| 摘要 |
PURPOSE:To prepare a resin compsn. which shrinks little during curing and gives a molded article with an excellent heat resistance by compounding an unsatd. polyester, a monomer copolymerizable with the polyester, and a specific AB type block copolymer. CONSTITUTION:An unsatd. polyester, a monomer copolymerizable with the polyester and an AB type block copolymer are compounded in an amt. of the AB type block copolymer of 3-27 pts.wt. based on 100 pts.wt. the sum of the polyester and the monomer. In the AB type block copolymer, the segment A comprises 90wt.% or lower maleimide units and 10wt.% or higher units of a monomer copolymerizable with the maleimide; the segment B comprises 70-100wt.% vinyl acetate units and 30-10wt.% units of a monomer copolymerizable with vinyl acetate; the content of the maleimide units is 4.5-85.5wt.%; and the contents of segments A and B are 5-95wt.% and 95-5wt.%, respectively. |
