 3-cyclobutanediol and 40 to 65 mole % cyclohexanedimethanol; 35 to 55 mole % 2,2,4,4- tetramethyM, 3-cyclobutanediol and 45 to 65 mole % cyclohexanedimethanol; 35 to 50 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 50 to 65 mole % cyclohexanedimethanol; 35 to less than 50 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and greater than 50 to 65 mole % cyclohexanedimethanol; 35 to 45 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 55 to 65 mole % cyclohexanedimethanol; 35 to 40 mole % 2,2,4 ,4-tetramethyM, 3-cyclobutanediol and 60 to 65 mole % cyclohexanedimethanol.
[00345] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 40.1 to 100 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 1 to 59.9 mole % cyclohexanedimethanol 40 to 99 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 1 to 60 mole % cyclohexanedimethanol; 40 to 95 mole % 2,2,4 ,4-tetramethyM, 3-cyclobutanediol and 5 to 60 mole % cyclohexanedimethanol; 40 to 90 mole % 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol and 10 to 60 mole % cyclohexanedimethanol; 40 to 85 mole % 2,2,4,4-tetramethyM, 3-cyclobutanediol and 15 to 60 mole % cyclohexanedimethanol; 40 to 80 mole % 2,2,4,4-tetramethyM, 3-cyclobutanediol and 20 to 60 mole % cyclohexanedimethanol; 40 to 75 mole % 2,2,4,4- tetramethyl-1 ,3-cyctobutanediol and 25 to 60 mole % cyclohexanedimethanol; 40 to 70 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 30 to 60 mole % cyclohexanedimethanol; 40 to 65 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 35 to 60 mole % cyclohexanedimethanol; 40 to 60 mole % 2,2,4,4- tetramethyl-1,3-cyclobutanediol and 40 to 60 mole % cyclohexanedimethanol; 40 to 55 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 45 to 60 mole % cyclohexanedimethanol; 40 to less than 50 mole % 2,2,4,4-tetramethyl-1,3- cyclobutanediol and greater than 50 to 60 mole % cyclohexanedimethanol; 40 to 50 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 50 to 60 mole % cyclohexanedimethanol; and 40 to 45 mole % 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol and 55 to 60 mole % cyclohexanedimethanol. [00346] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 45 to 100 mole % 2,2,4,4-tetramethyl-1,3- cyclobutanediol and 0 to 55 mole % cyclohexanedimethanol; 45 to 99 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and 1 to 55 mole % cyclohexanedimethanol; 45 to 95 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 5 to 55 mole % cyclohexanedimethanol; 45 to 90 mole % 2,2,4 ,4-tetramethyl- 1,3-cyclobutanediol and 10 to 55 mole % cyclohexanedimethanol; 45 to 85 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 15 to 55 mole % cyclohexanedimethanol; 45 to 80 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and 20 to 55 mole % cyclohexanedimethanol; 45 to 75 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 25 to 55 mole % cyclohexanedimethanol; 45 to 70 mole % 2,2,4,4-tetramethyl-i ,3-cyclobutanediol and 30 to 55 mole % cyclohexanedimethanol; 45 to 65 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and 35 to 55 mole % cyclohexanedimethanol; 45 to 60 mole % 2,2,4,4- tetramethyl-1,3-cyclobutanediol and 40 to 55 mole % cyclohexanedimethanol; greater than 45 to 55 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 45 to less than 55 mole % cyclohexanedimethanol; 45 to 55 mole % 2,2,4,4- tetramethyl-1,3-cyclobutanediol and 45 to 55 mole % cyclohexanedimethanol; and 45 to 50 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 50 to 60 mole % cyclohexanedimethanol.
I00347] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: greater than 50 to 99 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 1 to less than 50 mole % cyclohexanedimethanol; greater than 50 to 95 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 5 to less than 50 mole % cyclohexanedimethanol; greater than 50 to 90 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and 10 to less than 50 mole % cyclohexanedimethanol; greater than 50 to 85 mole % 2,2,4,4- tetramethyl-1,3-cyclobutanediol and 15 to less than 50 mole % cyclohexanedimethanol; greater than 50 to 80 mole % 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol and 20 to less than 50 mole % cyclohexanedimethanol; greater than 50 to 75 mole % 2,2,4,4-tetramethyM , 3-cyclobutanediol and 25 to less than 50 mole % cyclohexanedimethanol; greater than 50 to 70 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 30 to less than 50 mole % cyclohexanedimethanol; greater than 50 to 65 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 35 to less than 50 mole % cyclohexanedimethanol; greater than 50 to 60 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 40 to less than 50 mole % cyclohexanedimethanol.
[00348] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: greater than 51 to 99 mole % 2,2,4,4- tetramethyM, 3-cyclobutanediol and 1 to less than 49 mole % cyclohexanedimethanol; greater than 51 to 95 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 5 to less than 49 mole % cyclohexanedimethanol; greater than 51 to 90 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 10 to less than 49 mole % cyclohexanedimethanol; greater than 51 to 85 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 15 to less than 49 mole % cyclohexanedimethanol; greater than 51 to 80 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 20 to less than 49 mole % cyclohexanedimethanol; greater than 51 to 75 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 25 to less than 49 mole % cyclohexanedimethanol; greater than 51 to 70 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 30 to less than 49 mole % cyclohexanedimethanol; greater than 51 to 65 mole % 2,2,4 ,4-tetramethyl-1 ,3- cyclobutanediol and 35 to less than 49 mole % cyclohexanedimethanol; greater than 51 to 60 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 40 to less than 49 mole % cyclohexanedimethanol.
[00349] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 55 to 99 mole % 2,2,4,4-tetramethyl-i ,3- cyclobutanediol and 1 to 45 mole % cyclohexanedimethanol; 55 to 95 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 5 to 45 mole % cyclohexanedimethanol; 55 to 90 mole % 2,2,4,4-tetramethyM, 3-cyclobutanediol and 10 to 45 mole % cyclohexanedimethanol; 55 to 85 mole % 2,2,4,4- tetramethyl-1, 3-cyclobutanediol and 15 to 45 mole % cyclohexanedimethanol; 55 to 80 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 20 to 45 mole % cyclohexanedimethanol; 55 to 75 mole % 2,2,4,4-tetramethyM, 3-cyclobutanediol and 25 to 45 mole % cyclohexanedimethanol; 55 to 70 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 30 to 45 mole % cyclohexanedimethanoi; 55 to 65 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 35 to 45 mole % cyclohexanedimethanol; and 55 to 60 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 40 to 45 mole % cyclohexanedimethanol. [00350] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 60 to 99 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 1 to 40 mole % cyclohexanedimethanol; 60 to 95 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 5 to 40 mole % cyclohexanedimethanol; 60 to 90 mole % 2,2,4,4-tetramethyM, 3-cyclobutanediol and 10 to 40 mole % cyclohexanedimethanol; 60 to 85 mole % 2,2,4,4- tetramethyM , 3-cyclobutanediol and 15 to 40 mole % cyclohexanedimethanol; 60 to 80 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 20 to 40 mole % cyclohexanedimethanol; 60 to 75 mole % 2,2,4,4-tetramethyM, 3-cyclobutanediol and 25 to 40 mote % cyclohexanedimethanol; and 60 to 70 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 30 to 40 mole % cyclohexanedimethanol. [00351] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 65 to 99 mole % 2,2,4,4-tetramethyl-i ,3- cyclobutanediol and 1 to 35 mole % cyclohexanedimethanol; 65 to 95 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 5 to 35 mole % cyclohexanedimethanol; 65 to 90 mole % 2,2,4,4-tetramethyl-1.3-cyclobutanediol and 10 to 35 mole % cyclohexanedimethanol; 65 to 85 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 15 to 35 mole % cyclohexanedimethanol; 65 to 80 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 20 to 35 mole % cyclohexanedimethanol; 65 to 75 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 25 to 35 mole % cyclohexanedimethanol; and 65 to 70 mole % 2,2,4,4- tetramethyl-1,3-cyclobutanediol and 30 to 35 mole % cyclohexanedimethanol. |00352J In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 70 to 99 mole % 2,2,4,4-tetramethyM, 3- cyclobutanediol and 1 to 30 mole % cyclohexanedimethanol; 70 to 95 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 5 to 30 mole % cyclohexanedimethanol; 70 to 90 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 10 to 30 mole % cyclohexanedimethanol; 70 to 85 mole % 2,2,4,4- tetramethyl-1,3-cyclobutanediol and 15 to 30 mole % cyclohexanedimethanol; 70 to 80 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 20 to 30 mole % cyclohexanedimethanol; 70 to 75 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 25 to 30 mole % cyclohexanedimethanol.
[00353] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 75 to 99 mole % 2,2,4,4-tetramethyM, 3- cyclobutanediol and 1 to 25 mole % cyclohexanedimethanol; 75 to 95 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 5 to 25 mole % cyclohexanedimethanol; 75 to 90 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 10 to 25 mole % cyclohexanedimethanol; and 75 to 85 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 15 to 25 mole % cyclohexanedimethanol. [00354] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 80 to 99 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 1 to 20 mole % cyclohexanedimethanol; 80 to 95 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 5 to 20 mole % cyclohexanedimethanol; 80 to 90 mole % 2,2,4,4-tetramethyM, 3-cyclobutanediol and 10 to 20 mole % cyclohexanedimethanol.
[00355] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges 37 to 80 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 20 to 63 mole % cyclohexanedimethanol; 40 to less than 45 mole % 2,2,4,4-tetramethyM , 3-cyclobutanediol and greater than 55 to 60 mole % cyclohexanedimethanol; greater than 45 to 55 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 45 to less than 55 mole % cyclohexanedimethanol; and 46 to 55 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 45 to 54 mole % cyclohexanedimethanol; and 46 to 65 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 35 to 54 mole % cyclohexanedimethanol. [00356] In other aspects of the invention, the glycol component for the polyesters useful in the invention include but are not limited to at least one of the following combinations of ranges: 0.01 to 15 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 85 to 99.99 mole % cyclohexanedimethanol; 0.01 to less than 15 mole % 2,2,4,4-tetramethyM, 3-cyclobutanediol and greater than 85 to 99.99 mole % cyclohexanedimethanol, 0.01 to 14 mole % 2,2,4,4-tetramethyl- 1, 3-cyclobutanediol and 86 to 99.99 mole % 1 ,4-cyclohexanedimethanol; 0.01 to 13 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 87 to 99.99 mole % cyclohexanedimethanol; 0.01 to 12 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 88 to 99.99 mole % 1,4-cyclohexanedimethano; 0.01 to 11 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and 89 to 99.99 mole % cyclohexanedimethanol; 0.01 to 10 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 90 to 99.99 mole % cyclohexanedimethanol; 0.01 to less than 10 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and greater than 90 to 99.99 mole % cyclohexanedimethanol; 0.01 to 9 mole % 2,2,4,4-tetramethyM ,3- cyclobutanediol and 91 to 99.99 mole % cyclohexanedimethanol; 0.01 to 8 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 92 to 99.99 mole % cyclohexanedimethanol; 0.01 to 7 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 93 to 99.99 mole % cyclohexanedimethanol; 0.01 to 5 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 95 to 99.99 mole % cyclohexanedimethanol; 0.01 to less than 5 mole % 2,2,4,4-tetramethyM ,3-cyclobutanediol and greater than 95 to 99.99 mole % cyclohexanedimethanol; 0.01 to 4.5 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 95.5 to 99.99 mole % cyclohexanedimethanol; 0.01 to 4 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol and 96 to 99.99 mole % cyclohexanedimethanol; 0.01 to 3.5 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 96.5 to 99.99 mole % cyclohexanedimethanol; 0.01 to 3 mole % 2,2,4,4-tetramethyl-i ,3-cyclobutanediol and 97 to 99.99 mole % cyclohexanedimethanol; 0.01 to 2.5 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 97.5 to 99.99 mole % cyclohexanedimethanol; 0.01 to 2 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 98 to 99.99 mole % cyclohexanedimethanol; 0.01 to 1.5 mole % 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol and 98.5 to 99.99 mole % cyclohexanedimethanol; 0.01 to 1 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol and 99 to 99.99 mole % cyclohexanedimethanol; and 0.01 to 0.5 mole % 2,2,4,4- tetramethyM ,3-cyclobutanediol and 99.5 to 99.99 mole % cyclohexanedimethanol.
[00357] In other aspects of the invention where the mole percent of 2,2,4,4- tetramethyM ,3-cyclobutanediol is present at 0.01 to less than 5 mole % based on the mole percentages for the diol component equaling 100 mole % and where the presence of CHDM is optional, the glycol component for the polyesters useful in the invention include but are not limited to at least one or more of the following combinations of ranges: 0.01 to less than 5 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues, 0.01 to greater than 95 mole %of ethylene glycol residues, and 0 to 99.98 mole % of cyclohexanedimethanol; 0.01 to less than 5 mole % of 2,2.4,4-tetramethyM ,3-cyclobutanediol residues, 0.01 to greater than 99.98 mole %of ethylene glycol residues, and 0.01 to 99.97 mole % of cyclohexanedimethanol; 0.01 to less than 5 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues, 0.01 to greater 90 mole % of ethylene glycol residues, and 5 to 99.98 mole % of cyclohexanedimethanol; 0.01 to less than 5 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues, 0.01 to greater than 85 mole %of ethylene glycol residues, and 10 to 99.98 mole % of cyclohexanedimethanol; 0.01 to less than 5 mole % of 2,2,4,4-tetramethyM ,3-cyclobutanediol residues, 0.01 to greater than 80 mole %of ethylene glycol residues, and 15 to 99.98 mole % of cyclohexanedimethanol; 0.01 to less than 5 mole % of 2,2,4,4-tetramethyl- 1,3-cyclobutanediol residues, 0.01 to greater than 75 mole % of ethylene glycol residues, and 20 to 99.98 mole % of cyclohexanedimethanol; 0.01 to less than 5 mole % of 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol residues, 0.01 to greater than 70 mole % of ethylene glycol residues, and 25 to 99.98 mole % of cyclohexanedimethanol; 0.01 to greater than 65 mole % of ethylene glycol residues, and 30 to 99.98 mole % of cyclohexanedimethanol; 0.01 to less than 5 mole % of 2,2,4 ,4-tetramethyM ,3-cyclobutanediol residues, 0.01 to greater than 60 mole % of ethylene glycol residues, and 35 to 99.98 mole % of cyclohexanedimethanol; 0.01 to less than 5 mole % of 2,2,4.4-tetramethyM ,3- cyclobutanediol residues, 0.01 to greater than 55 mole % of ethylene glycol residues, and 40 to 99.98 mole % of cyclohexanedimethanol; 0.01 to less than 5 mole % of 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol residues, 0.01 to greater than 50 mole % of ethylene glycol residues, and 45 to 99.98 mole % of cyclohexanedimethanol; 0.01 to less than 5 mole % of 2, 2,4,4-tetramethyM ,3- cyclobutanediol residues, 0.01 to greater than 45 mole % of ethylene glycol residues, and 50 to 99.98 mole % of cyclohexanedimethanol; 0.01 to less 5 mole % of 2,2,4,4-tetramethyM ,3-cyclobutanediol residues, 0.01 to greater than 40 mole % of ethylene glycol residues, and 55 to 99.98 mole % of cyclohexanedimethanol; 0.01 to less than 5 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues, 0.01 to greater than 35 mole % of ethylene glycol residues, and 60 to 99.98 mole % of cyclohexanedimethanol; 0.01 to less than 5 mole % of 2,2,4,4-tetramethyM ,3-cyclobutanediol residues, 0.01 to greater than 30 mole % of ethylene glycol residues, and 65 to 99.98 mole % of cyclohexanedimethanol; 0.01 to less than 5 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues, 0.01 to greater than 25 mole % of ethylene glycol residues, and 70 to 99.98 mole % of cyclohexanedimethanol; 0.01 to less than 5 mole % of 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol residues, 0.01 to greater than 20 mole % of ethylene glycol residues, and 75 to 99.98 mole % of cyclohexanedimethanol; 0.01 to less than 5 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues, 0.01 to greater than 15 mole % of ethylene glycol residues, and 80 to 99.98 mole % of cyclohexanedimethanol; 0.01 to less than 5 mole % of 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol residues, 0.01 to greater than 10 mole % of ethylene glycol residues, and 85 to 99.98 mole % of cyclohexanedimethanol; 0.01 to less than 5 mole % of 2,2,4,4-tetramethyl-1,3- cyclobutanediol residues, 0.01 to greater than 5 mole % of ethylene glycol residues, and 90 to 99.98 mole % of cyclohexanedimethanol; 0.01 to less than 5 mole % of 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol residues, and 0.01 to greater than 5 mole % of ethylene glycol residues, and 90 to 99.98 mole % of cyclohexanedimethanol.
[00358] In embodiments where the mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues, is 0.01 to 5 mole % based on the mole percentages for the diol component equaling 100 mole % and where the presence of CHDM is required, the glycol component for the polyesters useful the invention include but are not limited to at least of the following combinations of ranges: 0.01 to 5 mole % of 2,2.4,4-tetramethyM ,3-cyclobutanediol residues, 89 to 94.99 mole % of ethylene glycol residues, and 5 to 10 mole % of cyclohexanedimethanol; 0.01 to 5 mole % of 2,2,4,4-tetramethyM ,3-cyclobutanediol residues, 89 to 94.99 mole % of ethylene glycol residues, and 5 to 10 mole % of cyclohexanedimethanol; 0.01 to 5 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues, 84 to 89.99 mole % of ethylene glycol residues, and 10 to 15 mole % of cyclohexanedimethanol; 0.01 to 5 mole % of 2,2,4,4-tetramethyM, 3- cyclobutanediol residues, 79 to 84.99 mole % of ethylene glycol residues, and 15 to 20 mole % of cyclohexanedimethanol; 0.01 to 5 mole % of 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol residues, 74 to 79.99 mole % of ethylene glycol residues, and 20 to 25 mole % of cyclohexanedimethanol; 0.01 to 5 mole % of 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol residues, 69 to 74.99 mole % of ethylene glycol residues, and 25 to 30 mole % of cyclohexanedimethanol; 0.01 to 5 mole % of 2, 2,4,4-tetramethyM ,3-cyclobutanediol residues, 64 to 69.99 mole % of ethylene glycol residues, and 30 to 35 mole % of cyclohexanedimethanol; 0.01 to 5 mole % of 2,2,4,4-tetramethyM ,3-cyclobutanediol residues, 59 to 64.99 mole % of ethylene glycol residues, and 35 to 40 mole % of cyclohexanedimethanol; 0.01 to 5 mole % of 2,2,4,4-tetramethyM ,3-cyclobutanediol residues, 54 to 59.99 mole % of ethylene glycol residues, and 40 to 45 mole % of cyclohexanedimethanol; 0.01 to 5 mole % of 2,2,4,4-tetramethyM, 3-cyclobutanediol residues, 49 to 54.99 mole % of ethylene glycol residues, and 45 to 50 mole % of cyclohexanedimethanol; 0.01 to 5 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues, 44 to 49.99 mole % of ethylene glycol residues, and 50 to 55 mole % of cyclohexanedimethanol; 0.01 to 5 mole % of 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol residues, 39 to 44.99 mole % of ethylene glycol residues, and 55 to 60 mole % of cyclohexanedimethanol; 0.01 to 5 mole % of 2,2,4,4- tetramethyM ,3-cyclobutanediol residues, 34 to 39.99 mole % of ethylene glycol residues, and 60 to 65 mole % of cyclohexanedimethanol; 0.01 to 5 mole % of 2,2,4,4-tetramethyM ,3-cyclobutanediol residues, 29 to 34.99 mole % of ethylene glycol residues, and 65 to 70 mole % of cyclohexanedimethanol; 0.01 to 5 mole % of 2,2,4,4-tetramethyM ,3-cyclobutanediol residues, 24 to 29.99 mole % of ethylene glycol residues, and 70 to 75 mole % of cyclohexanedimethanol; 0.01 to 5 mole % of 2,2,4,4-tetramethyM ,3-cyclobutanediol residues, 19 to 24.99 mole % of ethylene glycol residues, and 75 to 80 mole % of cyclohexanedimethanol; 0.01 to 5 mole % of 2,2,4,4-tetramethyM ,3-cyclobutanediol residues, 14 to 19.99 mole % of ethylene glycol residues, and 80 to 85 mole % of cyclohexanedimethanol; 0.01 to 5 mole % of 2,2,4,4-tetramethyM, 3-cyclobutanediol residues, 9 to 14.99 mole % of ethylene glycol residues, and 85 to 90 mole % of cyclohexanedimethanol; 0.01 to 5 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues, 4 to 9.99 mole % of ethylene glycol residues, and 90 to 95 mole % of cyclohexanedimethanol; 0.01 to 5 mole % of 2,2,4,4-tetramethyl- 1 , 3-cyclobutanediol residues, 95 to 99.99 mole % of ethylene glycol residues, and 0 to 5 mole % of cyclohexanedimethanol; [003591 ln any embodiment In embodiments where the mole % of 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol residues, is 0.01 to 5 mole % based on the mole percentages for the diol component equaling 100 mole % and where the presence of CHDM is required, the glycol component for the polyesters useful the invention can also include embodiments where 0.01 to less than 5 mole % TMCD is present and a corresponding reduction in either cyclohexanedimethanol and/or ethylene glycol residues would be contemplated within the scope of this invention.
[00360] The glycol component may also contain one of the following ranges of 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol residues: 0.01 to 10 mole%; 0.01 to 9.5 mole % 0.01 to 9 mole %; 0.01 to 8.5 mole %; 0.01 to 8 mole %; 0.01 to 7.5 mole %; 0.01 to 7.0; 0.01 to 6.5 mole %; 0.01 to 6 mole %; 0.01 to 5.5 mole %; 0.01 to 5 mole %; 0.01 to less than 5 mole %; 0.01 to 4.5 mole %; 0.01 to 4 mole %; 0.01 to 3.5 mole %; 0.01 to 3 mole %; 0.01 to 2.5 mole %; 0.01 to 2.0 mole %; 0.01 to 2.5 mole %; 0.01 to 2 mole %; 0.01 to 1.5 mole %; 0.01 to 1.0 mole %; and 0.01 to 0.5 mole %.
[00361] In certain embodiments, the remainder of the glycol component can include, but is not limited, to any amount of cyclohexanedimethanol and/or ethylene glycol residues so long as the total amount of the glycol component equals 100 mole %.
[00362] In addition to the diols set forth above, the polyesters useful in the polyester compositions useful in the invention may be made from 1 ,3- propanediol, 1 ,4-butanediol, and mixtures thereof. It is contemplated that compositions of the invention made from 1 ,3-propanediol, 1 ,4-butanediol, and mixtures thereof can possess at least one of the Tg ranges described herein, at least one of the inherent viscosity ranges described herein, and/or at least one of the glycol or diacid ranges described herein. In addition or in the alternative, the polyesters made from 1 ,3-propanediol or 1 ,4-butanediol and mixtures thereof may also be made from 1 ,4-cyclohexanedmethanol in at least one of the following amounts: from 0.1 to 99 mole %; 0.1 to 90 mole %; from 0.1 to 80 mole %; from 0.1 to 70 mole %; from 0.1 to 60 mole %; from 0.1 to 50 mole %; from 0.1 to 40 mole %; from 0.1 to 35 mole %; from 0.1 to 30 mole %; from 0.1 to 25 mole %; from 0.1 to 20 mole %; from 0.1 to 15 mole %; from 0.1 to 10 mole %; from 0.1 to 5 mote %; from 1 to 99 mole %; from 1 to 90 mole %; from 1 to 80 mole %; from 1 to 70 mole %; from 1 to 60 mole %; from 1 to 50 mole %; from 1 to 40 mole %; from 1 to 35 mole %; from 1 to 30 mole %; from 1 to 25 mole %; from 1 to 20 mole %; from 1 to 15 mole %; from 1 to 10 mole %; from 1 to 5 mole %; from 5 to 80 mole %; 5 to 70 mole %; from 5 to 60 mole %; from 5 to 50 mole %; from 5 to 40 mole %; from 5 to 35 mole %; from 5 to 30 mole %; from 5 to 25 mole %; from 5 to 20 mole %; and from 5 to 15 mole %; from 5 to 10 mole %; from 10 to 99 mole %; from 10 to 90 mole %; from 10 to 80 mole %; from 10 to 70 mole %; from 10 to 60 mole %; from 10 to 50 mole %; from 10 to 40 mole %; from 10 to 35 mole %; from 10 to 30 mole %; from 10 to 25 mole %; from 10 to 20 mole %; from 10 to 15 mole %; from 20 to 99 mole %; 20 to 95 mole %; from 20 to 80 mole %; from 20 to 70 mole %; from 20 to 60 mole %; from 20 to 50 mole %; from 20 to 40 mole %; from 20 to 35 mole %; from 20 to 30 mole %; and from 20 to 25 mole %.
[00363] For embodiments of the invention, the polyesters useful in the invention may exhibit at least one of the following inherent viscosities as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C: 0.10 to 1.2 dL/g; 0.10 to 1.1 dL/g; 0.10 to 1 dL/g; 0.10 to less than 1 dl_/g; 0.10 to 0.98 dl_/g; 0.10 to 0.95 dL/g; 0.10 to 0.90 dL/g; 0.10 to 0.85 dL/g; 0.10 to 0.80 dl_/g; 0.10 to 0.75 dL/g; 0.10 to less than 0.75 dL/g; 0.10 to 0.72 dL/g; 0.10 to 0.70 dl_/g; 0.10 to less than 0.70 dL/g; 0.10 to 0.68 dL/g; 0.10 to less than 0.68 dL/g; 0.10 to 0.65 dL/g; 0.10 to 0.6 dL/g; 0.10 to 0.55 dL/g; 0.10 to 0.5 dL/g; 0.10 to 0.4 dL/g; 0.10 to 0.35 dL/g; 0.20 to 1.2 dL/g; 0.20 to 1.1 dL/g; 0.20 to 1 dL/g; 0.20 to less than 1 dL/g; 0.20 to 0.98 dL/g; 0.20 to 0.95 dL/g; 0.20 to 0.90 dL/g; 0.20 to 0.85 dl_/g; 0.20 to 0.80 dL/g; 0.20 to 0.75 dl_/g; 0.20 to less than 0.75 dL/g; 0.20 to 0.72 dL/g; 0.20 to 0.70 dL/g; 0.20 to less than 0.70 dL/g; 0.20 to 0.68 dL/g; 0.20 to less than 0.68 dL/g; 0.20 to 0.65 dL/g; 0.20 to 0.6 dL/g; 0.20 to 0.55 dL/g; 0.20 to 0.5 dL/g; 0.20 to 0.4 dL/g; 0.20 to 0.35 dL/g; 0.35 to 1.2 dL/g; 0.35 to 1.1 dL/g; 0.35 to 1 dL/g; 0.35 to less than 1 dL/g; 0.35 to 0.98 dL/g; 0.35 to 0.95 dl_/g; 0.35 to 0.90 dL/g; 0.35 to 0.85 dL/g; 0.35 to 0.80 dl_/g; 0.35 to 0.75 dl_/g; 0.35 to less than 0.75 dL/g; 0.35 to 0.72 dL/g; 0.35 to 0.70 dL/g; 0.35 to less than 0.70 dl_/g; 0.35 to 0.68 dl_/g; 0.35 to less than 0.68 dl_/g; 0.35 to 0.65 dl_/g; 0.40 to 1.2 dL/g; 0.40 to 1.1 dL/g; 0.40 to 1 dl_/g; 0.40 to less than 1 dl_/g; 0.40 to 0.98 dl_/g; 0.40 to 0.95 dl_/g; 0.40 to 0.90 dL/g; 0.40 to 0.85 dL/g; 0.40 to 0.80 dL/g; 0.40 to 0.75 dL/g; 0.40 to less than 0.75 dl_/g; 0.40 to 0.72 dL/g; 0.40 to 0.70 dL/g; 0.40 to less than 0.70 dL/g; 0.40 to 0.68 dL/g; 0.40 to less than 0.68 dL/g; 0.40 to 0.65 dl_/g; greater than 0.42 to 1.2 dL/g; greater than 0.42 to 1.1 dl_/g; greater than 0.42 to 1 dl_/g; greater than 0.42 to less than 1 dl_/g; greater than 0.42 to 0.98 dL/g; greater than 0.42 to 0.95 dL/g; greater than 0.42 to 0.90 dL/g; greater than 0.42 to 0.85 dl_/g; greater than 0.42 to 0.80 dl_/g; greater than 0.42 to 0.75 dl_/g; greater than 0.42 to less than 0.75 dL/g; greater than 0.42 to 0.72 dl_/g; greater than 0.42 to 0.70 dL/g; greater than 0.42 to less than 0.70 dL/g; greater than 0.42 to 0.68 dl_/g; greater than 0.42 to less than 0.68 dL/g; greater than 0.42 to 0.65 dl_/g; 0.69 to 0.75 dl_/g;0.64 to 0.65 dl_/g; 0.61 to 0.68 dL/g; 0.60 to 0.64 dL/g; 0.55 to 0.67 dl_/g; and 0.72 dl_/g.
