| 摘要 |
PROBLEM TO BE SOLVED: To provide a molded article of a chlorinated polyvinyl chloride resin having both impact resistance and heat resistance, and a resin composition which enables preparation of such a molded article.SOLUTION: The heat-chlorinated vinyl chloride resin composition comprises a heat-chlorinated vinyl chloride resin and an impact resistance modifier, and substantially does not contain an inorganic compound as a heat stabilizer. Hereby, improved impact resistance of a heat-chlorinated vinyl chloride resin is obtained, on the other hand, a permissible level of heat resistance is maintained. Preferably, the impact resistance modifier is a copolymer of an alkyl (meth)acrylate monomer component and a diene-based rubbery polymer. In the copolymer, a content of the alkyl (meth)acrylate monomer component is 26 wt.% or more and 40 wt.% or less, and the copolymer contains particles having an average particle diameter of 0.1 to 240 μm. |
