| 摘要 |
PROBLEM TO BE SOLVED: To obtain a vinyl chloride-based resin molded product which has excellent shock resistance, and keeps a good surface state even if molded over a long period. SOLUTION: This vinyl chloride-based resin molded product contains, as a main component, a vinyl chloride-based resin obtained by graft copolymerizing vinyl chloride with an acrylic copolymer obtained by polymerizing a monomer composition obtained by mixing a multifunctional monomer with an alkyl (meth) acrylate monomer having a glass transition temperature lower than -20 deg.C of homopolymer or an acrylic monomer mixture consisting of the alkyl (meth) acrylate monomer and a monomer having a glass transition temperature of -20 deg.C or higher of homopolymer, and has an Izod impact strength of 50 kg.cm/ cm2 or larger at 23 deg.C as measure by using a test specimen having a notch according to JIS K7 110, an initial shear modulus of 105 Pa or larger at 20 deg.C as measured by using a molded product for the shearing stress relaxation test, and an average relaxation time of 5-30 sec. |
