WO2007001536A1 - Polyester compositions comprising minimal amounts of 2, 2, 4, 4, -tetramethyl-1, 3-cyclobutanediol - Google Patents

Polyester compositions comprising minimal amounts of 2, 2, 4, 4, -tetramethyl-1, 3-cyclobutanediol Download PDF

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Publication number
WO2007001536A1
WO2007001536A1 PCT/US2006/011701 US2006011701W WO2007001536A1 WO 2007001536 A1 WO2007001536 A1 WO 2007001536A1 US 2006011701 W US2006011701 W US 2006011701W WO 2007001536 A1 WO2007001536 A1 WO 2007001536A1
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WO
WIPO (PCT)
Prior art keywords
mole
polyester
polyester composition
residues
tetramethyl
Prior art date
Application number
PCT/US2006/011701
Other languages
English (en)
French (fr)
Inventor
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
Application filed by Eastman Chemical Company filed Critical Eastman Chemical Company
Publication of WO2007001536A1 publication Critical patent/WO2007001536A1/en

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    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/14—Greenhouses
    • A01G9/1438—Covering materials therefor; Materials for protective coverings used for soil and plants, e.g. films, canopies, tunnels or cloches
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    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
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    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10018—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising only one glass sheet
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    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/16—Two dimensionally sectional layer
    • Y10T428/162—Transparent or translucent layer or section
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24058—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in respective layers or components in angular relation
    • Y10T428/24074—Strand or strand-portions
    • Y10T428/24091—Strand or strand-portions with additional layer[s]
    • Y10T428/24099—On each side of strands or strand-portions
    • Y10T428/24107—On each side of strands or strand-portions including mechanically interengaged strands, strand-portions or strand-like strips
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31507—Of polycarbonate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31652—Of asbestos
    • Y10T428/31663—As siloxane, silicone or silane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]

Definitions

  • the present invention generally relates to polyester compositions comprising a polyester composition made from terephthalic acid, or an ester thereof, or mixtures thereof, 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol, ethylene glycol, and/or 1 ,4-cyclohexanedimethanol, having a certain combination of two or more of good impact strengths, good glass transition temperature (T 9 ), toughness, certain inherent and/or intrinsic viscosities, good 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.
  • T 9 good glass transition temperature
  • PCT PoIy(1 ,4-cyclohexylenedimethylene) terephthalate
  • a polyester based solely on terephthalic acid or an ester thereof and 1 ,4- 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.
  • ethylene glycol- 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. 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 is included in the formulation to provide for long crystallization half-times.
  • copolyesters made from terephthalic acid, 1 ,4-cyclohexanedimethanol, and ethylene glycol 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.
  • 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 and/or intrinsic viscosities, high melt viscosities and/or high Tgs (glass transition temperatures) such that the equipment used in industry can be insufficient to manufacture or post polymerization process these materials. Also, compositions containing higher amounts of 2,2,4,4-tetramethyl-1 ,3- cyclobutanediol are not useful for many end use applications for example, certain types of bottles and/or containers because of the high glass transition temperature and/or because of the low crystal lininity or no crystallinity of such polyesters.
  • polyester compositions comprising at least one polymer having a combination of two or more properties, chosen from at least one of the following: toughness, good glass transition temperatures, good impact strength, hydroiytic stability, chemical resistance, good ductile to brittle transition temperatures, good color, and clarity, lower density, and/or thermoformability of polyesters while retaining processability on the standard equipment used in the industry.
  • this invention relates to a polyester composition
  • a polyester composition comprising at least one polyester which comprises:
  • 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
  • this invention relates to a polyester composition
  • a polyester composition comprising at least one polyester which comprises:
  • 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
  • this invention relates to a polyester composition
  • a polyester composition comprising at least one polyester which comprises:
  • 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
  • this invention relates to a polyester composition
  • a polyester composition comprising at least one polyester which comprises:
  • 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
  • a glycol component comprising: i) 0.01 to 10 mole % or 0.01 to 5 mole % of 2,2,4,4-tetramethyl-
  • the Tg can be from 70 to 100 0 C; or 70 to 95°C; or 70 to 9O 0 C; or 70 to 100°C; or 70 to 95°C; or 70 to 9O 0 C; 75 to 100°C; or 75 to 95 0 C; or 75 to 90°C; 80 to 105°C; or 80 to 100°C; or 80 to 95°C; or 80 to 90°C.
  • the invention relates to a polyester composition
  • a polyester composition comprising at least one polyester which comprises:
  • 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
  • a glycol component comprising: i) 0.01 to 10 mole % of 2,2 ,4,4-tetramethyl-1 ,3-cyclobutanediol residues; and ii) optionally, 1 ,4-cyclohexanedimethanol residues, ii) ethylene glycol; wherein the total mole % of the dicarboxylic acid component is 100 mole
  • this invention relates to a polyester composition
  • a polyester composition comprising at least one polyester which comprises:
  • 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
  • a glycol component comprising: i) 0.01 to 5 mole % of 2,2,4,4-tetramethyl-i ,3-cyclobutanediol residues; and ii) optionally, 1 ,4-cyclohexanedimethanol residues, ii) ethylene glycol; wherein the total mole % of said dicarboxylic acid component is 100 mole
  • 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.
  • the polyesters useful in the invention can contain no 1 ,4-cyclohexanedimethanol residues.
  • the polyester compositions useful in the invention contain at least one thermal stabilizer and/or reaction products thereof.
  • 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.
  • the polyesters useful in the invention contain at least one branching agent without regard to the method or sequence in which it is added.
  • the polyesters useful in the invention are made from no 1 , 3-propanediol, or, 1 , 4-butanediol, either singly or in combination.
  • 1 , 3-propanediol or 1 , 4-butanediol, either singly or in combination may be used in the making of the polyesters useful in this 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 %.
  • 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-2,2,4,4-tetramethyl-1 ,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, where
  • the polyester compositions are useful in many end use applications including but not limited to extruded, calendered, and/or molded articles including but not limited to injection molded articles, thermoformed articles, extruded articles, cast extrusion articles, profile extrusion articles, melt spun articles, extrusion molded articles, injection blow molded articles, injection stretch blow molded articles, extrusion blow molded articles and extrusion stretch blow molded articles.
  • 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.
  • Figure 1 is a graph showing the effect of comonomer on the fastest crystallization half-times of modified PCT copolyesters.
  • Figure 2 is a graph showing the effect of comonomer on the brittle-to- ductile transition temperature (Tbd) in a notched Izod impact strength test (ASTM
  • Figure 3 is a graph showing the effect of 2,2,4,4-tetramethyl-i ,3- cyclobutanediol composition on the glass transition temperature (Tg) of the copolyester.
