VINYL CHLORIDE-BASED RESIN COMPOSITION FOR RENOVATION PIPE AND RENOVATION PIPE MADE OF VINYL CHLORIDE-BASED RESIN COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a vinyl chloride-based resin composition for renovation pipe suitable for obtaining a renovation pipe having both an excellent mechanical strength and impact resistance and workability, and a renovation pipe made of the vinyl chloride-based resin composition.;SOLUTION: This vinyl chloride-based resin composition for renovation pipe is obtained by adding an epoxy compound compatible with a vinyl chloride-based resin in an amount of 3-30 pts.wt. based on 100 pts.wt. of the vinyl chloride-based resin prepared by carrying out a graft copolymerization of 90-97 wt.% of vinyl chloride monomer or vinyl chloride monomer and other copolymerizable monomers to 3-10 wt.% of an acrylic copolymer obtained by copolymerizing 100 pts.wt. of an acrylic monomer component comprising ≥50 wt.% of an alkyl (meth)acrylate monomer having -140 to -20°C glass transition temperature in the single polymer and ≤50 wt.% of other acrylic monomers and 0.01-30 pts.wt. of a polyfunctional monomer component and having 400-2,500 mean polymerization degree. The renovation pipe made of the vinyl chloride-based resin composition is composed of the vinyl chloride-based resin composition for renovation pipe.;COPYRIGHT: (C)2002,JPO