JPS54135896A - Preparation of polyester having improved transparency and color tone - Google Patents

Preparation of polyester having improved transparency and color tone

Info

Publication number
JPS54135896A
JPS54135896A JP4356378A JP4356378A JPS54135896A JP S54135896 A JPS54135896 A JP S54135896A JP 4356378 A JP4356378 A JP 4356378A JP 4356378 A JP4356378 A JP 4356378A JP S54135896 A JPS54135896 A JP S54135896A
Authority
JP
Japan
Prior art keywords
polyester
preparation
cobalt
color tone
alkali metal
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP4356378A
Other languages
Japanese (ja)
Inventor
Yasuhiro Tokiyama
Minoru Nishinohara
Nobuhiro Matsunaga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Ester Co Ltd
Original Assignee
Nippon Ester Co Ltd
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 Nippon Ester Co Ltd filed Critical Nippon Ester Co Ltd
Priority to JP4356378A priority Critical patent/JPS54135896A/en
Publication of JPS54135896A publication Critical patent/JPS54135896A/en
Pending legal-status Critical Current

Links

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  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: To obtain a polyester having improved transparency and color tone, by subjecting bis(β-hydroxyethyl)terephthalate to polycondensation in the presence of an antimony, an organotin, a cobalt, and an alkali metal compounds.
CONSTITUTION: In preparation of a polyester by polycondensation of bis(β-hydroxyethyl)terephthalate or a composition consisting mainly of it in the presence of an antimony compound as a catalyst, an organotin, a cobalt, and an alkali metal compounds are added in amounts to satisfy quantitative relations shown by the formulae respectively, 1/104 ≤ A ≤ 10×10-4, 0.01 ≤ B/A ≤ 0.2, 0.2×10-4 ≤ C ≤ 2×10-4, 0.1 ≤ D/A ≤ 3, (A, B, C, and D are numbers of moles of antimony, tin, cobalt, and the alkali metal atoms based on 1 mole of an acid component forming the polyester).
COPYRIGHT: (C)1979,JPO&Japio
JP4356378A 1978-04-13 1978-04-13 Preparation of polyester having improved transparency and color tone Pending JPS54135896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4356378A JPS54135896A (en) 1978-04-13 1978-04-13 Preparation of polyester having improved transparency and color tone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4356378A JPS54135896A (en) 1978-04-13 1978-04-13 Preparation of polyester having improved transparency and color tone

Publications (1)

Publication Number Publication Date
JPS54135896A true JPS54135896A (en) 1979-10-22

Family

ID=12667204

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4356378A Pending JPS54135896A (en) 1978-04-13 1978-04-13 Preparation of polyester having improved transparency and color tone

Country Status (1)

Country Link
JP (1) JPS54135896A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7358322B2 (en) 2004-03-09 2008-04-15 Eastman Chemical Company High IV melt phase polyester polymer catalyzed with antimony containing compounds
US7459113B2 (en) 2004-03-08 2008-12-02 Eastman Chemical Company Process of making a container from polyester polymer particles having a small surface to center intrinsic-viscosity gradient
US7935399B2 (en) 2004-09-02 2011-05-03 Grupo Petrotemex, S.A. De C.V. Low melting polyester polymers
WO2011114348A1 (en) 2010-03-17 2011-09-22 Reliance Industries Limited Catalyst system and process for preparing of polyester resins, fibre, filaments and yarn using said catalyst system
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

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7459113B2 (en) 2004-03-08 2008-12-02 Eastman Chemical Company Process of making a container from polyester polymer particles having a small surface to center intrinsic-viscosity gradient
US7358322B2 (en) 2004-03-09 2008-04-15 Eastman Chemical Company High IV melt phase polyester polymer catalyzed with antimony containing compounds
US7368522B2 (en) 2004-03-09 2008-05-06 Eastman Chemical Company High IV melt phase polyester polymer catalyzed with antimony containing compounds
US7935399B2 (en) 2004-09-02 2011-05-03 Grupo Petrotemex, S.A. De C.V. Low melting polyester polymers
US8968615B2 (en) 2004-09-02 2015-03-03 Eastman Chemical Company Low melting polyester polymers
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
WO2011114348A1 (en) 2010-03-17 2011-09-22 Reliance Industries Limited Catalyst system and process for preparing of polyester resins, fibre, filaments and yarn using said catalyst system

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