WO1999011710A1 - Thermoplastic polyurethane additives for chain extension and reactive extrusion - Google Patents
Thermoplastic polyurethane additives for chain extension and reactive extrusion Download PDFInfo
- Publication number
- WO1999011710A1 WO1999011710A1 PCT/US1998/018011 US9818011W WO9911710A1 WO 1999011710 A1 WO1999011710 A1 WO 1999011710A1 US 9818011 W US9818011 W US 9818011W WO 9911710 A1 WO9911710 A1 WO 9911710A1
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- WO
- WIPO (PCT)
- Prior art keywords
- glycol
- combination
- acid
- diol
- component
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6607—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
Definitions
- the present invention relates to a method for increasing the molecular weight of a polymer composition by melt mixing a composition composed of a polymer having at least one isocyanate reactive group and a thermoplastic polyurethane.
- high molecular weight polyesters and copolyesters can be used in a number of different applications.
- high molecular weight polyesters can be used as reinforcing agents in rubber articles.
- high molecular weight polyesters can be extruded and molded into a wide variety of useful articles.
- a problem associated with the production of high molecular weight polyesters is the amount of time it takes to produce a polymer with the desired molecular weight. Upon extended heating, the polymer can undergo thermal degradation, which ultimately reduces the molecular weight of the polymer.
- U.S. Patent No. 5,519,094 to Tseng et al. and U.S. Patent No. 5,258 ,445 to Sperk et al. disclose the combination of a thermoplastic polyurethane, a polyester, and a glass fiber to produce a molding composition.
- International Patent No. WO 95/26432 to Wagner et al. disclose the preparation of an abrasion resistant polyester blend composed of a thermoplastic polyester, a thermoplastic polyurethane, and optionally, nonpolymeric additives that exhibits improved processing safety.
- CA '11 1 discloses a poly(butylene terephthalate)/polyurethane molding composition.
- Tseng et al, Sperk et al., Wagner et al, and CA ' 1 1 1 teach one of ordinary skill in the art to use a higher amounts of polyurethane in order to increase or enhance the mechanical properties of the blend. These references are not concerned with increasing the molecular weight of a polymer.
- this invention in one aspect, relates to a method for making a polymer composition, comprising melt mixing a composition comprising a polymer having at least one isocyanate reactive group and a the ⁇ noplastic polyurethane, wherein the the ⁇ noplastic polyurethane is less than 5% by weight of the composition, wherein the polymer is not a polyamide.
- the invention further relates to a polymer composition produced by the present invention.
- the invention further relates to an article comprising the polymer composition produced by the present invention.
- isocyanate reactive group is any group that can react with an isocyanate moiety as shown in Equation I.
- isocyanate reactive groups include, but are not limited to a hydroxyl group, an amino group, a carbonate group, or a carboxyl group.
- a “carbonyl compound” is any carboxylic acid, ester, acid halide, or anhydride
- dicarbonyl compound is any dicarboxylic acid, diester, diacid halidc, or dianhyd ⁇ de.
- glycol is any compound that possesses at least two hydroxyl groups. Additionally, a glycol can be any precursor compound that is readily converted to a compound possessing two hydroxyl groups. An example of such a compound is hydroquinone (I), which can be converted to biphenol (II) using techniques known in the art.
- this invention in one aspect, relates to a method for making a polymer composition, comprising melt mixing a composition comprising a polymer having at least one isocyanate reactive group and a thermoplastic polyurethane, wherein the thennoplastic polyurethane is less than 5% by weight of the composition, wherein the polymer is not a polyamide.
- the polymer used in the present invention has at least one isocyanate reactive group.
- the role of the isocyanate reactive group with respect to producing a polymer composition will be discussed below.
- the polymer comprises a polyester, a liquid crystalline polymer, a polycarbonate, or a combination thereof.
- the polymer comprises a polyester.
