| 摘要 |
PURPOSE:To obtain the titled composition having improved heat resistance, flame retardance, impact resistance, etc., by blending a specific imidated polymer with a rubber modified imidated polymer, etc., by the use of a specific single screw extruder having a specific kneading zone. CONSTITUTION:10-80wt% of (A) an imidated polymer obtained by reacting a copolymer consisting of an aromatic vinyl monomer, maleic anhydride, etc., with ammonia, etc., and/or (B) an imide group-containing rubber modified imidated polymer obtained by subjecting a rubber-like polymer to graft polymeri zation with aromatic vinyl monomer, an unsaturated dicarboxylic acid anhydride, etc., and reacting the graft polymer with ammonia, etc., is blended with (C) 10-60wt% graft copolymer obtained by copolymerizing a rubber-like polymer with an aromatic vinyl, etc., (D) 0-60wt% copolymer of aromatic vinyl, vinyl cyanide, etc., and (E) 30-80wt% polyvinyl chloride containing 0-20wt% coplymerization component by the use of a specific single screwextruder having a kneading zone consisting of a screw with a polygonal section in a position corresponding to a cylinder with a polygonal section at part between a feed opening and a vent opening. |