  • polyesters and/or polyester composition(s) can have a unique combination of two or more physical properties such as moderate or high impact strengths, high glass transition temperatures, chemical resistance, hydrolytic 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.
  • the polyesters have a unique combination of the properties 1 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 the polyester compositions which comprise the polyester(s) as disclosed herein.
  • 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.
  • 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 tern "glycol" as used herein includes, but is not limited to, diols, glycols, and/or multifunctional hydroxyl compounds.
  • 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.
  • residue means any organic structure incorporated into a polymer through a polycondensation and/or an esterification reaction from the corresponding monomer.
  • peating unit means an organic structure having a dicarboxylic acid residue and a diol residue bonded through a carbonyloxy group.
  • the dicarboxylic acid residues may be derived from a dicarboxylic acid monomer or its associated acid halides, esters, salts, anhydrides, or mixtures thereof.
  • 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, or mixtures thereof, useful in a reaction process with a diol to make polyester.
  • diacid includes includes multifunctional acids, for example, branching agents.
  • 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, or mixtures thereof or residues thereof useful in a reaction process with a diol to make polyester.
  • ⁇ ,n h Inherent viscosity at 25 0 C at a polymer concentration of 0.5 g/ 100 mL of 60% phenol and 40% 1 ,1 ,2,2- tetrachloroethane by weight
  • the intrinsic viscosity is the limiting value at infinite dilution of the specific viscosity of a polymer. It is defined by the following equation:
  • Calibration Factor Accepted Ih.V. of Reference Material / Average of
  • the corrected Ih.V. based on calibration with standard reference materials, is calculated as follows:
  • the intrinsic viscosity (ItV. or ⁇ int) may be estimated using the Billmeyer equation as follows:
  • terephthalic acid may be used as the starting material.
  • dimethyl terephthalate may be used as the starting material.
  • mixtures of terephthalic acid and dimethyl terephthalate may be used as the starting material and/or as an intermediate material.
  • 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 hydroxyl 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.
  • a polyester containing 30 mole% isophthalic acid 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.
  • a polyester containing 30 mole% 2,2,4,4 ⁇ tetramethy!-1 ,3-cyclobutanediol means the polyester contains 30 mole% 2,2,4,4-tetramethyl-1 ,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-cyclobutanediol residues among every 100 moles of diol residues.
  • the Tg of the polyesters useful in the invention can be at least one of the following ranges: 60 to 12O 0 C; 60 to 115°C; 60 to 1 10 0 C; 60 to 105°C; 60 to 100 0 C; 60 to 95°C; 60 to 90°C; 60 to 85°C; 60 to 80 0 C; 60 to 75°C; 65 to 12O 0 C; 65 to 115°C; 65 to 1 10 0 C; 65 to 105°C; 65 to 100 0 C; 65 to 95°C; 65 to 9O 0 C; 65 to 85 0 C; 65 to 80°C; 65 to 75 0 C; 70 to 120°C; 70 to 115°C; 70 to 110 0 C; 70 to 105°C; 70 to 100°C; 70 to 95°C; 70 to 9O 0 C; 70 to 80°C; 70 to 75°C; 75 to 120°C; 75 to 115°C; 75 to 110 0 C; 70 to 105°C; 70 to 100°C; 70
  • 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-tetramethyl-1 ,3- cyclobutanediol residues, 0.01 to greater than 95 mole %of ethylene glycol residues, and 0 to 99.98 mole % of 1 , 4-cyclohexanedimethanol; 0.01 to less than 5 mole % of 2,2,4 ,4-tetramethyl-1 ,3-cyclobutanediol residues, 0.01 to greater than 99.98 mole %of ethylene glycol residues
  • 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-tetramethyl-i ,3-cyclobutanediol residues, 89 to 94.99 mole % of ethylene glycol residues, and 5 to 10 mole % of 1 , 4-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 1 , A-
  • 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
  • the remainder of the glycol component can include, but is not limited, to any amount of 1 ,4-cyclohexanedimethanol and/or ethylene glycol so long as the total amount of the glycol component equals 100 mole %.
  • the polyesters useful in the polyester compositions of the invention may be made from 1 ,3-propanediol, 1 ,4- butanediol, or mixtures thereof.
  • compositions of the invention made from 1 ,3-propanediol, 1 ,4-butanediol, or mixtures thereof can possess at least one of the Tg ranges described herein, at least one of the intrinsic viscosity ranges described herein, and/or at least one of the glycol or diacid ranges described herein.
  • the polyesters made from 1 ,3-propanediol or 1 ,4-butanediol or mixtures thereof may also be made from 1 ,4-cyclohexanedmethanol in at least one of the following amounts: from 0.1 to 95 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 mole %; 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
  • the polyesters useful in the invention may exhibit at least one of the following intrinsic viscosities as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.5 g/100 ml at 25 0 C: 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 d
  • the polyesters useful in the invention may exhibit at least one of the following intrinsic viscosities as determined in 60/40 (wt/wt) phenol/ tetrachloroethane at a concentration of 0.5 g/100 ml at 25 0 C: 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 dL/g; 0.45 to 0.68 dL/g; 0.45 to less than 0.68 dL/g; 0.45 to 0.65
  • the molar ratio of cis/trans 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol can vary from the pure form of each or mixtures thereof.
  • 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 % trans; or 40 to 60 mole % cis and 60 to 40 mole % trans; or 50 to 70 mole % trans and 50 to 30 % cis; or 50 to 70 mole % cis and 50 to 30 % trans; or 60 to 70 mole % cis and 30 to 40 mole % trans; or greater than 70 mole % cis and less
  • polyesters useful in the polyester composition(s) of the invention can possess at least one of the intrinsic 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 polyesters useful in the container(s) of 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 container(s) of the invention can possess at least one of the intrinsic 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.
  • 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.
  • terephthalic acid residues can make up a portion or all of the dicarboxylic acid component used to form the present polyester at a concentration of at least 70 mole %, such as at least 80 mole %, at least 90 mole % at least 95 mole %, at least 99 mole %, or even 100 mole %.
  • terephthalic acid and “dimethyl terephthalate” are used interchangeably herein.
  • dimethyl terephthalate is part or all of the dicarboxylic acid component used to make the polyesters useful in the present invention.
  • the terms :"terephthalic acid” and “dimethyl terephthalate” are used interchangeably herein.
  • 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.
  • the dicarboxylic acid component of the polyester 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.
  • 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.
  • 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.
  • 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.
  • the modifying aromatic dicarboxylic acid is isophthalic acid.
  • the amount of isophthalic acid is present in an amount from 0.01 to 5 mole%.
