VINYL ESTER RESIN COMPOSITION HAVING LOW SHRINK PROPERTIES

摘要

PROBLEM TO BE SOLVED: To provide a vinyl ester resin composition having low shrink properties which forms a molding bringing extremely little shrink when it cures. SOLUTION: A vinyl ester resin composition having low shrink properties comprises a vinyl ester and/or a monomer copolymerizable with the vinyl ester wherein a thermoplastic resin having a functional group of at least 400 [(MPa)1/2 cm3mol-1] of cohesive energy parameter F is compounded as a low shrinking agent, a filler and a curing agent. The thermoplastic resin is a polystyrene resin or a poly(meth)acrylate resin, and the specified functional group is preferably a hydroxyl group, a carboxyl group or an amino group.