- Polyesters useful in the present invention comprise the reaction product between ( 1 ) at least one first glycol component comprising an aliphatic glycol, a cycloaliphatic glycol, an aromatic glycol, or a combination thereof, and (2) at least one first dicarbonyl component comprising an aliphatic dicarbonyl compound, a cycloaliphatic dicarbonyl compound, an aromatic dicarbonyl compound, or a combination thereof.
- the first glycol component comprises a first glycol compound comprising ethylene glycol; propylene glycol; 1 ,3-propanediol; 1 ,4- butanediol; 1 ,6-hexanediol; 1,8-octanediol; 1 ,10-decanediol; 2,2-dimethyl-l ,3- propanediol; 1 ,4-cyclohexanedimethanol; diethylene glycol; polyethylene glycol; polypropylene glycol; polytetramethylene glycol, or a combination thereof.
- a first glycol compound comprising ethylene glycol; propylene glycol; 1 ,3-propanediol; 1 ,4- butanediol; 1 ,6-hexanediol; 1,8-octanediol; 1 ,10-decanediol; 2,2-dimethyl-l ,3- propane
- the first glycol compound comprises ethylene glycol; 1,3-propanediol; 1,4-butanediol, or 1,4-cycIohexanedimethanol.
- the first glycol compound has from 2 to 10 carbon atoms.
- the first glycol component further comprises a second glycol compound, wherein the second glycol compound comprises glycerol, trimethyolpropane, pentaerythritol, or a combination thereof.
- the second glycol component behaves as a branching agent, which forms branches off the polymer backbone.
- the first dicarbonyl component comprises terephthalic acid, cyclohexanedicarboxylic acid, or naphthalenedicarboxylic acid. Any of the isomers of naphthalenedicarboxylic acid and cyclohexanedicarboxylic acid are useful in the present invention.
- the cis-, trans-, or cislirans isomers of cyclohexanedicarboxylic acid can be used.
- the 2,6-isomer of naphthalenedicarboxylic acid can be used.
- the polyester further comprises the reaction product of a second dicarbonyl compound comprising a C to C 40 dicarbonyl compound.
- the second dicarbonyl is a modifying dibasic acid.
- the second dicarbonyl compound comprises succinic acid, glutaric acid, adipic acid, sebacic acid, dimer acid, or a combination thereof.
- Dimer acid comprises the dimerization product of unsaturated fatty acids, wherein the fatty acid has from 14 to 24 carbon atoms.
- the first dicarbonyl component comprises at most 65 mole % of the second dicarbonyl compound, wherein the sum of the dicarbonyl compounds of the first dicarbonyl component equals 100 mole %.
- the first dicarbonyl component further comprises a third dicarbonyl compound, wherein the third dicarbonyl compound comprises trimellitic acid, trimellitic anhydride, pyromellitic anhydride, or a combination thereof.
- the third dicarbonyl compound can also behave as a branching agent as described above.
- the polyester has an inherent viscosity of from 0.2 to 1.5 dL/g, preferably from 0.3 to 1.2 dL/g as determined in 60/40 phenol/tetrachloroethane.
- polyesters useful in the present invention include, but are not limited to, poly(butylene terephthalate), poly(propylene terephthalate), poly(ethylene terephthalate), poly(ethylene naphthalate), poly(cyclohexanedimethylene terephthalate), or a combination thereof.
- the polyester is poly(ethylene-2,6- naphthalate) or poly(l ,4-cyclohexanedimethylene terephthalate).
- the polyester comprises poly(ethyelene terephthalate) or poly(butylene terephthalate).
- the polymer can be a copolyester. Any combination of the glycols and dicarbonyl compounds described above can be used to prepare copolyesters useful in the present invention.
- the copolyester is the condensation product between poly(ethylene terephthalate) and polyethylene glycol.
- the polymer comprises a liquid crystalline polymer.
- a liquid crystalline polymer Any of the liquid crystalline polymers disclosed in U.S. Patent Nos. 4,169,933 and 4,1617,470 are useful in the present invention, which are hereby incorporated by reference in their entirety.
- the liquid crystalline polymer comprises the reaction product between a second glycol component and a first carbonyl component.