  • the aliphatic dicarboxylic 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, malonic, succinic, glutaric, adipic, pimelic, suberic, azelaic and dodecanedioic dicarboxylic acids. Certain embodiments can also comprise 0.01 or more mole %, such as 0.1 to 30 mole %, 1 to 30, 5 to 30 mole %, or 10 to 30 mole % of one or more modifying aliphatic dicarboxylic acids.
  • Yet another embodiment contains 0 mole % modifying aliphatic dicarboxylic acids.
  • the amount of one or more modifying aliphatic dicarboxylic acids can range from any of these preceding endpoint values including, for example, from 0.01 to 10 mole % and from 0.1 to 10 mole %.
  • the total mole % of the dicarboxylic acid component is 100 mole %.
  • 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.
  • the esters are chosen from at least one of the following: methyl, ethyl, propyl, isopropyl, and phenyl esters.
  • the 1 ,4-cyclohexanedimethanol may be cis, trans, or a mixture thereof, for example, a cis/trans ratio of 60:40 to 40:60.
  • the trans-1 ,4-cyclohexanedimethanol can be present in an amount of 60 to 80 mole %.
  • the glycol component of the polyester portion of the polyester composition 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 1 ,4- cyclohexanedimethanol or ethylene glycol; 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.
  • 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 or more mole %, such as 0.1 or more mole %, 1 or more mole %, 5 or more mole %, or 10 or more mole % of one or more modifying glycols. Thus, if present, it is contemplated that the amount of one or more modifying glycols can range from any of these preceding endpoint values including, for example, from 0.01 to 15 mole % and from 0.1 to 10 mole %.
  • Modifying glycols useful in the polyesters useful in the invention refer to diols other than 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and 1 ,4- cyclohexanedimethanol or ethylene glycol and can contain 2 to 16 carbon atoms.
  • suitable modifying glycols include, but are not limited to, 1 ,2- propanediol, 1,3-propanediol, neopentyl glycol, 1 ,4-butanediol, 1 ,5-pentanediol, 1 ,6-hexanediol, p-xylene glycol, or mixtures thereof.
  • the modifying glycols include, but are not limited to, 1 ,3-propanediol and 1 ,4- butanediol.
  • ethylene glycol is excluded as a modifying diol.
  • 1 ,3-propanediol and 1 ,4-butanediol are excluded as modifying diols.
  • 2, 2-dimethyl-1 ,3-propanediol is excluded as a modifying diol.
  • 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, hydroxyl substituents, or a combination thereof.
  • 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.
  • the branching monomer or agent may be added prior to and/or during and/or after the polymerization of the polycarbonate.
  • 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.
  • 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.
  • Tg glass transition temperature
  • the polyesters useful in the invention can have a crystallization half-time of 1.5 minutes or less at 170 0 C.
  • 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.
  • 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 29O 0 C. 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 290°C.
  • 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 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 290 0 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 290°C. Viscosity at rad/sec is related to processability.
  • Typical polymers have viscosities of less than 10,000 poise as measured at 1 radian/second when measured at their processing temperature. Polyesters are typically not processed above 29O 0 C. Polycarbonate is typically processed at 29O 0 C. The viscosity at 1 rad/sec of a typical 12 melt flow rate polycarbonate is 7000 poise at 29O 0 C.
  • 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.
  • polycarbonate including but not limited to, bisphenol A polycarbonates
  • the blends can be visually clear.
  • the polyesters useful in the invention may have a yellowness index (ASTM D-1925) of less than 50 or less than 20.
  • 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 were determined using a Hunter Lab Ultrascan 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.
  • CIE International Commission on Illumination
  • 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.
  • 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.
  • the L* value for the polyesters useful in the invention can be present in one of the following ranges:
  • the polyesters useful in the invention can exhibit at least one of the following densities: a density of less than 1.2 g/ml at 23 0 C; a density of less than 1.18 g/ml at 23 0 C; a density of 0.8 to 1.3 g/ml at 23 0 C; a density of 0.80 to 1.2 g/ml at 23°C; a density of 0.80 to less than 1.2 g/ml at 23 0 C; a density of 1.0 to 1.3 g/ml at 23 0 C; a density of 1.0 to 1.2 g/ml at 23°C; a density of 1.0 g/ml to 1.1 at 23 0 C; a density of 1.13 to 1.3 g/ml at 23 0 C; a density of 1.13 to 1.2 at 23°C.
  • 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 100°C to 315°C at a pressure of 0.1 to
  • the invention relates to polyester compositions comprising a polyester produced by a process comprising:
  • step (II) heating the initial polyester of step (I) at a temperature of 240 to 32O 0 C for 1 to 4 hours;
  • Suitable catalysts for use in this process include, but are not limited to, organo-zinc or tin compounds.
  • organo-zinc or tin compounds include, but are not limited to, organo-zinc or tin compounds.
  • the use of this type of catalyst is well known in the art.
  • Examples of catalysts useful in the present invention include, but are not limited to, zinc acetate, butyltin tris-2-ethylhexanoate, dibutyltin diacetate, and dibutyltin oxide.
  • Other catalysts may include, but are not limited to, those based on titanium, zinc, manganese, lithium, germanium, and cobalt.
  • Catalyst amounts can range from 10 ppm to 20,000 ppm or 10 to10,000 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 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.
  • step (I) can be carried out until 50% by weight or more of the 2,2,4 ,4-tetramethyl-i ,3-cyclobutanediol has been reacted.
  • Step (I) may be carried out under pressure, ranging from atmospheric pressure to 100 psig.
  • 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.
  • Step (II) and Step (III) 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.
  • the invention further relates to a polyester product made by the process described above.
  • the invention further relates to a polymer blend.
  • the blend comprises:
  • Suitable examples of the polymeric components include, but are not limited to, nylon, other polyesters other 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 ⁇ dimethylpheny!ene 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); other polyesters; polyphenylene sulfides; polyphenylene sulfide/sulfones; poly(ester-carbon
  • the blends can be prepared by conventional processing techniques known in the art, such as melt blending or solution blending.
  • 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.
  • polyester compositions useful in the invention also contemplate the exclusion of polycarbonate as well as the inclusion of polycarbonate.
  • 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.
  • suitable carbonate precursors include, but are not limited to, carbonyl bromide, carbonyl chloride, or 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(tolyi)carbonate; di(naphthyl)carbonate; di(chloronaphthyl)carbonate, or mixtures thereof; and bis- haloformates of dihydric phenols.
  • 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.
  • 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.
  • the catalysts 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, benzyltrimethy! ammonium chloride and quaternary phosphonium compounds such as, for example, n-butyltriphenyl phosphonium bromide and methyltriphenyl phosphonium bromide.
  • quaternary phosphonium compounds such as, for example, n-butyl
  • 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.
  • Copolyestercarbonates useful in this invention can be available commercially and/or may be prepared by known methods in the art.