[00364] For embodiments of the invention, the polyesters useful in the invention may exhibit at least one of the following inherent viscosities as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 250C: 0.45 to 1.2 dL/g; 0.45 to 1.1 dL/g; 0.45 to 1 dL/g; 0.45 to 0.98 dL/g; 0.45 to 0.95 dL/g; 0.45 to 0.90 dL/g; 0.45 to 0.85 dl_/g; 0.45 to 0.80 dL/g; 0.45 to 0.75 dL/g; 0.45 to less than 0.75 dl_/g; 0.45 to 0.72 dL/g; 0.45 to 0.70 dL/g; 0.45 to less than 0.70 dLJg; 0.45 to 0.68 dL/g; 0.45 to less than 0.68 dl_/g; 0.45 to 0.65 dL/g; 0.50 to 1.2 dL/g; 0.50 to 1.1 dL/g; 0.50 to 1 dl_/g; 0.50 to less than 1 dL/g; 0.50 to 0.98 dl_/g; 0.50 to 0.95 dL/g; 0.50 to 0.90 dL/g; 0.50 to 0.85 dL/g; 0.50 to 0.80 dl_/g; 0.50 to 0.75 dL/g; 0.50 to less than 0.75 dL/g; 0.50 to 0.72 dl_/g; 0.50 to 0.70 dL/g; 0.50 to less than 0.70 dL/g; 0.50 to 0.68 dL/g; 0.50 to less than 0.68 dl_/g; 0.50 to 0.65 dL/g; 0.55 to 1.2 dL/g; 0.55 to 1.1 dL/g; 0.55 to 1 dL/g; 0.55 to less than 1 dL/g; 0.55 to 0.98 dL/g; 0.55 to 0.95 dL/g; 0.55 to 0.90 dL/g; 0.55 to 0.85 dL/g; 0.55 to 0.80 dl_/g; 0.55 to 0.75 dL/g; 0.55 to less than 0.75 dl_/g; 0.55 to 0.72 dL/g; 0.55 to 0.70 dL/g; 0.55 to less than 0.70 dL/g; 0.55 to 0.68 dL/g; 0.55 to less than 0.68 dL/g; 0.55 to 0.65 dL/g; 0.58 to 1.2 dL/g; 0.58 to 1.1 dL/g; 0.58 to 1 dL/g; 0.58 to less than 1 dL/g; 0.58 to 0.98 dL/g; 0.58 to 0.95 dL/g; 0.58 to 0.90 dL/g; 0.58 to 0.85 dL/g; 0.58 to 0.80 dL/g; 0.58 to 0.75 dL/g; 0.58 to less than 0.75 dL/g; 0.58 to 0.72 dl_/g; 0.58 to 0.70 dL/g; 0.58 to less than 0.70 dL/g; 0.58 to 0.68 dl_/g; 0.58 to less than 0.68 dL/g; 0.58 to 0.65 dL/g; 0.60 to 1.2 dL/g; 0.60 to 1.1 dL/g; 0.60 to 1 dL/g; 0.60 to less than 1 dL/g; 0.60 to 0.98 dl_/g; 0.60 to 0.95 dL/g; 0.60 to 0.90 dl_/g; 0.60 to 0.85 dL/g; 0.60 to 0.80 dL/g; 0.60 to 0.75 dL/g; 0.60 to less than 0.75 dL/g; 0.60 to 0.72 dL/g; 0.60 to 0.70 dL/g; 0.60 to less than 0.70 dL/g; 0.60 to 0.68 dL/g; 0.60 to less than 0.68 dl_/g; 0.60 to 0.65 dl_/g; 0.65 to 1.2 dL/g; 0.65 to 1.1 dUg; 0.65 to 1 dL/g; 0.65 to less than 1 dl_/g; 0.65 to 0.98 dL/g; 0.65 to 0.95 dl_/g; 0.65 to 0.90 dl_/g; 0.65 to 0.85 dL/g; 0.65 to 0.80 dL/g; 0.65 to 0.75 dL/g; 0.65 to less than 0.75 dL/g; 0.65 to 0.72 dL/g; 0.65 to 0.70 dL/g; 0.65 to less than 0.70 dL/g; 0.68 to 1.2 dL/g; 0.68 to 1.1 dL/g; 0.68 to 1 dL/g; 0.68 to less than 1 dL/g; 0.68 to 0.98 dL/g; 0.68 to 0.95 dl_/g; 0.68 to 0.90 dL/g; 0.68 to 0.85 dL/g; 0.68 to 0.80 dL/g; 0.68 to 0.75 dL/g; 0.68 to less than 0.75 dl_/g; 0.68 to 0.72 dL/g; greater than 0.76 dL/g to 1.2 dL/g; greater than 0.76 dL/g to 1.1 dL/g; greater than 0.76 dl_/g to 1 dL/g; greater than 0.76 dL/g to less than 1 dL/g; greater than 0.76 dl_/g to 0.98dL/g; greater than 0.76 dL/g to 0.95 dL/g; greater than 0.76 dL/g to 0.90 dL/g; greater than 0.80 dL/g to 1.2 dl_/g; greater than 0.80 dL/g to 1.1 dL/g; greater than 0.80 dL/g to 1 dL/g; greater than 0.80 dL/g to less than 1 dL/g; greater than 0.80 dL/g to 1.2 dL/g; greater than 0.80 dL/g to 0.98dL/g; greater than 0.80 dL/g to 0.95 dL/g; greater than 0.80 dL/g to 0.90 dl_/g.
[00365] It is contemplated that compositions useful in the invention can possess at least one of the inherent viscosity ranges described herein and at least one of the monomer ranges for the compositions described herein unless otherwise stated. It is also contemplated that compositions useful in the invention can possess at least one of the Tg ranges described herein and at least one of the monomer ranges for the compositions described herein unless otherwise stated. It is also contemplated that compositions useful in the invention can possess at least one of the inherent viscosity ranges described herein, at least one of the Tg ranges described herein, and at least one of the monomer ranges for the compositions described herein unless otherwise stated. [00366] In one embodiment, terephthalic acid may be used as the starting material. In another embodiment, dimethyl terephthalate may be used as the starting material. In yet another embodiment, mixtures of terephthalic acid and dimethyl terephthalate may be used as the starting material and/or as an intermediate material.
[00367] In certain embodiments, terephthalic acid or an ester thereof, such as, for example, dimethyl terephthalate or a mixture of terephthalic acid residues and an ester thereof can make up a portion or all of the dicarboxylic acid component used to form the polyesters useful in the invention. In certain embodiments, terephthalic acid residues can make up a portion or all of the dicarboxylic acid component used to form the polyesters useful in the invention. In certain embodiments, higher amounts of terephthalic acid can be used in order to produce a higher impact strength polyester. For purposes of this disclosure, the terms "terephthalic acid" and "dimethyl terephthalate" are used interchangeably herein. In one embodiment, dimethyl terephthalate is part or all of the dicarboxylic acid component used to make the polyesters useful in the present invention. In all embodiments, ranges of from 70 to 100 mole %; or 80 to 100 mole %; or 90 to 100 mole %; or 99 to 100 mole %; or 100 mole % terephthalic acid and/or dimethyl terephthalate and/or mixtures thereof may be used. [00368] In addition to terephthalic acid, the dicarboxylic acid component of the polyesters useful in the invention can comprise up to 30 mole %, up to 20 mole %, up to 10 mole %, up to 5 mole%, or up to 1 mole % of one or more modifying aromatic dicarboxylic acids. Yet another embodiment contains 0 mole % modifying aromatic dicarboxylic acids. Thus, if present, it is contemplated that the amount of one or more modifying aromatic dicarboxylic acids can range from any of these preceding endpoint values including, for example, from 0.01 to 30 mole %, 0.01 to 20 mole %. from 0.01 to 10 mole %, from 0.01 to 5 mole % and from 0.01 to 1 mole %. In one embodiment, modifying aromatic dicarboxylic acids that may be used in the present invention include but are not limited to those having up to 20 carbon atoms, and which can be linear, para-oriented, or symmetrical. Examples of modifying aromatic dicarboxylic acids which may be used in this invention include, but are not limited to, isophthalic acid, 4,4- biphenyldicarboxylic acid, 1 ,4-, 1 ,5-, 2,6-, 2,7-naphthalenedicarboxylic acid, and trans-4,4'-stilbenedicarboxylic acid, and esters thereof. In one embodiment, the modifying aromatic dicarboxylic acid is isophthalic acid.
[00369] The carboxylic acid component of the polyesters useful in the invention can be further modified with up to 10 mole %, such as up to 5 mole % or up to 1 mole % of one or more aliphatic dicarboxylic acids containing 2-16 carbon atoms, such as, for example, cyclohexanedicarboxylic, malonic, succinic, glutaric, adipic, pimelic, suberic, azelaic and dodecanedioic dicarboxylic acids. Certain embodiments can also comprise 0.01 to 10 mole %, such as 0.1 to 10 mole %, 1 or 10 mole %, 5 to 10 mole % of one or more modifying aliphatic dicarboxylic acids. Yet another embodiment contains 0 mole % modifying aliphatic dicarboxylic acids. The total mole % of the dicarboxylic acid component is 100 mole %. In one embodiment, adipic acid and/or glutaric acid are provided in the modifying aliphatic dicarboxylic acid component of the invention. [00370] The modifying dicarboxylic acids of the invention can include indan dicarboxylic acids, for example, indan-1 ,3-dicarboxylic acids and/or phenylindan dicarboxylic acids. In one embodiment, the dicarboxylic acid may be chosen from at least one of 1 ,2,3-trimethyl-3-phenylindan-4',5-dicarboxylic acid and 1 ,1 ,3-trimethyl-5-carboxy-3-(4-carboxyphenyl)indan dicarboxylic acid. For the purposes of this invention, any of the indan dicarboxylic acids described in United States Patent Application Publication No. 2006/0004151A1 entitled "Copolymers Containing Indan Moieties and Blends Thereof by Shaikh et al., assigned to General Electric Company may be used as at least one modifying dicarboxylic acid within the scope of this invention; United States Patent Application Publication No. 2006/0004151 A1 is incorporated herein by reference with respect to any of the indan dicarboxylic acids described therein.
[00371] Esters of terephthalic acid and the other modifying dicarboxylic acids or their corresponding esters and/or salts may be used instead of the dicarboxylic acids. Suitable examples of dicarboxylic acid esters include, but are not limited to, the dimethyl, diethyl, dipropyl, diisopropyl, dibutyl, and diphenyl esters. In one embodiment, the esters are chosen from at least one of the following: methyl, ethyl, propyl, isopropyl, and phenyl esters. [00372) For the desired polyester, the molar ratio of cis/trans 2,2,4,4- tetramethyl-1 ,3-cyclobutaπediol can vary from the pure form of each and mixtures thereof. In certain embodiments, the molar percentages for cis and/or trans 2,2,4,4,-tetramethyl-1 ,3-cyclobutanediol are greater than 50 mole % cis and less than 50 mole % trans; or greater than 55 mole % cis and less than 45 mole % trans; or 30 to 70 mole % cis and 70 to 30 mole % trans; or 40 to 60 mole % cis and 60 to 40 mole % trans; or 50 to 70 mole % trans and 50 to 30 mole % cis; or 50 to 70 mole % cis and 50 to 30 mole % trans; or 60 to 70 mole % cis and 30 to 40 mole % trans; or greater than 70 mole % cis and less than 30 mole % trans; wherein the total mole percentages for cis- and trans- 2,2,4,4-tetramethyM ,3- cyclobutanediol is equal to 100 mole %. In an additional embodiment, the molar ratio of cis/trans 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol can vary within the range of 50/50 to 0/100, for example, between 40/60 to 20/80.
[00373] The cyclohexanedimethanol may be cis, trans, or a mixture thereof, for example, a cis/trans ratio of 60:40 to 40:60 or a cis/trans ratio of 70:30 to 30:70. In another embodiment, the trans-cyclohexanedimethanol can be present in an amount of 60 to 80 mole % and the cis-cyclohexanedimethanol can be present in an amount of 20 to 40 mole % wherein the total percentages of cis- cyclohexanedimethanol and trans-cyclohexanedimethanol is equal to 100 mole %. In particular embodiments, the trans-cyclohexanedimethanol can be present in an amount of 60 mole % and the cis-cyclohexanedimethanol can be present in an amount of 40 mole %. In particular embodiments, the trans- cyclohexanedimethanol can be present in an amount of 70 mole % and the cis- cyclohexanedimethanol can be present in an amount of 30 mole %. Any of 1,1-, 1 ,2-, 1 ,3-, 1 ,4- isomers of cyclohexanedimethanol or mixtures thereof may be present in the glycol component of this invention. In one embodiment, the polyesters useful in the invention comprise 1 ,4-cyclohexanedimethanol. In another embodiment, the polyesters useful in the invention comprise 1 ,4- cyclohexanedimethanol and 1 ,3-cyclohexanedimethanol. The molar ratio of cis/trans 1,4-cyclohexandimethanol can vary within the range of 50/50 to 0/100, for example, between 40/60 to 20/80. [00374] In one embodiment, the glycol component of the polyester portion of the polyester compositions useful in the invention can contain 98 mole % or less of one or more modifying glycols which are not 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol or cyclohexanedimethanol; in one embodiment, the glycol component of the polyester portion of the polyester compositions useful in the invention can contain 50 to 98 mole % of one or more modifying glycols which are not 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol or cyclohexanedimethanol; in one embodiment, the glycol component of the polyester portion of the polyester compositions useful in the invention can contain 25 mole % or less of one or more modifying glycols which are not 2,2,4,4-tetramethyl-1,3-cyclobutanediol or cyclohexanedimethanol; in one embodiment, the glycol component of the polyester portion of the polyester compositions useful in the invention can contain 20 mole % or less of one or more modifying glycols which are not 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol or cyclohexanedimethanol; in one embodiment, the polyesters useful in the invention may contain less than 15 mole % or of one or more modifying glycols. In another embodiment, the polyesters useful in the invention can contain 10 mole % or less of one or more modifying glycols. In another embodiment, the polyesters useful in the invention can contain 5 mole % or less of one or more modifying glycols. In another embodiment, the polyesters useful in the invention can contain 3 mole % or less of one or more modifying glycols. In another embodiment, the polyesters useful in the invention can contain 0 mole % modifying glycols. Certain embodiments can also contain 0.01 to 98 mole %, such as 0.1 to 98 mole %, 1 to 98 mole %, 5 to 98 mole %, or 10 to 98 mole % of one or more modifying glycols.
[00375] Modifying glycols useful in the polyesters useful in the invention refer to diols other than 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and cyclohexanedimethanol and can contain 2 to 16 carbon atoms. Examples of suitable modifying glycols include, but are not limited to, ethylene glycol residues, 1 ,2-propanediol, 1 ,3-propanediol, neopentyl glycol, 1,4-butanediol, 1,5- pentanediol, 1 ,6-hexanediol, p-xylene glycol, polytetramethylene glycol, and mixtures thereof. In one embodiment, the modifying glycol is ethylene glycol. In another embodiment, the modifying glycols include, but are not limited to, at least one of 1 ,3-propanediol and 1 ,4-butanediol. In another embodiment, ethylene glycol residues is excluded as a modifying diol. In another embodiment, 1,3- propanediol and 1 ,4-butanediol are excluded as modifying diols. In another embodiment, 2, 2-dimethyl-1 ,3-propanediol is excluded as a modifying diol. [00376] The polyesters and/or the polycarbonates useful in the polyesters compositions of the invention can comprise from 0 to 10 mole percent, for example, from 0.01 to 5 mole percent, from 0.01 to 1 mole percent, from 0.05 to 5 mole percent, from 0.05 to 1 mole percent, or from 0.1 to 0.7 mole percent, based the total mole percentages of either the diol or diacid residues; respectively, of one or more residues of a branching monomer, also referred to herein as a branching agent, having 3 or more carboxyl substituents, hydroxy I substituents, or a combination thereof. In certain embodiments, the branching monomer or agent may be added prior to and/or during and/or after the polymerization of the polyester. The polyester(s) useful in the invention can thus be linear or branched. The polycarbonate can also be linear or branched. In certain embodiments, the branching monomer or agent may be added prior to and/or during and/or after the polymerization of the polycarbonate. [00377] Examples of branching monomers include, but are not limited to, multifunctional acids or multifunctional alcohols such as trimellitic acid, trimellitic anhydride, pyromellitic dianhydride, trimethylolpropane, glycerol, pentaerythritol, citric acid, tartaric acid, 3-hydroxyglutaric acid and the like. In one embodiment, the branching monomer residues can comprise 0.1 to 0.7 mole percent of one or more residues chosen from at least one of the following: trimellitic anhydride, pyromellitic dianhydride, glycerol, sorbitol, 1 ,2,6-hexanetriol, pentaerythritol, trimethylolethane, and/or trimesic acid. The branching monomer may be added to the polyester reaction mixture or blended with the polyester in the form of a concentrate as described, for example, in U.S. Patent Nos. 5,654,347 and 5,696,176, whose disclosure regarding branching monomers is incorporated herein by reference.
[00378] The polyesters of the invention can comprise at least one chain extender. Suitable chain extenders include, but are not limited to, multifunctional (including, but not limited to, bifunctional) isocyanates, multifunctional epoxides, including for example .epoxylated novolacs, and phenoxy resins. In certain embodiments, chain extenders may be added at the end of the polymerization process or after the polymerization process. If added after the polymerization process, chain extenders can be incorporated by compounding or by addition during conversion processes such as injection molding or extrusion. The amount of chain extender used can vary depending on the specific monomer composition used and the physical properties desired but is generally about 0.1 percent by weight to about 10 percent by weight, such as about 0.1 to about 5 percent by weight, based on the total weight of the polyester.
[00379] The glass transition temperature (Tg) of the polyesters useful in the invention was determined using a TA DSC 2920 from Thermal Analyst Instrument at a scan rate of 20°C/min.
[00380] Because of the long crystallization half-times (e.g., greater than 5 minutes) at 1700C exhibited by certain polyesters useful in the present invention, it can be possible to produce articles, including but not limited to, injection molded parts, injection blow molded articles, injection stretch blow molded articles, extruded film, extruded sheet, extrusion blow molded articles, extrusion stretch blow molded articles, and fibers. A thermoformable sheet is an example of an article of manufacture provided by this invention.
[00381] The polyesters of the invention can be amorphous or semicrystalline. In one aspect, certain polyesters useful in the invention can have relatively low crystallinity. Certain polyesters useful in the invention can thus have a substantially amorphous morphology, meaning that the polyesters comprise substantially unordered regions of polymer.
[00382] In one embodiment, an "amorphous" polyester can have a crystallization half-time of greater than 5 minutes at 1700C or greater than 10 minutes at 17O0C or greater than 50 minutes at 1700C or greater than 100 minutes at 1700C. In one embodiment, of the invention, the crystallization half- times can be greater than 1 ,000 minutes at 1700C. In another embodiment of the invention, the crystallization half-times of the polyesters useful in the invention can be greater than 10,000 minutes at 1700C. The crystallization half time of the polyester, as used herein, may be measured using methods well-known to persons of skill in the art. For example, the crystallization half time of the polyester, t M2, can be determined by measuring the light transmission of a sample via a laser and photo detector as a function of time on a temperature controlled hot stage. This measurement can be done by exposing the polymers to a temperature, Tmaχ, and then cooling it to the desired temperature. The sample can then be held at the desired temperature by a hot stage while transmission measurements are made as a function of time. Initially, the sample can be visually clear with high light transmission and becomes opaque as the sample crystallizes. The crystallization half-time is the time at which the light transmission is halfway between the initial transmission and the final transmission. Tmax is defined as the temperature required to melt the crystalline domains of the sample (if crystalline domains are present). The sample can be heated to Tmax to condition the sample prior to crystallization half time measurement. The absolute Tmax temperature is different for each composition. For example PCT can be heated to some temperature greater than 2900C to melt the crystalline domains.
[00383] As shown in Table 1 and Figure 1 of the Examples, 2,2,4 ,4-tetramethyl- 1 ,3-cyclobutanediol is more effective than other comonomers such ethylene glycol and isophthalic acid at increasing the crystallization half-time, i.e., the time required for a polymer to reach half of its maximum crystallinity. By decreasing the crystallization rate of PCT, i.e. increasing the crystallization half-time, amorphous articles based on modified PCT may be fabricated by methods known in the art such as extrusion, injection molding, and the like. As shown in Table 1, these materials can exhibit higher glass transition temperatures and lower densities than other modified PCT copolyesters.
[00384] The polyester(s) useful in the invention can exhibit an improvement in toughness combined with processability for some of the embodiments of the invention. For example, lowering the inherent viscosity slightly of the polyesters useful in the invention can result in a more processable melt viscosity while retaining good physical properties of the polyesters such as toughness and heat resistance. [00385] In one embodiment, the melt viscosity of the polyester(s) useful in the invention is less than 30,000 poise as measured a 1 radian/second on a rotary melt rheometer at 2900C. In another embodiment, the melt viscosity of the polyester(s) useful in the invention is less than 20,000 poise as measured a 1 radian/second on a rotary melt rheometer at 2900C.
[00386] In one embodiment, the melt viscosity of the polyester(s) useful in the invention is less than 10,000 poise as measured at 1 radian/second (rad/sec) on a rotary melt rheometer at 2900C. In one embodiment, the melt viscosity of the polyester(s) useful in the invention is less than 15,000 poise as measured at 1 radian/second (rad/sec) on a rotary melt rheometer at 290°C. In another embodiment, the melt viscosity of the polyester(s) useful in the invention is less than 6,000 poise as measured at 1 radian/second on a rotary melt rheometer at 2900C. Viscosity at rad/sec is related to processability.
[00387] In one embodiment, certain polyesters useful in this invention can be visually clear. The term "visually clear" is defined herein as an appreciable absence of cloudiness, haziness, and/or muddiness, when inspected visually. In another embodiment, when the polyesters are blended with polycarbonate, including but not limited to, bisphenol A polycarbonates, the blends can be visually clear.
[00388] In other embodiments of the invention, the polyesters useful in the invention may have a yellowness index (ASTM D-1925) of less than 50 or less than 20.
[00389] In one embodiment, the polyesters useful in the invention and/or the polyester compositions of the invention, with or without toners, can have color values L*. a* and b* which can be determined using a Hunter Lab Ultra scan Spectra Colorimeter manufactured by Hunter Associates Lab Inc., Reston, Va. The color determinations are averages of values measured on either pellets of the polyesters or plaques or other items injection molded or extruded from them. They are determined by the L*a*b* color system of the CIE (International Commission on Illumination) (translated), wherein L* represents the lightness coordinate, a* represents the red/green coordinate, and b* represents the yellow/blue coordinate. In certain embodiments, the b* values for the polyesters useful in the invention can be from -10 to less than 10 and the L" values can be from 50 to 90. In other embodiments, the b* values for the polyesters useful in the invention can be present in one of the following ranges: from -10 to 9; -10 to 8; -10 to 7; -10 to 6; -10 to 5; -10 to 4; -10 to 3; -10 to 2; from -5 to 9; -5 to 8; -5 to 7; -5 to 6; -5 to 5; -5 to 4; -5 to 3; -5 to 2; 0 to 9; 0 to 8; 0 to 7; 0 to 6; 0 to 5; 0 to 4; 0 to 3; 0 to 2; 1 to 10; 1 to 9; 1 to 8; 1 to 7; 1 to 6; 1 to 5; 1 to 4; 1 to 3; and 1 to 2. In other embodiments, the L* value for the polyesters useful in the invention can be present in one of the following ranges: 50 to 60; 50 to 70; 50 to 80; 50 to 90; 60 to 70; 60 to 80; 60 to 90; 70 to 80; 79 to 90.
[00390] Increasing the content of 1 ,4-cyclohexanedimethanol in a copolyester based on terephthalic acid, ethylene glycol, and 1 ,4-cyclohexanedimethanol can improve toughness which can be determined by the brittle-to-ductile transition temperature in a notched Izod impact strength test as measured by ASTM D256. This toughness improvement, by lowering of the brittle-to-ductile transition temperature with 1 ,4-cyclohexanedimethanol, is believed to occur due to the flexibility and conformational behavior of 1 ,4-cyclohexanedimethanol in the copolyester. Incorporating 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol into PCT is believed to improve toughness, by lowering the brittle-to-ductile transition temperature, as shown in Table 2 and Figure 2 of the Examples. This is unexpected given the rigidity of 2,2,4,4-tetramethyl-i ,3-cyclobutanediol. [003911 In one embodiment, the polyesters useful in the invention can exhibit a ductile-to-brittle transition temperature of less than 0°C based on a 10-mil notch in a 1 /8-inch thick bar as defined by ASTM D256.
[00392] Notched Izod impact strength, as described in ASTM D256, is a common method of measuring toughness. The polyesters useful in the invention can possess one or more of the following properties: In one embodiment, the polyesters useful in the invention exhibit a notched Izod impact strength of at least 150 J/m (3 ft-lb/in) at 23°C with a 10-mil notch in a 3.2mm (1 /8-inch) thick bar determined according to ASTM D256; in one embodiment, the polyesters useful in the invention exhibit a notched Izod impact strength of at least (400 J/m) 7.5 ft-lb/in at 23°C with a 10-mil notch in a 3.2mm (1/8-inch) thick bar determined according to ASTM D256; in one embodiment, the polyesters useful in the invention exhibit a notched Izod impact strength of at least 1000 J/m (18 ft-lb/in) at 23°C with a 10-mil notch in a 3.2mm (1 /8-inch) thick bar determined according to ASTM D256. In one embodiment, the polyesters useful in the invention exhibit a notched Izod impact strength of at least 150 J/m (3 ft-lb/in) at 23°C with a 10- mil notch in a 6.4mm (1/4-inch) thick bar determined according to ASTM D256; in one embodiment, the polyesters useful in the invention exhibit a notched Izod impact strength of at least (400 J/m) 7.5 ft-lb/in at 23°C with a 10-mil notch in a 6.4mm (1/4-inch) thick bar determined according to ASTM D256; in one embodiment, the polyesters useful in the invention exhibit a notched Izod impact strength of at least 1000 J/m (18 ft-lb/in) at 23°C with a 10-mil notch in a 6.4mm (1/4-inch) thick bar determined according to ASTM D256. [00393] In another embodiment, certain polyesters useful in the invention can exhibit an increase in notched Izod impact strength when measured at 0°C of at least 3% or at least 5% or at least 10% or at least 15% as compared to the notched Izod impact strength when measured at -5°C with a 10-mil notch in a 1 /8-inch thick bar determined according to ASTM D256. In addition, certain other polyesters can also exhibit a retention of notched Izod impact strength within plus or minus 5% when measured at 00C through 300C with a 10-mil notch in a 1/8-inch thick bar determined according to ASTM D256. [00394] In yet another embodiment, certain polyesters useful in the invention can exhibit a retention in notched Izod impact strength with a loss of no more than 70% when measured at 23°C with a 10-mil notch in a 1/4-inch thick bar determined according to ASTM D256 as compared to notched Izod impact strength for the same polyester when measured at the same temperature with a 10-mil notch in a 1/8-inch thick bar determined according to ASTM D256. [00395] In one embodiment, polyesters of this invention exhibit superior notched toughness in thick sections. When tested by the Notched Izod impact strength test method of ASTM D256, polymers can exhibit either a complete break failure mode, where the test specimen breaks into two distinct parts, or a partial or no break failure mode, where the test specimen remains as one part. The complete break failure mode is associated with low energy failure. The partial and no break failure modes are associated with high energy failure. A typical thickness used to measure Notched Izod impact strength is 1/8". At this thickness, very few polymers are believed to exhibit a partial or no break failure mode, polycarbonate being one notable example. When the thickness of the test specimen is increased to %", however, no commercial amorphous materials exhibit a partial or no break failure mode. In one embodiment, compositions of the present example exhibit a no break failure mode when tested in the Notched Izod impact strength test method using a %" thick specimen. [00396] In one embodiment, the polyesters useful in the invention can exhibit at least one of the following densities: a density of less than 1.3 g/ml at 23°C; a density of less than 1.2 g/ml at 23°C; a density of less than 1.18 g/ml at 23°C; a density of 0.70 to 1.2 g/ml at 23°C; a density of 0.70 to 1.3 g/ml at 23°C; a density of 0.70 to less than 1.2 g/ml at 23°C; a density of 0.75 to 1.2 at 23°C; a density of 0.75 g/ml to less than 1.2 at 23°C; a density of 0.80 g/ml to 1.2 at 23°C; a density of 0.80 to less than 1.2 g/ml at 23°C; a density of 0.90 to 1.2 g/ml at 23°C; a density of 1.0 to 1.2 g/ml at 23°C; a density of 1.0 to 1.3 g/ml at 23°C a density of
1.1 to 1.2 g/ml at 23°C; a density of 1.13 to 1.3 g/ml at 23°C a density of 1.13 to
1.2 g/ml at 23°C; a density of 0.80 to 1.18 at 23°C; a density of 0.80 to less than 1.18 g/ml at 23°C; a density of 1.0 to less than 1.18 g/ml at 23°C; a density of 1.1 to less than 1.18 g/ml at 23°C.
[00397] In some embodiments, use of the polyester compositions useful in the invention minimizes and/or eliminates the drying step prior to melt processing and/or thermoforming.
[00398] In one embodiment, the thermal stabilizers) useful in the invention can be an organic compound such as, for example, a phosphorus acid ester containing halogenated or non-halogenated organic substituents. The thermal stabilizer can comprise a wide range of phosphorus compounds well-known in the art such as, for example, phosphines, phosphites, phosphinites, phosphonites, phosphinates, phosphonates, phosphine oxides, and phosphates. Examples of thermal stabilizers include tributyl phosphate, triethyl phosphate, tri- butoxyethyl phosphate, t-butylphenyl diphenyl phosphate, 2-ethylhexyl diphenyl phosphate, ethyl dimethyl phosphate, isodecyl diphenyl phosphate, trilauryl phosphate, triphenyl phosphate, tricresyl phosphate, trixylenyl phosphate, t- butylphenyl diphenylphosphate, resorcinol bis(diphenyl phosphate), tribenzyl phosphate, phenyl ethyl phosphate, trimethyl thionophosphate, phenyl ethyl thionophosphate, dimethyl methylphosphonate, diethyl methylphosphonate, diethyl pentylphosphonate, dilauryl methylphosphonate, diphenyl methylphosphonate, dibenzyl methylphosphonate, diphenyl cresylphosphonate, dimethyl cresylphosphonate, dimethyl methylthionophosphonate, phenyl diphenylphosphinate, benzyl diphenylphosphinate, methyl diphenylphosphinate, trimethyl phosphine oxide, triphenyl phosphine oxide, tribenzyl phosphine oxide, 4-methyl diphenyl phosphine oxide, triethyl phosphite, tributyl phosphite, trilauryl phosphite, triphenyl phosphite, tribenzyl phosphite, phenyl diethyl phosphite, phenyl dimethyl phosphite, benzyl dimethyl phosphite, dimethyl methylphosphonite, diethyl pentylphosphonite, diphenyl methylphosphonite, dibenzyl methylphosphonite. dimethyl cresylphosphonite, methyl dimethylphosphinite, methyl diethylphosphinite, phenyl diphenylphosphinite, methyl diphenylphosphinite, benzyl diphenylphosphinite, triphenyl phosphine, tribenzyl phosphine, and methyl diphenyl phosphine. In one embodiment, triphenyl phosphine oxide is excluded as a thermal stabilizer in the process(es) of making the polyesters useful in the invention and/or in the polyester composition(s) of the invention.
[00399] In one embodiment, thermal stabilizers useful in the invention can be any of the previously described phosphorus-based acids wherein one or more of the hydrogen atoms of the acid compound (bonded to either oxygen or phosphorus atoms) are replaced with alkyl, branched alkyl, substituted alkyl, alkyl ethers, substituted alkyl ethers, alkyl-aryl, alkyl-substituted aryl, aryl, substituted aryl, and mixtures thereof. In another embodiment, thermal stabilizers useful in the invention, include but are not limited to, the above described compounds wherein at least one of the hydrogen atoms bonded to an oxygen atom of the compound is replaced with a metallic ion or an ammonium ion. [00400] The esters can contain alkyl, branched alkyl, substituted alkyl, alkyl ethers, aryl, and/or substituted aryl groups. The esters can also have at least one alkyl group and at least one aryl group. The number of ester groups present in the particular phosphorus compound can vary from zero up to the maximum allowable based on the number of hydroxyl groups present on the phosphorus compound used. For example, an alkyl phosphate ester can include one or more of the mono-, di-, and tri alkyl phosphate esters; an aryl phosphate ester includes one or more of the mono-, di-, and tri aryl phosphate esters; and an alkyl phosphate ester and/or an aryl phosphate ester also include, but are not limited to, mixed alkyl aryl phosphate esters having at least one alkyl and one aryl group. [00401] In one embodiment, the thermal stabilizers useful in the invention include but are not limited to alkyl, aryl or mixed alkyl aryl esters or partial esters of phosphoric acid, phosphorus acid, phosphinic acid, phosphonic acid, or phosphonous acid. The alkyl or aryl groups can contain one or more substituents.
