JPS55164220A - Preparation of unsaturated polyester resin - Google Patents

Preparation of unsaturated polyester resin

Info

Publication number
JPS55164220A
JPS55164220A JP7160679A JP7160679A JPS55164220A JP S55164220 A JPS55164220 A JP S55164220A JP 7160679 A JP7160679 A JP 7160679A JP 7160679 A JP7160679 A JP 7160679A JP S55164220 A JPS55164220 A JP S55164220A
Authority
JP
Japan
Prior art keywords
acid
preparation
polyester resin
unsaturated polyester
reacted
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
JP7160679A
Other languages
Japanese (ja)
Inventor
Akira Miyamoto
Senzo Shimizu
Yasumitsu Higuchi
Toshiyuki Abe
Koji Yamamoto
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 Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co Inc
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 Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Priority to JP7160679A priority Critical patent/JPS55164220A/en
Publication of JPS55164220A publication Critical patent/JPS55164220A/en
Pending legal-status Critical Current

Links

Landscapes

  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: To obtain a resin having improved water and chemical resistance and mechanical properties in a short time economically, by reacting isophthalic acid with propylene oxide in the obsence of a catalyst, and then with an unsaturated dibasic acid etc.
CONSTITUTION: (I) Isophthalic acid is reacted with (II) propylene oxide at a molar ratio of (II)W(I) of 1.4W3.0:1 at 160W230°C, preferably 180W220°C, in the absence of a catalyst to give (A) an oligoester, which is then reacted with (B) a dibasic acid component comprising an unsaturated dibasic acid, e.g. maleic acid, (or anhydride) to give an acid value of 30 or below.
COPYRIGHT: (C)1980,JPO&Japio
JP7160679A 1979-06-07 1979-06-07 Preparation of unsaturated polyester resin Pending JPS55164220A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7160679A JPS55164220A (en) 1979-06-07 1979-06-07 Preparation of unsaturated polyester resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7160679A JPS55164220A (en) 1979-06-07 1979-06-07 Preparation of unsaturated polyester resin

Publications (1)

Publication Number Publication Date
JPS55164220A true JPS55164220A (en) 1980-12-20

Family

ID=13465473

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7160679A Pending JPS55164220A (en) 1979-06-07 1979-06-07 Preparation of unsaturated polyester resin

Country Status (1)

Country Link
JP (1) JPS55164220A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9139505B2 (en) 2013-11-08 2015-09-22 Eastman Chemical Company Production of terephthalic acid di-esters using alcohol-amine promoters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9139505B2 (en) 2013-11-08 2015-09-22 Eastman Chemical Company Production of terephthalic acid di-esters using alcohol-amine promoters

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