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    • 7. 发明授权
    • Vinyl chloride resin composition
    • 氯乙烯树脂组合物
    • US06204327B1
    • 2001-03-20
    • US09147076
    • 1999-04-27
    • Akira TakakiShinichi YauchiKoji YuiRiichi NishimuraKentaro Takesada
    • Akira TakakiShinichi YauchiKoji YuiRiichi NishimuraKentaro Takesada
    • C08L5104
    • C08L27/06C08L51/003C08L51/04C08L51/06C08L2666/24C08L2666/02
    • A vinyl chloride resin composition containing a graft copolymer A having an average particle diameter of at least 0.15 &mgr;m, prepared by polymerizing 50 to 90% of a solid matter of a rubber latex having a glass transition temperature of at most O° C., the rubber latex being prepared by polymerizing 50 to 100% of butadiene and/or alkyl acrylate, 0 to 40% of an aromatic vinyl monomer, 0 to 10% of a vinyl monomer and 0 to 5% of a polyfunctional monomer, with 10 to 50% of a mixture comprising 10 to 100% of an alkyl methacrylate, 0 to 90% of an aromatic vinyl monomer, 0 to 25% of a vinyl cyamide monomer and 0 to 20% of a vinyl monomer; a graft copolymer B having an average particle diameter of 0.05 to 0.13 &mgr;m, prepared by polymerizing 50 to 90% of the solid matter of the rubber latex with 10 to 50% of the mixture; and a vinyl chloride resin C; wherein the weight ratio of (copolymer A)/(copolymer B) is 50/50 to 90/15, and the weight ratio of (the total amount of copolymer A and copolymer B)/(vinyl chloride resin composition C) is 1/99 to 30/70; the composition being excellent in impact resistance and usable for the production of a pipe, a window frame and the like.
    • 一种氯乙烯树脂组合物,其含有平均粒径为0.15μm以上的接枝共聚物A,其通过聚合50〜90%的玻璃化转变温度为0℃以下的橡胶胶乳的固体成分, 橡胶胶乳通过将50至100%的丁二烯和/或丙烯酸烷基酯,0至40%的芳族乙烯基单体,0至10%的乙烯基单体和0至5%的多官能单体聚合而制备,其中10至50 %的包含10至100%的甲基丙烯酸烷基酯,0至90%的芳族乙烯基单体,0至25%的乙烯基酰胺单体和0至20%的乙烯基单体的混合物; 通过使10〜50%的混合物聚合50〜90%的橡胶胶乳固体成分而得到的平均粒径为0.05〜0.13μm的接枝共聚物B; 和氯乙烯树脂C; (共聚物A)/(共聚物B)的重量比为50/50〜90/15,(共聚物A和共聚物B的总量)/(氯乙烯树脂组合物C)的重量比为1 / 99至30/70; 该组合物的耐冲击性优异并且可用于制造管,窗框等。