JPS5457594A - Preparation of polyester - Google Patents

Preparation of polyester

Info

Publication number
JPS5457594A
JPS5457594A JP12408377A JP12408377A JPS5457594A JP S5457594 A JPS5457594 A JP S5457594A JP 12408377 A JP12408377 A JP 12408377A JP 12408377 A JP12408377 A JP 12408377A JP S5457594 A JPS5457594 A JP S5457594A
Authority
JP
Japan
Prior art keywords
polyester
acid component
alkylene glycol
polycondensation
terephthalic acid
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
JP12408377A
Other languages
Japanese (ja)
Inventor
Masatoshi Furukawa
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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Priority to JP12408377A priority Critical patent/JPS5457594A/en
Publication of JPS5457594A publication Critical patent/JPS5457594A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prepare a polyester having a high softening point, by the direct esterification and subsequent polycondensation of terephthalic acid with an alkylene glycol under specific condition in the presence of a specific catalyst.
CONSTITUTION: 1 Mole of a difunctional carboxylic acid component consisting mainly of terephthalic acid is esterified with 1.05W1.6 moles of an alkylene glycol component at 230W280°C under ordinary pressure or positive pressure in the presence of a titanium alkoxide (3W20 m mol% based on the acid component) and an amine compound, e.g. triethylamine, etc. (0.001W0.01 wt.% based on the acid component) to attain a conversion of 80W96%, and subsequently, polycondensation is carried out under reduced pressure without addition of other catalysts to give a polyester.
COPYRIGHT: (C)1979,JPO&Japio
JP12408377A 1977-10-18 1977-10-18 Preparation of polyester Pending JPS5457594A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12408377A JPS5457594A (en) 1977-10-18 1977-10-18 Preparation of polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12408377A JPS5457594A (en) 1977-10-18 1977-10-18 Preparation of polyester

Publications (1)

Publication Number Publication Date
JPS5457594A true JPS5457594A (en) 1979-05-09

Family

ID=14876498

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12408377A Pending JPS5457594A (en) 1977-10-18 1977-10-18 Preparation of polyester

Country Status (1)

Country Link
JP (1) JPS5457594A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010064390A1 (en) * 2008-12-02 2010-06-10 花王株式会社 Process for producing polyester resin

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010064390A1 (en) * 2008-12-02 2010-06-10 花王株式会社 Process for producing polyester resin
US8263728B2 (en) 2008-12-02 2012-09-11 Kao Corporation Method for producing polyester resin

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