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    Polymer mixture composed of an aromatic polycarbonate, optionally a polyalkyleneterephthalate and a graft copolymer
    2.
    发明授权
    Polymer mixture composed of an aromatic polycarbonate, optionally a polyalkyleneterephthalate and a graft copolymer 失效
    由芳族聚碳酸酯，任选的聚对苯二甲酸亚烷基酯和接枝共聚物组成的聚合物混合物

    公开(公告)号：US5367021A

    公开(公告)日：1994-11-22

    申请号：US180165

    申请日：1994-01-11

    申请人： Wilhelmus M. M. Roovers ,  Wilhelmus J. D. Steendam

    发明人： Wilhelmus M. M. Roovers ,  Wilhelmus J. D. Steendam

    IPC分类号： C08L69/00

    CPC分类号： C08L69/00

    摘要： The invention relates to a polymer mixture comprisingA) 55-90% by weight of an aromatic polycarbonate (A1) or a mixture of an aromatic polycarbonate (A1) and a polyalkylene terephthalate (A2);B) 10-30% by weight of a graft copolymer built up from a diene rubber graft base on which at least one of the following vinyl monomers has been grafted: styrene, acrylonitrile, methyl methacrylate;C) 0-15% by weight of a copolymer of styrene, alphamethyl styrene, methyl methacrylate or mixtures thereof and acrylonitrile, methacrylonitrile, methyl methacry late or mixtures thereof, the percentages by weight being calculated with respect to the sum of the constituents A, B and C, the diene rubber graft base having a monodisperse particle size distribution having such a narrow particle size distribution that the diameter of more than 50% by weight of the particles lies between 200 and 300 nanometers and the diameter of more than 70% by weight of the particles lies between 200 and 400 nanometers.The use of a graft copolymer having a certain particle size distribution results in a polymer mixture having improved properties.

    摘要翻译： 本发明涉及一种聚合物混合物，其包含A）55-90重量％的芳族聚碳酸酯（A1）或芳族聚碳酸酯（A1）和聚对苯二甲酸亚烷基酯（A2）的混合物; B）10-30重量％的由二烯橡胶接枝基质构成的接枝共聚物，其中至少一种以下乙烯基单体已经在其上接枝：苯乙烯，丙烯腈，甲基丙烯酸甲酯; C）0-15重量％的苯乙烯，α-甲基苯乙烯，甲基丙烯酸甲酯或其混合物和丙烯腈，甲基丙烯腈，甲基甲基丙烯酸甲酯或其混合物的共聚物，其重量百分比相对于组分A， B和C中，二烯橡胶接枝基质具有如此窄的粒度分布的单分散粒度分布，使得颗粒的重量大于50重量％的直径在200-300纳米之间，直径大于70重量％ 颗粒的重量在200和400纳米之间。 使用具有一定粒度分布的接枝共聚物导致具有改进性能的聚合物混合物。