  • polyester compositions and the polymer blend compositions useful in the polyester compositions of this 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.
  • 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.
  • 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.
  • Thermal stabilizers are compounds that stabilize polyesters during polyester manufacture and/or post polymerization, including but not limited to phosphorous compounds including but not limited to phosphoric acid, phosphorous acid, phosphonic acid, phosphinic acid, phosphonous acid, and various esters and salts thereof. These can be present in the polyester compositions useful in the invention.
  • the esters can be alkyl, branched alkyl, substituted alkyl, difunctional alkyl, alkyl ethers, aryl, and substituted aryl.
  • the number of ester groups present in the particular phosphorous compound can vary from zero up to the maximum allowable based on the number of hydroxyl groups present on the thermal stabilizer used.
  • thermal stabilizer is intended to include the reaction product(s) thereof.
  • 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.
  • 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.
  • the reinforcing materials include glass, such as, fibrous glass filaments, mixtures of glass and talc, glass and mica, and glass and polymeric fibers.
  • the polyesters useful in the polyester compositions of the invention have an intrinsic viscosity of at least 0.70 to 1.2 dL/g or at least
  • Melt phase polymerization can be defined as a process for increasing molecular weight of a polymer in the melt phase
  • the polyesters useful in the polyester compositions of the invention have an intrinsic viscosity of at least 0.70 to 1.2 dL/g or at least
  • Solid state polymerization is a process known to one of ordinary skill in the art.
  • the 2,2,4,4-tetramethyl-i ,3-cyclobutanedioi used to make the polyesters useful in the invention is fed to a melt processing zone for making articles of manfacture
  • the invention includes, but is not limited to, a shipping container containing particles of at least one of the polyester compositions of the invention wherein at least one of the polyesters useful in the invention has an intrinsic viscosity of at least 0.72 dL/g or at least 0.76 dL/g obtained from a melt phase polymerization-process which is not solid stated for the purpose of obtaining the stated intrinsic viscosities process.
  • polyester particles (which term includes pellets) of the invention are directly or indirectly packaged as a bulk into shipping containers, which are then shipped to customers or third parties, such as converters for converting the particles into articles such as bottle preforms or other molded articles, or as dual ovemable food trays or lids; through such procedures as injection molding or thermoforming.
  • polyester particles it is preferred to subject the polyester particles to any process embodiment described herein without solid state polymerizing the particles at any point prior to packaging the particles into shipping containers, and also preferably at any point prior to melt processing the particles (solids) to make articles.
  • a high It.V. polyester polymer in the melt phase e.g. at least 0.70 dL/g, or at least 0.72 dL/g, or at least 0.74 dL/g, or at least 0.76dL/g
  • Solid stating is commonly used for increasing the molecular weight (and the It.V) of the pellets in the solid state, usually by at least 0.05 It.V.
  • the It.V. of solid stated polyester solids ranges from 0.70 dL/g to 1.15 dL/g.
  • the crystallized pellets are subjected to a countercurrent flow of nitrogen gas heated to 18O 0 C to 220 0 C, over a period of time as needed to increase the It.V. to the desired target. In one embodiment, the It.V.
  • polyester polymer particles are not increased by more than 0.1 dL/g units, or by not more than 0.05 dL/g units, or by not more than 0.03 dL/g units, or not subjected to solid state polymerization at all prior to loading into a shipping container or prior to introducing the polyester polymer particles into an melt processing zone for making articles.
  • Shipping containers are containers used for shipping over land, sea or air. Examples include railcars, semi-tractor trailer containers, Gaylord boxes, ship hulls, or any other container which is used to transport finished polyester particles to a customer.
  • the shipping containers contain a bulk of polyester polymer particles.
  • a bulk occupies a volume of at least 3 cubic meters.
  • the bulk in the shipping container occupies a volume of at least 5 cubic meters, or at least 10 cubic meters.
  • the melt phase polyester polymers are solidified to a desired form.
  • the shape of the polyester polymer particles from the melt phase or in a shipping container is not limited, and can include regular or irregular shaped discrete pellets without limitation on their dimensions, including stars, spheres, spheroids, globoids, cylindrically shaped pellets, conventional pellets, pastilles, and any other shape, but particles are distinguished from a sheet, film, preforms, strands or fibers. These shapes regarded as articles. In one embodiment, the particles are in the shape of spheres.
  • the number average weight (not to be confused with the number average molecular weight) of the particles is not particularly limited.
  • number average weight is meant the number of particles per given unit of weight.
  • the particles have a number average weight of at least 0.10 g per 100 particles, more preferably greater than 1.0 g per 100 particles, and up to about 100 g per 100 particles.
  • the method for solidifying the polyester polymer from the melt phase process is not limited.
  • molten polyester polymer from the melt phase may be directed through a die, or merely cut, or both directed through a die followed by cutting the molten polymer.
  • a gear pump may be used as the motive force to drive the molten polyester polymer through the die.
  • the molten polyester polymer may be fed into a single or twin screw extruder and extruded through a die, optionally at a temperature of 190 ° C or more at the extruder nozzle.
  • the polyester polymer can be drawn into strands, contacted with a cool fluid, and cut into pellets, or the polymer can be peiletized at the die head, optionally underwater.
  • the polyester polymer melt is optionally filtered to remove large particulates over a designated size before being cut.
  • Any conventional hot peptization or dicing method and apparatus can be used, including but not limited to dicing, strand pelletizing and strand (forced conveyance) pelletizing, pastillators, water ring pelletizers, hot face pelletizers, underwater pelletizers and centrifuged pelletizers.
  • the polyester polymer is one which is crystallizable.
  • the method and apparatus used to crystallize the polyester polymer is not limited, and includes thermal crystallization in a gas or liquid.
  • the crystallization may occur in a mechanically agitated vessel; a fluidized bed; a bed agitated by fluid movement; an un-agitated vessel or pipe; crystallized in a liquid medium above the T 9 of the polyester polymer, preferably at 140°C to 190°C; or any other means known in the art.
  • the polymer may be strain crystallized.
  • the polymer may also be fed to a crystallizer at a polymer temperature below its Tg (from the glass), or it may be fed to a crystallizer at a polymer temperature above its T g .
  • molten polymer from the melt phase polymerization reactor may be fed through a die plate and cut underwater, and then immediately fed to an underwater thermal crystallization reactor where the polymer is crystallized underwater.
  • the molten polymer may be cut, allowed to cool to below its T 9 , and then fed to an underwater thermal crystallization apparatus or any other suitable crystallization apparatus.
  • the molten polymer may be cut in any conventional manner, allowed to cool to below its T 9 , optionally stored, and then crystallized.
