| 摘要 |
PURPOSE:To obtain a thermoplastic resin composition improved in impact resistance, appearance and compatibility by mixing a specified graft copolymer with a hydrogenation product of a specified modified block copolymer. CONSTITUTION:70-95wt.% graft copolymer (A) prepared by grafting 30-95 pts.wt. monomer mixture comprising 60-70wt.% aromatic vinyl monomer and 30-40wt.% vinyl cyanide monomer onto 5-70 pts.wt. rubbery polymer is mixed with 5-30wt.% hydrogenation product of a vinylaromatic compound/conjugate diene block copolymer (B) modified with an unsaturated carboxylic acid or its anhydride. Component A in which the aromatic vinyl monomer is styrene and the vinyl cyanide monomer is acrylonitrile is desirable. |
