| 摘要 |
PURPOSE:To provide the subject composition composed of a specific graft polymer and an unsaturated polyester resin or a vinyl ester resin, having low shrinkage and excellent smoothness and useful for molding material, etc. CONSTITUTION:The objective composition is composed of (A) 5-30wt.% of a graft polymer composed of a polyester and a vinyl polymer and produced by dissolving a saturated polyester having a numberaverage molecular weight of >=5,000 and containing terminal group essentially consisting of hydroxyl group and 0.01-1 equivalent (based on 1 equivalent of the hydroxyl group) of an unsaturated isocyanate (e.g. isocyanatoethyl methacrylate) in a vinyl monomer (e.g. styrene) and reacting the components and (B) an unsaturated polyester resin or a vinyl ester resin [e.g. a reaction product of an epoxy resin and (meth) acrylic acid]. |
