WO2002018472A3 - Procedure for the manufacture of poly-(ethylene terephthalate) - Google Patents

Procedure for the manufacture of poly-(ethylene terephthalate) Download PDF

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Publication number
WO2002018472A3
WO2002018472A3 PCT/US2001/026579 US0126579W WO0218472A3 WO 2002018472 A3 WO2002018472 A3 WO 2002018472A3 US 0126579 W US0126579 W US 0126579W WO 0218472 A3 WO0218472 A3 WO 0218472A3
Authority
WO
WIPO (PCT)
Prior art keywords
poly
manufacture
ethylene terephthalate
procedure
temperatures
Prior art date
Application number
PCT/US2001/026579
Other languages
French (fr)
Other versions
WO2002018472A2 (en
Inventor
Jens-Peter Wiegner
Volkmar Voerckel
Sarat Munjal
Original Assignee
Dow Chemical Co
Wiegner Jens Peter
Volkmar Voerckel
Sarat Munjal
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 Dow Chemical Co, Wiegner Jens Peter, Volkmar Voerckel, Sarat Munjal filed Critical Dow Chemical Co
Priority to AU2001285283A priority Critical patent/AU2001285283A1/en
Publication of WO2002018472A2 publication Critical patent/WO2002018472A2/en
Publication of WO2002018472A3 publication Critical patent/WO2002018472A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/91—Polymers modified by chemical after-treatment
    • C08G63/914—Polymers modified by chemical after-treatment derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/916—Dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/80—Solid-state polycondensation

Abstract

The invention concerns a new procedure for the manufacture of poly-(ethylene terephthalate) (PET) by raising the molecular in the liquid phase to 68,000 to 86,000 g/mol, during the step of liquid phase polycondensation and subsequently pelletizing the amorphous product, followed by a crystallization over a period of 15-60 min, at temperatures of 160-185 °C, in air, whereby the pellet temperature reach 25-180 °C. In a subsequent procedural step the pellets remain for 2-10 h at temperatures of 120 °C to 220 °C ('preheater') in an air stream, followed by treating the polyester resin thus obtained with polyols or other blocking agents at concentrations of 100 and 10,000 ppm, relative to the polyester resin.
PCT/US2001/026579 2000-08-28 2001-08-24 Procedure for the manufacture of poly-(ethylene terephthalate) WO2002018472A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001285283A AU2001285283A1 (en) 2000-08-28 2001-08-24 Procedure for the manufacture of poly-(ethylene terephthalate)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22849100P 2000-08-28 2000-08-28
US60/228,491 2000-08-28

Publications (2)

Publication Number Publication Date
WO2002018472A2 WO2002018472A2 (en) 2002-03-07
WO2002018472A3 true WO2002018472A3 (en) 2002-06-06

Family

ID=22857386

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/026579 WO2002018472A2 (en) 2000-08-28 2001-08-24 Procedure for the manufacture of poly-(ethylene terephthalate)

Country Status (2)

Country Link
AU (1) AU2001285283A1 (en)
WO (1) WO2002018472A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8987408B2 (en) 2005-06-16 2015-03-24 Grupo Petrotemex, S.A. De C.V. High intrinsic viscosity melt phase polyester polymers with acceptable acetaldehyde generation rates
US9267007B2 (en) 2005-09-16 2016-02-23 Grupo Petrotemex, S.A. De C.V. Method for addition of additives into a polymer melt

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7244792B2 (en) 2002-03-20 2007-07-17 Agarwal Uday S Process for making a modified thermoplastic polyester
US7179881B2 (en) * 2003-09-19 2007-02-20 Eastman Chemical Company Process for heating PET pellet feed to a solid stating process by heat exchange with hot solid stated pellets
US8207289B2 (en) 2007-05-23 2012-06-26 Grupo Petrotemex, S.A. De C.V. High molecular weight polyester polymers with reduced acetaldehyde

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3453240A (en) * 1964-09-24 1969-07-01 Goodyear Tire & Rubber Polyester resin treatment with ethylene glycol
US4132707A (en) * 1976-12-06 1979-01-02 General Electric Company Preparation of branched poly(alkylene terephthalates)
US4161579A (en) * 1978-04-10 1979-07-17 Celanese Corporation Extrusion grade polyethylene terephthalate
US4374975A (en) * 1982-02-02 1983-02-22 The Goodyear Tire & Rubber Company Process for the production of high molecular weight polyester

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3453240A (en) * 1964-09-24 1969-07-01 Goodyear Tire & Rubber Polyester resin treatment with ethylene glycol
US4132707A (en) * 1976-12-06 1979-01-02 General Electric Company Preparation of branched poly(alkylene terephthalates)
US4161579A (en) * 1978-04-10 1979-07-17 Celanese Corporation Extrusion grade polyethylene terephthalate
US4374975A (en) * 1982-02-02 1983-02-22 The Goodyear Tire & Rubber Company Process for the production of high molecular weight polyester

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8987408B2 (en) 2005-06-16 2015-03-24 Grupo Petrotemex, S.A. De C.V. High intrinsic viscosity melt phase polyester polymers with acceptable acetaldehyde generation rates
US9267007B2 (en) 2005-09-16 2016-02-23 Grupo Petrotemex, S.A. De C.V. Method for addition of additives into a polymer melt

Also Published As

Publication number Publication date
WO2002018472A2 (en) 2002-03-07
AU2001285283A1 (en) 2002-03-13

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