| 摘要 |
PURPOSE:The titled composition, obtained by incorporating two specific kinds of methyl methacrylate based polymers with a graft copolymer containing an acrylic rubber, and having improved weather, heat distortion and impact resistance and processability while retaining the characteristics of the resins. CONSTITUTION:A vinyl chloride based resin composition obtained by incorporating (A) 50-80pts.wt. vinyl chloride resin containing >=80wt% vinyl chloride component with (B) 5-40pts.wt. methyl methacrylate based polymer, containing 75- 100wt% methyl methacrylate component, and having 0.05-2dl/g reduced viscosity, (C) 1-15pts.wt. methyl methacrylate based polymer, containing 65-100wt% methyl methacrylate component, and having 2-18dl/g reduced viscosity and (D) 5-30pts.wt. graft copolymer of 30-80wt% acrylic rubber with 70-20wt% compound selected from alkyl acrylates, alkyl methacrylates, aromatic vinyl compounds and cyanogen compounds. |