- the second glycol component comprises hydroquinone, biphenol, cyclohexanedimethanol, or a combination thereof.
- the first carbonyl component comprises -hydroxybenzoic acid, 6-hydroxy-2-naphthoic acid, /?- acyloxybenzoic acid, 2,6-naphthalenedicarboxylic acid, terephthalic acid, isophthalic acid, or a combination thereof, preferably -hydroxybenzoic acid, 2,6- naphthalenedicarboxylic acid, or terephthalic acid.
- the liquid crystalline polyester has a molecular weight of from 5,000 to 25,000.
- polycarbonates can be used in the present invention.
- the polycarbonate comprises bisphenol A polycarbonate.
- thermoplastic polyurethane Any thermoplastic polyurethane known in the art is useful in the present invention.
- thermoplastic polyurethanes examples include thermoplastic polyurethanes than can be used in the present invention are disclosed in U.S. Patent Nos. 4,822,827; 4,376,834, and 4,567,236, which are incorporated by reference in their entirety.
- the thermoplastic polyurethanes of the present invention can be both rigid and elastomeric.
- the thermoplastic polyurethane comprises the reaction product between a polyisocyanate and a diol component.
- polyisocyanates include, but are not limited to, a methylenebis(phenyl isocyanate), a cycloaliphatic diisocyanate. a cyclohexylene diisocyanate, or a combination thereof.
- any of the 4,4'-isomer, the 2,4'-isomer, or combinations thereof of methylencbis(phenyl isocyanate) can be used.
- Examples of other methylenebis(phenyl isocyanates) include, but are not limited to, m- and/ phenylene diisocyanates; chlorophenvlene diisocyanates; ⁇ , ⁇ '-xylylene diisocyanate: 2.4- and 2,6-tol ⁇ ene diisocyanate and mixtures of these latter two isomers; toluidine diisocyanate, hexamethylene diisocyanate; 1 ,5-naphthalene diisocyanate, or isophorone diisocyanate.
- the methylenebis(cyclohexyl isocyanate) is the 4,4'-isomer, the 2,4'-isomer and mixtures thereof. Any of the geometric isomers including trans/trans, cisltrans, cislcis and mixtures thereof can be used.
- cycloaliphatic diisocyanates include, but are not limited to, cyclohexylene diisocyanates (1,2-; 1 ,3-; or 1,4-), l-methyl-2,5-cyclohexylene diisocyanate, l-methyl-2,4-cyclohexylene diisocyanate, l -methyl-2,6-cyclohexylene diisocyanate, 4,4'-isopropylidenebis(cyclohexyl isocyanate), or 4,4'-diisocyanatodicyclohexyl.
- the isocyanate is a modified form of methylenebis(phenyl isocyanate).
- These isocyanates have been reacted with an aliphatic glycol or a mixture of aliphatic glycols, such as described in U.S. Pat. Nos. 3,394,164: 3,644,457; 3,883,571 ; 4,031,026; 4,1 15,429; 4,1 18,41 1 ; and 4,299,347, which are hereby incorporated by reference in their entirety.
- the diol component comprises at least one cycloaliphatic diol and at least one diol extender.
- the cycloaliphatic diol comprises 1,3-cyclobutanediol; 1,3-cyclopentanediol; 1 ,2-cyclohexanediol;
- 1,4-cycloheptanediol 2-methyl-l ,4-cycloheptanediol; 4-methyl-l ,3-cycloheptanediol;
- the diol extender comprises ethylene glycol; 1,3-propanediol; 1,4-butanediol; 1 ,5-pentanediol; 1 ,6-hexanediol; 1,2-propanediol; 1,3-butanediol; 2,3-butanediol; 1,3-pentanediol; 1 ,2-hexanediol; 3-methylpentane-l,5-diol; 1,9-nonanediol; 2-methyloctane-l,8-diol;
- 1,4-cyclohexanedimethanol hydroquinone bis(hydroxyethyl)ether; diethylene glycol; dipropylene glycol; tripropylene glycol; ethanolamine; N-methyl-diethanolamine; N-ethyldiethanolamine, or a combination thereof.