[00402] In one aspect, the phosphorus compounds useful in the invention comprise at least one thermal stabilizer chosen from at least one of substituted or unsubstituted alkyl phosphate esters, substituted or unsubstituted aryl phosphate esters, substituted or unsubstituted mixed alkyl aryl phosphate esters, diphosphites, salts of phosphoric acid, phosphine oxides, and mixed aryl alkyl phosphites, reaction products thereof, and mixtures thereof. The phosphate esters include esters in which the phosphoric acid is fully esterified or only partially esterified.
[00403] In one embodiment, for example, the thermal stabilizers useful in the invention can include at least one phosphate ester.
[00404] In one aspect, the phosphorus compounds useful in the invention comprise at least one thermal stabilizer chosen from at least one of substituted or unsubstituted alkyl phosphate esters, substituted or unsubstituted aryl phosphate esters, mixed substituted or unsubstituted alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof. The phosphate esters include esters in which the phosphoric acid is fully esterified or only partially esterified. [00405] In one embodiment, for example, the thermal stabilizers useful in the invention can include at least one phosphate ester.
[00406] In another embodiment, the phosphate esters useful in the invention can include but are not limited to alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, and/or mixtures thereof. [00407] In certain embodiments, the phosphate esters useful in the invention are those where the groups on the phosphate ester include are alkyl, alkoxy- alkyl phenyl, or substituted phenyl groups. These phosphate esters are generally referred to herein as alkyl and/or aryl phosphate esters. Certain preferred embodiments include trialkyl phosphates, triaryl phosphates, alkyl diary I phosphates, dialkyl aryl phosphates, and mixtures of such phosphates, wherein the alkyl groups are preferably those containing from 2 to 12 carbon atoms, and the aryl groups are preferably phenyl.
[00408] Representative alkyl and branched alkyl groups are preferably those containing from 1-12 carbon atoms, including, but not limited to, ethyl, propyl, isopropyl, butyl, hexyl, cyclohexyl, 2-ethylhexyl, octyl, decyl and dodecyl. Substituted alkyl groups include, but are not limited to, those containing at least one of carboxylic acid groups and esters thereof, hydroxy I groups, amino groups, keto groups, and the like.
[00409] Representative of alkyl-aryl and substituted alkyl-aryl groups are those wherein the alkyl portion contains from 1-12 carbon atoms, and the aryl group is phenyl or substituted phenyl wherein groups such as alkyl, branched alkyl, aryl, hydroxyl, and the like are substituted for hydrogen at any carbon position on the phenyl ring. Preferred aryl groups include phenyl or substituted phenyl wherein groups such as alkyl, branched alkyl, aryl, hydroxyl and the like are substituted for hydrogen at any position on the phenyl ring.
[00410] In one embodiment, the phosphate esters useful as thermal stabilizers in the invention include but are not limited to dibutylphenyl phosphate, triphenyl phosphate, tricresyl phosphate, tributyl phosphate, tri-2-ethylhexyl phosphate, trioctyl phosphate, and/or mixtures thereof, including particularly mixtures of tributyl phosphate and tricresyl phosphate, and mixtures of isocetyl diphenyl phosphate and 2-ethylhexyl diphenyl phosphate.
[00411] In one embodiment, the phosphate esters useful as thermal stabilizers in the invention include but are not limited to, at least one of the following: trialkyl phosphates, triaryl phosphates, alkyl diaryl phosphates, and mixed alkyl aryl phosphates. [00412] In one embodiment, the phosphate esters useful as thermal stabilizers in the invention include but are not limited to, at least one of the following: triaryl phosphates, alkyl diaryl phosphates, and mixed alkyl aryl phosphates. [00413] In one embodiment, the phosphate esters useful as thermal stabilizers in the invention include but are not limited to, at least one of the following: triaryl phosphates and mixed alkyl aryl phosphates.
[00414] In one embodiment, at least one thermal stabilizer useful in the invention comprises, but is not limited to, triaryl phosphates, such as, for example, triphenyl phosphate. In one embodiment, at least one one thermal stabilizer comprises, but is not limited to Merpol A. In one embodiment, at least one thermal stabilizer useful in the invention comprises, but is not limited to, at least one of triphenyl phosphate and Merpol A. Merpol A is a phosphate ester commercially available from Stepan Chemical Co and/or E.I. duPont de Nemours & Co. The CAS Registry number for Merpol A is believed to be CAS Registry # 37208-27-8.
[00415] In one embodiment, the polyester compositions and/or processes of the invention may comprise 2-ethylhexyl diphenyl phosphate. [00416] The term "thermal stabilizer" is intended to include the reaction product(s) thereof. While the term "thermal stabilizer" is used throughout, this invention is not intended to be limited to any particular theory of operation. [00417] The term "reaction product" as used in connection with the thermal stabilizers of the invention refers to any product of a polycondensation or esterification reaction between the thermal stabilizer and any of the monomers used in making the polyester as well as the product of a polycondensation or esterification reaction between the catalyst and any other type of additive. [00418] When phosphorus is added to the polyesters and/or polyester compositions and/or process of making the polyesters of the invention, it is added in the form of a phosphorus compound, for example, at least one phosphate ester(s). The amount of phosphorus compound(s), (for example, at least one phosphate ester), is added to the polyesters of the invention and/or polyester compositions of the invention and/or processes of the invention can be measured in the form of phosphorus atoms present in the final polyester, for example, by weight measured in ppm.
[00419] Amounts of thermal stabilizer added during polymerization or post manufacturing can include but are not limited to: 1 to 5000 ppm; 1 to 1000 ppm, 1 to 900 ppm, 1 to 800 ppm, 1 to 700 ppm. 1 to 600 ppm, 1 to 500 ppm, 1 to 400 ppm, 1 to 350 ppm, 1 to 300 ppm, 1 to 250 ppm, 1 to 200 ppm, 1 to 150 ppm, 1 to 100 ppm; 10 to 5000 ppm; 10 to 1000 ppm, 10 to 900 ppm. 10 to 800 ppm, 10 to 700 ppm. 10 to 600 ppm, 10 to 500 ppm, 10 to 400 ppm, 10 to 350 ppm, 10 to 300 ppm, 10 to 250 ppm, 10 to 200 ppm, 10 to 150 ppm, 10 to 100 ppm; based on the total weight of the polyester composition.
[00420] In one embodiment, amounts of the phosphate ester of the invention added during polymerization are chosen from the following: 1 to 5000 ppm; 1 to 1000 ppm, 1 to 900 ppm, 1 to 800 ppm, 1 to 700 ppm. 1 to 600 ppm, 1 to 500 ppm, 1 to 400 ppm, 1 to 350 ppm, 1 to 300 ppm, 1 to 250 ppm, 1 to 200 ppm, 1 to 150 ppm, 1 to 100 ppm; 1 to 60 ppm; 2 to 5000 ppm; 2 to 1000 ppm, 2 to 900 ppm, 2 to 800 ppm, 2 to 700 ppm. 2 to 600 ppm, 2 to 500 ppm, 2 to 400 ppm, 2 to 350 ppm, 2 to 300 ppm, 2 to 250 ppm, 2 to 200 ppm, 2 to 150 ppm, 2 to 100 ppm; 2 to 60 ppm; 2 to 20 ppm, 3 to 5000 ppm; 3 to 1000 ppm, 3 to 900 ppm, 3 to 800 ppm, 3 to 700 ppm. 3 to 600 ppm, 3 to 500 ppm, 3 to 400 ppm, 3 to 350 ppm, 3 to 300 ppm, 3 to 250 ppm, 3 to 200 ppm, 3 to 150 ppm, 3 to 100 ppm; 3 to 60 ppm; 3 to 20 ppm, 4 to 5000 ppm; 4 to 1000 ppm, 4 to 900 ppm, 4 to 800 ppm, 4 to 700 ppm, 4 to 600 ppm, 4 to 500 ppm, 4 to 400 ppm, 4 to 350 ppm, 4 to 300 ppm, 4 to 250 ppm, 4 to 200 ppm, 4 to 150 ppm, 4 to 100 ppm; 4 to 60 ppm; 4 to 20 ppm, 5 to 5000 ppm; 5 to 1000 ppm, 5 to 900 ppm, 5 to 800 ppm, 5 to 700 ppm, 5 to 600 ppm, 5 to 500 ppm, 5 to 400 ppm, 5 to 350 ppm, 5 to 300 ppm, 5 to 250 ppm, 5 to 200 ppm, 5 to 150 ppm, 5 to 100 ppm; 5 to 60 ppm; 5 to 20 ppm, 6 to 5000 ppm; 6 to 1000 ppm, 6 to 900 ppm, 6 to 800 ppm, 6 to 700 ppm, 6 to 600 ppm, 6 to 500 ppm, 6 to 400 ppm, 6 to 350 ppm, 6 to 300 ppm, 6 to 250 ppm, 6 to 200 ppm, 6 to 150 ppm, 6 to 100 ppm; 6 to 60 ppm; 6 to 20 ppm, 7 to 5000 ppm; 7 to 1000 ppm, 7 to 900 ppm, 7 to 800 ppm, 7 to 700 ppm, 7 to 600 ppm, 7 to 500 ppm, 7 to 400 ppm, 7 to 350 ppm, 7 to 300 ppm, 7 to 250 ppm, 7 to 200 ppm, 7 to 150 ppm, 7 to 100 ppm; 7 to 60 ppm; 7 to 20 ppm, 8 to 5000 ppm; 8 to 1000 ppm, 8 to 900 ppm, 8 to 800 ppm, 8 to 700 ppm, 8 to 600 ppm, 8 to 500 ppm, 8 to 400 ppm, 8 to 350 ppm, 8 to 300 ppm, 8 to 250 ppm, 8 to 200 ppm, 8 to 150 ppm, 8 to 100 ppm; 8 to 60 ppm; 8 to 20 ppm, 9 to 5000 ppm; 9 to 1000 ppm, 9 to 900 ppm, 9 to 800 ppm, 9 to 700 ppm, 9 to 600 ppm, 9 to 500 ppm, 9 to 400 ppm, 9 to 350 ppm, 9 to 300 ppm, 9 to 250 ppm, 9 to 200 ppm, 9 to 150 ppm, 9 to 100 ppm; 9 to 60 ppm; 9 to 20 ppm, 10 to 5000 ppm; 10 to 1000 ppm, 10 to 900 ppm, 10 to 800 ppm, 10 to 700 ppm. 10 to 600 ppm, 10 to 500 ppm, 10 to 400 ppm, 10 to 350 ppm, 10 to 300 ppm, 10 to 250 ppm, 10 to 200 ppm, 10 to 150 ppm, 10 to 100 ppm, 10 to 60 ppm, 10 to 20 ppm, 50 to 5000 ppm, 50 to 1000 ppm, 50 to 900 ppm, 50 to 800 ppm, 50 to 700 ppm, 50 to 600 ppm, 50 to 500 ppm, 50 to 400 ppm, 50 to 350 ppm, 50 to 300 ppm, 50 to 250 ppm, 50 to 200 ppm, 50 to 150 ppm, 50 to 100 ppm; 50 to 80 ppm, 100 to 5000 ppm, 100 to 1000 ppm, 100 to 900 ppm, 100 to 800 ppm, 100 to 700 ppm, 100 to 600 ppm, 100 to 500 ppm, 100 to 400 ppm, 100 to 350 ppm, 100 to 300 ppm, 100 to 250 ppm, 100 to 200 ppm, 100 to 150 ppm; 150 to 5000 ppm, 150 to 1000 ppm, 150 to 900 ppm, 150 to 800 ppm, 150 to 700 ppm, 150 to 600 ppm, 150 to 500 ppm, 150 to 400 ppm, 150 to 350 ppm, 150 to 300 ppm, 150 to 250 ppm, 150 to 200 ppm, 200 to 5000 ppm, 200 to 1000 ppm, 200 to 900 ppm, 200 to 800 ppm, 200 to 700 ppm, 200 to 600 ppm, 200 to 500 ppm, 200 to 400 ppm, 200 to 350 ppm, 200 to 300 ppm, 200 to 250 ppm, 250 to 5000 ppm, 250 to 1000 ppm, 250 to 900 ppm, 250 to 800 ppm, 250 to 700 ppm, 250 to 600 ppm, 250 to 500 ppm, 250 to 400 ppm, 250 to 350 ppm, 250 to 300 ppm, 500 to 5000 ppm, 300 to 1000 ppm, 300 to 900 ppm, 300 to 800 ppm, 300 to 700 ppm, 300 to 600 ppm, 300 to 500 ppm, 300 to 400 ppm, 300 to 350 ppm, 350 to 5000 ppm, 350 to 1000 ppm, 350 to 900 ppm, 350 to 800 ppm, 350 to 700 ppm, 350 to 600 ppm, 350 to 500 ppm, 350 to 400 ppm; based on the total weight of the polyester composition and as measured in the form of phosphorus atoms in the final polyester.
[00421] The invention further relates to a polymer blend. The blend comprises: (a) from 5 to 95 weight % of at least one of the polyesters described above; and (b) from 5 to 95 weight % of at least one of the polymeric components.
[00422] Suitable examples of the polymeric components include, but are not limited to, nylon; polyesters different than those described herein; polyamides such as ZYTEL® from DuPont; polystyrene; polystyrene copolymers; styrene acrylonitrile copolymers; acrylonitrile butadiene styrene copolymers; poly(methylmethacrylate); acrylic copolymers; poly(ether-imides) such as ULTEM® (a poly(ether-imide) from General Electric); polyphenylene oxides such as poly(2,6-dimethylphenylene oxide) or poly(phenylene oxide)/polystyrene blends such as NORYL 1000® (a blend of poly(2,6-dimethylphenylene oxide) and polystyrene resins from General Electric); polyphenylene sulfides; polyphenylene sulfide/sulfones; poly(ester-carbonates); polycarbonates such as LEXAN® (a polycarbonate from General Electric); polysulfones; polysulfone ethers; and poly(ether-ketones) of aromatic dihydroxy compounds; or mixtures of any of the foregoing polymers. The blends can be prepared by conventional processing techniques known in the art, such as melt blending or solution blending. In one embodiment, polycarbonate is not present in the polyester composition. If polycarbonate is used in a blend in the polyester compositions of the invention, the blends can be visually clear. However, polyester compositions useful in the invention also contemplate the exclusion of polycarbonate as well as the inclusion of polycarbonate.
[00423] Polycarbonates useful in the invention may be prepared according to known procedures, for example, by reacting the dihydroxyaromatic compound with a carbonate precursor such as phosgene, a haloformate or a carbonate ester, a molecular weight regulator, an acid acceptor and a catalyst. Methods for preparing polycarbonates are known in the art and are described, for example, in U.S. Patent 4,452,933, where the disclosure regarding the preparation of polycarbonates is hereby incorporated by reference herein. [00424] Examples of suitable carbonate precursors include, but are not limited to, carbonyl bromide, carbonyl chloride, and mixtures thereof; diphenyl carbonate; a di(halophenyl)carbonate, e.g., di(trichlorophenyl) carbonate, di(tribromophenyl) carbonate, and the like; di(alkylphenyl)carbonate, e.g.. di(tolyl)carbonate; di(naphthyl)carbonate; di(chloronaphthyl)carbonate, and mixtures thereof; and bis-haloformates of dihydric phenols. [00425] Examples of suitable molecular weight regulators include, but are not limited to, phenol, cyclohexanol, methanol, alkylated phenols, such as octylphenol, para-tertiary-butyl-phenol, and the like. In one embodiment, the molecular weight regulator is phenol or an alkylated phenol. [00426] The acid acceptor may be either an organic or an inorganic acid acceptor. A suitable organic acid acceptor can be a tertiary amine and includes, but is not limited to, such materials as pyridine, triethylamine, dimethylaniline, tributylamine, and the like. The inorganic acid acceptor can be either a hydroxide, a carbonate, a bicarbonate, or a phosphate of an alkali or alkaline earth metal. [00427] The catalysts used in making the polycarbonates useful in the invention that can be used include, but are not limited to, those that typically aid the polymerization of the monomer with phosgene. Suitable catalysts include, but are not limited to, tertiary amines such as triethylamine, tripropylamine, N, N- dimethylaniline, quaternary ammonium compounds such as, for example, tetraethylammonium bromide, cetyl triethyl ammonium bromide, tetra-n- heptylammonium iodide, tetra-n-propyl ammonium bromide, tetramethyl ammonium chloride, tetra-methyl ammonium hydroxide, tetra-n-butyl ammonium iodide, benzyltrimethyl ammonium chloride and quaternary phosphonium compounds such as, for example, n-butyltriphenyl phosphonium bromide and methyltriphenyl phosphonium bromide.
[00428] The polycarbonates useful in the polyester compositions of the invention also may be copolyestercarbonates such as those described in U.S. Patents 3,169,121 ; 3,207,814; 4,194,038; 4,156,069; 4,430,484, 4,465,820. and 4,981,898, where the disclosure regarding copolyestercarbonates from each of the U.S. Patents is incorporated by reference herein. [00429] Copolyestercarbonates useful in this invention can be available commercially and/or may be prepared by known methods in the art. For example, they can be typically obtained by the reaction of at least one dihydroxyaromatic compound with a mixture of phosgene and at least one dicarboxylic acid chloride, especially isophthaloyl chloride, terephthaloyl chloride, or both. [00430] In addition, the polyester compositions and the polymer blend compositions useful in the invention may also contain from 0.01 to 25% by weight of the overall composition common additives such as colorants, dyes, mold release agents, flame retardants, plasticizers, nucleating agents, stabilizers, including but not limited to, UV stabilizers, thermal stabilizers and/or reaction products thereof, fillers, and impact modifiers. Examples of typical commercially available impact modifiers well known in the art and useful in this invention include, but are not limited to, ethylene/propylene terpolymers, functionalized polyolefins such as those containing methyl acrylate and/or glycidyl methacrylate, styrene-based block copolymeric impact modifiers, and various acrylic core/shell type impact modifiers. Residues of such additives are also contemplated as part of the polyester composition
[00431] Reinforcing materials may be useful in the compositions of this invention. The reinforcing materials may include, but are not limited to, carbon filaments, silicates, mica, clay, talc, titanium dioxide, Wollastonite, glass flakes, glass beads and fibers, and polymeric fibers and combinations thereof. In one embodiment, the reinforcing materials include glass, such as, fibrous glass filaments, mixtures of glass and talc, glass and mica, and glass and polymeric fibers.
[00432] Suitable catalysts for use in the processes of the invention to make the polyesters useful in the invention include at least one tin compound. The polyester compositions of the invention may also comprise at least one of the tin compounds useful in the processes of the invention. Other catalysts could possibly be used in the invention in combination with the at least one tin compound Other catalysts may include, but are not limited to, those based on titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds, and an aluminum compound with lithium hydroxide or sodium hydroxide. In one embodiment, the catalyst can be a combination of at least one tin compound and at least one titanium compound. [00433] Catalyst amounts can range from 10 ppm to 20,000 ppm or 10 tolO.OOO ppm, or 10 to 5000 ppm or 10 to 1000 ppm or 10 to 500 ppm, or 10 to 300 ppm or 10 to 250 ppm based on the catalyst metal and based on the weight of the final polymer. The process can be carried out in either a batch or continuous process. In one embodiment, the catalyst is a tin compound. In one embodiment, the catalyst is solely a tin compound. In one embodiment, the tin compound can be used in either the esterification reaction or the polycondensation reaction or both reactions. In another embodiment, the catalyst is solely a tin compound useful in the polyesters useful in the invention and/or the processes of making the polyesters of the invention. In one embodiment, the catalyst comprises a tin compound used in the esterification reaction. Generally, in one embodiment, the tin compound catalyst is used in amounts of from about 0.005% to about 0.2% based on the weight of the dicarboxylic acid or dicarboxylic acid ester. Generally, in one embodiment, less than about 700 ppm elemental tin based on polyester weight should be present as residue in the polyester based on the total weight of the polyester.
[00434] When tin is added to the polyesters and/or polyester compositions and/or process of making the polyesters of the invention, it is added to the process of making the polyester in the form of a tin compound. The amount of the tin compound added to the polyesters of the invention and/or polyester compositions of the invention and/or processes of the invention can be measured in the form of tin atoms present in the final polyester, for example, by weight measured in ppm.
[00435] In another embodiment, the catalyst is solely a tin compound used in the esterification reaction in the amount of 10 ppm to 20,000 ppm or 10 to10,000 ppm, or 10 to 5000 ppm or 10 to 4500 ppm or 10 to 4000 ppm or 10 to 3500 ppm or 10 to 3000 ppm or 10 to 2500 ppm or 10 to 2000 ppm or or 10 to 1500 ppm or 10 to 1000 ppm or 10 to 500 ppm, or 10 to 300 ppm or 10 to 250 ppm or 15 ppm to 20,000 ppm or 15 to10,000 ppm, or 15 to 5000 ppm or or 15 to 4500 ppm or 15 to 4000 ppm or 15 to 3500 ppm or 15 to 3000 ppm or 15 to 2500 ppm or 15 to 2000 ppm or or 15 to 1500 ppm or 15 to 1000 ppm or 15 to 500 ppm, or 15 to 400 ppm or 15 to 300 ppm or 15 to 250 ppm or 20 ppm to 20,000 ppm or 20 to10,000 ppm, or 20 to 5000 ppm or or 20 to 4500 ppm or 20 to 4000 ppm or 20 to 3500 ppm or 20 to 3000 ppm or 20 to 2500 ppm or 20 to 2000 ppm or or 20 to 1500 ppm or 20 to 1000 ppm or 20 to 500 ppm, or 20 to 300 ppm or 20 to 250 ppm 25 ppm to 20,000 ppm or 25 to10,000 ppm, or 25 to 5000 ppm or or 25 to 4500 ppm or 25 to 4000 ppm or 25 to 3500 ppm or 25 to 3000 ppm or 25 to 2500 ppm or 25 to 2000 ppm or or 25 to 1500 ppm or 25 to 1000 ppm or 25 to 500 ppm, or 25 to 400 ppm, or 25 to 300 ppm or 25 to 250 ppm or 30 ppm to 20,000 ppm or 30 to10,000 ppm, or 30 to 5000 ppm or 30 to 4500 ppm or 30 to 4000 ppm or 30 to 3500 ppm or 30 to 3000 ppm or 30 to 2500 ppm or 30 to 2000 ppm or or 30 to 1500 ppm pr 30 to 1000 ppm or 30 to 500 ppm, or 30 to 300 ppm or 30 to 250 ppm or 35 ppm to 20,000 ppm or 35 to10,000 ppm, or 35 to 5000 ppm or 35 to 4500 ppm or 35 to 4000 ppm or 35 to 3500 ppm or 35 to 3000 ppm or 35 to 2500 ppm or 35 to 2000 ppm or or 35 to 1500 ppm or 35 to 1000 ppm or 35 to 500 ppm, or 35 to 300 ppm or 35 to 250 ppm or 40 ppm to 20,000 ppm or 40 to10,000 ppm, or 40 to 5000 ppm or or 40 to 4500 ppm or 40 to 4000 ppm or 40 to 3500 ppm or 40 to 3000 ppm or 40 to 2500 ppm or 40 to 2000 ppm or or 40 to 1500 ppm or 40 to 1000 ppm or 40 to 500 ppm, or 40 to 300 ppm or 40 to 250 ppm or 40 to 200 ppm or 45 ppm to 20,000 ppm or 45 to10,000 ppm, or 45 to 5000 ppm or 45 to 4500 ppm or 45 to 4000 ppm or 45 to 3500 ppm or 45 to 3000 ppm or 45 to 2500 ppm or 45 to 2000 ppm or 45 to 1500 ppm or 45 to 1000 ppm or 45 to 500 ppm, or 45 to 300 ppm or 45 to 250 ppm or 50 ppm to 20,000 ppm or 50 to10,000 ppm, or 50 to 5000 ppm or 50 to 4500 ppm or 50 to 4000 ppm or 50 to 3500 ppm or 50 to 3000 ppm or 50 to 2500 ppm or 50 to 2000 ppm or or 50 to 1500 ppm or 50 to 1000 ppm or 50 to 500 ppm, or 50 to 300 ppm or 50 to 250 ppm or 50 to 200 ppm or 50 to 150 ppm 50 to 125 ppm, based on the weight of the final polyester, as measured in the form of tin atoms in the final polyester. [00436] In another embodiment, the polyesters of the invention can be prepared using at least one tin compound as catalyst. For example, see U.S. Pat. No. 2,720,507, where the portion concerning tin catalysts is incorporated herein by reference. These catalysts are tin compounds containing at least one organic radical. These catalysts include compounds of both divalent or tetravalent tin which have the general formulas set forth below:
A. M2(Sn(OR)4) B. MH(Sn(OR)4)
C. M'(Sn(OR)4)
D. M'(HSn(OR)4)2
E. M2(Sn(OR)6)
F. MH(Sn(OR)6)
G. M'(Sn(0R)6)
H. M'(HSn(OR)6)2
I. Sn(OR)2
J. Sn(OR)4
K. SnR'z
L. SΏR'Λ
M. R'2SnO
N.
Figure imgf000249_0001
o.
Figure imgf000250_0001
P.
R1
\ /cι
Sn R- χ XC.
Q
Figure imgf000250_0002
wherein M is an alkali metal, e.g. lithium, sodium, or potassium, M' is an alkaline earth metal such as Mg, Ca or Sr, each R represents an alkyl radical containing from 1 to 8 carbon atoms, each R1 radical represents a substituent selected from those consisting of alkyl radicals containing from 1 to 8 carbon atoms (i. e. R radicals) and aryl radicals of the benzene series containing from 6 to 9 carbon atoms (e.g. phenyl, tolyl, benzyl, phenylethyl, etc., radicals), and Ac represents an acyl radical derived from an organic acid containing from 2 to 18 carbon atoms (e.g. acetyl, butyryl, lauroyl, benzoyl, stearoyl, etc. ).
[00437] The novel bimetallic alkoxide catalysts can be made as described by Meerwein, Ann. 476, 113 (1929). As shown by Meerwein, these catalysts are not merely mixtures of the two metallic alkoxides. They are definite compounds having a salt-like structure. These are the compounds depicted above by the Formulas A through H. Those not specifically described by Meerwein can be prepared by procedures analogous to the working examples and methods set forth by Meerwein.
[00438] The other tin compounds can also be made by various methods such as those described in the following literature: For the preparation of diaryl tin dihalides (Formula P) see Ber. 62, 996 (1929); J. Am. Chem. Soc. 49, 1369 (1927). For the preparation of dialkyl tin dihalides (Formula P) see J. Am. Chem. Soc. 47, 2568 (1925) ; CA. 41, 90 (1947). For the preparation of diaryl tin oxides (Formula M) see J. Am. Chem. Soc. 48, 1054 (1926). For the preparation of tetraaryl tin compounds (Formula K) see CA. 32, 5387 (1938). For the preparation of tin alkoxides (Formula J) see CA. 24, 586 (1930). For the preparation of alkyl tin salts (Formula Q) see CA. 31, 4290. For the preparation of alkyl tin compounds (Formula K and L) see CA. 35, 2470 (1941): CA. 33, 5357 (1939). For the preparation of mixed alkyl aryl tin (Formulas K and L) see CA. 31 , 4290 (1937): CA. 38, 331 (1944). For the preparation of other tin compounds not covered by these citations see "Die Chemie der Metal- Organischen Verbindungen." by Krause and V. Grosse, published in Berlin, 1937, by Gebroder-Bomtrager.
[00439] The tin alkoxides (Formulas I and J) and the bimetallic alkoxides (Formulas A through H) contain R substituents which can represent both straight chain and branched chain alkyl radicals, e.g. diethoxide, tetramethoxide, tetrabutoxide, tetra-tert-butoxide, tetrahexoxide, etc.
[00440] The alkyl derivatives (Formulas K and L) contain one or more alkyl radicals attached to a tin atom through a direct C-Sn linkage, e.g. dibutyl tin, dihexyl tin, tetra-butyl tin, tetraethyl tin, tetramethyl tin, dioctyl tin, etc. Two of the tetraalkyl radicals can be replaced with an oxygen atom to form compounds having Formula M, e.g. dimethyl tin oxide, diethyl tin oxide, dibutyl tin oxide, diheptyl tin oxide, etc. In one embodiment, the tin catalyst comprises dimethyl tin oxide.
[00441] Complexes can be formed by reacting dialkyl tin oxides with alkali metal alkoxides in an alcohol solution to form compounds having Formula N, which compounds are especially useful catalysts, e.g. react dibutyl tin oxide with sodium ethoxide, etc. This formula is intended to represent the reaction products described. Tin compounds containing alkyl and alkoxy radicals are also useful catalysts (see Formula O), e.g. diethyl tin diethoxide, dibutyl tin dibutoxide, dihexyl tin dimethoxide, etc.
[00442] Salts derived from dialkyl tin oxides reacted with carboxylic acids or hydrochloric acid are also of particular value as catalysts; see Formulas P and Q. Examples of these catalytic condensing agents include dibutyl tin diacetate, diethyl tin dibutyrate, dibutyl tin dilauroate, dimethyl tin dibenzoate, dibutyl tin dichloride, diethyl tin dichloride, dioctyl tin dichloride, dihexyl tin distearate, etc. [00443] The tin compounds having Formulas K, L and M can be prepared wherein one or more of the R' radicals represents an aryl radical of the benzene series, e.g. phenyl, tolyl, benzyl, etc. Examples include diphenyl tin, tetraphenyl tin, diphenyl dibutyl tin, ditolyl diethyl tin, diphenyl tin oxide, dibenzyl tin, tetrabenzyl tin, di([B-phenylethyl) tin oxide, dibenzyl tin oxide, etc. [00444] Examples of catalysts useful in the present invention include, but are not limited to, one of more of the following: butyltin tris-2-ethylhexanoate, dibutyltin diacetate, dibutyltin oxide, and dimethyl tin oxide. [00445] In one embodiment, catalysts useful in the present invention include, but are not limited to, one or more of the following: butyltin tris-2-ethylhexanoate, dibutyltin diacetate, dibutyltin oxide, and dimethyl tin oxide. [00446] Processes for preparing polyesters using tin-based catalysts are well known and described in the aforementioned U.S. Pat. No. 2,720, 507. [00447] The polyester portion of the polyester compositions useful in the invention can be made by processes known from the literature such as, for example, by processes in homogenous solution, by transesterification processes in the melt, and by two phase interfacial processes. Suitable methods include, but are not limited to, the steps of reacting one or more dicarboxylic acids with one or more glycols at a temperature of 1000C to 315°C at a pressure of 0.1 to 760 mm Hg for a time sufficient to form a polyester. See U.S. Patent No. 3,772,405 for methods of producing polyesters, the disclosure regarding such methods is hereby incorporated herein by reference. [00448] The polyester in general may be prepared by condensing the dicarboxylic acid or dicarboxylic acid ester with the glycol in the presence of the tin catalyst described herein at elevated temperatures increased gradually during the course of the condensation up to a temperature of about 225°-310° C, in an inert atmosphere, and conducting the condensation at low pressure during the latter part of the condensation, as described in further detail in U.S. Pat. No. 2, 720, 507 incorporated herein by reference.