  • One type of solidification technique integrates cutting with crystallization by not allowing the heat energy imparted to the polymer in the melt phase manufacture to drop below the T 9 before the polymer is both cut and crystallized to at least 20% degree of crystallinity.
  • the molten polyester polymer is directed through a die, cut at the die plate under water at high temperature and greater than atmospheric pressure, swept away from the cutter by the hot water and through a series of pipes to provide residence time to thermally crystallize the particles in the hot liquid water at a temperature greater than the T 9 of the polymer and preferably at about 130 to 18O 0 C, after which the water is separated from the crystallized particles and the particles are dried.
  • the molten polyester polymer is cut underwater, the particles are immediately separated from the liquid water after cutting, the particles are dried, and while the particles are still hot and before the temperature of the particles drops below the T 9 of the polymer and desirably while the particle temperature is above 14O 0 C, the particles are directed from the dryer onto a surface or vessel which allows the particles to form a moving bed with a bed height sufficient to allow the latent heat within the particles to crystallize the particles without the external application of a heating medium or pressurizing means.
  • a surface or vessel is desirably an at least partially enclosed vibrating conveyor, such as is available from Brookman
  • the degree of crystallinity is optionally at least 20%, or at least 25%, or at least 30%, or at least 35%, or at least 40%. In another embodiment, the degree of crystallinity does not exceed 70%, or does not exceed 65%, or does not exceed 60%.
  • the residual acetaldehyde level of the polyester polymer particles can also be reduced by any conventional technique, such as by gas stripping or the use of AA scavengers or trapping agents.
  • the residual AA level of the particles is 10 ppm or less, or 8 ppm or less, or 5 ppm or less, or 4 ppm or less, or 3 ppm or less, or 2 ppm or less, or 1 ppm or less, prior to loading into a shipping container or prior to introducing the particles into a dryer hopper associated with a melt processing zone for making articles or prior to introducing the particles into a melt processing zone for making articles.
  • the shipper container can transport particles comprising the polyester compositions of the invention from one city to another city or from one state to another state or from one country to another country.
  • the invention further relates to articles of manufacture described herein.
  • These articles of manufacture can include, but are not limited to, injection blow molded articles, injection stretch blow molded articles, extrusion blow molded articles, extrusion stretch blow molded articles.
  • Methods of making such articles include, but are not limited to, extrusion. blow molding, extrusion stretch blow molding, injection blow molding, and injection stretch blow molding.
  • the invention relates to articles of manufacture for example, including at least one article of manufacture chosen from containers, film, sheet, and/or coatings
  • the invention further relates to articles of manufacture comprising the film(s) and/or sheet(s) containing polyester compositions described herein.
  • 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.
  • the films(s) of the invention have a thickness of no more than 40 mils.
  • the sheet(s) of the invention have a thickness of no less than 20 mils.
  • the invention further relates to the film(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 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.
  • Examples of potential articles made from film and/or sheet include, but are not limited, to uniaxially stretched film, biaxially stretched film, shrink film (whether or not uniaxially or biaxially stretched).
  • the invention further relates to containers described herein.
  • the methods of forming the polyesters into containers are well known in the art.
  • the term "container” as used herein is understood to mean a receptacle in which material is held or stored.
  • Containers include but are not limited to bottles, bags, vials, tubes and jars. Applications in the industry for these types of containers include but are not limited to food, beverage, cosmetics and personal care applications.
  • the invention further relates to bottles described herein.
  • bottle as used herein is understood to mean a receptacle containing plastic which is capable of storing or holding liquid.
  • bottles include but are not limited to bottles such as baby bottles; water bottles; juice bottles; large commercial water bottles having a weight from 200 to 800 grams; beverage bottles which include but are not limited to two liter bottles, 20 ounce bottles, 16.9 ounce bottles; medical bottles; personal care bottles, carbonated soft drink bottles; hot fill bottles; water bottles; alcoholic beverage bottles such as beer bottles and wine bottles; and bottles comprising at least one handle.
  • bottles include but are not limited to injection blow molded bottles, injection stretch blow molded bottles, extrusion blow molded bottles, and extrusion stretch blow molded bottles.
  • Methods of making bottles include but are not limited to extrusion blow molding, extrusion stretch blow molding, injection blow molding, and injection stretch blow molding.
  • the invention further relates to the preforms (or parisons) used to make each of said bottles.
  • containers include, but are not limited to, containers for cosmetics and personal care applications including bottles, jars, vials and tubes; sterilization containers; buffet steam pans; food pans or trays; frozen food trays; microwaveable food trays; hot fill containers, amorphous lids or sheets to seal or cover food trays; food storage containers; for example, boxes; tumblers, pitchers, cups, bowls, including but not limited to those used in restaurant smallware; beverage containers; retort food containers; centrifuge bowls; vacuum cleaner canisters, and collection and treatment canisters.
  • wt means "weight”.
  • the inherent viscosity of the polyesters was determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.5 g/100 ml at 25°C.
  • the glass transition temperature (T 9 ) was determined using a TA DSC 2920 instrument from Thermal Analyst Instruments at a scan rate of 20°C/min according to ASTM D3418.
  • the glycol content and the cis/trans ratio of the compositions were determined by proton nuclear magnetic resonance (NMR) spectroscopy.
  • the crystallization half-time, t1/2 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, T max , 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. T max is defined as the temperature required to melt the crystalline domains of the sample (if crystalline domains are present).
  • the T max 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 T ma ⁇ 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 290 0 C to melt the crystalline domains.
  • Density was determined using a gradient density column at 23°C.
  • 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 ( ⁇ 0 ) 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.
  • the polymers were dried at a temperature ranging from 80 to 100°C 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 0 C was determined from measurements on 5 specimens.
  • 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.
  • Color values reported herein were determined using a Hunter Lab Ultrascan Spectra Colorimeter manufactured by Hunter Associates Lab Inc., Reston, Va. The color determinations were averages of values measured on either pellets of the polyesters or plaques or other items injection molded or extruded from them. They were 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.
  • CIE International Commission on Illumination
  • 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.
  • the cis/trans ratio of the 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol used in the following examples was approximately 50/50.
  • the samples had sufficiently similar inherent viscosities thereby effectively eliminating this as a variable in the crystallization rate measurements.
  • 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.
  • Example 3 A film was pressed from the ground polyester of Example 1 G at 240°C. The resulting film had an inherent viscosity value of 0.575 dL/g.
  • A is lsophthalic Acid
  • 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)
  • E is 2,2,4,4-Tetramethyl-1 ,3-cyclobutanediol (5/95 cis/trans)
  • 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-cyciohexanedimethanol residues (28/72 cis/trans).
  • 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 210 0 C.
  • the stirring speed was set to 200 RPM throughout the experiment.
