| 摘要 |
PURPOSE:A polymer alloy having excellent heat distortion resistance, impact resistance, coloration resistance, and moldability, comprising a vinyl chloride polymer, a methyl methacrylate polymer, and a graft copolymer of a conjugated diene rubber with a specified compound. CONSTITUTION:A polymer alloy comprising 50-80pts.wt. vinyl chloride polymer (A) consisting of 80wt% or more vinyl chloride, 5-40pts.wt. methyl methacrylate polymer (B) which consists of 75wt% or more methyl methacrylate, has a reduced viscosity measured at 25 deg.C in a solution of 1g of this polymer in 1l of chloroform of 0.01-0.15l/g, and is obtained by suspension polymerization, and 5-30pts.wt. graft copolymer (C) of 30-80wt% conjugated diene rubber with 70- 20wt% of one or more compounds of an alkyl (meth)acrylate, an aromatic vinyl compound, and a cyanide, with the total amount of A, B and C of 100pts.wt. |