[00449] In another aspect, this invention relates to a process for preparing LCD films or sheets comprising preparing copolyesters of the invention. In one embodiment, the process relates to preparing copolyesters comprising terephthalic acid, 2,2,4,4-tetramethyl-i ,3-cyclobutanediol, and 1 ,4- cyclohexanedimethanol. This process comprises the steps of:
(A) heating a mixture comprising the monomers useful in the polyesters of the invention in the presence of at least one tin catalyst at a temperature of 150 to 2500C for a time sufficient to produce an initial polyester;
(B) polycondensing the product of Step (A) by heating it at a temperature of 240 to 3200C for 1 to 6 hours; and
(C) removing any unreacted glycols. In another embodiment, the process relates to preparing LCD films or sheets comprising preparing copolyesters comprising terephthalic acid, 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol, and 1 ,4-cyclohexanedimethanol which comprises the steps of:
(A) heating a mixture comprising the monomers useful in the polyesters of the invention in the presence of at least one tin catalyst at a temperature of 150 to 24O0C for a time sufficient to produce an initial polyester;
(B) polycondensing the product of Step (A) by heating it at a temperature of 240 to 3200C for 1 to 6 hours; and
(C) removing any unreacted glycols.
[00450] Reaction times for the esterification Step (A) are dependent upon the selected temperatures, pressures, and feed mole ratios of glycol to dicarboxylic acid. At least one phosphorus compound, for example, at least one phosphate ester, can be added to Step (A), Step (B) and/or Steps (A) and (B). [00451] In one embodiment, step (A) can be carried out until 50% by weight or more of the 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol has been reacted. Step (A) may be carried out under pressure, ranging from 0 psig to 100 psig. The term "reaction product" as used in connection with any of the catalysts useful in the invention refers to any product of a polycondensation or esterification reaction with the catalyst and any of the monomers used in making the polyester as well as the product of a polycondensation or esterification reaction between the catalyst and any other type of additive.
[00452] Typically, Step (B) and Step (C) can be conducted at the same time. These steps can be carried out by methods known in the art such as by placing the reaction mixture under a pressure ranging, from 0.002 psig to below atmospheric pressure, or by blowing hot nitrogen gas over the mixture. [00453] In one embodiment, the invention comprises a process for making LCD films or sheets comprising making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 150°C to 2500C, under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4 ,4-tetramethyl-1.3- cyclobutanediol residues; and (ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.0-1.5/1.0; wherein the mixture in Step (I) is heated in the presence of at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide; and
(II) heating the product of Step (I) at a temperature of 2300C to 3200C for 1 to 6 hours, under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 ton* absolute, to form a final polyester; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; and wherein the total mole % of the glycol component of the final polyester is 100 mole %.
[00454] In one embodiment, the invention comprises a process for making LCD films or sheets comprising making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 1500C to 2500C, under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising: (i) 1 to 99 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyctohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.0-1.5/1.0; wherein the mixture in Step (I) is heated in the presence of at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide; and
(II) heating the product of Step (I) at a temperature of 2300C to 3200C for 1 to 6 hours, under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, to form a final polyester; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein at least one phosphorus compound, for example, at least one phosphate ester, is added to Step (I), Step (II) and/or Steps (I) and (II); and wherein the addition of the phosphorus compound(s), for example, at least one phosphate ester, results in a weight ratio of total tin atoms to total phosphorus atoms in the final polyester useful in the invention of 2-10:1. [00455] In one embodiment, the invention comprises a process for making LCD films or sheets comprising making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 1500C to 2000C, under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising: (i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4 ,4-tetramethyH ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.0-1.5/1.0; wherein the mixture in Step (I) is heated in the presence of at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide; and
(II) heating the product of Step (I) at a temperature of 2300C to 3200C for 1 to 6 hours, under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, to form a final polyester; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; and wherein the total mole % of the glycol component of the final polyester is 100 mole %.
[00456] In one embodiment, the invention comprises a process for making LCD films or sheets comprising making any of the polyesters useful in the invention comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 15O0C to 2000C, under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising: (i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.0-1.5/1.0; wherein the mixture in Step (I) is heated in the presence of at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide; and
(II) heating the product of Step (I) at a temperature of 2300C to 3200C for 1 to 6 hours, under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, to form a final polyester; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein at least one phosphorus compound, for example, at least one phosphate ester, is added to Step (I), Step (II) and/or Steps (I) and (II); and wherein the addition of the phosphorus compound(s), for example, at least one phosphate ester, results in a weight ratio of total tin atoms to total phosphorus atoms in the final polyester useful in the invention of 2-10:1. [004571 For example, in the previous four paragraphs, at least one phosphorus compound can be added in Step (I), (II) and/or in both Steps (I) and (II) of the process. In one embodiment, the phosphorus compound(s) are added in Step (I). The phosphorus compound(s) can comprise at least one phosphate ester, for example. The thermal stabilizers useful in the invention can comprise at least one phophorus compound.
[00458] In any of the processes of the invention useful in making the polyesters useful in the invention, at least one thermal stabilizer, reaction products thereof, and mixtures thereof can be added either during esterification, polycondensation, or both and/or it can be added post-polymerization. In one embodiment, the thermal stabilizer useful in any of the processes of the invention can be added during esterificaton. In one embodiment, if the thermal stabilizer added after both esterification and polycondensation, it is added in the amount of 1 to 2 weight % based on the total weight of the final polyester. In one embodiment, the thermal stabilizer can comprise at least one phosphorus compound useful in the invention. In one embodiment, the thermal stabilizer can comprise at least one phosphate ester. In one embodiment, the thermal stabilizer can comprise at least one phosphorus compound which is added during the esterificaton step. In one embodiment, the thermal stabilizer can comprise at least one phosphate ester, for example, which is added during the esterificaton step. [00459] It is believed that any of the processes of making the polyesters described herein may be used to make any of the polyesters useful in the invention.
[00460] Reaction times for the esterification Step (I) are dependent upon the selected temperatures, pressures, and feed mole ratios of glycol to dicarboxylic acid.
[00461] In one embodiment, the pressure used in Step (II) of any of the processes of the invention consists of at least one pressure chosen from 20 torr absolute to 0.02 torr absolute; in one embodiment, the pressure used in Step (II) of any of the processes of the invention consists of at least one pressure chosen from 10 torr absolute to 0.02 torr absolute; in one embodiment, the pressure used in Step (II) of any of the processes of the invention consists of at least one pressure chosen from 5 torr absolute to 0.02 torr absolute; in one embodiment, the pressure used in Step (II) of any of the processes of the invention consists of at least one pressure chosen from 3 torr absolute to 0.02 torr absolute; in one embodiment, the pressure used in Step (II) of any of the processes of the invention consists of at least one pressure chosen from 20 torr absolute to 0.1 torr absolute; in one embodiment, the pressure used in Step (II) of any of the processes of the invention consists of at least one pressure chosen from 10 torr absolute to 0.1 torr absolute; in one embodiment, the pressure used in Step (II) of any of the processes of the invention consists of at least one pressure chosen from 5 torr absolute to 0.1 torr absolute; in one embodiment, the pressure used in Step (II) of any of the processes of the invention consists of at least one pressure chosen from 3 torr absolute to 0.1 torr absolute.
[00462] In one embodiment, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.0- 1.5/1.0; in one embodiment, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.01- 1.5/1.0; in one embodiment, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.01- 1.3/1.0; in one embodiment, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.01- 1.2/1.0; in one embodiment, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.01- 1.15/1.0; in one embodiment, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.01- 1.01-1.10/1.0; in one embodiment, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.03-1.5/1.0; in one embodiment, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.03-1.3/1.0; in one embodiment, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.03-1.2/1.0; in one embodiment, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.03-1.15/1.0; in one embodiment, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.03-1.10/1.0; in one embodiment, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.05-1.5/1.0; in one embodiment, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.05-1.3/1.0; in one embodiment, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.05-1.2/1.0; in one embodiment, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.05-1.15/1.0; and. in one embodiment, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.05-1.15/1.0; in one embodiment, the molar ratio of glycol component/dicarboxylic acid component added in Step (I) of any of the processes of the invention is 1.05-1.10/1.0.
[00463] In any of the process embodiments for making the polyesters useful in the invention, the heating time of Step (II) may be from 1 to 12 hours or 1 to 6 hours or 1 to 5 hours or 1 to 4 hours or 1 to 3 hours or 1.5 to 3 hours or 1 to 2 hours. In one embodiment, the heating time of Step (II) can be from 1.5 to 3 hours.
[00464] In any of the process embodiments for making the polyesters useful in the invention, the esterification temperature(s) can be at at least one temperature from 1500C to 2500C or from 150°C to 245°C or from 1500C to 240°C or from 1500C to 235°C or from 150°C to 2300C or from 1500C to 225°C or from 1500C to 220°C or from 150°C to 215°C or from 1500C to 2100C or from 1500C to 2050C or from 150°C to 200°C or from 155°C to 2500C or from 155°C to 245°C or from 155°C to 240°C or from 155°C to 235°C or from 155°C to 2300C or from 155°C to 225°C or from 155°C to 2200C or from 155°C to 215°C or from 155°C to 2100C or from 155°C to 205°C or from 155°C to 2000C or from 160°C to 250°C or from 1600C to 245°C or from 1600C to 240°C or from 1600C to 235°C or from 1600C to 230°C or from 1600C to 225°C or from 160°C to 2200C or from 1600C to 215°C or from 1600C to 210°C or from 1600C to 2050C or from 1600C to 200°C or from 165°C to 2500C or from 165°C to 245°C or from 165°C to 2400C or from 165°C to 235°C or from 165°C to 230°C or from 165°C to 225°C or from 165°C to 2200C or from 165°C to 2150C or from 165°C to 210°C or from 165°C to 2050C or from 165°C to 2000C or from 170°C to 250°C or from 170°C to 245°C or from 1700C to 24O0C or from 1700C to 235°C or from 170°C to 2300C or from 1700C to 225°C or from 170°C to 2200C or from 170°C to 215°C or from 1700C to 210°C or from 170°C to 205°C or from 170°C to 2000C or from 175°C to 250°C or from 175°C to 245°C or from 175°C to 2400C or from 175°C to 235°C or from 175°C to 230°C or from 175°C to 225°C or from 175°C to 220°C or from 175°C to 215°C or from 175°C to 2100C or from 175°C to 2050C or from 175°C to 2000C or from 1800C to 2500C or from 1800C to 245°C or from 180°C to 2400C or from 1800C to 235°C or from 1800C to 230°C or from 1800C to 225°C or from 1800C to 220°C or from 180°C to 215°C or from 1800C to 2100C or from 1800C to 2050C or from 1800C to 2000C
[00465] In any of the process embodiments for making the polyesters useful in the invention, the polycondensation temperature(s) can be at at least one temperature from 2300C to 320°C or from 2300C to 315°C or from 230°C to 3100C or from 2300C to 3050C or from 2300C to 300°C or from 2300C to 295°C or from 230°C to 285°C or from 230°C to 2800C or from 230°C to 275°C or from 2300C to 270°C or from 2300C to 265°C or from 230°C to 260°C or from 235°C to 3200C or from 235°C to 315°C or from 235°C to 310°C or from 235°C to 305°C or from 235°C to 3000C or from 235°C to 295°C or from 235°C to 285°C or from 235°C to 2800C or from 235°C to 275°C or from 235°C to 2700C or from 235°C to 2650C or from 235°C to 2600C or from 2400C to 3200C or from 2400C to 315°C or from 2400C to 310°C or from 2400C to 305°C or from 2400C to 3000C or from 2400C to 295°C or from 2400C to 285°C or from 240°C to 280°C or from 2400C to 275°C or from 2400C to 2700C or from 240°C to 265°C or from 240°C to 2600C or from 245°C to 320°C or from 245°C to 315°C or from 245°C to 3100C or from 245°C to 305°C or from 245°C to 300°C or from 245°C to 295°C or from 245°C to 285°C or from 245°C to 2800C or from 245°C to 275°C or from 245°C to 270°C or from 245°C to 265°C or from 245°C to 260°C or from 2500C to 3200C or from 2500C to 315°C or from 2500C to 310°C or from 2500C to 3050C or from 250°C to 3000C or from 2500C to 295°C or from 2500C to 285°C or from 2500C to 2800C or from 250°C to 275°C or from 250°C to 2700C or from 2500C to 265°C or from 250°C to 2600C or from 255°C to 3200C or from 255°C to 315°C or from 255°C to 3100C or from 255°C to 305βC or from 255°C to 300°C or from 255°C to 295°C or from 255°C to 285°C or from 255°C to 280°C or from 255°C to 275°C or from 255°C to 270°C or from 255°C to 265°C or from 255°C to 260°C or from 2600C to 3200C or from 2600C to 315°C or from 2600C to 3100C or from 2600C to 3050C or from 2600C to 300°C or from 2600C to 295°C or from 260°C to 285°C or from 2600C to 2800C or from 2600C to 275°C or from 2600C to 270°C. [00466] In one embodiment, the addition of the phosphate ester(s) in the process(es) of the invention can result in a weight ratio of total tin atoms to total phosphorus atoms in the final polyesters useful in the invention of 2-10:1. In one embodiment, the addition of the phosphate ester(s) in the process(es) can result in a weight ratio of total tin atoms to total phosphorus atoms in the final polyester of 5-9:1. In one embodiment, the addition of the phosphate ester(s) in the process(es) can result in a weight ratio of total tin atoms to total phosphorus atoms in the final polyester of 6-8:1. In one embodiment, the addition of the phosphate ester(s) in the process(es) can result in a weight ratio of total tin atoms to total phosphorus atoms in the final polyester of 7:1. For example, the weight of tin atoms and phosphorus atoms present in the final polyester can be measured in ppm and can result in a weight ratio of total tin atoms to total phosphorus atoms in the final polyester of any of the aforesaid weight ratios. [00467] In one embodiment, the amount of tin atoms in the final polyesters useful in the invention can be from 15 to 400 ppm tin atoms based on the weight of the final polyester.
[00468] In one embodiment, the amount of tin atoms in the final polyesters useful in the invention can be from 25 to 400 ppm tin atoms based on the weight of the final polyester.
[00469] In one embodiment, the amount of tin atoms in the final polyesters useful in the invention can be from 40 to 200 ppm tin atoms based on the weight of the final polyester. [00470] In one embodiment, the amount of tin atoms in the final polyesters useful in the invention can be from 50 to 125 ppm tin atoms based on the weight of the final polyester.
[00471] In one embodiment, the amount of phosphorus atoms in the final polyesters useful in the invention can be from 1 to 100 ppm phosphorus atoms based on the weight of the final polyester.
[00472] In one embodiment, the amount of phosphorus atoms in the final polyesters useful in the invention can be from 4 to 60 ppm phosphorus atoms based on the weight of the final polyester.
[00473] In one embodiment, the amount of phosphorus atoms in the final polyesters useful in the invention can be from 6 to 20 ppm phosphorus atoms based on the weight of the final polyester.
[00474] In one embodiment, the amount of phosphorus atoms in the final polyesters useful in the invention can be from 1 to 100 ppm phosphorus atoms based on the weight of the final polyester and the amount of tin atoms in the final polyester can be from 15 to 400 ppm tin atoms based on the weight of the final polyester.
[00475] In one embodiment, the amount of phosphorus atoms in the final polyesters useful in the invention can be from 1 to 100 ppm phosphorus atoms based on the weight of the final polyester and the amount of tin atoms in the final polyester can be from 25 to 400 ppm tin atoms based on the weight of the final polyester.
[00476] In one embodiment, the amount of phosphorus atoms in the final polyesters useful in the invention can be from 4 to 60 ppm phosphorus atoms based on the weight of the final polyester and the amount of tin atoms in the final polyester can be from 40 to 200 ppm tin atoms based on the weight of the final polyester.
[00477] In one embodiment, the amount of phosphorus atoms in the final polyesters useful in the invention can be from 6 to 20 ppm phosphorus atoms based on the weight of the final polyester and the amount of tin atoms in the final polyester can be from 50 to 125 ppm tin atoms based on the weight of the final polyester. [00478] LCD films and/or sheets useful in the present invention can be of any thickness which would be apparent to one of ordinary skill in the art. In one embodiment, the films(s) of the invention have a thickness of less than 30 mils. In one embodiment, the sheets of the invention have a thickness of no less than 30 mils.
[004791 The invention further relates to the fιlm(s) and/or sheet(s) comprising the polyester compositions of the invention. The methods of forming the polyesters into film(s) and/or sheet(s) are well known in the art. Examples of film(s) and/or sheet(s) of the invention including but not limited to extruded film(s) and/or sheet(s), calendered fιlm(s) and/or sheet(s), compression molded film(s) and/or sheet(s), solution casted film(s) and/or sheet(s). Methods of making film and/or sheet include but are not limited to extrusion, calendering, compression molding, and solution casting.
[00480] The invention further relates to LCD films or sheets described herein. These LCD films or sheets include, but are not limited to, extruded films or sheets, injection molded films or sheets, calendered LCD films or sheets, compression molded LCD films or sheets, and solution casted LCD films or sheets. Methods of making LCD films or sheets include, but are not limited to, extrusion molding, calendering, compression molding, and solution casting. These films or sheets may be made or subjected to further processing such as orientation (uniaxial or biaxial), heat setting, surface treatment, etc. [00481] The invention further relates to LCD films or sheets or plates. The plates, a term used interchangeably with sheets, includes, but is not limited to, light guide plates or wedges. The LCD films, sheets or plates may be used as replacements for mother glass, liquid crystal alignment layers, antireflective film, and/or antiglare film.
[00482] Further examples of potential articles made from film and/or sheet useful in the invention include, but are not limited, to uniaxially stretched film, biaxially stretched film, shrink film (whether or not uniaxially or biaxially stretched), liquid crystal display film (including, but not limited to, d iff user sheets, a component in a brightness enhancing film, retardation films, polarizer protection films, compensation films and protective films), and thermoformed sheets. [00483] Although various polymerizable compositions that are suitable for the manufacture of brightness enhancing films have been described, industry would find advantage in certain formulas having improved properties. [00484] Certain optical products, such as described in U.S. Patent Nos. 5,175,030 and 5,183,597, are commonly referred to as a "brightness enhancing films". These patents are incorporated by reference herein solely for their disclosure of brightness enhancing films, their properties, and methods of preparing them. In general, a brightness enhancing film is a film that enhances the on-axis luminance (referred to as "brightness") of a diffuse lighting device. Displays used in devices such as computers feature a material such as a liquid crystal composition and a light source for back-lighting the material. Films located between the back light and the display have been used to enhance the brightness of the display by controlling the exit angles of light. [00485] Brightness enhancing films are utilized in many electronic products to increase the brightness of a backlit flat panel display such as a liquid crystal display (LCD) including those used in electroluminescent panels, laptop computer displays, word processors, desktop monitors, televisions, videocameras, and automotive and avionic displays. Brightness enhancing films desirably exhibit specific optica! and physical properties. The index of refraction of a brightness enhancing film is related to the brightness gain or "gain" produced. Improved brightness allows the electronic product to operate more efficiently by using less power to light the display, thereby reducing the power consumption, placing a lower heat load on its components, and extending the lifetime of the product. [00486] Brightness enhancing films can be prepared from high index of refraction monomers that are cured or polymerized. See, e.g., U.S. Patent Nos. 5,908,874; 5,932,626; 6,107,364; 6,280,063; and 6,355,754 as well as EP 1 014113 and WO 03/076528. The following patents also disclose brightness enhancing films and/or components useful in their preparation: U.S. Patent Nos. 4542449, 4791540, 4799131, 4883341, 4984144, 5056892, 5094788, 5122905, 5122906, 5161041, 5175030, 5183597, 5217794, 5269995, 5389324, 5594830, 5626800, 5751388, 5771328, 5783120, 5808794, 5825542, 5825543, 5828488, 5858139, 5867316, 5872653, 5882774, 5908874, 5917664, 5919551 , 5962114, 5965247, 5976424, 5991077, 5999239, 6005713, 6018419, 6025897, 6031665, 6052164, 6057961 , 6080467, 6088067, 6088159, 6088163, 6091547, 6101032. 6111696, 6117530, 6124971, 6141149, 6157490, 6179948, 6208466, 6210785, 6256146, 6280063, 6296927, 6307676, 6329046, 6352761 , 6354709, 6355754, 6359170, 6368682, 6449092, 6449093, 6498683, 6515785, 6533959, 6543153, 6574045, 6581286, 6583930, 6613421 , 6627300, 6630970, 6635337, 6641883, 6654170, and 6673275. The patents cited in this paragraph are incorporated by reference herein solely for their disclosure of brightness enhancing films, their properties, and methods of preparing them.
[00487] Examples of extruded articles comprising the polyester compositions useful in this invention include liquid crystal display (LCD) films, including but not limited to, diffuser sheets, compensation films, components in a brightness enhancing film, retardation films, polarizer protection films and protective films for LCDs.
[00488] For the purposes of this invention, the term "wt" means "weight". [00489] The following examples further illustrate how the polyesters of the invention can be made and evaluated, and are intended to be purely exemplary of the invention and are not intended to limit the scope thereof. Unless indicated otherwise, parts are parts by weight, temperature is in degrees C or is at room temperature, and pressure is at or near atmospheric.
EXAMPLES
[00490] The following examples illustrate in general how a polyester is prepared and the effect of using 2,2,4,4-tetramethyl-1 ,3-cyclobutanedioI (and various cis/trans mixtures) on various polyester properties such as toughness, glass transition temperature, inherent viscosity, etc., compared to polyesters comprising 1 ,4-cyclohexanedimethanol and/or ethylene glycol residues, but lacking 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol. Additionally, based on the following examples, the skilled artisan will understand how the thermal stabilizers of the invention can be used in the preparation of polyesters containing them.
Measurement Methods
[00491] The inherent viscosity of the polyesters was determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C, and is reported in dl_/g.
[00492] Unless stated otherwise, the glass transition temperature (T9) was determined using a TA DSC 2920 instrument from Thermal Analyst Instruments at a scan rate of 20°C/min according to ASTM D3418. [00493] The glycol content and the cis/trans ratio of the compositions were determined by proton nuclear magnetic resonance (NMR) spectroscopy. All NMR spectra were recorded on a JEOL Eclipse Plus 600MHz nuclear magnetic resonance spectrometer using either chloroform-trifluoroacetic acid (70-30 volume/volume) for polymers or, for oligomeric samples, 60/40(wt/wt) phenol/ tetrachloroethane with deute rated chloroform added for lock. Peak assignments for 2,2,4,4-tetramethyM ,3-cyclobutanediol resonances were made by comparison to model mono- and dibenzoate esters of 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol. These model compounds closely approximate the resonance positions found in the polymers and oligomers. [00494] The crystallization half-time, Ui2, was determined by measuring the light transmission of a sample via a laser and photo detector as a function of time on a temperature controlled hot stage. This measurement was done by exposing the polymers to a temperature, Tmax, and then cooling it to the desired temperature. The sample was then held at the desired temperature by a hot stage while transmission measurements were made as a function of time. Initially, the sample was visually clear with high light transmission and became opaque as the sample crystallized. The crystallization half-time was recorded as the time at which the light transmission was halfway between the initial transmission and the final transmission. Tmax is defined as the temperature required to melt the crystalline domains of the sample (if crystalline domains are present). The Tmax reported in the examples below represents the temperature at which each sample was heated to condition the sample prior to crystallization half time measurement. The Tmax temperature is dependant on composition and is typically different for each polyester. For example, PCT may need to be heated to some temperature greater than 2900C to melt the crystalline domains. [00495] Density was determined using a gradient density column at 23°C. [00496] The melt viscosity reported herein was measured by using a Rheometrics Dynamic Analyzer (RDA II). The melt viscosity was measured as a function of shear rate, at frequencies ranging from 1 to 400 rad/sec, at the temperatures reported. The zero shear melt viscosity (ηo) is the melt viscosity at zero shear rate estimated by extrapolating the data by known models in the art. This step is automatically performed by the Rheometrics Dynamic Analyzer (RDA II) software.
[00497] The polymers were dried at a temperature ranging from 80 to 1000C in a vacuum oven for 24 hours and injection molded on a Boy 22S molding machine to give 1/8x1 /2x5- inch and 1/4x1/2x5-inch flexure bars. These bars were cut to a length of 2.5 inch and notched down the Vz inch width with a 10-mil notch in accordance with ASTM D256. The average Izod impact strength at 23°C was determined from measurements on 5 specimens.
[00498] In addition, 5 specimens were tested at various temperatures using 50C increments in order to determine the brittle-to-ductile transition temperature. The brittle-to-ductile transition temperature is defined as the temperature at which 50% of the specimens fail in a brittle manner as denoted by ASTM D256. [00499] Color values reported herein are CIELAB L*. a*, and b* values measured following ASTM D 6290-98 and ASTM E308-99, using measurements from a Hunter Lab Ultrascan XE Spectrophotometer (Hunter Associates Laboratory Inc., Reston, VA) with the following parameters: (1) D65 illuminant, (2) 10 degree observer, (3) reflectance mode with specular angle included, (4) large area view, (5) 1" port size. The measurements were performed on polymer granules ground to pass a 6 mm sieve.
[00500] The percent foam in the polyesters of the invention was measured as follows. A 20 mL Headspace Vial supplied by MicroLiter Analytical Supplies, Suwanee, Ga. was placed on laboratory scale, 5 grams of dried polymer was added and the weight was recorded. Water was then carefully added until the vial was full and this weight was then recorded. The difference in weight (wt1) was recorded and used to estimate the vial volume with polymer containing no foam. This value was used for all subsequent runs. For each test, 5 grams of dried polymer sample was added to a clean Headspace Vial. A septum cap was attached to the top of the vial and the vial purged with dry nitrogen gas for approximately one minute. The purge line was removed and a dry nitrogen line equipped with a bubbler was inserted into the septum cap to ensure inert gas at atmospheric (ambient) pressure was maintained in the vial during the heating time. The vial was then placed into a pre-heated 3000C heating block (drilled out for a loose but close fit for vial) and held in the block for 15 minutes. The vial was then removed and air-cooled on a laboratory bench. After the vial was cooled, the vial top was removed and the vial was placed on a laboratory scale and weighed. Once the weight was recorded, water was carefully added to completely fill the vial. In this context, to completely fill the vial means to add water to the top of vial as judged to be the same height as when determining wt1) and the weight recorded. The difference in these weights (wt2) was calculated. By subtracting wt2 from wt1 , the amount of "displaced water" by the foaming of the polymer is determined (wt3 = wt1 - wt2). It was assumed that for this test the density of water is one, which allows these weights to be converted into volumes, V1=wt1 , V2=wt2, and V3=wt3. The "% foam in the polyester" is calculated by the following formula: "% foam in the polymer"= V3/[(5g polymer/Density of dry polyester in g/mL)+ V3]. In this formula, the density of the dry polyesters of the invention comprising about 45 mole % 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol was 1.17 g/mL. This 1.17 g/mL value did not change significantly for the polyesters tested with a composition in the range from 40% to 50% mol TMCD.
The density value for dry polyesters of about 20 mole % TCMD was 1.18 g/mL.
The % Foam is a volume % of void volume in the after-test polymer. A visual grade of the final polymer sample after heating and cooling can also be determined.
[00501] The amount of tin (Sn) in the examples below is reported in part per million (ppm) of metal and was measured by x-ray fluorescence (xrf) using a
PANanalytical Axios Advanced wavelength dispersive x-ray fluorescence spectrometer. The amount of phosphorous is similarly reported as ppm of elemental phosphorus and was also measured by xrf using the same instrument.
[00502] 10-mil films of selected polyester samples were compression molded using a Carver press at 24O0C. Inherent viscosity was measured on these films as described above.
[00503] Unless otherwise specified, the cis/trans ratio of the
1 ,4 cyclohexanedimethanol used in the following examples was approximately
30/70, and could range from 35/65 to 25/75. Unless otherwise specified, the cis/trans ratio of the 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol used in the following examples was approximately 50/50.
[00504] The following abbreviations apply throughout the working examples and figures:
Figure imgf000272_0001
Example 1
[00505] This example illustrates that 2,2,4,4-tetramethyl-1 ,3-cyclobutaπediol is more effective at reducing the crystallization rate of PCT than ethylene glycol or isophthalic acid. In addition, this example illustrates the benefits of 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol on the glass transition temperature and density. [00506] A variety of copolyesters were prepared as described below. These copolyesters were all made with 200 ppm dibutyl tin oxide as the catalyst in order to minimize the effect of catalyst type and concentration on nucleation during crystallization studies. The cis/trans ratio of the 1 ,4-cyclohexanedimethanol was 31/69 while the cis/trans ratio of the 2,2,4,4-tetramethyl-i ,3-cyclobutanediol is reported in Table 1.
[00507] For purposes of this example, the samples had sufficiently similar inherent viscosities thereby effectively eliminating this as a variable in the crystallization rate measurements. [00508] Crystallization half-time measurements from the melt were made at temperatures from 140 to 2000C at 100C increments and are reported in Table 1. The fastest crystallization half-time for each sample was taken as the minimum value of crystallization half-time as a function of temperature, typically occurring around 170 to 1800C. The fastest crystallization half-times for the samples are plotted in Figure 1 as a function of mole% comonomer modification to PCT. [00509] The data shows that 2,2,4,4-tetramethyl-i ,3-cyclobutanediol is more effective than ethylene glycol and isophthalic acid at decreasing the crystallization rate (i.e., increasing the crystallization half-time). In addition, 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol increases T9 and lowers density.
