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    Rubber modified monovinylidene aromatic polymer compositions
    1.
    发明授权
    Rubber modified monovinylidene aromatic polymer compositions 失效
    橡胶改性单亚乙烯基芳族聚合物组合物

    公开(公告)号：US06211298B1

    公开(公告)日：2001-04-03

    申请号：US09404893

    申请日：1999-09-24

    申请人： Rony S. Vanspeybroeck ,  Mercedes R. Galobardes ,  Dominique Maes ,  Mary Ann Jones ,  Joseph M. Ceraso

    发明人： Rony S. Vanspeybroeck ,  Mercedes R. Galobardes ,  Dominique Maes ,  Mary Ann Jones ,  Joseph M. Ceraso

    IPC分类号： C08L3320

    CPC分类号： C08L25/12 ,  C08L27/12 ,  C08L51/04 ,  C08L55/02 ,  C08L83/04 ,  C08L2666/02 ,  C08L2666/24 ,  C08L2666/14

    摘要： The present invention is an improved rubber-modified polymeric composition comprising: (a) a continuous matrix phase comprising an interpolymer of a monovinylidene aromatic monomer and an ethylenically unsaturated nitrile monomer; and (b) from 5 to 40 weight percent, based on the total weight of said polymeric composition, of a rubber in the form of discrete rubber particles dispersed in said matrix, wherein the dispersed rubber particles comprise: (1) at least 33 weight percent based on the total rubber content, of a mass rubber particle component having a volume average particle diameter of from 0.15 to 0.40 micron; (2) from 15 to 67 weight percent based on the total rubber content, of a small-particle emulsion rubber component having a volume average diameter of from 0.05 to 0.30 micron; and (3) from 0 to 35 weight percent based on the total rubber content, of a large emulsion particle rubber component having a volume average diameter of from greater than 0.30 to 2.0 micron; wherein the rubber particles of the composition have an average light absorbance ratio of less than 1.4.

    摘要翻译： 本发明是改进的橡胶改性聚合物组合物，其包含：（a）包含单亚乙烯基芳族单体和烯属不饱和腈单体的互聚物的连续基质相; 和（b）基于所述聚合物组合物的总重量的5至40重量％的分散在所述基质中的分散橡胶颗粒形式的橡胶，其中分散的橡胶颗粒包含：（1）至少33重量％ 基于总橡胶含量的，体积平均粒径为0.15至0.40微米的质量橡胶颗粒组分的百分比;（2）基于总橡胶含量的15至67重量％的小颗粒乳液橡胶 体积平均直径为0.05至0.30微米的组分; 和（3）基于总橡胶含量为0至35重量％的体积平均直径大于0.30至2.0微米的大乳液颗粒橡胶组分;其中组合物的橡胶颗粒具有平均光吸收 比例小于1.4。