MODIFIED STYRENE-FUMARATE RESIN, UNSATURATED POLYESTER RESIN COMPOSITION, UNSATURATED POLYESTER RESIN MOLDING, AND UTILIZATION METHOD OF WASTE PLASTIC

摘要

PROBLEM TO BE SOLVED: To provide a modified styrene-fumarate resin and a utilization method of a waste plastic aiming at effective utilization of resources by reusing the waste plastic as a low shrinkage material, and to provide an unsaturated polyester resin composition preserving low shrinking percentage and an unsaturated polyester resin molding with enhanced dimensional accuracy by using a styrene-fumarate resin.

SOLUTION: This modified styrene-fumarate resin is obtained by dehydration reaction of the styrene-fumarate resin, obtained by hydrolyzing an unsaturated polyester resin with subcritical water, with alcohols or phenols.

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