- the diol component can be an ester diol formed by esterifying an aliphatic dicarboxylic acid with an aliphatic diol listed above.
- aliphatic dicarboxylic acids include, but are not limited to, adipic acid, azelaic, acid, or glutaric acid.
- from about 0.01 to about 0.8 mole of dicarboxylic acid per mole of diol are reacted to produce the ester diol.
- the diol component is the reaction product between an aliphatic diol or triol and a lactone. In one embodiment, 0.01 to 2 moles of lactone per mole of diol or triol are reacted with one another to produce the diol component.
- aliphatic diols in this embodiment include, but are not limited to, 1 ,4-cyclohexanedimethanol, neopentyl glycol, hexane-l ,6-diol, ethylene glycol, butane- 1 ,4-diol, or trimethylolpropane.
- aliphatic triols include, but are not limited to, glycerol or trimethylolpropane.
- the lactone is epsilon- caprolactone.
- the cycloaliphatic diol is from 10 to 90% by weight of the 1 1
- diol component and the diol extender is from 10 to 90% by weight of the diol component, wherein the sum of the weight percentages of the cycloaliphatic diol and diol extender is equal to 100%.
- a polyol is used to prepare the thermoplastic polyurethane.
- polyols include, but are not limited to, a polyether polyol. a polyester polyol, a hydroxy-terminated polycarbonate, a hydroxy-terminated polybutadiene, a hydroxy-terminated polybutadiene-acrylonit ⁇ le copolymer, a hydroxy-terminated copolymer of a dialkyl siloxane and alkylene oxide, or a combination thereof.
- the molecular weight of the polyol is from about 1,250 to about 10,000, preferably, from about 2,000 to about 8,000
- polyether polyols examples include, but are not limited to, polyoxyethylene glycol or polyoxypropylene glycol.
- polyoxyethylene glycol or polyoxypropylene glycol can be capped with 1) ethylene oxide residues; 2) random and block copolymers of ethylene oxide and propylene oxide; 3) propoxylated tri- and tetrahydric alcohols such as glycerine, tnmethylolpropane, or pentaerythritol; 4) polytetramethylene glycol, or 5) random and block copolymers of tetrahydrofuran and ethylene oxide and/or propylene oxide
- the polyether polyol is a random and block copolymer of ethylene and propylene oxide or polytetramethylene glycol.
- Other examples of polyether polyols useful in the present invention include, but are not limited to vinyl reinforced polyether polyols, such as the polymerization product between styrene and/or acrylonitrile and
- a polyether ester can be prepared by reacting a polycthci polyol described above with a di- or t ⁇ functional aliphatic or aromatic carboxy c acid
- useful carboxyhc acids include, but are not limited to, adipic acid, azelaic acid, glutaric acid, lsophthahc acid, terephthalic acid, or trimellitic acid
- the polyester polyol is the polymerization product between epsilon-caprolactone and ethylene glycol or ethanolamme
- the polyester polyol is prepared by the esterification of a polycarboxylic acid such as phthalic acid, terephthalic acid, succinic acid, glutaric acid, adipic acid, or azelaic acid and with a polyhydric alcohol such as ethylene glycol, butanediol, glycerol, trimethylolpropane, 1,2,6-hexanetriol, or cyclo
- the polyester polyol is prepared by esterifying a dimeric or trimeric fatty acid, optionally mixed with a monomeric fatty acid such as oleic acid, with a long chain aliphatic diol such as hexane-l ,6-diol.
- a polyether diamine useful in the present invention is JEFFAMINE ® , which is manufactured by Jefferson Chemical Company.
- polycarbonates used to make the thermoplastic polyurethanes of the present invention containing hydroxyl groups useful in the present invention are prepared by reacting a diol, such as propane- 1,3-diol, butane-l,4-diol, hexan-l,6-diol, diethylene glycol, triethylene glycol, or dipropylene glycol, with a diarylcarbonate (e.g. diphenylcarbonate) or with phosgene.
