| 摘要 |
PURPOSE:To provide the titled compsn. having excellent low-shrinkage quality, colorability, surface smoothness, water resistance, surface gloss and mechanical strength, consisting of an unsaturated polyester, a monomer copolymerizable therewith and a block copolymer mixture. CONSTITUTION:5-95wt% segment (a) composed of a monomer mixture of 70-100wt% styrene monomer and 30-0wt% copolymerizable monomer (e.g. acrylic acid) and 95-5wt% segment (h) composed of a monomer mixture of 1-100wt% fumarate ester and 99-0wt% vinyl acetate are polymerized in the presence of a polymer peroxide at 40-140 deg.C for 2-15hr to obtain a block copolymer mixture (C). 20-70wt% unsaturated polyester (A), 28-70wt% monomer (B) (e.g. styrene) copolymerizable with component A and 2-20wt% component C are mixed in a non-aqueous dispersion form. |
