JPS55161820A - Production of unsaturated polyester resin - Google Patents
Production of unsaturated polyester resinInfo
- Publication number
- JPS55161820A JPS55161820A JP7045079A JP7045079A JPS55161820A JP S55161820 A JPS55161820 A JP S55161820A JP 7045079 A JP7045079 A JP 7045079A JP 7045079 A JP7045079 A JP 7045079A JP S55161820 A JPS55161820 A JP S55161820A
- Authority
- JP
- Japan
- Prior art keywords
- dibasic acid
- oligoester
- moles
- treated
- anhydride
- 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 economically titled resin having excellent water resistance and chemical resistance, by a method wherein a specified oligoester which is treated with a silica-alumina cpd. is reacted with a dibasic acid component contg. an unsaturated dibasic acid (anhydride).
CONSTITUTION: Isophthalic acid is reacted with propylene oxide in the presence of an amine cpd. to obtain an oligoester which is then heated at a temp. of 180W300°C to remove volatile matters. The heat-treated oligoester is treated with a silica- alumina cpd. having surface adsorption activity to remove the remaining volatile matters and nonvolatile contaminants. The product (A component) is blended with (B) a dibasic acid component contg. an unsaturated dibasic acid (anhydride) such as maleic anhydride, fumaric acid in an amount determined by the formula (wherein a is moles of unsaturated dibasic acid; b is moles of satd. dibasic acid; c is moles of oligoester; d is moles of polyhydric alcohol which is used together with (A) and (B) components). The mixt. is subjected to a condensation reaction to obtain the desired resin.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7045079A JPS55161820A (en) | 1979-06-05 | 1979-06-05 | Production of unsaturated polyester resin |
US06/150,691 US4306056A (en) | 1979-05-23 | 1980-05-16 | Process for producing an oligoester and producing unsaturated polyester resin by use thereof |
GB8016996A GB2053202B (en) | 1979-05-23 | 1980-05-22 | Processes for producing an oligoester and producing unsaturated polyester resin by use thereof |
FR8011457A FR2457305A1 (en) | 1979-05-23 | 1980-05-22 | PROCESSES FOR PRODUCING AN OLIGO-ESTER AND FOR PRODUCING AN UNSATURATED POLYESTER RESIN USING THE SAME |
DE3019859A DE3019859C2 (en) | 1979-05-23 | 1980-05-23 | Process for the production of an oligoester of isophthalic acid and its use for the production of an unsaturated polyester resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7045079A JPS55161820A (en) | 1979-06-05 | 1979-06-05 | Production of unsaturated polyester resin |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55161820A true JPS55161820A (en) | 1980-12-16 |
Family
ID=13431845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7045079A Pending JPS55161820A (en) | 1979-05-23 | 1979-06-05 | Production of unsaturated polyester resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55161820A (en) |
-
1979
- 1979-06-05 JP JP7045079A patent/JPS55161820A/en active Pending
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