Patent ID: 7332544

Claim:
A chlorinated vinyl chloride-based resin composition for use in injection molding in which from 2 to 9 parts by weight of an MBS resin and from 0.5 to 3 parts by weight of chlorinated polyethylene are blended to 100 parts by weight of a chlorinated vinyl chloride-based resin with a chlorine content of from 62 to 70% by weight obtained by post-chlorinating a vinyl chloride-based resin; wherein an acrylic resin for improving the processability of vinyl chloride is further added to the blend, said acrylic resin comprises polymethyl methacrylate as a main ingredient and has a specific viscosity at 30° C. of not exceeding 1.5 when 0.4 g thereof is dissolved in 100 ml of benzene.