- a diol such as propane- 1,3-diol, butane-l,4-diol, hexan-l,6-diol, diethylene glycol, triethylene glycol, or dipropylene glycol
- diarylcarbonate e.g. diphenylcarbonate
- phosgene phosgene
- silicon-containing polyethers useful in the present invention are copolymers of alkylene oxides with dialkylsiloxanes such as dimethylsiloxane.
- hydroxy-terminated poly-butadiene copolymers sold under the tradename POLY BD*" Liquid Resins manufactured by Arco Chemical Company are useful in the present invention.
- hydroxy- and amine-terminated butadiene/acrylonitrile copolymers sold under the tradename HYCAR ® hydroxyl-terminaled (HT) Liquid Polymers and amine-terminated (AT) Liquid Polymers, respectively can be used in the present invention.
- the thermoplastic polyurethane is ISOPLAST ® , which is manufactured by the Dow Chemical Company.
- thermoplastic polyurethanes sold under the tradename ISOPLAST ® ; however, these thermoplastic polyurethanes are typically the reaction product between methylenebis(phenyl isocyanate) and a number of different glycols.
- the thermoplastic polyurethane is ISOPLAST ® 301, which is the reaction product between methylenebis(phenyl isocyanate), 1 ,6-hexanediol, cyclohexanedimethanol, and polytetramethylene glycol.
- the thermoplastic polyurethane is from 1 to 4%, preferably from 1 to 3%, more preferably from 1 to 2%, or even more preferably from 1 to 1.5% by weight of the mixture, wherein the sum of the weight percentages of the thermoplastic polyurethane and the polymer is equal to 100 %.
- thermoplastic polyurethane is required to increase the molecular weight of the polymer.
- thermoplastic polyurethane which is disclosed in the prior art, the viscosity of the resultant composite also increases. The higher the viscosity, the more difficult it is to extrude the composite.
- the present invention avoids these processing problems by using only a small amount of thermoplastic polyurethane.
- the polymer is poly(butylene terephthalate) and the the ⁇ noplastic polyurethane is ISOPLAST ® 301.
- additives known in the art can be added to the polymer composition.
- additives include, but are not limited to. a colorant, a filler, a processing aid, a plasticizer, a nucleating compound, a stabilizer, an antioxidant, a mold release agent, a flame retardant, a reinforcing agent, an epoxy compound, or a combination thereof.
- the reinforcing agent comprises glass fiber, carbon fiber, calcium carbonate, talc, iron oxide, mica, niontmonllonite. clay, kaolin, wollastonile, or a combination thereof.
- the additive can be melt mixed with the polymer and the thermoplastic polyurethane.
- the polymer of the present invention and the thermoplastic polyurethane can be melt mixed using a number of techniques known in the art.
- melt mixing can be performed by a Brabender Plastograph, Haake plastograph melt mixer (Rheocord 90), a single screw extruder, or a twin screw extruder (such as Werner Pfleiderer equipment)
- the temperature and time required to melt mix the polymer and the ⁇ noplastic polyurethane depend upon the the polymer and the ⁇ noplastic polyurethane selected; however, one of ordinary skill in the art can deduce these parameters.
- melt mixing can be reactive extrusion.
- thermoplastic polyurethane are required in the present invention when compared to p ⁇ or art methods.
- the present invention is not concerned with the formation of a simple blend.
- the invention further relates to the polymer compositions produced by the present invention.
- the process of the present invention does not use toxic and hazardous isocyanates, which are disclosed in the art as chain extenders, to increase the molecular weight of the polymer
- the copolymer composition can be a block an ⁇ Vor graft copolymer. The formation of the block and/or graft copolymers depends upon the location of the isocyanate reactive group on the polymer.
- any of the polymer composites of the present invention can be melt processed and extruded as pellets or chips.
- the polymer composites can also be molded or shaped to produce a desired article by using extrusion, pultrusion, injection molding, or compression molding techniques.
- Example 1 is a comparative example that does not contain a thermoplastic polyurethane additive of this invention.