Table 1
Crystallization Half-times (min)
Figure imgf000274_0001
The balance of the diol component of the polyesters in Table 1 is 1. 4-cyclohexanedimethanol; and the balance of the dicarboxylic acid component of the polyesters in Table 1 is dimethyl terephthalate; if the dicarboxylic acid is not described, it is 100 mole % dimethyl terephthalate. 100 mole % 1 , 4-cyclohexanedimethanol. A film was pressed from the ground polyester of Example 1G at 2400C. The resulting film had an inherent viscosity value of 0.575 dL_/g. A film was pressed from the ground polyester of Example 1H at 2400C. The resulting film had an inherent viscosity value of 0.0.652 dL/g. where: A is lsophthalic Acid B is Ethylene Glycol C is 2,2,4,4-Tetramethyl-1 ,3-cyclobutanediol (approx. 50/50 cis/trans)
D is 2,2,4 ,4-Tetramethyl-1 ,3-cyclobutanediol (98/2 cis/trans) [00510] E is 2,2,4 ,4-Tetramethyl-i ,3-cyclobutanediol (5/95 cis/trans)
[00511] As shown in Table 1 and Figure 1 , 2,2,4,4-tetramethyM ,3- cyclobutanediol is more effective than other comonomers, such ethylene glycol and isophthalic acid, at increasing the crystallization half-time, i.e., the time required for a polymer to reach half of its maximum crystal unity. By decreasing the crystallization rate of PCT (increasing the crystallization half-time), amoφhous articles based on 2,2,4,4-tetramethyl-1,3-cyclobutanediol-modified PCT as described herein may be fabricated by methods known in the art. As shown in Table 1 , these materials can exhibit higher glass transition temperatures and lower densities than other modified PCT copolyesters. [00512] Preparation of the polyesters shown on Table 1 is described below.
Example 1A
[00513] This example illustrates the preparation of a copolyester with a target composition of 80 mol% dimethyl terephthalate residues, 20 mol % dimethyl isophthalate residues, and 100 mol% 1 ,4-cyclohexanedimethanol residues (28/72 cis/trans).
[00514] A mixture of 56.63 g of dimethyl terephthalate, 55.2 g of 1 ,4-cyclohexanedimethanol, 14.16 g of dimethyl isophthalate, and 0.0419 g of dibutyl tin oxide was placed in a 500-milliliter flask equipped with an inlet for nitrogen, a metal stirrer, and a short distillation column. The flask was placed in a Wood's metal bath already heated to 2100C. The stirring speed was set to 200 RPM throughout the experiment. The contents of the flask were heated at 2100C for 5 minutes and then the temperature was gradually increased to 2900C over 30 minutes. The reaction mixture was held at 2900C for 60 minutes and then vacuum was gradually applied over the next 5 minutes until the pressure inside the flask reached 100 mm of Hg. The pressure inside the flask was further reduced to 0.3 mm of Hg over the next 5 minutes. A pressure of 0.3 mm of Hg was maintained for a total time of 90 minutes to remove excess unreacted diols. A high melt viscosity, visually clear and colorless polymer was obtained with a glass transition temperature of 87.5°C and an inherent viscosity of 0.63 dl/g. NMR analysis showed that the polymer was composed of 100 mol% 1 ,4-cyclohexanedimethanol residues and 20.2 mol% dimethyl isophthalate residues.
Example 1B
[00515] This example illustrates the preparation of a copolyester with a target composition of 100 mol% dimethyl terephthalate residues, 20 mol % ethylene glycol residues, and 80 mol% 1 ,4-cyclohexanedimethanol residues (32/68 cis/trans). [00516] A mixture of 77.68 g of dimethyl terephthalate, 50.77 g of 1 Λ-cyclohexanedimethanol, 27.81 g of ethylene glycol, and 0.0433 g of dibutyl tin oxide was placed in a 500-milliliter flask equipped with an inlet for nitrogen, a metal stirrer, and a short distillation column. The flask was placed in a Wood's metal bath already heated to 2000C. The stirring speed was set to 200 RPM throughout the experiment. The contents of the flask were heated at 2000C for 60 minutes and then the temperature was gradually increased to 2100C over 5 minutes. The reaction mixture was held at 2100C for 120 minutes and then heated up to 2800C in 30 minutes. Once at 2800C, vacuum was gradually applied over the next 5 minutes until the pressure inside the flask reached 100 mm of Hg. The pressure inside the flask was further reduced to 0.3 mm of Hg over the next 10 minutes. A pressure of 0.3 mm of Hg was maintained for a total time of 90 minutes to remove excess unreacted diols. A high melt viscosity, visually clear and colorless polymer was obtained with a glass transition temperature of 87.7°C and an inherent viscosity of 0.71 dl/g. NMR analysis showed that the polymer was composed of 19.8 mol% ethylene glycol residues.
Example 1C
[00517] This example illustrates the preparation of a copolyester with a target composition of 100 mol% dimethyl terephthalate residues, 20 mol %
2,2,4,4-tetramethyl-1,3-cyclobutanediol residues, and 80 mol%
1 ,4-cyclohexanedimethanol residues (31/69 cis/trans).
[00518] A mixture of 77.68 g of dimethyl terephthalate, 48.46 g of
1.4-cyclohexanedimethanol, 17.86 g of 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol, and 0.046 g of dibutyl tin oxide was placed in a 500-milliliter flask equipped with an inlet for nitrogen, a metal stirrer, and a short distillation column. This polyester was prepared in a manner similar to that described in Example 1 A. A high melt viscosity, visually clear and colorless polymer was obtained with a glass transition temperature of 100.50C and an inherent viscosity of 0.73 dl/g. NMR analysis showed that the polymer was composed of 80.5 mol%
1 ,4-cyclohexanedimethanol residues and 19.5 mol% 2,2,4,4-tetramethyl-
1 ,3-cyclobutanediol residues. Example 1D
[00519] This example illustrates the preparation of a copolyester with a target composition of 100 mol% dimethyl terephthalate residues, 40 moi % dimethyl isophthalate residues, and 100 mol% 1,4-cyclohexanedimethanol residues (28/72 cis/trans).
[00520] A mixture of 42.83 g of dimethyl terephthalate, 55.26 g of 1 ,4-cyclohexanedimethanol, 28.45 g of dimethyl isophthalate, and 0.0419 g of dibutyl tin oxide was placed in a 500-milliliter flask equipped with an inlet for nitrogen, a metal stirrer, and a short distillation column. The flask was placed in a Wood's metal bath already heated to 2100C. The stirring speed was set to 200 RPM throughout the experiment. The contents of the flask were heated at 2100C for 5 minutes and then the temperature was gradually increased to 2900C over 30 minutes. The reaction mixture was held at 2900C for 60 minutes and then vacuum was gradually applied over the next 5 minutes until the pressure inside the flask reached 100 mm of Hg. The pressure inside the flask was further reduced to 0.3 mm of Hg over the next 5 minutes. A pressure of 0.3 mm of Hg was maintained for a total time of 90 minutes to remove excess unreacted diols. A high melt viscosity, visually clear and colorless polymer was obtained with a glass transition temperature of 81.20C and an inherent viscosity of 0.67 dl/g. NMR analysis showed that the polymer was composed of 100 moi% 1 ,4-cyclohexanedimethanol residues and 40.2 mol% dimethyl isophthalate residues.
Example 1E
[00521] This example illustrates the preparation of a copolyester with a target composition of 100 mol% dimethyl terephthalate residues, 40 mol % ethylene glycol residues, and 60 mol% 1,4-cyclohexanedimethanol residues (31/69 cis/trans).
[00522] A mixture of 81.3 g of dimethyl terephthalate, 42.85 g of 1 ,4-cyclohexanedimethanol, 34.44 g of ethylene glycol, and 0.0419 g of dibutyl tin oxide was placed in a 500-milliliter flask equipped with an inlet for nitrogen, a metal stirrer, and a short distillation column. The flask was placed in a Wood's metal bath already heated to 2000C. The stirring speed was set to 200 RPM throughout the experiment. The contents of the flask were heated at 2000C for 60 minutes and then the temperature was gradually increased to 2100C over 5 minutes. The reaction mixture was held at 2100C for 120 minutes and then heated up to 2800C in 30 minutes. Once at 2800C1 vacuum was gradually applied over the next 5 minutes until the pressure inside the flask reached 100 mm of Hg. The pressure inside the flask was further reduced to 0.3 mm of Hg over the next 10 minutes. A pressure of 0.3 mm of Hg was maintained for a total time of 90 minutes to remove excess unreacted diols. A high melt viscosity, visually clear and colorless polymer was obtained with a glass transition temperature of 82.10C and an inherent viscosity of 0.64 dl/g. NMR analysis showed that the polymer was composed of 34.5 mol% ethylene glycol residues.
Example 1F
[00523] This example illustrates the preparation of a copolyester with a target composition of 100 mol% dimethyl terephthalate residues, 40 mol % 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues, and 60 moi% 1 ,4-cyclohexanedimethanol residues (31/69 cis/trans). [00524] A mixture of 77.4 g of dimethyl terephthalate, 36.9 g of 1 ,4-cyclohexanedimethanol, 32.5 g of 2,2,4,4-tetramethyl-1,3-cyclobutanediol, and 0.046 g of dibutyl tin oxide was placed in a 500-milliliter flask equipped with an inlet for nitrogen, a metal stirrer, and a short distillation column. The flask was placed in a Wood's metal bath already heated to 2100C. The stirring speed was set to 200 RPM throughout the experiment. The contents of the flask were heated at 2100C for 3 minutes and then the temperature was gradually increased to 2600C over 30 minutes. The reaction mixture was held at 2600C for 120 minutes and then heated up to 2900C in 30 minutes. Once at 2900C, vacuum was gradually applied over the next 5 minutes until the pressure inside the flask reached 100 mm of Hg. The pressure inside the flask was further reduced to 0.3 mm of Hg over the next 5 minutes. A pressure of 0.3 mm of Hg was maintained for a total time of 90 minutes to remove excess unreacted diols. A high melt viscosity, visually clear and colorless polymer was obtained with a glass transition temperature of 122°C and an inherent viscosity of 0.65 dl/g. NMR analysis showed that the polymer was composed of 59.9 mol% 1 ,4-cyclohexanedimethanol residues and 40.1 mol% 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol residues.
Example 1G
[00525] This example illustrates the preparation of a copolyester with a target composition of 100 mol% dimethyl terephthalate residues, 20 mol %
2,2,4 ,4-tetramethyl-i ,3-cyclobutanediol residues (98/2 cis/trans), and 80 mol%
1 ,4-cyclohexanedimethanol residues (31/69 cis/trans).
(00526] A mixture of 77.68 g of dimethyl terephthalate, 48.46 g of
1 ,4-cyclohexanedimethanol, 20.77 g of 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol, and 0.046 g of dibutyl tin oxide was placed in a 500-milliliter flask equipped with an inlet for nitrogen, a metal stirrer, and a short distillation column. The flask was placed in a Wood's metal bath already heated to 2100C. The stirring speed was set to 200 RPM throughout the experiment. The contents of the flask were heated at 2100C for 3 minutes and then the temperature was gradually increased to 2600C over 30 minutes. The reaction mixture was held at 2600C for 120 minutes and then heated up to 290°C in 30 minutes. Once at 290°C, vacuum was gradually applied over the next 5 minutes until the pressure inside the flask reached 100 mm of Hg and the stirring speed was also reduced to 100 RPM.
The pressure inside the flask was further reduced to 0.3 mm of Hg over the next
5 minutes and the stirring speed was reduced to 50 RPM. A pressure of 0.3 mm of Hg was maintained for a total time of 60 minutes to remove excess un reacted diols. A high melt viscosity, visually clear and colorless polymer was obtained with a glass transition temperature of 1030C and an inherent viscosity of
0.65 dl/g. NMR analysis showed that the polymer was composed of 85.7 mol%
1 ,4-cyclohexanedimethanol residues and 14.3 mol% 2,2,4,4-tetramethyl-
1 ,3-cyclobutanediol residues.
Example 1H
[00527] This example illustrates the preparation of a copolyester with a target composition of 100 mol% dimethyl terephthalate residues, 20 mol % 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues (5/95 cis/trans), and 80 mol% 1 ,4-cyclohexanedimethanol residues (31/69 cis/trans). [00528] A mixture of 77.68 g of dimethyl terephthalate, 48.46 g of 1,4-cyclohexanedimethanol, 20.77 g of 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol, and 0.046 g of dibutyl tin oxide was placed in a 500-milliliter flask equipped with an inlet for nitrogen, a metal stirrer, and a short distillation column. The flask was placed in a Wood's metal bath already heated to 2100C. The stirring speed was set to 200 RPM at the beginning of the experiment. The contents of the flask were heated at 2100C for 3 minutes and then the temperature was gradually increased to 2600C over 30 minutes. The reaction mixture was held at 260°C for 120 minutes and then heated up to 2900C in 30 minutes. Once at 2900C, vacuum was gradually applied over the next 5 minutes with a set point of 100 mm of Hg and the stirring speed was also reduced to 100 RPM. The pressure inside the flask was further reduced to a set point of 0.3 mm of Hg over the next 5 minutes and the stirring speed was reduced to 50 RPM. This pressure was maintained for a total time of 60 minutes to remove excess unreacted diols. It was noted that the vacuum system failed to reach the set point mentioned above, but produced enough vacuum to produce a high melt viscosity, visually clear and colorless polymer with a glass transition temperature of 99°C and an inherent viscosity of 0.73 dl/g. NMR analysis showed that the polymer was composed of 85 mol% 1 ,4-cyclohexanedimethanol residues and 15 mol% 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol residues.
Example 2
[00529] This example illustrates that 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol improves the toughness of PCT-based copolyesters (polyesters containing terephthalic acid and 1 ,4-cyclohexanedimethanol).
[00530] Copolyesters based on 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol were prepared as described below. The cis/trans ratio of the 1 ,4- cyclohexanedimethanol was approximately 31/69 for all samples. Copolyesters based on ethylene glycol and 1,4-cyclohexanedimethanol were commercial polyesters. The copolyester of Example 2A (Eastar PCTG 5445) was obtained from Eastman Chemical Co. The copolyester of Example 2B was obtained from Eastman Chemical Co. under the trade name Spectar. Example 2C and Example 2D were prepared on a pilot plant scale (each a 15-Ib batch) following an adaptation of the procedure described in Example 1A and having the inherent viscosities and glass transition temperatures described in Table 2 below. Example 2C was prepared with a target tin amount of 300ppm (Dibutyltin Oxide). The final product contained 295 ppm tin. The color values for the polyester of Example 2C were L*= 77.11 ; a*= -1.50; and b*= 5.79. Example 2D was prepared with a target tin amount of 300ppm (Dibutyltin Oxide). The final product contained 307 ppm tin. The color values for the polyester of Example 2D were L*= 66.72; a*= -1.22; and b*= 16.28.
[00531] Materials were injection molded into bars and subsequently notched for Izod testing. The notched Izod impact strengths were obtained as a function of temperature and are also reported in Table 2.
[00532] For a given sample, the Izod impact strength undergoes a major transition in a short temperature span. For instance, the Izod impact strength of a copolyester based on 38 mol% ethylene glycol undergoes this transition between 15 and 200C. This transition temperature is associated with a change in failure mode; brittle/low energy failures at lower temperatures and ductile/high energy failures at higher temperatures. The transition temperature is denoted as the brittle-to-ductile transition temperature, Tbd, and is a measure of toughness. Tbd is reported in Table 2 and plotted against mol% comonomer in Figure 2. [00533] The data shows that adding 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol to PCT lowers Tbd and improves the toughness, as compared to ethylene glycol, which increases Tbd of PCT.
Table 2
Notched Izod Impact Energy (ft-lb/in)
Figure imgf000282_0001
The balance of the glycol component of the polyesters in the Table is 1 ,4-cyclohexanedimethanol. All polymers were prepared from 100 mole % dimethyl terephthalate. NA = Not available. where: B is Ethylene glycol
C is 2,2,4,4-TetramethyM ,3-cyclobutanediol (50/50 cis/trans) Example 3 [00534] This example illustrates that 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol can improve the toughness of PCT-based copolyesters(polyesters containing terephthalic acid and 1,4-cyclohexanedimethanol). Polyesters prepared in this example comprise from 15 to 25 mol% of 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol residues.
[00535] Copolyesters based on dimethyl terephthalate, 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol , and 1 ,4-cyclohexanedimethanol (31/69 cis/trans) were prepared as described below, having the composition and properties shown on Table 3. The balance up to 100 mol% of the diol component of the polyesters in Table 3 was 1,4-cyclohexanedimethanol (31/69 cis/trans).
[00536] Materials were injection molded into both 3.2mm and 6.4mm thick bars and subsequently notched for Izod impact testing. The notched Izod impact strengths were obtained at 23°C and are reported in Table 3. Density, Tg, and crystallization halftime were measured on the molded bars. Melt viscosity was measured on pellets at 2900C. Table 3
Compilation of various properties for certain polyesters
Figure imgf000283_0001
NA = Not available.
Example 3A
[00537] 21.24 Ib (49.71 gram-mol) dimethyl terephthalate, 14.34 Ib (45.21 gram-mol) 1 ,4-cyclohexanedimethanol, and 4.58 Ib (14.44 gram-mol) 2,2,4,4- tetramethyl-1,3-cyclobutanediol were reacted together in the presence of 200 ppm of the catalyst butyltin tris(2-ethylhexanoate). The reaction was carried out under a nitrogen gas purge in an 18-gallon stainless steel pressure vessel fitted with a condensing column, a vacuum system, and a HELICONE-type agitator. With the agitator running at 25 RPM, the reaction mixture temperature was increased to 2500C and the pressure was increased to 20 psig. The reaction mixture was held for 2 hours at 2500C and at a pressure of 20 psig. The pressure was then decreased to 0 psig at a rate of 3 psig/minute. The temperature of the reaction mixture was then increased to 2700C and the pressure was decreased to 90 mm of Hg. After a 1 hour hold time at 2700C and 90 mm of Hg, the agitator speed was decreased to 15 RPM, the reaction mixture temperature was increased to 2900C, and the pressure was decreased to <1 mm of Hg. The reaction mixture was held at 2900C and at a pressure of <1 mm of Hg until the power draw to the agitator no longer increased (70 minutes). The pressure of the pressure vessel was then increased to 1 atmosphere using nitrogen gas. The molten polymer was then extruded from the pressure vessel. The cooled, extruded polymer was ground to pass a 6-mm screen. The polymer had an inherent viscosity of 0.736 dL/g and a Tg of 1040C. NMR analysis showed that the polymer was composed of 85.4 mol% 1 ,4-cyclohexane- dimethanol residues and 14.6 mol% 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol residues. The polymer had color values of: L*= 78.20, a*= -1.62, and b*= 6.23.
Example 3B to Example 3D
[00538] The polyesters described in Example 3B to Example 3D were prepared following a procedure similar to the one described for Example 3A. The composition and properties of these polyesters are shown in Table 3.
Example 3E
[00539J 21.24 Ib (49.71 gram-mol) dimethyl terephthalate, 12.61 Ib (39.77 gram-mol) 1 ,4-cyclohexanedimethanol, and 6.30 Ib (19.88 gram-mol) 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol were reacted together in the presence of 200 ppm of the catalyst butyltin tris(2-ethylhexanoate). The reaction was carried out under a nitrogen gas purge in an 18-gallon stainless steel pressure vessel fitted with a condensing column, a vacuum system, and a HELICONE-type agitator. With the agitator running at 25 RPM, the reaction mixture temperature was increased to 2500C and the pressure was increased to 20 psig. The reaction mixture was held for 2 hours at 2500C and 20 psig pressure. The pressure was then decreased to 0 psig at a rate of 3 psig/minute. The temperature of the reaction mixture was then increased to 2700C and the pressure was decreased to 90 mm of Hg. After a 1 hour hold time at 2700C and 90 mm of Hg, the agitator speed was decreased to 15 RPM, the reaction mixture temperature was increased to 2900C, and the pressure was decreased to <1 mm of Hg. The reaction mixture was held at 2900C and at a pressure of <1 mm of Hg for 60 minutes. The pressure of the pressure vessel was then increased to 1 atmosphere using nitrogen gas. The molten polymer was then extruded from the pressure vessel. The cooled, extruded polymer was ground to pass a 6-mm screen. The polymer had an inherent viscosity of 0.715 dl_/g and a Tg of 1100C. X-ray analysis showed that the polyester had 223 ppm tin. NMR analysis showed that the polymer was composed of 78.6 mol% 1 ,4-cyclohexaπe- dimethanol residues and 21.4 mol% 2,2,4 ,4-tetra methyl- 1 ,3-cyclobutanediol residues. The polymer had color values of: L*= 76.45, a*= -1.65, and b*= 6.47. Example 3F
[00540] The polyester described in Example 3F was prepared following a procedure similar to the one described for Example 3A. The composition and properties of this polyester are shown in Table 3.
Example 3G
[00541] The polyester described in Example 3G was prepared following a procedure similar to the one described for Example 3A. The composition and properties of this polyester are shown in Table 3.
Example 3H
[00542] 21.24 Ib (49.71 gram-mol) dimethyl terephthalate, 12.61 Ib (39.77 gram-mol) 1 ,4-cyclohexanedimethanol, and 6.30 Ib (19.88 gram-mol) 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol were reacted together in the presence of 200 ppm of the catalyst butyltin tris(2-ethylhexanoate). The reaction was carried out under a nitrogen gas purge in an 18-gallon stainless steel pressure vessel fitted with a condensing column, a vacuum system, and a HELICONE-type agitator. With the agitator running at 25 RPM, the reaction mixture temperature was increased to 2500C and the pressure was increased to 20 psig. The reaction mixture was held for 2 hours at 2500C and 20 psig pressure. The pressure was then decreased to 0 psig at a rate of 3 psig/minute. The temperature of the reaction mixture was then increased to 2700C and the pressure was decreased to 90 mm of Hg. After a 1 hour hold time at 2700C and 90 mm of Hg, the agitator speed was decreased to 15 RPM, the reaction mixture temperature was increased to 2900C, and the pressure was decreased to <1 mm of Hg. The reaction mixture was held at 2900C and at a pressure of <1 mm of Hg for 12 minutes. The pressure of the pressure vessel was then increased to 1 atmosphere using nitrogen gas. The molten polymer was then extruded from the pressure vessel. The cooled, extruded polymer was ground to pass a 6-mm screen. The polymer had an inherent viscosity of 0.590 dl_/g and a Tg of 1060C. NMR analysis showed that the polymer was composed of 77.1 mol% 1 ,4- cyclohexane-dimethanol residues and 22.9 mol% 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol residues. The polymer had color values of: L*= 83.27, a*= -1.34, and b*= 5.08. Example 31
[00543] 21.24 Ib (49.71 gram-mol) dimethyl terephthalate, 12.61 Ib (39.77 gram-mol) 1 ,4-cyclohexanedimethanol, and 6.30 Ib (19.88 gram-mol) 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol were reacted together in the presence of 200 ppm of the catalyst butyltin tris(2-ethylhexanoate). The reaction was carried out under a nitrogen gas purge in an 18-gallon stainless steel pressure vessel fitted with a condensing column, a vacuum system, and a HELICONE-type agitator. With the agitator running at 25 RPM, the reaction mixture temperature was increased to 2500C and the pressure was increased to 20 psig.The reaction mixture was held for 2 hours at 2500C and 20 psig pressure. The pressure was then decreased to 0 psig at a rate of 3 psig/minute. The temperature of the reaction mixture was then increased to 2700C and the pressure was decreased to 90 mm of Hg. After a 1 hour hold time at 2700C and 90 mm of Hg, the agitator speed was decreased to 15 RPM, the reaction mixture temperature was increased to 2900C, and the pressure was decreased to 4 mm of Hg. The reaction mixture was held at 2900C and at a pressure of 4 mm of Hg for 30 minutes. The pressure of the pressure vessel was then increased to 1 atmosphere using nitrogen gas. The molten polymer was then extruded from the pressure vessel. The cooled, extruded polymer was ground to pass a 6-mm screen. The polymer had an inherent viscosity of 0.531 dL/g and a Tg of 105 0C. NMR analysis showed that the polymer was composed of 76.9 mol% 1 ,4- cyclohexane-dimethanol residues and 23.1 mol% 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues. The polymer had color values of: L*= 80.42, a*= -1.28, and b*= 5.13.
Example 3J
[00544] 21.24 Ib (49.71 gram-mol) dimethyl terephthalate, 12.61 Ib (39.77 gram-mol) 1 ,4-cyclohexanedimethanol, and 6.30 Ib (19.88 gram-mol) 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol were reacted together in the presence of 200 ppm of the catalyst butyltin tris(2-ethylhexanoate). The reaction was carried out under a nitrogen gas purge in an 18-gallon stainless steel pressure vessel fitted with a condensing column, a vacuum system, and a HELICONE-type agitator. With the agitator running at 25 RPM, the reaction mixture temperature was increased to 2500C and the pressure was increased to 20 psig. The reaction mixture was held for 2 hours at 2500C and 20 psig pressure. The pressure was then decreased to 0 psig at a rate of 3 psig/minute. The temperature of the reaction mixture was then increased to 2700C and the pressure was decreased to 90 mm of Hg. After a 1 hour hold time at 2700C and 90 mm of Hg, the agitator speed was decreased to 15 RPM, the reaction mixture temperature was increased to 2900C, and the pressure was decreased to 4 mm of Hg. When the reaction mixture temperature was 290°C and the pressure was 4 mm of Hg, the pressure of the pressure vessel was immediately increased to 1 atmosphere using nitrogen gas. The molten polymer was then extruded from the pressure vessel. The cooled, extruded polymer was ground to pass a 6-mm screen. The polymer had an inherent viscosity of 0.364 dL/g and a Tg of 98°C. NMR analysis showed that the polymer was composed of 77.5 mol% 1,4-cyclohexane- dimethanol residues and 22.5 mol% 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol residues. The polymer had color values of: L*= 77.20, a*= -1.47, and b*= 4.62.
Example 4
[00545] This example illustrates that 2,2,4 ,4-tetramethyM ,3-cyclobutanediol can improve the toughness of PCT-based copolyesters(polyesters containing terephthalic acid and 1 ,4-cyclohexanedimethanol). Polyesters prepared in this example fall comprise more than 25 to less than 40 mol% of 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol residues.
[00546] Copolyesters based on dimethyl terephthalate, 2,2,4 ,4-tetramethyl-i ,3- cyclobutanediol , and 1 ,4-cyclohexanedimethanol (31/69 cis/trans) were prepared as described below, having the composition and properties shown on Table 4. The balance up to 100 mol% of the diol component of the polyesters in Table 4 was 1 ,4-cyclohexanedimethanol (31/69 cis/trans).
[00547] Materials were injection molded into both 3.2mm and 6.4mm thick bars and subsequently notched for Izod impact testing. The notched Izod impact strengths were obtained at 23°C and are reported in Table 4. Density, Tg, and crystallization halftime were measured on the molded bars. Melt viscosity was measured on pellets at 2900C. Table 4
Compilation of various properties for certain polyesters
Figure imgf000288_0001
NA = Not available.
Example 4A
[00548] 21.24 Ib (49.71 gram-mol) dimethyl terephthalate, 11.82 Ib (37.28 gram-mol) 1 ,4-cyclohexanedimethanol, and 6.90 Ib (21.77 gram-mol) 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol were reacted together in the presence of 200 ppm of the catalyst butyltin tris(2-ethylhexanoate). The reaction was carried out under a nitrogen gas purge in an 18-gallon stainless steel pressure vessel fitted with a condensing column, a vacuum system, and a HELICONE-type agitator. With the agitator running at 25 RPM, the reaction mixture temperature was increased to 2500C and the pressure was increased to 20 psig.The reaction mixture was held for 2 hours at 2500C and 20 psig pressure. The pressure was then decreased to 0 psig at a rate of 3 psig/minute. The temperature of the reaction mixture was then increased to 2700C and the pressure was decreased to 90 mm of Hg. After a 1 hour hold time at 2700C and 90 mm of Hg, the agitator speed was decreased to 15 RPM, the reaction mixture temperature was increased to 2900C, and the pressure was decreased to <1 mm of Hg. The reaction mixture was held at 2900C and at a pressure of <1 mm of Hg until the power draw to the agitator no longer increased (50 minutes). The pressure of the pressure vessel was then increased to 1 atmosphere using nitrogen gas. The molten polymer was then extruded from the pressure vessel. The cooled, extruded polymer was ground to pass a 6-mm screen. The polymer had an inherent viscosity of 0.714 dL/g and a Tg of 113°C. NMR analysis showed that the polymer was composed of 73.3 mol% 1 ,4-cyclohexane-dimethano! residues and 26.7 mol% 2,2,4,4-tetramethyM ,3-cyclobutanediol residues. Example 4B
[00549] The polyester of Example 4B was prepared following a procedure similar to the one described for Example 4A. The composition and properties of this polyester are shown in Table 4.
Example 5
[00550] This example illustrates that 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol can improve the toughness of PCT-based copolyesters(polyesters containing terephthalic acid and 1 ,4-cyclohexanedimethanol). Polyesters prepared in this example comprise 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol residues in an amount of 40 mol% or greater.
[00551] Copolyesters based on dimethyl terephthalate, 2,2,4 ,4-tetramethyM ,3- cyclobutanediol , and 1 ,4-cyclohexanedimethanol (31/69 cis/trans) were prepared as described below, having the composition and properties shown on Table 5. The balance up to 100 mol% of the diol component of the polyesters in Table 5 was 1 ,4-cyclohexanedimethanol (31/69 cis/trans).
[00552] Materials were injection molded into both 3.2mm and 6.4mm thick bars and subsequently notched for Izod impact testing. The notched Izod impact strengths were obtained at 23°C and are reported in Table 5. Density, Tg, and crystallization halftime were measured on the molded bars. Melt viscosity was measured on pellets at 2900C.
Table 5 Compilation of various properties for certain polyesters
Figure imgf000289_0001
NA = Not ava a e.
Example 5A
[00553] 21.24 Ib (49.71 gram-mol) dimethyl terephthalate, 8.84 Ib (27.88 gram- mol) 1 ,4-cyclohexanedimethanol, and 10.08 Ib (31.77 gram-mol) 2,2,4,4- tetramethyl-1,3-cyclobutanediol were reacted together in the presence of 200 ppm of the catalyst butyltin tris(2-ethylhexanoate). The reaction was carried out under a nitrogen gas purge in an 18-gallon stainless steel pressure vessel fitted with a condensing column, a vacuum system, and a HELICONE-type agitator. With the agitator running at 25 RPM1 the reaction mixture temperature was increased to 2500C and the pressure was increased to 20 psig. The reaction mixture was held for 2 hours at 2500C and 20 psig pressure. The pressure was then decreased to 0 psig at a rate of 3 psig/minute. Then the agitator speed was decreased to 15 RPM1 the temperature of the reaction mixture was then increased to 2900C and the pressure was decreased to 2 mm of Hg. The reaction mixture was held at 2900C and at a pressure of 2 mm of Hg until the power draw to the agitator no longer increased (80 minutes). The pressure of the pressure vessel was then increased to 1 atmosphere using nitrogen gas. The molten polymer was then extruded from the pressure vessel. The cooled, extruded polymer was ground to pass a 6-mm screen. The polymer had an inherent viscosity of 0.657 dl_/g and a Tg of 1190C. NMR analysis showed that the polymer was composed of 56.3 mol% 1 ,4-cyclohexane-dimethanol residues and 43.7 mol% 2,2,4,4-tetramethyM ,3-cyclobutanediol residues. The polymer had color values of: L*= 75.04, a*=-1.82, and b*= 6.72.
