Unsaturated ester group terminated polydienes as unsaturated polyester modifiers
Abstract
Abstract POLYESTER RESINS OF INCREASED FLEXIBILITY AND STRENGTH ARE OBTAINED BY MIXING USUALLY LIQUID, UNSATURATED POLYESTERS WITH CERTAIN, USUALLY LIQUID, POLYMERIZABLE POLYDIENE ETHYLENICALLY-UNSATURATED ESTERS HAVING TERMINAL, ALLYLIC, ACYLOXY GROUPS, SUCH AS ACRYLYLOXY, WHICH ARE TERMINALLY ETHYLENICALLY-UNSATURATED, THEREBY FORMING USUALLY LIQUID POLYMERIZABLE COMPOSITIONS WHICH ARE POLYMERIZABLE TO SOLID POLYMERS. COMMERCIAL UNSATURATED POLYESTER RESINS CONTAINING 0 TO ABOUT 75% BY WEIGHT OF STYRENE CAN BE USED. FROM ABOUT 5 TO 95% OF THE POLYMERIZABLE POLYDIENE ETHYLENICALLY-UNSATURATED ESTER CAN BE USED IN THE COMPOSITION, ALTHOUGH USUALLY ABOUT 10 TO 50% BY WEIGHT IS PREFERRED.
Inventors
- 👤 R Thompson
- 👤 P Ryan
Bibliographic Details
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