- the molecular weight of poly(butylene terephthalate) decreased in the absence of thermoplastic polyurethane (from 15,000 to 14,500).
- Examples 2 and 3 are representative examples of this invention containing 1.5 and 3 wt% of the thermoplastic polyurethane respectively.
- Examples 2 and 3 are of higher molecular weight than the control, which indicates that chain extension occurred during the melt processing of the thermoplastic polyurethane and PBT.
- the data in Table 1 demonstrate that the addition of a small amount of thermoplastic polyurethane increases the molecular weight of the polymer.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP2000508734A JP2001514318A (en) | 1997-09-04 | 1998-08-31 | Thermoplastic polyurethane additives for chain extension and reactive extrusion |
EP98943478A EP1017742A1 (en) | 1997-09-04 | 1998-08-31 | Thermoplastic polyurethane additives for chain extension and reactive extrusion |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5792397P | 1997-09-04 | 1997-09-04 | |
US14082598A | 1998-08-26 | 1998-08-26 | |
US60/057,923 | 1998-08-26 | ||
US09/140,825 | 1998-08-26 |
Publications (1)
Publication Number | Publication Date |
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WO1999011710A1 true WO1999011710A1 (en) | 1999-03-11 |
Family
ID=26737039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/US1998/018011 WO1999011710A1 (en) | 1997-09-04 | 1998-08-31 | Thermoplastic polyurethane additives for chain extension and reactive extrusion |
Country Status (3)
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EP (1) | EP1017742A1 (en) |
JP (1) | JP2001514318A (en) |
WO (1) | WO1999011710A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2050791A1 (en) * | 2006-07-28 | 2009-04-22 | Mitsubishi Gas Chemical Company, Inc. | Polycarbonate resin composition and electrophotographic photosensitive body using the same |
US11168174B2 (en) | 2016-02-23 | 2021-11-09 | Eastman Chemical Company | Isocyanate-modified rigid thermoplastic polymer compositions |
US11208520B2 (en) | 2016-02-23 | 2021-12-28 | Eastman Chemical Company | Isocyanate-modified rigid thermoplastic polymer compositions |
US11267928B2 (en) | 2016-02-22 | 2022-03-08 | Basf Se | Method for producing a diblock copolymer |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3983686B2 (en) * | 2002-01-29 | 2007-09-26 | 株式会社クラレ | Thermoplastic polyurethane composition and method for producing the same |
CA2417485C (en) | 2002-01-29 | 2010-08-17 | Kuraray Co., Ltd. | Thermoplastic polyurethane composition and process for producing the same |
JP5495953B2 (en) * | 2010-05-31 | 2014-05-21 | 株式会社オートネットワーク技術研究所 | Modified polyester resin and polyester resin molded product |
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1998
- 1998-08-31 EP EP98943478A patent/EP1017742A1/en not_active Withdrawn
- 1998-08-31 WO PCT/US1998/018011 patent/WO1999011710A1/en not_active Application Discontinuation
- 1998-08-31 JP JP2000508734A patent/JP2001514318A/en active Pending
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Cited By (5)
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---|---|---|---|---|
EP2050791A1 (en) * | 2006-07-28 | 2009-04-22 | Mitsubishi Gas Chemical Company, Inc. | Polycarbonate resin composition and electrophotographic photosensitive body using the same |
EP2050791A4 (en) * | 2006-07-28 | 2012-09-05 | Mitsubishi Gas Chemical Co | Polycarbonate resin composition and electrophotographic photosensitive body using the same |
US11267928B2 (en) | 2016-02-22 | 2022-03-08 | Basf Se | Method for producing a diblock copolymer |
US11168174B2 (en) | 2016-02-23 | 2021-11-09 | Eastman Chemical Company | Isocyanate-modified rigid thermoplastic polymer compositions |
US11208520B2 (en) | 2016-02-23 | 2021-12-28 | Eastman Chemical Company | Isocyanate-modified rigid thermoplastic polymer compositions |
Also Published As
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EP1017742A1 (en) | 2000-07-12 |
JP2001514318A (en) | 2001-09-11 |
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