Example 5B to Example 5D
[00554] The polyesters described in Example 5B to Example 5D were prepared following a procedure similar to the one described for Example 5A. The composition and properties of these polyesters are shown in Table 5. Example SE
[00555] 21.24 Ib (49.71 gram-mol) dimethyl terephthalate, 6.43 Ib (20.28 gram- mol 1,4-cyclohexanedimethanol, and 12.49 Ib (39.37 gram-mol) 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol were reacted together in the presence of 200 ppm of the catalyst butyltin tris(2-ethylhexanoate). The reaction was carried out under a nitrogen gas purge in an 18-gallon stainless steel pressure vessel fitted with a condensing column, a vacuum system, and a HELICONE-type agitator. With the agitator running at 25 RPM1 the reaction mixture temperature was increased to 2500C and the pressure was increased to 20 psig.The reaction mixture was held for 2 hours at 2500C and 20 psig pressure. The pressure was then decreased to 0 psig at a rate of 3 psig/minute. Then the agitator speed was decreased to 15 RPM, the temperature of the reaction mixture was then increased to 2900C and the pressure was decreased to 2 mm of Hg. The reaction mixture was held at 2900C and at a pressure of <1 mm of Hg until the power draw to the agitator no longer increased (50 minutes). The pressure of the pressure vessel was then increased to 1 atmosphere using nitrogen gas. The molten polymer was then extruded from the pressure vessel. The cooled, extruded polymer was ground to pass a 6-mm screen. The polymer had an inherent viscosity of 0.604 dUg and a Tg of 139°C. NMR analysis showed that the polymer was composed of 40.8 mol% 1 ,4-cyclohexanedimethanol residues and 59.2 mol% 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues. The polymer had color values of: L*= 80.48, a*= -1.30, and b*= 6.82.
Example 5F
[00556] 21.24 Ib (49.71 gram-mol) dimethyl terephthalate, 8.84 Ib (27.88 gram- mol) 1 ,4-cyclohexanedimethanol, and 10.08 Ib (31.77 gram-mol) 2,2,4,4- tetramethyl-1,3-cyclobutanediol were reacted together in the presence of 200 ppm of the catalyst butyltin tris(2-ethylhexanoate). The reaction was carried out under a nitrogen gas purge in an 18-gallon stainless steel pressure vessel fitted with a condensing column, a vacuum system, and a HELICONE-type agitator. With the agitator running at 25 RPM, the reaction mixture temperature was increased to 2500C and the pressure was increased to 20 psig. The reaction mixture was held for 2 hours at 2500C and 20 psig pressure. The pressure was then decreased to 0 psig at a rate of 3 psig/minute. The temperature of the reaction mixture was then increased to 2700C and the pressure was decreased to 90 mm of Hg. After a 1 hour hold time at 2700C and 90 mm of Hg, the agitator speed was decreased to 15 RPM and the pressure was decreased to 4 mm of Hg. When the reaction mixture temperature was 2700C and the pressure was 4 mm of Hg, the pressure of the pressure vessel was immediately increased to 1 atmosphere using nitrogen gas. The molten polymer was then extruded from the pressure vessel. The cooled, extruded polymer was ground to pass a 6-mm screen. The polymer had an inherent viscosity of 0.475 dL/g and a Tg of 121°C. NMR analysis showed that the polymer was composed of 55.5 mol% 1 ,4- cyclohexane-dimethanol residues and 44.5 mol% 2,2,4,4-tetramethyM ,3- cyclobutanediol residues. The polymer had color values of: L*= 85.63, a*= -0.88, and b*= 4.34.
Example 6 — Comparative Example
[00557] This example shows data for comparative materials in Table 6. The PC was Makrolon 2608 from Bayer, with a nominal composition of 100 mole% bisphenol A residues and 100 mole% diphenyl carbonate residues. Makrolon 2608 has a nominal melt flow rate of 20 grams/10 minutes measured at 300C using a 1.2 kg weight. The PET was Eastar 9921 from Eastman Chemical Company, with a nominal composition of 100 mole% terephthalic acid, 3.5 mole% cyclohexanedimethanol (CHDM) and 96.5 mole% ethylene glycol. The PETG was Eastar 6763 from Eastman Chemical Company, with a nominal composition of 100 mole% terephthalic acid, 31 mole% cyclohexanedimethanol (CHDM) and 69 mole % ethylene glycol. The PCTG was Eastar DN001 from Eastman Chemical Company, with a nominal composition of 100 mole% terephthalic acid, 62 mole% cyclohexanedimethanol (CHDM) and 38 mole % ethylene glycol. The PCTA was Eastar AN001 from Eastman Chemical Company, with a nominal composition of 65 mole% terephthalic acid, 35 mole% isophthalic acid and 100 mole% cyclohexanedimethanol (CHDM). The Polysulfone was Udel 1700 from Solvay, with a nominal composition of 100 mole% bisphenol A residues and 100 mole% 4,4-dichlorosulfonyl sulfone residues. Udel 1700 has a nominal melt flow rate of 6.5 grams/10 minutes measured at 343C using a 2.16 kg weight. The SAN was Lustran 31 from Lanxess, with a nominal composition of 76 weight % styrene and 24 weight % acrylonitrile. Lustran 31 has a nominal melt flow rate of 7.5 grams/10 minutes measured at 230C using a 3.8 kg weight. The examples comprising 2,2,4,4-tetramethyM, 3-cyclobutanediol show improved toughness in 6.4mm thickness bars compared to all of the other resins. Table 6
Figure imgf000293_0001
NA = Not available
Example 7
[00558] This example illustrates the effect of the amount of 2,2 ,4,4-tetramethyl-
1 ,3-cyclobutanediol used for the preparation of various polyesters on the glass transition temperature of the polyesters. Polyesters prepared in this example comprise from 15 to 25 mol% of 2,2,4,4-tetramethyM ,3-cyclobutanediol residues.
Example 7A to Example 7G
[00559] Dimethyl terephthalate, 1 ,4-cyclohexanedimethanol, and
2,2,4,4-tetramethyM ,3-cyclobutanediol were weighed into a 500-ml single neck round bottom flask. NMR analysis on the 2,2,4,4-tetramethyl-1,3-cyclobutanediol starting material showed a cis/trans ratio of 53/47. The polyesters of this example were prepared with a 1.2/1 glycol/acid ratio with the entire excess coming from the 2, 2,4,4-tetramethyM ,3-cyclobutanediol. Enough dibutyltin oxide catalyst was added to give 300 ppm tin in the final polymer. The flask was under a 0.2 SCFC nitrogen purge with vacuum reduction capability. The flask was immersed in a Belmont metal bath at 2000C and stirred at 200 RPM after the reactants had melted. After about 2.5 hours, the temperature was raised to 21O0C and these conditions were held for an additional 2 hours. The temperature was raised to 2850C (in approximately 25 minutes) and the pressure was reduced to 0.3 mm of Hg over a period of 5 minutes. The stirring was reduced as the viscosity increased, with 15 RPM being the minimum stirring used. The total polymerization time was varied to attain the target inherent viscosities. After the polymerization was complete, the Belmont metal bath was lowered and the polymer was allowed to cool to below its glass transition temperature. After about 30 minutes, the flask was reimmersed in the Belmont metal bath (the temperature had been increased to 295°C during this 30 minute wait) and the polymer mass was heated until it pulled away from the glass flask. The polymer mass was stirred at mid level in the flask until the polymer had cooled. The polymer was removed from the flask and ground to pass a 3 mm screen. Variations to this procedure were made to produce the copolyesters described below with targeted compositions of 20, 32, and 45 mol%. [00560] Inherent viscosities were measured as described in the "Measurement Methods" section above. The compositions of the polyesters were determined by 1H NMR as explained before in the Measurement Methods section. The glass transition temperatures were determined by DSC, using the second heat after quench at a rate of 20°C/min.
Example 7H to Example 7Q
[00561] These examples were prepared by carrying out the ester exchange and polycondensation reactions in separate stages. The ester exchange experiments were conducted in a continuous temperature rise (CTR) reactor. The CTR was a 3000 ml glass reactor equipped with a single shaft impeller blade agitator, covered with an electric heating mantle and fitted with a heated packed reflux condenser column. The reactor was charged with 777g ( 4 moles) of dimethyl terephthalate, 23Og (1.6 moles) of 2,2,4,4-tetramethyl-1,3,- cyclobutanediol, 460.8g (3.2 moles) of cyclohexane dimethanol and 1.12g of butyltin tris-2-ethylhexanoate (such that there will be 200ppm tin metal in the final polymer). The heating mantle was set manually to 100 % output. The set points and data collection were facilitated by a Camile process control system. Once the reactants were melted, stirring was initiated and slowly increased to 250 rpm. The temperature of the reactor gradually increased with run time. The weight of methanol collected was recorded via balance. The reaction was stopped when methanol evolution stopped or at a pre-selected lower temperature of 260°C. The oligomer was discharged with a nitrogen purge and cooled to room temperature. The oligomer was frozen with liquid nitrogen and broken into pieces small enough to be weighed into a 500 ml round bottom flask.
[00562] In the polycondensation reactions, a 500 ml round bottom flask was charged with approximately 150 g of the oligomer prepared above. The flask was equipped with a stainless steel stirrer and polymer head. The glassware was set up on a half mole polymer rig and the Camile sequence was initiated. The stirrer was positioned one full turn from the flask bottom once the oligomer melted. The temperature/pressure/stir rate sequence controlled by the Camile software for each example is reported in the following tables.
[00563] Camile Sequence for Example 7H and Example 7I
Figure imgf000295_0001
[00564] Camile Sequence for Example 7N to Example 7Q
Figure imgf000295_0002
[00565] Camile Sequence for Example 7K and Example 7L [00566] Camile
Figure imgf000296_0001
[00567] The resulting polymers were recovered from the flask, chopped using a hydraulic chopper, and ground to a 6 mm screen size. Samples of each ground polymer were submitted for inherent viscosity in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.5 g/100 ml at 25°C, catalyst level (Sn) by x-ray fluorescence, and color (L*. a*, b*) by transmission spectroscopy. Polymer composition was obtained by 1H NMR. Samples were submitted for thermal stability and melt viscosity testing using a Rheometrics Mechanical Spectrometer (RMS-800).
[00568] The table below shows the experimental data for the polyesters of this example. The data shows that an increase in the level of 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol raises the glass transition temperature in an almost linear fashion, for a constant inherent viscosity. Figure 3 also shows the dependence of Tg on composition and inherent viscosity. Table 7
Glass transition temperature as a function of inherent viscosity and composition
Figure imgf000297_0001
NA = Not available
Example 8
[00569] This example illustrates the effect of the amount of 2,2,4,4-tetramethyl-
1,3-cyclobutanediol used for the preparation of various polyesters on the glass transition temperature of the polyesters. Polyesters prepared in this example fall comprise more than 25 to less than 40 mol% of 2,2,4, 4-tetrame thy I- 1 ,3-cyclobutanediol residues.
[00570] Dimethyl terephthalate, 1 ,4-cyclohexanedimethanol, and 2, 2,4 ,4-tetramethyl-i ,3-cyclobutanediol were weighed into a 500-ml single neck round bottom flask. NMR analysis on the 2,2,4,4-tetramethyM ,3-cyclobutanediol starting material showed a cis/trans ratio of 53/47. The polyesters of this example were prepared with a 1.2/1 glycol/acid ratio with the entire excess coming from the 2, 2,4,4-tetramethyM ,3-cyclobutanediol. Enough dibutyltin oxide catalyst was added to give 300 ppm tin in the final polymer. The flask was under a 0.2 SCFC nitrogen purge with vacuum reduction capability. The flask was immersed in a Belmont metal bath at 2000C and stirred at 200 RPM after the reactants had melted. After about 2.5 hours, the temperature was raised to 2100C and these conditions were held for an additional 2 hours. The temperature was raised to 285°C (in approximately 25 minutes) and the pressure was reduced to 0.3 mm of Hg over a period of 5 minutes. The stirring was reduced as the viscosity increased, with 15 RPM being the minimum stirring used. The total polymerization time was varied to attain the target inherent viscosities. After the polymerization was complete, the Belmont metal bath was lowered and the polymer was allowed to cool to below its glass transition temperature. After about 30 minutes, the flask was reimmersed in the Belmont metal bath (the temperature had been increased to 295°C during this 30 minute wait) and the polymer mass was heated until it pulled away from the glass flask. The polymer mass was stirred at mid level in the flask until the polymer had cooled. The polymer was removed from the flask and ground to pass a 3 mm screen. Variations to this procedure were made to produce the copolyesters described below with targeted compositions of 20, 32, and 45 mol%. [00571] Inherent viscosities were measured as described in the "Measurement Methods" section above. The compositions of the polyesters were determined by 1H NMR as explained before in the Measurement Methods section. The glass transition temperatures were determined by DSC, using the second heat after quench at a rate of 20°C/min.
[00572] The table below shows the experimental data for the polyesters of this example. The data shows that an increase in the level of 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol raises the glass transition temperature in an almost linear fashion, for a constant inherent viscosity. Figure 3 also shows the dependence of Tg on composition and inherent viscosity. Table 8
Figure imgf000299_0001
NA = Not available
Example 9
[00573] This example illustrates the effect of the amount of 2,2,4,4-tetramethyl-
1 ,3-cyclobutanediol used for the preparation of various polyesters on the glass transition temperature of the polyesters. Polyesters prepared in this example comprise 2,2,4,4-tetramethyM ,3-cyclobutanediol residues in an amount of 40 mol% or greater.
Example 9A to Example 9AC
[00574] These examples were prepared by carrying out the ester exchange and polycondensation reactions in separate stages. The ester exchange experiments were conducted in a continuous temperature rise (CTR) reactor. The CTR was a 3000 ml glass reactor equipped with a single shaft impeller blade agitator, covered with an electric heating mantle and fitted with a heated packed reflux condenser column. The reactor was charged with 777g of dimethyl terephthalate, 375g of 2,2,4,4-tetramethyl-1,3,-cyclobutanediol, 317g of cyclohexane dimethanol and 1.12g of butyltin tris-2-ethylhexanoate (such that there will be 200ppm tin metal in the final polymer). The heating mantle was set manually to 100 % output. The set points and data collection were facilitated by a Camile process control system. Once the reactants were melted, stirring was initiated and slowly increased to 250 rpm. The temperature of the reactor gradually increased with run time. The weight of methanol collected was recorded via balance. The reaction was stopped when methanol evolution stopped or at a pre-selected lower temperature of 2600C. The oligomer was discharged with a nitrogen purge and cooled to room temperature. The oligomer was frozen with liquid nitrogen and broken into pieces small enough to be weighed into a 500 ml round bottom flask.
[00575] In the polycondensation reactions, a 500 ml round bottom flask was charged with 150 g of the oligomer prepared above. The flask was equipped with a stainless steel stirrer and polymer head. The glassware was set up on a half mole polymer rig and the Camile sequence was initiated. The stirrer was positioned one full turn from the flask bottom once the oligomer melted. The temperature/pressure/stir rate sequence controlled by the Camile software for these examples is reported in the following table, unless otherwise specified below.
Camile Sequence for Polycondensation Reactions
Figure imgf000300_0001
[00576) Camile Sequence for Examples A1 C, R, Y, AB, AC
Figure imgf000300_0002
[005771 For Examples B, D1 F, the same sequence in the preceding table was used, except the time was 80 min in Stage 7. For Examples G and J1 the same sequence in the preceding table was used, except the time was 50 min in Stage 7. For Example L, the same sequence in the preceding table was used, except the time was 140 min in Stage 7.
{00578] Camile Sequence for Example E
Figure imgf000301_0001
[00579] For Example I, the same sequence in the preceding table was used, except the vacuum was 8 torr in Stages 6 and 7. For Example O, the same sequence in the preceding table was used, except the vacuum was 6 torr in Stages 6 and 7. For Example P, the same sequence in the preceding table was used, except the vacuum was 4 torr in Stages 6 and 7. For Example Q, the same sequence in the preceding table was used, except the vacuum was 5 torr in Stages 6 and 7. [00580] Camile Sequence for Example H
Figure imgf000301_0002
[00581] For Example U and AA, the same sequence in the preceding table was used, except the vacuum was 6 torr in Stages 6 and 7. For Example V and X, the same sequence in the preceding table was used, except the vacuum was 6 torr and stir rate was 15 rpm in Stages 6 and 7. For Example Z, the same sequence in the preceding table was used, except the stir rate was 15 rpm in Stages 6 and 7. [00582] Camile Sequence for Example K
Figure imgf000302_0001
[00583] For Example M, the same sequence in the preceding table was used, except the vacuum was 8 torr in Stages 6 and 7. For Example N1 the same sequence in the preceding table was used, except the vacuum was 7 ton* in Stages 6 and 7. [00584] Camile Sequence for Examples S and T
Figure imgf000302_0002
[00585] The resulting polymers were recovered from the flask, chopped using a hydraulic chopper, and ground to a 6 mm screen size. Samples of each ground polymer were submitted for inherent viscosity in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.5 g/100 ml at 25°C, catalyst level (Sn) by x-ray fluorescence, and color (L*, a*, b*) by transmission spectroscopy. Polymer composition was obtained by 1H NMR. Samples were submitted for thermal stability and melt viscosity testing using a Rheometrics Mechanical Spectrometer (RMS-800).
Example 9AD to Example 9AK, and Example 9AT
[00586] The polyesters of these examples were prepared as described above for Examples A to AC, except that the target tin amount in the final polymer was 150ppm for examples AD to AK and AT. The following tables describe the temperature/pressure/stir rate sequences controlled by the Camile software for these examples.
[00587] Camile Sequence for Examples AD, AF, and AH
Figure imgf000303_0001
[00588] For Example AD, the stirrer was turned to 25 rpm with 95 min left in
Stage 7.
[00589] Camile Sequence for Example AE
Figure imgf000303_0002
[00590] For Example AK, the same sequence in the preceding table was used, except the time was 75 min in Stage 7. [00591] Camile Sequence for Example AG
Figure imgf000303_0003
[00592] Camile Sequence for Example Al
Figure imgf000304_0001
[00593J Camile Sequence for Example AJ
Figure imgf000304_0002
Example 9AL to Example 9AS
[00594] Dimethyl terephthalate, 1 ,4-cyclohexanedimethanol, and
2,2,4,4-tetramethyM ,3-cyclobutanediol were weighed into a 500-ml single neck round bottom flask. The polyesters of this example were prepared with a 1.2/1 glycol/acid ratio with the entire excess coming from the 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol. Enough dibutyltin oxide catalyst was added to give 300 ppm tin in the final polymer. The flask was under a 0.2 SCFC nitrogen purge with vacuum reduction capability. The flask was immersed in a Belmont metal bath at 2000C and stirred at 200 RPM after the reactants had melted. After about 2.5 hours, the temperature was raised to 2100C and these conditions were held for an additional 2 hours. The temperature was raised to 285°C (in approximately 25 minutes) and the pressure was reduced to 0.3 mm of Hg over a period of 5 minutes. The stirring was reduced as the viscosity increased, with 15 RPM being the minimum stirring used. The total polymerization time was varied to attain the target inherent viscosities. After the polymerization was complete, the Belmont metal bath was lowered and the polymer was allowed to cool to below its glass transition temperature. After about 30 minutes, the flask was reimmersed in the Belmont metal bath (the temperature had been increased to 2950C during this 30 minute wait) and the polymer mass was heated until it pulled away from the glass flask. The polymer mass was stirred at mid level in the flask until the polymer had cooled. The polymer was removed from the flask and ground to pass a 3 mm screen. Variations to this procedure were made to produce the copolyesters described below with targeted compositions of 20, 32, and 45 mol%. [00595] Inherent viscosities were measured as described in the "Measurement Methods" section above. The compositions of the polyesters were determined by 1H NMR as explained before in the Measurement Methods section. The glass transition temperatures were determined by DSC, using the second heat after quench at a rate of 20°C/min.
[00596) The table below shows the experimental data for the polyesters of this example. The data shows that an increase in the level of 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol raises the glass transition temperature in an almost linear fashion, for a constant inherent viscosity. Figure 3 also shows the dependence of Tg on composition and inherent viscosity.
Table 9
Glass transition temperature as a function of inherent viscosity and composition
Figure imgf000306_0001
NA = Not available Example 10
[00597] This example illustrates the effect of the predominance of the type of
2,2,4,4-tetramethyl-1,3-cyclobutanediol isomer (cis or trans) on the glass transition temperature of the polyester.
[00598] Dimethyl terephthalate, 1 ,4-cyclohexanedimethanol, and 2,2,4,4-tetramethyl-1,3-cyclobutanediol were weighed into a 500-ml single neck round bottom flask. The polyesters of this example were prepared with a 1.2/1 glycol/acid ratio with the entire excess coming from the 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol. Enough dibutyltin oxide catalyst was added to give 300 ppm tin in the final polymer. The flask was under a 0.2 SCFC nitrogen purge with vacuum reduction capability. The flask was immersed in a Belmont metal bath at 2000C and stirred at 200 RPM after the reactants had melted. After about 2.5 hours, the temperature was raised to 2100C and these conditions were held for an additional 2 hours. The temperature was raised to 285°C (in approximately 25 minutes) and the pressure was reduced to 0.3 mm of Hg over a period of 5 minutes. The stirring was reduced as the viscosity increased, with 15 RPM being the minimum stirring used. The total polymerization time was varied to attain the target inherent viscosities. After the polymerization was complete, the Betmont metal bath was lowered and the polymer was allowed to cool to below its glass transition temperature. After about 30 minutes, the flask was reimmersed in the Belmont metal bath (the temperature had been increased to 295°C during this 30 minute wait) and the polymer mass was heated until it pulled away from the glass flask. The polymer mass was stirred at mid level in the flask until the polymer had cooled. The polymer was removed from the flask and ground to pass a 3 mm screen. Variations to this procedure were made to produce the copolyesters described below with targeted compositions of 20, 32, and 45 mol%. [00599] Inherent viscosities were measured as described in the "Measurement Methods" section above. The compositions of the polyesters were determined by 1H NMR as explained before in the Measurement Methods section. The glass transition temperatures were determined by DSC, using the second heat after quench at a rate of 20°C/min. [00600] The table below shows the experimental data for the polyesters of this Example. The data shows that cis 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol is approximately twice as effective as trans 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol at increasing the glass transition temperature for a constant inherent viscosity.
Table 10
Figure imgf000308_0001
NA = not available
Example 11
[00601] This example illustrates the preparation of a copolyester containing 100 mol% dimethyl terephthalate residues, 55 mol% 1 ,4-cyclohexanedimethanol residues, and 45 mol% 2,2,4,4-tetramethyM ,3-cyclobutanediol residues. [00602] A mixture of 97.1O g (0.5 mol) dimethyl terephthalate, 52.46 g (0.36 mol) 1 ,4-cyclohexanedimethanol, 34.07 g (0.24 mol) 2,2,4 ,4-tetramethyM ,3- cyclobutanediol, and 0.0863 g (300 ppm) dibutyl tin oxide was placed in a 500- milliliter flask equipped with an inlet for nitrogen, a metal stirrer, and a short distillation column. The flask was placed in a Wood's metal bath already heated to 2000C. The contents of the flask were heated at 2000C for 1 hour and then the temperature was increased to 2100C. The reaction mixture was held at 2100C for 2 hours and then heated up to 2900C in 30 minutes. Once at 2900C, a vacuum of 0.01 psig was gradually applied over the next 3 to 5 minutes. Full vacuum (0.01 psig) was maintained for a total time of about 45 minutes to remove excess unreacted diols. A high melt viscosity, visually clear and colorless polymer was obtained with a glass transition temperature of 125°C and an inherent viscosity of 0.64 dl/g.
Example 12 — Comparative Example
[00603] This example illustrates that a polyester based on 100% 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol has a slow crystallization half-time. (00604] A polyester based solely on terephthalic acid and 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol was prepared in a method similar to the method described in Example 11 with the properties shown on Table 11. This polyester was made with 300 ppm dibutyl tin oxide. The trans/cis ratio of the 2,2,4,4-tetramethyM ,3- cyclobutanediol was 65/35.
[00605] Films were pressed from the ground polymer at 3200C. Crystallization half-time measurements from the melt were made at temperatures from 220 to 250°C at 10°C increments and are reported in Table 11. The fastest crystallization half-time for the sample was taken as the minimum value of crystallization half-time as a function of temperature. The fastest crystallization half-time of this polyester is around 1300 minutes. This value contrasts with the fact that the polyester (PCT) based solely on terephthalic acid and 1 ,4- cyclohexanedimethanol (no comonomer modification) has an extremely short crystallization half-time (<1 min) as shown in Figure 1. Table 11
Crystallization Half-times (min)
Figure imgf000310_0001
where: is 2,2,4,4-Tetramethyl-1 ,3-cyclobutanediol (65/35 Trans/Cis)
Example 13
[00606] Sheets comprising a polyester that had been prepared with a target composition of 100 mole % terephthalic acid residues, 80 mole % 1 ,4-cyclohexaπedimethanol residues, and 20 mole % 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol residues were produced using a 3.5 inch single screw extruder. A sheet was extruded continuously, gauged to a thickness of 177 mil and then various sheets were sheared to size. Inherent viscosity and glass transition temperature were measured on one sheet. The sheet inherent viscosity was measured to be 0.69 dl/g. The glass transition temperature of the sheet was measured to be 1060C. Sheets were then conditioned at 50% relative humidity and 600C for 2 weeks. Sheets were subsequently thermoformed into a female mold having a draw ratio of 2.5:1 using a Brown thermoforming machine. The thermoforming oven heaters were set to 70/60/60% output using top heat only. Sheets were left in the oven for various amounts of time in order to determine the effect of sheet temperature on the part quality as shown in the table below. Part quality was determined by measuring the volume of the thermoformed part, calculating the draw, and visually inspecting the thermoformed part. The draw was calculated as the part volume divided by the maximum part volume achieved in this set of experiments (Example G). The thermoformed part was visually inspected for any blisters and the degree of blistering rated as none (N), low (L), or high (H). The results below demonstrate that these thermoplastic sheets with a glass transition temperature of 1060C can be thermoformed under the conditions shown below, as evidenced by these sheets having at least 95% draw and no blistering, without predrying the sheets prior to thermoforming.
Figure imgf000311_0001
Example 14
[00607] Sheets comprising a polyester that had been prepared with a target composition of 100 mole % terephthalic acid residues, 80 mole % 1 ,4-cyclohexanedimethanol residues, and 20 mole % 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol residues were produced using a 3.5 inch single screw. A sheet was extruded continuously, gauged to a thickness of 177 mil and then various sheets were sheared to size. Inherent viscosity and glass transition temperature were measured on one sheet. The sheet inherent viscosity was measured to be 0.69 dl/g. The glass transition temperature of the sheet was measured to be 1060C. Sheets were then conditioned at 100% relative humidity and 25°C for 2 weeks. Sheets were subsequently thermoformed into a female mold having a draw ratio of 2.5:1 using a Brown thermoforming machine. The thermoforming oven heaters were set to 60/40/40% output using top heat only. Sheets were left in the oven for various amounts of time in order to determine the effect of sheet temperature on the part quality as shown in the table below. Part quality was determined by measuring the volume of the thermoformed part, calculating the draw, and visually inspecting the thermoformed part. The draw was calculated as the part volume divided by the maximum part volume achieved in this set of experiments (Example G). The thermoformed part was visually inspected for any blisters and the degree of blistering rated as none (N), low (L), or high (H). The results below demonstrate that these thermoplastic sheets with a glass transition temperature of 1060C can be thermoformed under the conditions shown below, as evidenced by the production of sheets having at least 95% draw and no blistering, without predrying the sheets prior to thermoforming.
Figure imgf000312_0001
Example 15 — Comparative Example
[00608] Sheets consisting of Kelvx 201 were produced using a 3.5 inch single screw extruder. Kelvx is a blend consisting of 69.85% PCTG (Eastar from Eastman Chemical Co. having 100 mole % terephthalic acid residues, 62 mole % 1 ,4-cyclohexanedimethanol residues, and 38 mole % ethylene glycol residues); 30% PC (bisphenol A polycarbonate); and 0.15% Weston 619 (stabilizer sold by Crompton Corporation). A sheet was extruded continuously, gauged to a thickness of 177 mil and then various sheets were sheared to size. The glass transition temperature was measured on one sheet and was 1000C. Sheets were then conditioned at 50% relative humidity and 600C for 2 weeks. Sheets were subsequently thermoformed into a female mold having a draw ratio of 2.5:1 using a Brown thermoforming machine. The thermoforming oven heaters were set to 70/60/60% output using top heat only. Sheets were left in the oven for various amounts of time in order to determine the effect of sheet temperature on the part quality as shown in the table below. Part quality was determined by measuring the volume of the thermoformed part, calculating the draw, and visually inspecting the thermoformed part. The draw was calculated as the part volume divided by the maximum part volume achieved in this set of experiments (Example E). The thermoformed part was visually inspected for any blisters and the degree of blistering rated as none (N), low (L), or high (H). The results below demonstrate that these thermoplastic sheets with a glass transition temperature of 1000C can be thermoformed under the conditions shown below, as evidenced by the production of sheets having at least 95% draw and no blistering, without predrying the sheets prior to thermoforming.
Figure imgf000313_0001
Example 16 — Comparative Example
[00609] Sheets consisting of Kelvx 201 were produced using a 3.5 inch single screw extruder. A sheet was extruded continuously, gauged to a thickness of 177 mil and then various sheets were sheared to size. The glass transition temperature was measured on one sheet and was 1000C. Sheets were then conditioned at 100% relative humidity and 25°C for 2 weeks. Sheets were subsequently thermoformed into a female mold having a draw ratio of 2.5:1 using a Brown thermoforming machine. The thermoforming oven heaters were set to 60/40/40% output using top heat only. Sheets were left in the oven for various amounts of time in order to determine the effect of sheet temperature on the part quality as shown in the table below. Part quality was determined by measuring the volume of the thermoformed part, calculating the draw, and visually inspecting the thermoformed part. The draw was calculated as the part volume divided by the maximum part volume achieved in this set of experiments (Example H). The thermoformed part was visually inspected for any blisters and the degree of blistering rated as none (N), low (L), or high (H). The results below demonstrate that these thermoplastic sheets with a glass transition temperature of 1000C can be thermoformed under the conditions shown below, as evidenced by the production of sheets having greater than 95% draw and no blistering, without predrying the sheets prior to thermoforming.