  • the contents of the flask were heated at 210 0 C for 5 minutes and then the temperature was gradually increased to 29O 0 C over 30 minutes.
  • the reaction mixture was held at 29O 0 C 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 0 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.
  • 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).
  • a mixture of 77.68 g of dimethyl terephthalate, 50.77 g of 1 ,4-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 200 0 C.
  • the stirring speed was set to 200 RPM throughout the experiment.
  • the contents of the flask were heated at 200 0 C for 60 minutes and then the temperature was gradually increased to 21 O 0 C over 5 minutes.
  • the reaction mixture was held at 210°C for 120 minutes and then heated up to 280 0 C in 30 minutes. Once at 280°C, 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.
  • This example illustrates the preparation of a copolyester with a target composition of 100 mol% dimethyl terephthalate residues, 20 mol % 2,2,4,4-tetramethyI-1 ,3-cyclobutanediol residues, and 80 mol% 1 ,4-cyclohexanedimethanol residues (31/69 cis/trans).
  • This example illustrates the preparation of a copolyester with a target composition of 100 mol% dimethyl terephthalate residues, 40 mol % dimethyl isophthalate residues, and 100 mol% 1 ,4-cyclohexanedimethanol residues (28/72 cis/trans).
  • 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 21O 0 C.
  • the stirring speed was set to 200 RPM throughout the experiment.
  • the contents of the flask were heated at 210 0 C for 5 minutes and then the temperature was gradually increased to 290 0 C over 30 minutes.
  • the reaction mixture was held at 29O 0 C 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 81.2 0 C and an inherent viscosity of 0.67 dl/g. NMR analysis showed that the polymer was composed of 100 mol% 1 ,4-cyclohexanedimethanol residues and 40.2 mol% dimethyl isophthalate residues.
  • 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).
  • This example illustrates the preparation of a copolyester with a target composition of 100 moi% dimethyl terephthalate residues, 40 mol % 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol residues, and 60 mol% 1 ,4-cyclohexanedimethanol residues (31/69 cis/trans).
  • 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 210 0 C. The stirring speed was set to 200 RPM throughout the experiment.
  • the contents of the flask were heated at 210°C for 3 minutes and then the temperature was gradually increased to 260 0 C over 30 minutes.
  • the reaction mixture was held at 260 0 C for 120 minutes and then heated up to 290°C in 30 minutes.
  • 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%
  • 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-cyclobutanedioi residues (98/2 cis/trans), and 80 mol% 1 ,4-cyclohexanedimethanol residues (31/69 cis/trans).
  • 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 21 O 0 C. The stirring speed was set to 200 RPM throughout the experiment.
  • the contents of the flask were heated at 210 0 C for 3 minutes and then the temperature was gradually increased to 260 0 C over 30 minutes.
  • the reaction mixture was held at 26O 0 C for 120 minutes and then heated up to 290°C in 30 minutes.
  • 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 unreacted diols.
  • This example illustrates the preparation of a copolyester with a target composition of 100 mol% dimethyl terephthalate residues, 20 mol % 2,2,4,4-tetramethyM ,3-cyclobutanediol residues (5/95 cis/trans), and 80 mol% 1 ,4-cyclohexanedimethanol residues (31/69 cis/trans).
  • 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 210°C. The stirring speed was set to 200 RPM at the beginning of the experiment.
  • the contents of the flask were heated at 210 0 C for 3 minutes and then the temperature was gradually increased to 260 0 C over 30 minutes.
  • the reaction mixture was held at 26O 0 C for 120 minutes and then heated up to 290 0 C in 30 minutes.
  • 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.
  • 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 1 A 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.
  • Example 2D was prepared with a target tin amount of 300ppm (Dibutyltin Oxide). The final product contained 307 ppm tin.
  • the Izod impact strength undergoes a major transition in a short temperature span.
  • the Izod impact strength of a copolyester based on 38 mo!% ethylene glycol undergoes this transition between 15 and 20 0 C.
  • 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, T bd , and is a measure of toughness.
  • T b d is reported in Table 2 and plotted against mo!% comonomer in Figure 2.
  • 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.
  • C is 2,2,4,4-Tetramethyl-1 ,3-cyclobutanediol (50/50 cis/trans)
  • This example illustrates that a polyester based on 100% 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol has a slow crystallization half-time.
  • a polyester based solely on terephtha ⁇ c acid and 2,2,4,4-tetramethyl- 1 ,3-cyclobutanediol was prepared in a method similar to the method described in Example 1 A with the properties shown on Table 3. This polyester was made with 300 ppm dibutyl tin oxide. The trans/cis ratio of the 2,2,4,4-tetramethy!-1 ,3- cyclobutanediol was 65/35.
  • 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-cyclobutanedioI 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 106 0 C.
  • Sheets were then conditioned at 50% relative humidity and 60 0 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 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 106°C 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.
  • 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 106 0 C.
  • Sheets were then conditioned at 100% relative humidity and 25 0 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) 1 or high (H).
  • N none
  • L low
  • H high
  • Kelvx 201 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 100 0 C.
  • Sheets were then conditioned at 50% relative humidity and 60 0 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 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 100°C 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
  • 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 100 0 C. 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).
  • N none
  • L low
  • H high
  • 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 60 0 C 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.
  • 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.
  • 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 60 0 C 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).
  • N none
  • L low
  • H high
  • 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 1 18 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 6O 0 C 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).
  • N none
  • L low
  • H high
  • 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).
  • 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 105 0 C. Sheets were then conditioned at 50% relative humidity and 60 0 C 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), or high (H).
  • N none
  • L low
  • H high
  • 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 111 0 C. Sheets were then conditioned at 50% relative humidity and 6O 0 C 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.
  • 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) 1 low (L), or high (H). The results below demonstrate that these thermoplastic sheets with a glass transition temperature of 111 0 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.
  • 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).
  • 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 60°C 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).
  • N none
  • L low
  • H high
  • 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 1 18 mil and then various sheets were sheared to size. The glass transition temperature was measured on one sheet and was 120 0 C. Sheets were then conditioned at 50% relative humidity and 60 0 C 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).
  • N none
  • L low
  • H high
  • 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 60 0 C for 4 weeks. The moisture level was measured to be 0.205 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 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).
  • N none
  • L low
  • H high
  • 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).
  • 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 60 0 C 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), or high (H).
  • N none
  • L low
  • H high
  • 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).

