Methyl Methacrylate resins and grafted acrylate-butadiene-styrene polymers
    4.
    发明授权
    Methyl Methacrylate resins and grafted acrylate-butadiene-styrene polymers 失效
    甲基丙烯酸甲酯树脂和接枝丙烯酸酯 - 丁二烯 - 苯乙烯聚合物

    公开(公告)号:US3922321A

    公开(公告)日:1975-11-25

    申请号:US48031274

    申请日:1974-06-17

    Abstract: By emulsion polymerizing a monomer mixture of an alkyl acrylate, styrene, and butadiene to produce an emulsion of a rubber polymer (A), adding to the latex containing 100 parts by weight of the rubber polymer (A) from 25 to 150 parts by weight of a monomer mixture (B) comprising an alkyl methacrylate, with or without a cross-linking monomer, and a vinyl monomer copolymerizable therewith, polymerizing the resulting mixture of the mixture (B) and the latex thereby to produce a graft copolymer (I), and mixing this graft copolymer (I) and a methacrylic resin (II), a methacrylic resin composition of high transparency, impact strength, and weather resistance is obtained.

    Abstract translation: 通过将丙烯酸烷基酯,苯乙烯和丁二烯的单体混合物乳液聚合以制备橡胶聚合物(A)的乳液,将含有100重量份橡胶聚合物(A)的胶乳添加至25至150重量份 包含具有或不具有交联单体的甲基丙烯酸烷基酯和可与其共聚的乙烯基单体的单体混合物(B)的混合物(B),聚合混合物(B)和胶乳的所得混合物,从而产生接枝共聚物(I) ,并将该接枝共聚物(I)和甲基丙烯酸系树脂(II)进行混合,得到高透明性,冲击强度和耐候性的甲基丙烯酸系树脂组合物。

    Process for preparing vinyl chloride compositions containing butadiene and butadiene-styrene copolymers
    5.
    发明授权
    Process for preparing vinyl chloride compositions containing butadiene and butadiene-styrene copolymers 失效
    制备含有丁二烯和丁二烯 - 苯乙烯共聚物的氯乙烯组合物的方法

    公开(公告)号:US3899547A

    公开(公告)日:1975-08-12

    申请号:US43093774

    申请日:1974-01-04

    Abstract: Vinyl chloride polymer compositions of improved transparency, impact strength, and workability obtained by blending a substantial quantity of vinyl chloride polymers containing vinyl chloride as the principal constituent thereof and a supplemental quantity of a resin produced from post-polymerization of a monomer mixture of styrene, methylmethacrylate, and a crosslinking agent on coagulated particles of a latex containing butadiene polymer or butadiene-styrene copolymer.

    Abstract translation: 通过混合大量含有氯乙烯作为其主要成分的氯乙烯聚合物和补充量的由苯乙烯单体混合物的后聚合产生的树脂而获得的具有改进的透明度,冲击强度和可加工性的氯乙烯聚合物组合物, 甲基丙烯酸甲酯,和含有丁二烯聚合物或丁二烯 - 苯乙烯共聚物的胶乳的凝结颗粒上的交联剂。

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