| 摘要 |
PURPOSE:The titled composition, obtained by incorporating a vinyl chloride based polymer with a polymer prepared by polymerizing vinyl chloride or a monomeric mixture consisting essentially thereof in the presence of ethylene/ methacrylic acid ester copolymer, and having improved weather, low-temperature impact and heat distortion resistance and thermal stability. CONSTITUTION:A vinyl chloride based resin composition obtained by incorporating 5-50pts.wt., preferably 10-20pts.wt. polymer prepared by polymerizing vinyl chloride or a monomeric mixture consisting essentially thereof in the presence of a copolymer of 95-25wt% ethylene and 5-75wt% preferably 20-60wt% methacrylic acid ester to give 30-80wt% copolymer content with 100pts.wt. vinyl chloride based polymer. Methyl methacrylate is used as the methacrylic acid ester, and the copolymer to be used has 0.1-300g/10min, preferably 1-150g/ 10min melt index.
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