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  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
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  • Crystallography & Structural Chemistry (AREA)
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  • Urology & Nephrology (AREA)
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  • General Chemical & Material Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
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PCT/US2006/011701 2005-06-17 2006-03-30 Polyester compositions comprising minimal amounts of 2, 2, 4, 4, -tetramethyl-1, 3-cyclobutanediol WO2007001536A1 (en)

Applications Claiming Priority (18)

Application Number Priority Date Filing Date Title
US69156705P 2005-06-17 2005-06-17
US60/691,567 2005-06-17
US73145405P 2005-10-28 2005-10-28
US73138905P 2005-10-28 2005-10-28
US60/731,454 2005-10-28
US60/731,389 2005-10-28
US73886905P 2005-11-22 2005-11-22
US73905805P 2005-11-22 2005-11-22
US60/738,869 2005-11-22
US60/739,058 2005-11-22
US75069305P 2005-12-15 2005-12-15
US75054705P 2005-12-15 2005-12-15
US75069205P 2005-12-15 2005-12-15
US75068205P 2005-12-15 2005-12-15
US60/750,692 2005-12-15
US60/750,682 2005-12-15
US60/750,547 2005-12-15
US60/750,693 2005-12-15

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Family Applications (39)

Application Number Title Priority Date Filing Date
PCT/US2006/011701 WO2007001536A1 (en) 2005-06-17 2006-03-30 Polyester compositions comprising minimal amounts of 2, 2, 4, 4, -tetramethyl-1, 3-cyclobutanediol
PCT/US2006/011914 WO2007001556A1 (en) 2005-06-17 2006-03-30 Infant care sterilization containers comprising polyester compositions formed fr0m 2,2,4,4-tetramethyl-1, 3-cyclobutanediol and 1,4-cylohexanedimethanol
PCT/US2006/012063 WO2007001571A1 (en) 2005-06-17 2006-03-30 Thermoplastic articles comprising cyclobutanediol having a decorative material embedded therein
PCT/US2006/011700 WO2007001535A1 (en) 2005-06-17 2006-03-30 Dialysis filter housings comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011913 WO2007001555A1 (en) 2005-06-17 2006-03-30 Lcd films or sheets comprising polyester compositions formed from 2,2,4,4,-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011893 WO2007001550A1 (en) 2005-06-17 2006-03-30 Skylights comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011686 WO2007001532A1 (en) 2005-06-17 2006-03-30 Outdoor shelters comprising polyester compositions formed from 2,2,4,4- tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011593 WO2007001528A1 (en) 2005-06-17 2006-03-30 Retort containers comprising polyester compositions formed from 2,2,4,4- tetramethyl-1,3,-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011927 WO2007001560A1 (en) 2005-06-17 2006-03-30 Graphic art films comprising polyster compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011926 WO2007001559A1 (en) 2005-06-17 2006-03-30 Food storage containers comprising polyester compositions formed from 2,2,4,4-tetramethyl-1, 3-cyclobutanediol and 1, 4-cyclohexanedimethanol
PCT/US2006/011660 WO2007001530A1 (en) 2005-06-17 2006-03-30 Baby bottles comprising polyester compositions which comprise cyclobutanediol
PCT/US2006/011704 WO2007001537A1 (en) 2005-06-17 2006-03-30 Greenhouses comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011594 WO2007001529A1 (en) 2005-06-17 2006-03-30 Protein resistant articles comprising cyclobutanediol
PCT/US2006/011966 WO2007001566A1 (en) 2005-06-17 2006-03-30 Point of purchase displays comprising polyester compositions
PCT/US2006/011968 WO2007001568A1 (en) 2005-06-17 2006-03-30 Film (s) and/or sheet (s) made using polyester compositions containing low amounts of cyclobutanediol
PCT/US2006/012075 WO2007001575A1 (en) 2005-06-17 2006-03-30 Opththalmic devices comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/012066 WO2007001573A1 (en) 2005-06-17 2006-03-30 Containers comprising polyester compositions which comprise cyclobutanediol
PCT/US2006/011940 WO2007001564A1 (en) 2005-06-17 2006-03-30 Appliance parts comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011877 WO2007001545A1 (en) 2005-06-17 2006-03-30 Sound barriers comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011962 WO2007001565A1 (en) 2005-06-17 2006-03-30 Film(s)and/or sheet(s) comprising polyester compositions which comprise cyclobutanediol and have a certain combination of inherent viscosity and high glass transition temperature
PCT/US2006/012062 WO2007001570A1 (en) 2005-06-17 2006-03-30 Film(s) and/or sheet(s) made from polyester compositions containing cyclobutanediol and articles made therefrom
PCT/US2006/011912 WO2007001554A1 (en) 2005-06-17 2006-03-30 Optical media comprising polyester compositions formed from 2,2,4,4,-tetramethyl-1,3-cyclobutanediol and 1,4,-cyclohexanedimethanol
PCT/US2006/011910 WO2007001552A1 (en) 2005-06-17 2006-03-30 Polyester compositions containing cyclobutanediol having a certain combination of inherent viscosity and moderate glass transition temperature and articles made therefrom
PCT/US2006/011873 WO2007001544A1 (en) 2005-06-17 2006-03-30 Glass laminates comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011937 WO2007001563A1 (en) 2005-06-17 2006-03-30 Bottles comprising polyester compositions which comprise cyclobutanediol
PCT/US2006/011935 WO2007001562A1 (en) 2005-06-17 2006-03-30 Thermoformed sheet(s) comprising polyester compositions which comprise cyclobutanediol
PCT/US2006/011808 WO2007001542A1 (en) 2005-06-17 2006-03-30 Tough amorphous polyester compositions
PCT/US2006/011970 WO2007001569A1 (en) 2005-06-17 2006-03-30 Polyester compositions containing high amounts of cyclobutanediol and articles made therefrom
PCT/US2006/012268 WO2006137954A1 (en) 2005-06-17 2006-03-30 Polyester compositions containing low amounts of cyclobutanediol and articles made therefrom
PCT/US2006/011796 WO2007001541A1 (en) 2005-06-17 2006-03-30 Canopies comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011662 WO2007001531A1 (en) 2005-06-17 2006-03-30 Blood therapy containers comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011911 WO2007001553A1 (en) 2005-06-17 2006-03-30 Polyester compositions containing cyclobutanediol and articles made therefrom
PCT/US2006/012065 WO2007001572A1 (en) 2005-06-17 2006-03-30 Film(s) and/or sheet(s) comprising polyester compositions which comprise cyclobutanediol and have a certain combination of inherent viscosity and moderate glass transition temperature
PCT/US2006/011915 WO2007001557A1 (en) 2005-06-17 2006-03-30 Polyester compositions containing cyclobutanediol having a certain combination of inherent viscosity and high glass transition temperature and articles made therefrom
