| abstract |
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. n CONSTITUTION: A polymer alloy comprising 50W80pts.wt. vinyl chloride polymer (A) consisting of 80wt% or more vinyl chloride, 5W40pts.wt. methyl methacrylate polymer (B) which consists of 75wt% or more methyl methacrylate, has a reduced viscosity measured at 25°C in a solution of 1g of this polymer in 1l of chloroform of 0.01W0.15l/g, and is obtained by suspension polymerization, and 5W30pts.wt. graft copolymer (C) of 30W80wt% conjugated diene rubber with 70W 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. n COPYRIGHT: (C)1986,JPO&Japio |