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    Impact-resistant resin composition and a product produced from it
    5.
    发明公开
    Impact-resistant resin composition and a product produced from it 无效
    SchlagzäheHarzzusammensetzung und daraus hergestellteGegenstände。

    公开(公告)号：EP0043273A1

    公开(公告)日：1982-01-06

    申请号：EP81302949.3

    申请日：1981-06-29

    申请人： JAPAN SYNTHETIC RUBBER CO., LTD.

    发明人： Abe, Mitsuo ,  Kitagawa, Yozo ,  Tsutsumi, Tadahiko ,  Kato, Tadashi ,  Atomori, Seiichi

    IPC分类号： C08L55/02 ,  C08L51/04 ,  C08F279/04

    CPC分类号： C08F279/04 ,  C08F255/06 ,  C08L55/02 ,  Y10T428/1376 ,  Y10T428/249976 ,  Y10T428/249991 ,  Y10T428/249992 ,  Y10T428/31583 ,  C08F212/08 ,  C08L2666/04

    摘要： An impact-resistant resin composition comprising a graft polymer (in which an aromatic alkenyl compound and an alkenyl cyanide compound are grafted onto a rubbery polymer) and a matrix (comprising a copolymer of an aromatic alkenyl compound and an alkenyl cyanide compound) can have improved vacuum-formability and the moulded articles prepared by vacuum-forming the composition can have smaller variations in thickness from point to point and a smaller reduction in strength due to contact with foamed polyurethane by ensuring that the following conditions are met:

    (a) the proportion of rubber polymer in the composition is from 10 to 30% by weight:
    (b) the graft polymer has a degree of grafting of from 70 to 120% by weight;
    (c) the matrix has an intrinsic viscosity of from 0.55 to 0.80 dl/g, measured at 30°C in methyl ethyl ketone; and
    (d) the weight ratio of the aromatic alkenyl compound to the alkenyl cyanide compound in the composition is from 2.0 : 1 to 2.8 : 1.

    Incorporation in the composition of from 0.01 to 2% by weight of a diorganopolysiloxane having a viscosity of from 5 to 100,000 centistokes at 25°C and/or from 0.1 to 3% by weight of a metal salt of a fatty acid improves the ability of the composition to maintain its strength upon contact with foamed polyurethane. The resulting composition is of value in forming the box body of a refrigerator.

    摘要翻译： 包含接枝聚合物（其中芳族烯基化合物和链烯基氰化合物接枝到橡胶状聚合物上）和基质（包含芳族烯基化合物和链烯基氰化合物的共聚物）的耐冲击树脂组合物可以改善 真空成型性和通过真空成型组合物制备的模制品可以从点到点具有较小的厚度变化，并且通过确保满足以下条件，由于与发泡聚氨酯的接触而降低强度的降低：...（a） 橡胶聚合物在组合物中的比例为10〜30重量％;（b）接枝聚合物的接枝度为70〜120重量％;（c）基体的特性粘度为0.55 至0.80dl / g，在30℃下在甲基乙基酮中测量; 和（d）组合物中芳族烯基化合物与链烯基氰化合物的重量比为2.0:1至2.8:1。组合物中加入0.01至2重量％的 在25℃下粘度为5至100,000厘沲和/或0.1至3重量％的脂肪酸​​金属盐的二有机聚硅氧烷提高了组合物在与泡沫聚氨酯接触时保持其强度的能力。 所得组合物在形成冰箱的箱体中是有价值的。