PCT/US2006/011687 WO2007001533A1 (en) 2005-06-17 2006-03-30 Vending machines comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011891 WO2007001548A1 (en) 2005-06-17 2006-03-30 Intravenous components comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011892 WO2007001549A1 (en) 2005-06-17 2006-03-30 Pacifiers comprising polyester compositions formed from 2,2,4,4,-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011967 WO2007001567A1 (en) 2005-06-17 2006-03-30 Outdoor signs comprising polyester compositions formed from 2,2,4,4,-tetramethyl-1, 3-cyclobutanediol and 1,4- cyclohexanedimethanol
PCT/US2006/011890 WO2007001547A1 (en) 2005-06-17 2006-03-30 Polyester compositions which comprise cyclobutanediol having certain cis/trans ratios

Family Applications After (38)

Application Number Title Priority Date Filing Date
PCT/US2006/011914 WO2007001556A1 (en) 2005-06-17 2006-03-30 Infant care sterilization containers comprising polyester compositions formed fr0m 2,2,4,4-tetramethyl-1, 3-cyclobutanediol and 1,4-cylohexanedimethanol
PCT/US2006/012063 WO2007001571A1 (en) 2005-06-17 2006-03-30 Thermoplastic articles comprising cyclobutanediol having a decorative material embedded therein
PCT/US2006/011700 WO2007001535A1 (en) 2005-06-17 2006-03-30 Dialysis filter housings comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011913 WO2007001555A1 (en) 2005-06-17 2006-03-30 Lcd films or sheets comprising polyester compositions formed from 2,2,4,4,-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011893 WO2007001550A1 (en) 2005-06-17 2006-03-30 Skylights comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011686 WO2007001532A1 (en) 2005-06-17 2006-03-30 Outdoor shelters comprising polyester compositions formed from 2,2,4,4- tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011593 WO2007001528A1 (en) 2005-06-17 2006-03-30 Retort containers comprising polyester compositions formed from 2,2,4,4- tetramethyl-1,3,-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011927 WO2007001560A1 (en) 2005-06-17 2006-03-30 Graphic art films comprising polyster compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011926 WO2007001559A1 (en) 2005-06-17 2006-03-30 Food storage containers comprising polyester compositions formed from 2,2,4,4-tetramethyl-1, 3-cyclobutanediol and 1, 4-cyclohexanedimethanol
PCT/US2006/011660 WO2007001530A1 (en) 2005-06-17 2006-03-30 Baby bottles comprising polyester compositions which comprise cyclobutanediol
PCT/US2006/011704 WO2007001537A1 (en) 2005-06-17 2006-03-30 Greenhouses comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011594 WO2007001529A1 (en) 2005-06-17 2006-03-30 Protein resistant articles comprising cyclobutanediol
PCT/US2006/011966 WO2007001566A1 (en) 2005-06-17 2006-03-30 Point of purchase displays comprising polyester compositions
PCT/US2006/011968 WO2007001568A1 (en) 2005-06-17 2006-03-30 Film (s) and/or sheet (s) made using polyester compositions containing low amounts of cyclobutanediol
PCT/US2006/012075 WO2007001575A1 (en) 2005-06-17 2006-03-30 Opththalmic devices comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/012066 WO2007001573A1 (en) 2005-06-17 2006-03-30 Containers comprising polyester compositions which comprise cyclobutanediol
PCT/US2006/011940 WO2007001564A1 (en) 2005-06-17 2006-03-30 Appliance parts comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011877 WO2007001545A1 (en) 2005-06-17 2006-03-30 Sound barriers comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011962 WO2007001565A1 (en) 2005-06-17 2006-03-30 Film(s)and/or sheet(s) comprising polyester compositions which comprise cyclobutanediol and have a certain combination of inherent viscosity and high glass transition temperature
PCT/US2006/012062 WO2007001570A1 (en) 2005-06-17 2006-03-30 Film(s) and/or sheet(s) made from polyester compositions containing cyclobutanediol and articles made therefrom
PCT/US2006/011912 WO2007001554A1 (en) 2005-06-17 2006-03-30 Optical media comprising polyester compositions formed from 2,2,4,4,-tetramethyl-1,3-cyclobutanediol and 1,4,-cyclohexanedimethanol
PCT/US2006/011910 WO2007001552A1 (en) 2005-06-17 2006-03-30 Polyester compositions containing cyclobutanediol having a certain combination of inherent viscosity and moderate glass transition temperature and articles made therefrom
PCT/US2006/011873 WO2007001544A1 (en) 2005-06-17 2006-03-30 Glass laminates comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011937 WO2007001563A1 (en) 2005-06-17 2006-03-30 Bottles comprising polyester compositions which comprise cyclobutanediol
PCT/US2006/011935 WO2007001562A1 (en) 2005-06-17 2006-03-30 Thermoformed sheet(s) comprising polyester compositions which comprise cyclobutanediol
PCT/US2006/011808 WO2007001542A1 (en) 2005-06-17 2006-03-30 Tough amorphous polyester compositions
PCT/US2006/011970 WO2007001569A1 (en) 2005-06-17 2006-03-30 Polyester compositions containing high amounts of cyclobutanediol and articles made therefrom
PCT/US2006/012268 WO2006137954A1 (en) 2005-06-17 2006-03-30 Polyester compositions containing low amounts of cyclobutanediol and articles made therefrom
PCT/US2006/011796 WO2007001541A1 (en) 2005-06-17 2006-03-30 Canopies comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011662 WO2007001531A1 (en) 2005-06-17 2006-03-30 Blood therapy containers comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011911 WO2007001553A1 (en) 2005-06-17 2006-03-30 Polyester compositions containing cyclobutanediol and articles made therefrom
PCT/US2006/012065 WO2007001572A1 (en) 2005-06-17 2006-03-30 Film(s) and/or sheet(s) comprising polyester compositions which comprise cyclobutanediol and have a certain combination of inherent viscosity and moderate glass transition temperature
PCT/US2006/011915 WO2007001557A1 (en) 2005-06-17 2006-03-30 Polyester compositions containing cyclobutanediol having a certain combination of inherent viscosity and high glass transition temperature and articles made therefrom
PCT/US2006/011687 WO2007001533A1 (en) 2005-06-17 2006-03-30 Vending machines comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011891 WO2007001548A1 (en) 2005-06-17 2006-03-30 Intravenous components comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011892 WO2007001549A1 (en) 2005-06-17 2006-03-30 Pacifiers comprising polyester compositions formed from 2,2,4,4,-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol
PCT/US2006/011967 WO2007001567A1 (en) 2005-06-17 2006-03-30 Outdoor signs comprising polyester compositions formed from 2,2,4,4,-tetramethyl-1, 3-cyclobutanediol and 1,4- cyclohexanedimethanol
PCT/US2006/011890 WO2007001547A1 (en) 2005-06-17 2006-03-30 Polyester compositions which comprise cyclobutanediol having certain cis/trans ratios

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