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Polyvinyl chloride resin composition having excellent transparency and impact strength

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专利汇可以提供Polyvinyl chloride resin composition having excellent transparency and impact strength专利检索,专利查询,专利分析的服务。并且PVC resin compositions of improved transparency and impact are obtained by mixing the PVC with a graft polymer. The graft is produced by grafting first styrene and then methyl methacrylate onto an elastomer of butadiene, n-butyl acrylate, and styrene in the proportions shown in the accompanying ternary constitutional diagram. When the monomer(s) used in preparing the aforesaid graft polymer have a small quantity of C10 to C18 saturated fatty acid dissolved therein, the PVC compositions prepared from the graft polymer show further improvements in their properties.,下面是Polyvinyl chloride resin composition having excellent transparency and impact strength专利的具体信息内容。

  • 2. The resin composition as claimed in claim 1 wherein said graft polymer is prepared by polymerizing styrene and methyl methacrylate while adding continuously at least one of the monomers to said elastomer over an at least 30-minute period.
  • 3. The resin composition as claimed in claim 2 wherein at least one of styrene and methyl methacrylate to be polymerized in the presence of said elastomer (E) has uniformly dissolved therein 0.5-5 percent by weight based on said graft polymer of a saturated fatty acid having 10-18 carbon atoms.
  • 4. The resin composition as claimed in claIm 1 wherein said elastomer (E) is a terpolymer comprising 55-60 percent by weight 1,3-butadiene, 8-13 percent by weight n-butyl acrylate, and 30-38 percent by weight styrene.
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