Process for preparation of unsaturated polyester
Abstract
Abstract IMPROVED PROCESS FOR PRODUCING AN UNSATURATED POLYESTER WHICH COMPRISES REACTING A POLYHYDRIC ALCOHOL COMPONENT COMPOSED OF NOT MORE THAN 50 MOL PERCENT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PROPYLENE GLYCOL, PROPYLENE OXIDE, DIETHYLENE GLYCOL AND DIPROPYLENE GLYCOL AND 50 TO 100 MOL PERCENT OF ETHYLENE OXIDE AND/OR ETHYLENE GLYCOL WITH A DICARBOXYLIC ACID COMPONENT COMPOSED OF 90 TO 20 MOL PERCENT OF AN UNSATURATED ALIPHATIC DICARBOXYLIC ACID OR ITS ACID ANHYDRIDE AND 10 TO 80 MOL PERCENT OF A METHYL-SUBSTITUTED BENZENEDICARBOXYLIC ACID WHICH MAY CONTAIN UP TO 20 MOL PERCENT OF ANOTHER SATURATED DICARBOXYLIC ACID, THE AMOUNTS OF SAID ETHYLENE GLYCOL AND/OR ETHYLENE OXIDE AND SAID METHYL-SUBSTITUTED BENZENEDICARBOXYLIC ACID BEING DEFINED BY THE FOLLOWING FORMULA 3/7(X-30)$Y WHEREIN X IS THE MOL PERCENT OF THE ETHYLENE GLYCOL AND/OR ETHYLENE OXIDE IN SAID POLYHYDRIC ALCOHOL COMPONENT, AND Y IS THE MOL PERCENT OF THE METHYL-SUBSTITUTED BENZENEDICARBOXYLIC ACID IN SAID DICARBOXYLIC ACID COMPONENT.
Inventors
- 👤 Y Aito
- 👤 T Fujii
- 👤 N Saiki
- 👤 S Irie
- 👤 Y Nakatsuji
Bibliographic Details
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