JPS55164220A - Preparation of unsaturated polyester resin - Google Patents
Preparation of unsaturated polyester resinInfo
- 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
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
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)
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 |
-
1979
- 1979-06-07 JP JP7160679A patent/JPS55164220A/en active Pending
Cited By (1)
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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