JPS5736121A - Preparation of polyester - Google Patents

Preparation of polyester

Info

Publication number
JPS5736121A
JPS5736121A JP11193180A JP11193180A JPS5736121A JP S5736121 A JPS5736121 A JP S5736121A JP 11193180 A JP11193180 A JP 11193180A JP 11193180 A JP11193180 A JP 11193180A JP S5736121 A JPS5736121 A JP S5736121A
Authority
JP
Japan
Prior art keywords
catalyst
polyester
mol
composed mainly
preparation
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
JP11193180A
Other languages
Japanese (ja)
Inventor
Yasuhiro Tokiyama
Hiroshi Kawabuchi
Nobuhiro Matsunaga
Katsuto Matsuzawa
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.)
Mitsubishi Kasei Corp
Nippon Ester Co Ltd
Original Assignee
Mitsubishi Kasei Corp
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 Mitsubishi Kasei Corp, Nippon Ester Co Ltd filed Critical Mitsubishi Kasei Corp
Priority to JP11193180A priority Critical patent/JPS5736121A/en
Publication of JPS5736121A publication Critical patent/JPS5736121A/en
Pending legal-status Critical Current

Links

Landscapes

  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: To prepare a polyester having excellent clarity and color tone, in a short time, by using a specific sulfonic acid compound or its acid anhydride as a catalyst.
CONSTITUTION: In the preparation of a polyester from terephthalic acid or dicarboxylic acids composed mainly thereof or their ester-forming derivatives, and ethylene glycol or glycols composed mainly thereof, the reaction is carried out in the presence of a catalyst composed of a sulfonic acid compound of formula [Ar is aromatic group; X is nitro, nitroso, acyl, (substituted) amino, cyano, halogen, etc.; Y is H or N(R)4 (R is H, lower alkyl, or aryl); k and l are 0W3 (provided that k and l are not 0 at the same time); m is 1W3; n is 1W4] or its acid anhydride. The pref. amount of the catalyst is, based on the acid component, 0.2×10-4W5×10-4mol when the substituent group of the aromatic ring is an electron-attracting group, and ≤50×10-4mol in the other case.
COPYRIGHT: (C)1982,JPO&Japio
JP11193180A 1980-08-14 1980-08-14 Preparation of polyester Pending JPS5736121A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11193180A JPS5736121A (en) 1980-08-14 1980-08-14 Preparation of polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11193180A JPS5736121A (en) 1980-08-14 1980-08-14 Preparation of polyester

Publications (1)

Publication Number Publication Date
JPS5736121A true JPS5736121A (en) 1982-02-26

Family

ID=14573712

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11193180A Pending JPS5736121A (en) 1980-08-14 1980-08-14 Preparation of polyester

Country Status (1)

Country Link
JP (1) JPS5736121A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5659074A (en) * 1995-06-12 1997-08-19 Zeneca Limited Herbicide intermediates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5659074A (en) * 1995-06-12 1997-08-19 Zeneca Limited Herbicide intermediates

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