Figure imgf000314_0001
NR = Not recorded
Example 17 — Comparative Example
[00610] Sheets consisting of PCTG 25976 (100 mole % terephthalic acid residues, 62 mole % 1 ,4-cyclohexanedimethanol residues, and 38 mole % ethylene glycol residues) were produced using a 3.5 inch single screw extruder. A sheet was extruded continuously, gauged to a thickness of 118 mil and then various sheets were sheared to size. The glass transition temperature was measured on one sheet and was 87°C. Sheets were then conditioned at 50% relative humidity and 600C for 4 weeks. The moisture level was measured to be 0.17 wt%. Sheets were subsequently thermoformed into a female mold having a draw ratio of 2.5:1 using a Brown thermoforming machine. The thermoforming oven heaters were set to 70/60/60% output using top heat only. Sheets were left in the oven for various amounts of time in order to determine the effect of sheet temperature on the part quality as shown in the table below. Part quality was determined by measuring the volume of the thermoformed part, calculating the draw, and visually inspecting the thermoformed part. The draw was calculated as the part volume divided by the maximum part volume achieved in this set of experiments (Example A). The thermoformed part was visually inspected for any blisters and the degree of blistering rated as none (N), low (L), or high (H). The results below demonstrate that these thermoplastic sheets with a glass transition temperature of 87°C can be thermoformed under the conditions shown below, as evidenced by the production of sheets having greater than 95% draw and no blistering, without predrying the sheets prior to thermoforming.
Figure imgf000315_0001
Example 18 — Comparative Example
[00611] A miscible blend consisting of 20 wt% Teijin L-1250 polycarbonate (a bisphenol-A polycarbonate), 79.85 wt% PCTG 25976, and 0.15 wt% Weston 619 was produced using a 1.25 inch single screw extruder. Sheets consisting of the blend were then produced using a 3.5 inch single screw extruder. A sheet was extruded continuously, gauged to a thickness of 118 mil and then various sheets were sheared to size. The glass transition temperature was measured on one sheet and was 94°C. Sheets were then conditioned at 50% relative humidity and 600C for 4 weeks. The moisture level was measured to be 0.25 wt%. Sheets were subsequently thermoformed into a female mold having a draw ratio of 2.5:1 using a Brown thermoforming machine. The thermoforming oven heaters were set to 70/60/60% output using top heat only. Sheets were left in the oven for various amounts of time in order to determine the effect of sheet temperature on the part quality as shown in the table below. Part quality was determined by measuring the volume of the thermoformed part, calculating the draw, and visually inspecting the thermoformed part. The draw was calculated as the part volume divided by the maximum part volume achieved in this set of experiments (Example A). The thermoformed part was visually inspected for any blisters and the degree of blistering rated as none (N), low (L), or high (H). The results below demonstrate that these thermoplastic sheets with a glass transition temperature of 94°C can be thermoformed under the conditions shown below, as evidenced by the production of sheets having greater than 95% draw and no blistering, without predrying the sheets prior to thermoforming.
Figure imgf000316_0001
Example 19 — Comparative Example
[00612] A miscible blend consisting of 30 wt% Teijin L-1250 polycarbonate,
69.85 wt% PCTG 25976, and 0.15 wt% Weston 619 was produced using a 1.25 inch single screw extruder. Sheets consisting of the blend were then produced using a 3.5 inch single screw extruder. A sheet was extruded continuously, gauged to a thickness of 118 mil and then various sheets were sheared to size. The glass transition temperature was measured on one sheet and was 99°C. Sheets were then conditioned at 50% relative humidity and 600C for 4 weeks. The moisture level was measured to be 0.25 wt%. Sheets were subsequently thermoformed into a female mold having a draw ratio of 2.5:1 using a Brown thermoforming machine. The thermoforming oven heaters were set to 70/60/60% output using top heat only. Sheets were left in the oven for various amounts of time in order to determine the effect of sheet temperature on the part quality as shown in the table below. Part quality was determined by measuring the volume of the thermoformed part, calculating the draw, and visually inspecting the thermoformed part. The draw was calculated as the part volume divided by the maximum part volume achieved in this set of experiments (Example A). The thermoformed part was visually inspected for any blisters and the degree of blistering rated as none (N), low (L), or high (H). The results below demonstrate that these thermoplastic sheets with a glass transition temperature of 99°C can be thermoformed under the conditions shown below, as evidenced by the production of sheets having greater than 95% draw and no blistering, without predrying the sheets prior to thermoforming.
Figure imgf000317_0001
NA = not applicable. A value of zero indicates that the sheet was not formed because it did not pull into the mold (likely because it was too cold).
Example 20 — Comparative Example
[00613] A miscible blend consisting of 40 wt% Teijin L-1250 polycarbonate,
59.85 wt% PCTG 25976, and 0.15 wt% Weston 619 was produced using a 1.25 inch single screw extruder. Sheets consisting of the blend were then produced using a 3.5 inch single screw extruder. A sheet was extruded continuously, gauged to a thickness of 118 mil and then various sheets were sheared to size. The glass transition temperature was measured on one sheet and was 1050C. Sheets were then conditioned at 50% relative humidity and 600C for 4 weeks. The moisture level was measured to be 0.265 wt%. Sheets were subsequently thermoformed into a female mold having a draw ratio of 2.5:1 using a Brown thermoforming machine. The thermoforming oven heaters were set to 70/60/60% output using top heat only. Sheets were left in the oven for various amounts of time in order to determine the effect of sheet temperature on the part quality as shown in the table below. Part quality was determined by measuring the volume of the thermoformed part, calculating the draw, and visually inspecting the thermoformed part. The draw was calculated as the part volume divided by the maximum part volume achieved in this set of experiments (Examples 8A to 8E). The thermoformed part was visually inspected for any blisters and the degree of blistering rated as none (N), low (L)1 or high (H). The results below demonstrate that these thermoplastic sheets with a glass transition temperature of 1050C can be thermoformed under the conditions shown below, as evidenced by the production of sheets having greater than 95% draw and no blistering, without predrying the sheets prior to thermoforming.
Figure imgf000318_0001
Example 21 — Comparative Example
[00614] A miscible blend consisting of 50 wt% Teijin L-1250 polycarbonate,
49.85 wt% PCTG 25976, and 0.15 wt% Weston 619 was produced using a 1.25 inch single screw extruder. A sheet was extruded continuously, gauged to a thickness of 118 mil and then various sheets were sheared to size. The glass transition temperature was measured on one sheet and was 1110C. Sheets were then conditioned at 50% relative humidity and 600C for 4 weeks. The moisture level was measured to be 0.225 wt%. Sheets were subsequently thermoformed into a female mold having a draw ratio of 2.5:1 using a Brown thermoforming machine. The thermoforming oven heaters were set to 70/60/60% output using top heat only. Sheets were left in the oven for various amounts of time in order to determine the effect of sheet temperature on the part quality as shown in the table below. Part quality was determined by measuring the volume of the thermoformed part, calculating the draw, and visually inspecting the thermoformed part. The draw was calculated as the part volume divided by the maximum part volume achieved in this set of experiments (Examples A to D). The thermoformed part was visually inspected for any blisters and the degree of blistering rated as none (N), low (L), or high (H). The results below demonstrate that these thermoplastic sheets with a glass transition temperature of 111°C can be thermoformed under the conditions shown below, as evidenced by the production of sheets having greater than 95% draw and no blistering, without predrying the sheets prior to thermoforming.
Figure imgf000319_0001
NA = not applicable. A value of zero indicates that the sheet was not formed because it did not pull into the mold (likely because it was too cold).
Example 22 — Comparative Example
[00615] A miscible blend consisting of 60 wt% Teijin L-1250 polycarbonate,
39.85 wt% PCTG 25976, and 0.15 wt% Weston 619 was produced using a 1.25 inch single screw extruder. Sheets consisting of the blend were then produced using a 3.5 inch single screw extruder. A sheet was extruded continuously, gauged to a thickness of 118 mil and then various sheets were sheared to size. The glass transition temperature was measured on one sheet and was 117°C. Sheets were then conditioned at 50% relative humidity and 600C for 4 weeks. The moisture level was measured to be 0.215 wt%. Sheets were subsequently thermoformed into a female mold having a draw ratio of 2.5:1 using a Brown thermoforming machine. The thermoforming oven heaters were set to 70/60/60% output using top heat only. Sheets were left in the oven for various amounts of time in order to determine the effect of sheet temperature on the part quality as shown in the table below. Part quality was determined by measuring the volume of the thermoformed part, calculating the draw, and visually inspecting the thermoformed part. The draw was calculated as the part volume divided by the maximum part volume achieved in this set of experiments (Example A). The thermoformed part was visually inspected for any blisters and the degree of blistering rated as none (N), low (L), or high (H). The results below demonstrate that these thermoplastic sheets with a glass transition temperature of 117°C cannot be thermoformed under the conditions shown below, as evidenced by the inability to produce sheets having greater than 95% draw and no blistering, without predrying the sheets prior to thermoforming.
Figure imgf000320_0001
Example 23 — Comparative Example
[00616] A miscible blend consisting of 65 wt% Teijin L-1250 polycarbonate,
34.85 wt% PCTG 25976, and 0.15 wt% Weston 619 was produced using a 1.25 inch single screw extruder. Sheets consisting of the blend were then produced using a 3.5 inch single screw extruder. A sheet was extruded continuously, gauged to a thickness of 118 mil and then various sheets were sheared to size. The glass transition temperature was measured on one sheet and was 1200C. Sheets were then conditioned at 50% relative humidity and 60βC for 4 weeks. The moisture level was measured to be 0.23 wt%. Sheets were subsequently thermoformed into a female mold having a draw ratio of 2.5:1 using a Brown thermoforming machine. The thermoforming oven heaters were set to 70/60/60% output using top heat only. Sheets were left in the oven for various amounts of time in order to determine the effect of sheet temperature on the part quality as shown in the table below. Part quality was determined by measuring the volume of the thermoformed part, calculating the draw, and visually inspecting the thermoformed part. The draw was calculated as the part volume divided by the maximum part volume achieved in this set of experiments (Example A). The thermoformed part was visually inspected for any blisters and the degree of blistering rated as none (N), low (L), or high (H). The results below demonstrate that these thermoplastic sheets with a glass transition temperature of 1200C cannot be thermoformed under the conditions shown below, as evidenced by the inability to produce sheets having greater than 95% draw and no blistering, without predrying the sheets prior to thermoforming.
Figure imgf000321_0001
Example 24 — Comparative Example
(00617] A miscible blend consisting of 70 wt% Teijin L-1250 polycarbonate,
29.85 wt% PCTG 25976, and 0.15 wt% Weston 619 was produced using a 1.25 inch single screw extruder. Sheets consisting of the blend were then produced using a 3.5 inch single screw extruder. A sheet was extruded continuously, gauged to a thickness of 118 mil and then various sheets were sheared to size. The glass transition temperature was measured on one sheet and was 123°C. Sheets were then conditioned at 50% relative humidity and 600C for 4 weeks. The moisture level was measured to be 0.205 wt%. Sheets were subsequently themnoformed into a female mold having a draw ratio of 2.5:1 using a Brown thermoforming machine. The thermoforming oven heaters were set to 70/60/60% output using top heat only. Sheets were left in the oven for various amounts of time in order to determine the effect of sheet temperature on the part quality as shown in the table below. Part quality was determined by measuring the volume of the themnoformed part, calculating the draw, and visually inspecting the thermoformed part. The draw was calculated as the part volume divided by the maximum part volume achieved in this set of experiments (Examples A and B). The thermoformed part was visually inspected for any blisters and the degree of blistering rated as none (N), low (L), or high (H). The results below demonstrate that these thermoplastic sheets with a glass transition temperature of 123°C cannot be thermoformed under the conditions shown below, as evidenced by the inability to produce sheets having greater than 95% draw and no blistering, without predrying the sheets prior to thermoforming.
Figure imgf000322_0001
NA = not applicable. A value of zero indicates that the sheet was not formed because it did not pull into the mold (likely because it was too cold).
Example 25 — Comparative Example
[00618] Sheets consisting of Teijin L-1250 polycarbonate were produced using a 3.5 inch single screw extruder. A sheet was extruded continuously, gauged to a thickness of 118 mil and then various sheets were sheared to size. The glass transition temperature was measured on one sheet and was 149°C. Sheets were then conditioned at 50% relative humidity and 600C for 4 weeks. The moisture level was measured to be 0.16 wt%. Sheets were subsequently thermoformed into a female mold having a draw ratio of 2.5:1 using a Brown thermoforming machine. The thermoforming oven heaters were set to 70/60/60% output using top heat only. Sheets were left in the oven for various amounts of time in order to determine the effect of sheet temperature on the part quality as shown in the table below. Part quality was determined by measuring the volume of the thermoformed part, calculating the draw and visually inspecting the thermoformed part. The draw was calculated as the part volume divided by the maximum part volume achieved in this set of experiments (Example A). The thermoformed part was visually inspected for any blisters and the degree of blistering rated as none (N), low (L)1 or high (H). The results below demonstrate that these thermoplastic sheets with a glass transition temperature of 149°C cannot be thermoformed under the conditions shown below, as evidenced by the inability to produce sheets having greater than 95% draw and no blistering, without predrying the sheets prior to thermoforming.
Figure imgf000323_0001
NA = not applicable. A value of zero indicates that the sheet was not formed because it did not pull into the mold (likely because it was too cold).
Example 26
[00619] This example illustrates the preparation of polyesters comprising at least one thermal stabilizer, reaction products thereof, and mixtures thereof, resulting in improved stability of the polyester melts during processing. [00620] A variety of polyesters were prepared as described below from 100 mole% dimethyl terephthalate (DMT), 1 ,4-cyclohexanedimethanol (CHDM), and 2,2,4,4-tetramethyl-i ,3-cyclobutanediol (TMCD). The mole% of TMCD for the experiments of this example is reported in Table 12 below, with the glycol balance being CHDM. The DMT was purchased from Cape Industries, the CHDM (min. 98 %) and the TMCD (min. 98 %) were from Eastman Chemical Company. The tin compound was either dimethyltin oxide (from Strem Chemical Co. or Gelest, Inc.) or butyltin-tris-2-ethylhexonate (from Aldrich or Arkema). The phosphorus compound was triphenyl phosphate (TPP, from Aldrich (98 %) or FERRO, Corp.). Unless otherwise indicated below, the source of phosphorous was added upfront, with the rest of the polyester reagents. The cis/trans ratio of the CHDM was as described above while the cis/trans ratio of the TMCD is reported in Table 12. Table 12
Composition and inherent viscosity for the polyesters of Example 26
Figure imgf000324_0001
1 butyltin tris-2-ethylhexanoate was used as the source of tin
2 dimethyl tin oxide was used as the source of tin
[00621] The data in Table 13 shows that the stability of polymer melts for Comparative Examples A to D was not deemed acceptable if the same conditions were to be used at a pilot-pant or commercial scale. In contrast, experiments having appropriate ratios of tin/phosphorous produced stable melts, suitable for scale up processes. Table 13
Properties of the polyesters of Example 26
Figure imgf000325_0001
NM = not measured
{00622] The melt level stability reported in Table 13 is based on the following scale:
1 Stable melt levels, limited off-gassing, similar to conventional polyesters where excess glycols slowly boil off
Relatively stable melt levels but some additional void/bubbles compared to 1 above.
Unstable melt levels during vacuum levels, heavy foaming and frothing leading to high void volumes (bubbles that increase melt overall volume), unstable off-gassing, melt level surges that were kept from overflowing flask only with adjustment of stirring rate or by having stirrer above level of melt to push down and break up the foam. Too unstable to scale up dependably.
Very unstable melt levels during vacuum levels, excessive foaming and frothing leading to high void volumes (bubbles that increase melt overall volume), unstable off-gassing, melt level surges that overflowed out of flask and frequently pushed melt/foam into the gas space in vacuum system. Frequently, it was not possible to complete run (greater than 50% of duplicate runs could not be completed for this level of stability).
[00623] The visual grading reported in Table 13 is based on the following scale:
Figure imgf000327_0001
[00624] Example 26S and Example 26T are comparative examples. Example 26S represents a polyester prepared in a similar manner to Example 29A below with no phosphorus thermal stabilizer, having an IV of 0.54 dL/g and containing 100 mole % terephthalic acid residues, 43.8 mole % TMCD residues and 56.2 mole %CHDM acid residues. This polyester was prepared using butyltin tris-2- ethyfhexanoate was used as the source of tin catalyst (Sn=216 ppm)at 2900C final finisher temperature and having color values L*=60.97, b*=9.02, and a*=- 0.89. Example 26T represents a commercial Kelvx polymer containing 65 mole % terephthalic acid residues, 35 mole % isophthalic acid residues, and 100 mole % 1 ,4-cyclohexanedimethanol residues.
[00625] The polyesters of this example were prepared in a 500 ml round bottom flask fitted with a stirrer and a polymer head that allowed both a nitrogen purge and vacuum when necessary. Raw materials were weighed into the flask for a 0.4 mole run (polymer repeat unit = 274 grams/mole): 0.400 moles of DMT (77.6 grams), 0.224 moles of CHDM (32.3 grams) and 0.256 moles of TMCD (36.8 grams) and 0.112 g butyltin tris-2-ethylhexanoate or 0.0314 g dimethyl tin oxide (as reported in Table 12), such that there was approximately 200 ppm tin metal in the final polymer, but were modified accordingly for other target concentrations, such as 100 ppm Sn. The amounts of TMCD and CHDM were modified accordingly to produce the polyester of Example 26, in which the target TMCD concentration was 20 mol percent.
[00626] The glycol/acid ratio was 1.2/1 with the excess being 2% CHDM and the rest of the 20% excess being TMCD. The catalyst was weighed into the flask, either as a solid or liquid. Triphenyl phosphate was weighed into the flask as a solid in the amount recited in Table 12 for each experiment. 100 ppm (0.0109g as a liquid) of tetramethyl ammonium hydroxide (TMAH) was used in the preparation of Example 26N.
[00627] The set points and data collection were facilitated by a Camile process control system. Once the reactants were melted, stirring was initiated and slowly increased as indicated below in the corresponding Camile sequences. The temperature of the reactor also gradually increased with run time. [00628] The ester exchange and polycondensation reactions were carried out in the same 500 ml flask. The blade of the stirrer was moved up to the top of the melt during the processing of the polyesters of Example 26A and Example 26B to beat down the foam layer. The temperature/pressure/stir rate sequence controlled by the Camile software for each example is reported in the following tables. The final polymerization temperature (Pz Temp.) for the experiments of this Example ranged from 265°C to 2900C and is reported in Table 12.
[00629] Camile Sequence for Example 26A to Example 26L
Figure imgf000329_0001
[00630] Camile Sequence for Example 26M to Example 26O
Figure imgf000329_0002
[00631] Camile Sequence for Example 26P
Viscosity constrained sequence , low vacuum
Stage Time (minutes) 335RiBi Mature i G >r VaSuύm'(tBfrF. " Stirfihgϊ(RRM){ !
1 3 200 760 0
2 0.1 200 760 25
3 2 200 760 25
4 0.1 200 760 100
5 1 200 760 100
6 0.1 200 760 200
7 90 200 760 200
8 0.1 210 760 200
9 120 210 760 200
10 5 245 760 50
11 3 245 375 50
12 30 245 375 50
13 3 250 20 50
14 30 250 20 50
15 3 255 5 25
16 110 255 5 25
17 3 265 0.2 25
18 110 265 0.2 25
19 2 265 400 0
20 1 265 760 0
[00632] Camile Sequence for Example 26Q Viscosity constrained sequence , low vacuum
Figure imgf000330_0001
[00633] Camile Sequence tor i example 26R
Figure imgf000331_0001
Example 27
[00634] This example illustrates the preparation of polyesters comprising at least one thermal stabilizer, reaction products thereof, and mixtures thereof, employing different process conditions from Example 26, resulting in improved stability of the polyester melts during processing.
[00635] A variety of polyesters were prepared as described below from 100 mole% DMT, CHDM, and TMCD. The mole% of TMCD for the experiments of this example is reported in Table 14 below, with the glycol balance being CHDM. The DMT, CHDM, and TMCD were of the same origin as in Example 26. The catalyst was dimethyltin oxide (Strem Chemical Co., Batch B4058112), butyltin- tris-2-ethylhexonate (Aldrich, Batch 06423CD, or Arkema), or dibutyl tin oxide (Arkema). The thermal stabilizer was triphenyl phosphate, also with the same origin as in Example 26. Unless otherwise indicated below, the source of phosphorous was added upfront, with the rest of the polyester reagents. The cis/trans ratio of the CHDM was as described above while the cis/trans ratio of the TMCD is reported in Table 14. The polyesters of Example 27A and Example 27E were not prepared with TPP. Table 14
Composition and inherent viscosity for the polyesters of Example 27
Figure imgf000332_0001
1 butyltin tris-2-ethylhexanoate was used as the source of tin
2 dimethyl tin oxide was used as the source of tin
3 dibutyl tin oxide was used as the source of tin
[00636] The data in Table 15 shows that the stability of polymer melts can be enhanced by modifying process conditions such as final polymerization temperature, rate of vacuum being created in the reaction vessel, the time under vacuum, among other, as reported below. The melt level stability and the visual grading reported in Table 15 are based on the scales disclosed in Example 26. Table 15
Properties of the polyesters of Example 27
Figure imgf000333_0001
NM = not measured
Example 27 A
[00637] A 500 ml round bottom flask was charged with 0.4 moles of DMT (77.6 grams), 0.224 moles of CHDM (32.3 grams), 0.256 moles of TMCD (36.8 grams), and 0.0460 grams of dibutyl tin oxide. The flask was equipped with a stainless steel stirrer and polymer head that allowed both nitrogen purge and vacuum capabilities. The flask was immersed in a Belmont metal bath at 2000C and stirred at 25 RPM until the contents melted. The stirring was increased to 200 RPM and these conditions were held for 3 hours and 15 minutes. The temperature was increased to 22O0C and these conditions held for an additional 30 minutes. The temperature was increased to 29O0C over 20 minutes. After 2900C was obtained, the pressure was reduced from atmosphere to a set point (SP) of 0.3 over 15 minutes. Stirring was decreased as the viscosity increased to a minimum of 15 RPM. The lowest vacuum reading measured was 0.70 (even though the SP was 0.3) and the total time under vacuum was 30 minutes. [00638] The rest of the polyesters of this example were prepared in a 500 ml round bottom flask fitted with a stirrer and a polymer head that allowed both a nitrogen purge and vacuum when necessary. Raw materials were weighed into the flask for a 0.4 mole run (polymer repeat unit = 274 grams/mole): 0.400 moles of DMT (77.6 grams), 0.224 moles of CHDM (32.3 grams) and 0.256 moles of TMCD (36.8 grams) and 0.112 g butyltin tris-2-ethylhexanoate, 0.0314 g dimethyl tin oxide, or 0.0460 g dibutyl tin oxide (as reported in Table 14). These values assume a target concentration of 200 ppm Sn in the final polymer and were adjusted accordingly for other target concentrations. The actual tin concentration for each polyester in this example is reported in Table 14 [00639] . The glycol/acid ratio for all but two runs in this example was 1.2/1 with the excess being 2% CHDM and the rest of the 20% excess being TMCD. The glycol/acid ratio for Example 27H was 1.1/1, with the excess being TMCD. The glycol/acid ratio for Example 27I was 1.05/1 , with the excess being TMCD. The catalyst was weighed into the flask, either as a solid or liquid. Triphenyl phosphate was weighed into the flask as a solid in the amounts recited in Table 14. The TPP in Example 27K was added late from a methanol solution. [00640] The set points and data collection were facilitated by a Camile process control system. Once the reactants were melted, stirring was initiated and slowly increased as indicated below in the corresponding Camile sequences. The temperature of the reactor also gradually increased with run time. [00641] The ester exchange and polycondensation reactions were carried out in the same 500 ml flask. The temperature/pressure/stir rate sequence controlled by the Camile software for each example is reported in the following tables. The final polymerization temperature (Pz Temp.) for the experiments of this Example ranged from 265°C to 2900C and is reported in Table 14.
[00642] Camile Sequence for Example 27B to Example 27D
Figure imgf000335_0001
[00643] Camile Sequence for Example 27E
Figure imgf000336_0001
[00645] Camile Sequence for Example 27H and Example 271
Figure imgf000337_0001
[00646] Camile Sequence for Example 27J and Example 27K
Figure imgf000337_0002
Example 28
[00647] This example illustrates the preparation of polyesters utilizing different thermal stabilizers and showing their effect on the stability of the polyester melts during processing.
[00648] A variety of polyesters were prepared as described below from 100 mole% DMT, and different concentrations of CHDM, and TMCD. The mole% of TMCD for the experiments of this example is reported in Table 16 below, with the glycol balance being CHDM. The DMT, CHDM, and TMCD were of the same origin as in Example 26. The catalyst was either dimethyltin oxide (Strem Chemical Co., Batch B4058112) or butyltin-tris-2-ethylhexonate (Aldrich, Batch 06423CD). The thermal stabilizer is indicated in Table 16 and was chosen from Merpol A (an octyl alcohol phosphate ester mixture from DuPont), triethylphosphate (Aldrich), lrgafos 168 (tris(2,4-di-tert-butylphenyl)phosphate, Ciba Specialty Chemicals), Doverphos 9228 (CAS# 154862-43-8, bis(2,4- dicumylphenyl) pentaerythritol diphosphite, Dover), Weston 619g (CAS# 85190- 63-2, 2-propanol, 1 ,1',1"-nitrilotris-, mixt. with 3,9-bis(octadecyloxy)-2,4,8,10- tetraoxa-3,9-diphosphaspiro[5.5]undecane, GE SC), triphenylphosphine oxide (Aldrich), triphenylphosphate (Aldrich or FERRO), NaH2PO4 (Aldrich), Zn3(PO4J2 (Aldrich), and H3PO4 (Aldrich). Unless otherwise indicated in Table 16, the source of phosphorous was added upfront, with the rest of the polyester reagents. The cis/trans ratio of the CHDM was as described above while the cis/trans ratio of the TMCD is reported in Table 16.
Table 16
Composition and inherent viscosity for the polyesters of Example 28
Figure imgf000339_0001
1 butyltin tris-2-ethylhexanoate was used as the source of tin
2 dimethyl tin oxide was used as the source of tin
3 dibutyl tin oxide was used as the source of tin
4 polymer was hazy due to insolubles
[00649] The data in Table 17 shows the stability of polymer melts using different sources of phosphorous as thermal stabilizers. The data shows that phosphate esters and phosphorous compounds that can be hydrolyzed to phosphate esters provide stable melt and acceptable polyester products. The melt level stability and the visual grading reported in Table 17 are based on the scales disclosed in Example 26.
Table 17
Properties of the polyesters of Example 28
Figure imgf000340_0001
EE = ester exchange; NM = not measured; NN = nor noted
The sample of Example R was hazy so visual grading may have been impaired Example 28A to Example 28H
[00650] These polyesters were prepared as follows. A mixture of 77.6 g (0.4 mol) dimethyl terephthalate, 32.3 g (0.224 mol) 1 ,4-cyclohexanedimethanol, 36.8 g (0.256 mol) 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol was placed in a 500-ml flask equipped with an inlet for nitrogen, a metal stirrer, and a short distillation column. The catalyst was also added to the reaction flask. The amount and type of catalyst are in detailed in Table 16. The phosphorus compounds were also added to the reaction flask. The theoretical and measured amount of phosphorus compound for each experiment in this example is detailed in Table 16. The flask was placed in a Wood's metal bath already heated to 2000C. The temperature/pressure/stir rate sequence were controlled by the Camile software for each experiment and is reported below. In some cases, where noted (Example 28D and Example 28H), the phosphorus additive was added after ester exchange. This corresponds to the end of stage 9 in the corresponding Camile sequence.
Example 28I to Example 28S
[00651] These polyesters were prepared as follows. A mixture of 77.6 g (0.4 mol) dimethyl terephthalate, 33.31 g (0.231 mol) 1 ,4-cyclohexanedimethanol, 35.91 g (0.249 mol) 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol was placed in a 500- ml flask equipped with an inlet for nitrogen, a metal stirrer, and a short distillation column. The catalyst was also added to the reaction flask. The amount and type of catalyst are in detailed in Table 16. The source of phosphorous was weighed into the flask in the amounts recited in Table 16, which includes the theoretical and measured amount of phosphorus compound for each experiment. The flask was placed in a Wood's metal bath already heated to 2000C. The temperature/pressure/stir rate sequence controlled by the Camile software for each example is reported below.
[00652] The glycol/acid ratio for all experiments in this example was 1.2/1 with the excess being 2% CHDM and the rest of the 20% excess being TMCD. The catalyst was weighed into the flask, either as a solid or liquid. [00653] The set points and data collection were facilitated by a Camile process control system. Once the reactants were melted, stirring was initiated and slowly increased as indicated below in the corresponding Camile sequences. The temperature of the reactor also gradually increased with run time. [00654] The temperature/pressure/stir rate sequence controlled by the Camile software for each example is reported in the following tables. The final polymerization temperature (Pz Temp.) for the experiments of this example was 265°C.
[00655] Camile Sequence for Example 28A and Example 28B
Figure imgf000342_0001
[00656] Camile Sequence for Example 28C to Example 28S
Viscosity constrained sequence low vacuum
?iPm<Bf(Sϊinrα:i mm wmmmmmm
1 3 200 760 0
2 0.1 200 760 25
3 2 200 760 25
4 0.1 200 760 100
5 1 200 760 100
6 0.1 200 760 200
7 90 200 760 200
8 0.1 210 760 200
9 120 210 760 200
10 5 245 760 50
11 3 245 375 50
12 30 245 375 50
13 3 250 20 50
14 30 250 20 50
15 3 255 3 25
16 110 255 3 25
17 3 265 1 25
18 110 265 1 25
19 2 265 400 0
20 1 265 760 0
Example 29
[Θ06S7] This example illustrates the preparation of polyesters at a pilot plant scale comprising at least one thermal stabilizer, reaction products thereof, and mixtures thereof, resulting in improved stability of the polyester melts during processing..
[00658] A variety of polyesters were prepared as described below from 100 mole% DMT, CHDM1 and TMCD. The mole% of TMCD for the experiments of this example is reported in Table 18 below, with the glycol balance being CHDM. The DMT, CHDM, and TMCD were of the same origin as in Example 26. The catalyst was either dimethyltin oxide (Strem Chemical Co., Batch B4058112) or butyltin-tris-2-ethylhexonate (Aldrich, Batch 06423CD). The thermal stabilizer was triphenyl phosphate (TPP) (Aldrich). Unless otherwise indicated below, the source of phosphorous was added upfront, with the rest of the polyester reagents. The cis/trans ratio of the CHDM was as described above while the cis/trans ratio of the TMCD is reported in Table 18. Table 18
Composition and inherent viscosity for the polyesters of Example 29
Figure imgf000344_0001
1 butyltin tris-2-ethylhexanoate was used as the source of tin
2 dimethyl tin oxide was used as the source of tin
Example 29A
[00659] 84.96 lbs (198.83 gram-mol) dimethyl terephthalate, 35.38 lbs (111.54 gram-mol) 1 ,4-cyclohexanedimethanol, 40.30 lbs (127.06 gram-mol) 2,2,4 ,4-tetramethyl-1,3-cyclobutanediol were reacted together in the presence of 200 ppm of dimethyltin oxide as tin catalyst and 300 ppm triphenylphosphate (16.35 grams). The reaction was carried out under a nitrogen gas purge in an 74-gallon stainless steel pressure vessel which was fitted with a condensing column, a vacuum system, and a HELICONE-type agitator. With the agitator running at 25 RPM1 the reaction mixture temperature was increased to 2500C and the pressure was increased to 20 psig. The reaction mixture was held for 2 hours at 2500C and 20 psig pressure. The pressure was then decreased to 0 psig at a rate of 3 psig/minute. The agitator speed was then decreased to 15 RPM, the temperature of the reaction mixture was then increased to 2700C1 and the pressure was decreased to <1-mm. The reaction mixture was held at 2700C and a pressure of <1 mm of Hg for 3.75 hours. The pressure of the vessel was then increased to 1 atmosphere using nitrogen gas. The molten polymer was then extruded from the pressure vessel using an extrusion die. The extruded polymer strands were then pulled through a cold water bath to cool them after which the strands were pelletized. The pelletized polymer had an inherent viscosity of 0.553. NMR analysis showed that the polymer was composed of 53.9 mol% 1 ,4-cyclohexanedimethanol moiety and 46.1 mol% 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol moiety. The polymer had color values of: L*= 80.50, a*= -1.51, and b*= 4.27.
[00660] Example 29B to Example 29D were prepared in a similar manner to Example 29A, having the composition disclosed in Table 18. [00661] Example 29E represents PCTG Eastar DN001 from Eastman Chemical Company, having an IV of 0.73 dl_/g with a nominal composition of 100 mole% terephthalic acid residues, 62 mole% CHDM residues and 38 mole % ethylene glycol residues. Example 29F represents the polycarbonate Makrolon 2608 from Bayer, with a nominal composition of 100 mole% bisphenol A residues and 100 mole% diphenyl carbonate residues. Example 29G represents an Eastman Chemical Company polyester, with a nominal composition of 100 mole% terephthalic acid residues, 55 mole% CHDM residues and 45 mole % TMCD residues. Example 29H represents PETG Eastar 6763 from Eastman Chemical Company, with a nominal composition of 100 mole% terephthalic acid, 31 mole% cyclohexanedimenthanol (CHDM) and 69 mole % ethylene glycol.
Example 291
[00662] The polyester of Example 291 is a blend of 10 different polyesters, each prepared in the following manner. 84.96 lbs (198.83 gram-mol) dimethyl terephthalate were reacted in the presence of 200 ppm of tin catalyst (as butyltin- tris-ethylhexanoate) with 50.45 to 51.46-lbs (159.06 162.24 gram-mol, depednign on the batch) 1 ,4-cyclohexanedimethanol and 24.22 to 31.53-lbs (76.36 to 99.41 gram-mol, also depending on the batch) 2,2,4,4-tetramethyM ,3-cyclobutanediol. The reaction was carried out under a nitrogen gas purge in an 74-gallon stainless steel pressure vessel fitted with a condensing column, a vacuum system, and a HELICONE-type agitator, to provide glycol/dimethyl terephthalate molar ratios of 1.2/1 to 1.3/1. With the agitator running at 25 RPM, the reaction mixture temperature was increased to 2500C and the pressure was increased to 20 psig. The reaction mixture was held for 2 hours at 2500C and 20 psig pressure. The pressure was then decreased to 0 psig at a rate of 3 psig/minute. The agitator speed was then decreased to 15 RPM, the temperature of the reaction mixture was then increased to 260-2700C, and the pressure was decreased to 90 mm of Hg. The reaction mixture was held at 260-2700C and 90-mm pressure for 1 hour. The temperature of the reaction mixture was then increased to 275-2900C and the pressure was decreased to ≤1 mm of Hg. The reaction mixture was held at 275-290°C and <1 mm of Hg for 1.5-3 hours to complete the polycondensation stage. The pressure of the pressure vessel was then increased to 1 atmosphere using nitrogen gas. The molten polymer was then extruded from the pressure vessel into a cold water bath. The cooled, extruded polymer was ground to pass a 6-mm screen.
[00663] Ten separate batches were prepared using the above procedure. The following table contains the NMR compositions, IV values, and color values that were obtained on the 10 batches. The final polyester blend had an IV of 0.63 dl_/g, a 100 mole% terephthalic acid residues and a target of 20 mole % TMCD residues and 80 mole% CHDM residues.
Figure imgf000346_0001
[00664] Plaques (4 inch x 4 inch x 1/8 inch thick) were prepared in a Toyo 110 injection molding press from the polyesters of Table 18. Pellets of each polyester were feed into the press and heated to the temperatures reported in Table 19. The residence time of the molten polymer in the barrel before injection is also reported in Table 19. Once the part had cooled sufficiently, it was visually analyzed and the splay generated during the injection molding process was recorded.
[00665] The data in Table 19 shows the effect of molding conditions on splay generation in injection-molded plaques made out of the polyesters in Table 18.
Table 19 Splay generation in molded parts made out of the polyesters of Example 29
Figure imgf000347_0001
Splay Ratings: none (0). light (1), moderate (2), heavy (3); NA = not available [00666] The data in Table 20 shows the quality of films made out of the polyesters in Table 18.
(00667] The polymers were extruded on a 1.5" Killion extruder using a General Purpose screw. The polymers were extruded at temperatures of 572°F (3000C) and 527°F (275°C). The following extruder conditions were used for each polymer in the 572°F extrusions:
Figure imgf000348_0001
[00668] The following extruder conditions were used for each polymer in the 527°F extrusions:
Figure imgf000348_0002
Table 20
Quality of films made out of the polyesters of Example 29
Figure imgf000349_0001
Figure imgf000349_0002
[00669] It can be clearly seen from a comparison of the data in the above relevant working examples that the polyesters of the present invention offer an advantage over the commercially available polyesters with regard to at least one of bubbling, splaying, color formation, foaming, off-gassing, and erratic melt levels in the polyester's production and processing systems. [00670] The invention has been described in detail with reference to the embodiments disclosed herein, but it will be understood that variations and modifications can be effected within the spirit and scope of the invention.

Claims

CLAIMSWhat is claimed is:
1. An LCD film or sheet comprising at least one polyester composition comprising:
(I) at least one polyester, which comprises:
(a) a dicarboxylic acid component comprising: i) 70 to 100 mole % of terephthalic acid residues;
H) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising: i) 10 to 99 mole % of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol residues; and ii) 1 to 90 mole % of 1 ,4-cyclohexanedimethanol residues, and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.1 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.5 g/100 ml at 25°C; and wherein the polyester has a Tg of from 90 to 200°C.
2. The LCD film or sheet of Claim 1 , wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dl_/g.
3. The LCD film or sheet of Claim 1 , wherein the inherent viscosity of the polyester is from 0.35 to 1.0 dL/g.
4. The LCD film or sheet of Claim 1 , wherein the inherent viscosity of the polyester is from 0.35 to 0.75 dL/g.
5. The LCD film or sheet of Claim 1 , wherein the inherent viscosity of the polyester is from 0.50 to 0.80 dL/g.
6. The LCD film or sheet of Claim 1 , wherein the inherent viscosity of the polyester is from greater than 0.60 to 0.75 dL/g.
7. The LCD film or sheet of Claim 1 , wherein the inherent viscosity of the polyester is from 0.69 to 0.75 dl_/g.
8. The LCD film or sheet of Claim 1 , wherein the inherent viscosity of the polyester is from 0.61 to 0.68 dL/g.
9. The LCD film or sheet of Claim 1 , wherein the inherent viscosity of the polyester is from 0.60 to 0.64 dl_/g.
10. The LCD film or sheet of Claim 1 , wherein the polyester has a Tg of 95 to 1800C.
11. The LCD film or sheet of Claim 1 , wherein the polyester has a Tg of 95 to 1500C.
12. The LCD film or sheet of Claim 1 , wherein the polyester has a Tg of 100 to 125°C.
13. The LCD film or sheet of Claim 1 , wherein the polyester has a Tg of 105 to 120°C.
14. The LCD film or sheet of Claim 1 , wherein the polyester has a Tg of 105 to 115°C.
15. The LCD film or sheet of Claim 1 , wherein the polyester has a Tg of 105 to 112°C.
16. The LCD film or sheet of Claim 1, wherein the polyester has a Tg of 114 to 120°C.
17. The LCD film or sheet of Claim 1 , wherein the polyester has a Tg of 108 to 1200C.
18. The LCD film or sheet of Claim 1 , wherein the polyester has a Tg of 108 to 116°C.
19. The LCD film or sheet of Claim 1 , wherein the glycol component of the polyester comprises 15 to 40 mole % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol residues and 60 to 85 mole % 1 ,4-cyclohexanedimethanol residues.
20. The LCD film or sheet of Claim 1 , wherein the glycol component of the polyester comprises 20 to 35 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol residues and 65 to 80 mole % 1 ,4-cyclohexanedimethanol residues.
21. The LCD film or sheet of Claim 1 , wherein the glycol component of the polyester comprises 20 to 25 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol residues and 75 to 80 mole % 1 ,4-cyclohexanedimethanol residues.
22. The LCD film or sheet of Claim 1 , wherein the glycol component of the polyester comprises 30 to 35 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol residues and 65 to 70 mole % 1 ,4-cyclohexanedimethanol residues.
23. The LCD film or sheet of Claim 21 , wherein the polyester has a Tg of 105 to 112°C.
24. The LCD film or sheet of Claim 22, wherein the polyester has a Tg of 114 to 1200C.
25. The LCD film or sheet of Claim 20, wherein the polyester has a Tg of 105 to 1200C.
26. The LCD film or sheet of Claim 20, wherein the polyester has a Tg of 108 to 116°C.
27. The LCD film or sheet of Claim 1 , wherein the at least one thermal stabilizer is chosen from dibutylphenyl phosphate, triphenyl phosphate, isocetyl diphenyl phosphate, and 2-ethylhexyl diphenyl phosphate.
28. The LCD film or sheet of Claim 1 , wherein the at least one thermal stabilizer is chosen from triphenyl phosphate and Merpol A.
29. The LCD film or sheet of Claim 1 , wherein the at least one thermal stabilizer is present in the amount of about 1 ppm to about 5000 ppm based on the total weight of the polyester.
30. The LCD film or sheet of Claim 1 , wherein the at least one thermal stabilizer is present in the amount of about 1 ppm to about 100 ppm based on the total weight of the polyester.
31. The LCD film or sheet of Claim 1 , wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is from 1.01-1.5/1.0.
32. The LCD film or sheet of Claim 1 , wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is from 1.05-1.3/1.0.
33. The LCD film or sheet of Claim 1 , wherein the weight ratio of total tin atoms to total phosphorus atoms in the final polyester is 2-10:1.
34. The LCD film or sheet of Claim 1 , wherein the weight ratio of total tin atoms to total phosphorus atoms in the final polyester is 6-8:1.
35. The LCD film or sheet of Claim 1 , wherein the weight ratio of total tin atoms to total phosphorus atoms in the final polyester is 7:1.
36. The LCD film or sheet of Claim 1 , wherein the amount of tin atoms present in the final polyester can be from 25 to 400 ppm tin atoms based on the weight of the final polyester.
37. The LCD film or sheet of Claim 1 , wherein the amount of tin atoms present in the final polyester can be from 50 to 125 ppm tin atoms based on the weight of the final polyester.
38. The LCD film or sheet of Claim 1 , wherein the amount of phosphorus atoms present in the final polyester can be from 6 to 20 ppm phosphorus atoms based on the weight of the final polyester.
39. The LCD film or sheet of Claim 1 , wherein the dicarboxylic acid component comprises 80 to 100 mole % of terephthalic acid residues.
40. The LCD film or sheet of Claim 1 , wherein the dicarboxylic acid component comprises 90 to 100 mole % of terephthalic acid residues.
41. The LCD film or sheet of Claim 1 , wherein the dicarboxylic acid component comprises 95 to 100 mole % of terephthalic acid residues.
42. The LCD film or sheet of Claim 1 , wherein the polyester comprises from 0.1 to 25 mole % of 1 ,3-propanediol residues, 1 ,4-butanediol residues, or mixture thereof.
43. The LCD film or sheet of Claim 1 , wherein the polyester comprises from 0.1 to 10 mole % of 1 ,3-propanediol residues, 1 ,4-butanediol residues, or mixture thereof.
44. The LCD film or sheet of Claim 1 , wherein the polyester comprises from 0.01 to 15 mole % of ethylene glycol residues.
45. The LCD film or sheet of Claim 1 , wherein the 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol residues is a mixture comprising about 50 mole % of cis- 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol residues and about 50 mole % of trans- 2,2,4,4-tetramethyM ,3-cyclobutanediol residues.
46. The LCD film or sheet of Claim 1 , wherein the 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol residues is a mixture comprising greater than 55 mole % of cis-2,2,4,4-tetramethyl-1 ,3-cyclobutanediol residues and less than 45 mole % of trans-2,2,4,4-tetramethyl-1 ,3-cyclobutanediol residues.
47. The LCD film or sheet of Claim 1 , wherein the 2,2,4 ,4-tetramethyl- 1 ,3-cyclobutanediol is a mixture comprising about 50 mole % of cis-2,2,4,4- tetramethyl-1,3-cyclobutanediol and about 50 mole % of trans-2,2,4,4- tetramethyl-1,3-cyclobutanediol, and wherein the dicarboxylic acid component comprises 80 to 100 mole % of terephthalic acid residues.
48. The LCD film or sheet of Claim 1 , wherein the polyester composition comprises at least one polymer chosen from poly(etherimides), polyphenylene oxides, poly(phenylene oxide)/polystyrene blends, polystyrene resins, polyphenylene sulfides, polyphenylene sulfide/sulfones, polyester- carbonates), polycarbonates, polysulfones; polysulfone ethers, poly(ether- ketones), polyamides, polystyrene, polystyrene copolymers, styrene acrylonitrile copolymers, acrylonitrile butadiene styrene copolymers, poly(methylmethacrylate), and acrylic copolymers.
49. The LCD film or sheet of Claim 1 , wherein the polyester composition comprises at least one polycarbonate.
50. The LCD film or sheet of Claim 1 , wherein the polyester comprises residues at least one branching agent an amount of 0.01 to 10 weight % based on the total weight of the polyester.
51. The LCD film or sheet of Claim 1 , wherein the melt viscosity of the polyester is less than 30,000 poise as measured at 1 radian/second on a rotary melt rheometer at 2900C.
52. The LCD film or sheet of Claim 1 , wherein the polyester has a crystallization half-time of greater than 10 minutes at 1700C.
53. The LCD film or sheet of Claim 1 , wherein the polyester has a crystallization half-time of greater than 50 minutes at 1700C.
54. The LCD film or sheet of Claim 1 , wherein the polyester has a crystallization half-time of greater than 100 minutes at 1700C.
55. The LCD film or sheet of Claim 1 , wherein the polyester has a crystallization half-time of greater than 1,000 minutes at 1700C.
56. The LCD film or sheet of Claim 1 , wherein the polyester has a crystallization half-time of greater than 10,000 minutes at 1700C.
57. The LCD film or sheet of Claim 1 , wherein the polyester composition has a density of less than 1.2 g/ml at 23°C.
58. The LCD film or sheet of Claim 1 , wherein the yellowness index of the polyester according to ASTM D-1925 is less than 50.
59. The LCD film or sheet of Claim 1 , wherein the polyester has a notched Izod impact strength of at least 3 ft-lbs/in at 23°C according to ASTM D256 with a 10-mil notch in a 1 /8-inch thick bar.
60. The LCD film or sheet of Claim 1 , wherein the polyester has a notched Izod impact strength of at least 10 ft-lbs/in at 230C according to ASTM D256 with a 10-mil notch in a 1 /4-inch thick bar.
61. The LCD film or sheet of Claim 1 , wherein the polyester comprises the residue of at least one catalyst comprising a tin compound or a reaction product thereof.
62. The LCD film or sheet of Claim 1 , wherein the LCD film or sheet is formed by extrusion.
63. The LCD film or sheet of Claim 1 , wherein the LCD film or sheet is produced by calendering.
64. The LCD film or sheet of Claim 1 , wherein the LCD film or sheet is produced by compression molding.
65. The LCD film or sheet of Claim 1 , wherein the LCD film or sheet is produced by solution casting.
66. The LCD film or sheet of Claim 1 , wherein the LCD film or sheet is formed by injection molding.
67. The LCD film or sheet of Claim 1 , wherein the LCD film or sheet is chosen from diffuser films, diffuser sheets, and compensation films.
68. The LCD film or sheet of Claim 1 , wherein the LCD film or sheet is a component in a brightness enhancing film.
69. The LCD film or sheet of Claim 1 , wherein the polyester has a Tg of 100 to 150βC and the LCD film or sheet is a compensation film.
70. The LCD film or sheet of Claim 1 , wherein the polyester has a Tg of 100 to 1500C and the LCD film or sheet is chosen from a diffuser film and a diffuser sheet.
71. The LCD film or sheet of Claim 1 , wherein the polyester has a Tg of 100 to 1500C and the LCD film or sheet is a component in a brightness enhancing film.
72. The LCD film or sheet of Claim 71 , wherein the glycol component of the polyester comprises 20 to 35 mole % 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol residues and 65 to 80 mole % 1 ,4-cyclohexanedimethanol residues.
73. The LCD film or sheet of Claim 1 , wherein the LCD film is a retardation film.
74. The LCD film or sheet of Claim 1 , wherein the LCD film is a polarizer protection film.
75. An LCD film or sheet comprising at least one polyester composition comprising:
(I) at least one polyester, which comprises:
(a) a dicarboxylic acid component comprising: i) 70 to 100 mole % of terephthalic acid residues; ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising: i) 15 to 70 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and ii) 30 to 85 mole % of 1 ,4-cyclohexanedimethanol residues, and
(II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.35 to 0.80 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.5 g/100 ml at 25°C; and wherein the polyester has a Tg of from 95 to 1500C.
76. The LCD film or sheet of Claim 75, wherein the inherent viscosity of the polyester is from 0.0.50 to 0.80 dL/g.
77. The LCD film or sheet of Claim 75, wherein the inherent viscosity of the polyester is from 0.55 to 0.75 dL/g.
78. The LCD film or sheet of Claim 75, wherein the inherent viscosity of the polyester is from 0.60 to 0.75 dL/g.
79. The LCD film or sheet of Claim 75, wherein the LCD film or sheet is chosen from compensation films.
80. The LCD film or sheet of Claim 75, wherein the LCD film or sheet is a component in a brightness enhancing film.
81. The LCD film or sheet of Claim 63, wherein the LCD film is a retardation film.
82. The LCD film or sheet of Claim 63, wherein the LCD film is a polarizer protection film.
83. An LCD film or sheet comprising at least one polyester composition comprising at least one polyester, which comprises:
(a) a dicarboxylic acid component comprising: i) 70 to 100 mole % of terephthalic acid residues; ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising: i) 40 to 70 mole % of 2,2 ,4,4-tetramethyM ,3-cyclobutanediol residues; and ii) 30 to 60 mole % of 1 ,4-cyclohexanedimethanol residues, wherein the total mole % of the dicarboxylic acid component is 100 mole %, the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.55 to 0.80 dL/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.5 g/100 ml at 25°C; and wherein the polyester has a Tg of from 100 to 125°C.
84. The LCD film or sheet of Claim 83, wherein the inherent viscosity of the polyester is from 0.55 to 0.75 dL/g.
85. The LCD film or sheet of Claim 83, wherein the inherent viscosity of the polyester is from 0.60 to 0.75 dL/g.
86. The LCD film or sheet of Claim 83, wherein the LCD film or sheet is chosen from diffuser films and diffuser sheets.
87. The LCD film or sheet of Claim 83, wherein the LCD film or sheet is a component in a brightness enhancing film.
88. The LCD film or sheet of Claim 83, wherein the LCD film is a retardation film.
89. The LCD film or sheet of Claim 83, wherein the LCD film is a polarizer protection film.
90. A process for making an LCD film or sheet comprising making at least one polyester comprising the following steps:
(I) heating a mixture at at least one temperature chosen from 150°C to 2500C, under at least one pressure chosen from the range of 0 psig to 75 psig wherein said mixture comprises:
(a) a dicarboxylic acid component comprising:
(i) 70 to 100 mole % of terephthalic acid residues;
(ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and
(b) a glycol component comprising:
(i) 1 to 99 mole % of 2,2,4,4-tetramethyM ,3- cyclobutanediol residues; and
(ii) 1 to 99 mole % of cyclohexanedimethanol residues; wherein the molar ratio of glycol component/dicarboxylic acid component added in Step (I) is 1.0-1.5/1.0; wherein the mixture in Step (I) is heated in the presence of: (i) at least one catalyst comprising at least one tin compound, and, optionally, at least one catalyst chosen from titanium, gallium, zinc, antimony, cobalt, manganese, magnesium, germanium, lithium, aluminum compounds and an aluminum compound with lithium hydroxide or sodium hydroxide; and (ii) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof;
(II) heating the product of Step (I) at a temperature of 2300C to 3200C for 1 to 6 hours, under at least one pressure chosen from the range of the final pressure of Step (I) to 0.02 torr absolute, to form a final polyester; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; wherein the inherent viscosity of the final polyester is from 0.35 to 1.2 dl_/g as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C; and wherein the final polyester has a Tg from 85 to 2000C.
PCT/US2007/010551 2006-05-23 2007-05-02 Lcd films or sheets comprising films comprising polyester compositions formed from 2,2,4,4,-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol WO2007139653A1 (en)

Priority Applications (19)

Application Number Priority Date Filing Date Title
PCT/US2007/011150 WO2007139663A1 (en) 2006-05-23 2007-05-09 Polyester compositions which comprise cyclobutanediol and certain thermal stabilizers, and/or reaction products thereof
JP2009534566A JP2010507717A (en) 2006-10-27 2007-07-10 Polyester composition
KR1020097008484A KR20090079212A (en) 2006-10-27 2007-07-10 Polyester compositions which comprise cyclobutanediol, ethylene glycol, titanium, and phosphorus with improved color and manufacturing processes therefor
BRPI0717755-0A BRPI0717755A2 (en) 2006-10-27 2007-07-10 polyester composition, blend, and article of manufacture
TW096125125A TW200819497A (en) 2006-10-27 2007-07-10 Polyester compositions which comprise cyclobutanediol, cyclohexanedimethanol, and ethylene glycol and manufacturing processes therefor
TW096125089A TW200819496A (en) 2006-10-27 2007-07-10 Polyester compositions which comprise cyclobutanediol, ethylene glycol, titanium, and phosphorus with improved color and manufacturing processes therefor
CA002666571A CA2666571A1 (en) 2006-10-27 2007-07-10 Polyester compositions which comprise tetramethylcyclobutanediol, cyclohexanedimethanol and ethylene glycol, and manufacturing processes therefor
PCT/US2007/015701 WO2008051320A1 (en) 2006-10-27 2007-07-10 Polyester compositions which comprise tetramethylcyclobutanediol, cyclohexanedimethanol and ethylene glycol, and manufacturing processes therefor
EP07836026A EP2074174A1 (en) 2006-10-27 2007-07-10 Polyester compositions which comprise tetramethylcyclobutanediol, cyclohexanedimethanol and ethylene glycol, and manufacturing processes therefor
PCT/US2007/015702 WO2008054559A1 (en) 2006-10-27 2007-07-10 Certain polyester compositions which comprise tetramethylcyclobutanediol, cyclohexanedimethanol and high trans- cyclohexanedicarboxylic acid
EP07836029A EP2074158A1 (en) 2006-10-27 2007-07-10 Polyester compositions which comprise cyclobutanediol, ethylene glycol, titanium, and phosphorus with improved color and manufacturing processes therefor
JP2009534565A JP2010507716A (en) 2006-10-27 2007-07-10 Polyester composition containing tetramethylcyclobutanediol, cyclohexanedimethanol and ethylene glycol and method for producing the same
MX2009003375A MX2009003375A (en) 2006-10-27 2007-07-10 Polyester compositions which comprise tetramethylcyclobutanediol, cyclohexanedimethanol and ethylene glycol, and manufacturing processes therefor.
MX2009003369A MX2009003369A (en) 2006-10-27 2007-07-10 Polyester compositions which comprise cyclobutanediol, ethylene glycol, titanium, and phosphorus with improved color and manufacturing processes therefor.
CA002666585A CA2666585A1 (en) 2006-10-27 2007-07-10 Polyester compositions
KR1020097008483A KR20090079211A (en) 2006-10-27 2007-07-10 Polyester compositions which comprise tetramethylcyclobutanediol, cyclohexanedimethanol and ethylene glycol, and manufacturing processes therefor
PCT/US2007/015713 WO2008054560A2 (en) 2006-10-27 2007-07-10 Certain polyester compositions which comprise tetramethylcyclobutanediol, cyclohexanedimethanol and high trans-cyclohexanedicarboxylic acid
BRPI0717761-5A BRPI0717761A2 (en) 2006-10-27 2007-07-10 polyester composition, polymer blend, and article of manufacture
PCT/US2007/015704 WO2008051321A1 (en) 2006-10-27 2007-07-10 Polyester compositions which comprise cyclobutanediol, ethylene glycol, titanium, and phosphorus with improved color and manufacturing processes therefor

Applications Claiming Priority (40)

Application Number Priority Date Filing Date Title
US11/439,062 2006-05-23
US11/439,340 US20060270806A1 (en) 2005-05-26 2006-05-23 Miscible high Tg polyester/polymer blend compositions and films formed therefrom
US11/439,340 2006-05-23
US11/439,062 US20060270773A1 (en) 2005-05-26 2006-05-23 Polyester-polycarbonate blends for diffuser sheets with improved luminance
USPCT/US06/41917 2006-10-27
USPCT/US06/42291 2006-10-27
PCT/US2006/042292 WO2007053549A1 (en) 2005-10-28 2006-10-27 Polyester compositions containing cyclobutanediol having a certain combination of inherent viscosity and moderate glass transition temperature and articles made therefrom
US11/588,527 2006-10-27
US11/588,527 US20100087574A1 (en) 2005-10-28 2006-10-27 Polyester compositions containing cyclobutanediol having a certain combination of inherent viscosity and moderate glass transition temperature and articles made therefrom
PCT/US2006/041917 WO2007053434A1 (en) 2005-10-28 2006-10-27 Polyester compositions which comprise cyclobutanediol and certain thermal stabilizers, and/or reaction products thereof
PCT/US2006/042069 WO2007053460A1 (en) 2005-10-28 2006-10-27 Polyester compositions which comprise cyclobutanediol and at least one phosphorus compound
US11/588,906 US8193302B2 (en) 2005-10-28 2006-10-27 Polyester compositions which comprise cyclobutanediol and certain phosphate thermal stabilizers, and/or reaction products thereof
PCT/US2006/042293 WO2007053550A1 (en) 2005-10-28 2006-10-27 Polyester compositions containing cyclobutanediol having high glass transition temperature and articles made therefrom
USPCT/US06/42069 2006-10-27
US11/588,883 US20070105993A1 (en) 2005-10-28 2006-10-27 Polyester compositions which comprise cyclobutanediol and at least one phosphorus compound
US11/588,883 2006-10-27
USPCT/US06/42292 2006-10-27
USPCT/US06/42293 2006-10-27
US11/588,458 2006-10-27
US11/588,554 US20070100125A1 (en) 2005-10-28 2006-10-27 Polyester compositions comprising minimal amounts of cyclobutanediol
US11/588,458 US20070100122A1 (en) 2005-10-28 2006-10-27 Polyester compositions containing cyclobutanediol and articles made therefrom
US11/588,524 US20100096589A1 (en) 2005-10-28 2006-10-27 Polyester compositions containing low amounts of cyclobutanediol and articles made therefrom
US11/588,524 2006-10-27
PCT/US2006/042291 WO2007053548A2 (en) 2005-10-28 2006-10-27 Polyester compositions comprising minimal amounts of cyclobutanediol
US11/588,907 US20070106054A1 (en) 2005-10-28 2006-10-27 Polyester compositions containing cyclobutanediol having a certain combination of inherent viscosity and high glass transition temperature and articles made therefrom
US11/588,907 2006-10-27
US11/588,906 2006-10-27
US11/588,554 2006-10-27
US11/635,433 2006-12-07
US11/635,434 US7737246B2 (en) 2005-12-15 2006-12-07 Polyester compositions which comprise cyclobutanediol, cyclohexanedimethanol, and ethylene glycol and manufacturing processes therefor
US11/635,434 2006-12-07
US11/635,433 US20070142511A1 (en) 2005-12-15 2006-12-07 Polyester compositions which comprise cyclobutanediol ethylene glycol, titanium, and phosphorus with improved color and manufacturing processes therefor
US11/706,791 US20070232779A1 (en) 2006-03-28 2007-02-14 Certain polyester compositions which comprise cyclohexanedimethanol, moderate cyclobutanediol, cyclohexanedimethanol, and high trans cyclohexanedicarboxylic acid
US11/706,476 US20070232778A1 (en) 2006-03-28 2007-02-14 Certain polyester compositions which comprise cyclobutanediol, cyclohexanedimethanol, and high trans-cyclohexanedicarboxylic acid
US11/706,476 2007-02-14
US11/706,791 2007-02-14
PCT/US2007/007632 WO2007126855A1 (en) 2006-03-28 2007-03-27 Polyester compositions which comprise cyclobutanediol and certain thermal stabilizers, and/or reaction products thereof
PCT/US2007/007532 WO2007123631A1 (en) 2006-03-28 2007-03-27 Polyester compositions which comprise cyclobutanediol and at least one phosphorus compound
USPCT/US2007/007632 2007-03-27
USPCT/US2007/007532 2007-03-27

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PCT/US2007/010551 WO2007139653A1 (en) 2006-05-23 2007-05-02 Lcd films or sheets comprising films comprising polyester compositions formed from 2,2,4,4,-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2007/011150 WO2007139663A1 (en) 2006-05-23 2007-05-09 Polyester compositions which comprise cyclobutanediol and certain thermal stabilizers, and/or reaction products thereof

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