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    ABS moulding compositions
    11.
    发明授权
    ABS moulding compositions 失效
    ABS模塑组合物

    公开(公告)号：US4009227A

    公开(公告)日：1977-02-22

    申请号：US570996

    申请日：1975-04-22

    申请人： Karl-Heinz Ott ,  Harry Rohr ,  Gert Humme ,  Leo Morbitzer

    发明人： Karl-Heinz Ott ,  Harry Rohr ,  Gert Humme ,  Leo Morbitzer

    IPC分类号： C08L55/00 ,  C08L7/00 ,  C08L21/00 ,  C08L25/00 ,  C08L25/12 ,  C08L33/00 ,  C08L33/02 ,  C08L51/00 ,  C08L51/02 ,  C08L55/02

    CPC分类号： C08L25/12 ,  C08L55/02

    摘要： Moulding compositions based on ABS-graft polymers, containing:A. 5 to 70 parts, by weight of a graft polymer obtained by grafting 20 to 60 parts by weight of a mixture of styrene and acrylonitrile in a ratio, by weight, of 95 : 5 to 60 : 40 onto 80 to 40 parts, by weight, of polybutadiene or a butadiene copolymer with a butadiene content of > 30% with an average particle diameter of 0.26 to 0.65 .mu. and a grafting degree of 0.15 to 0.7;B. 0 to 50 parts, by weight, of a graft polymer obtained by polymerizing 40 to 60 parts, by weight, of a mixture of styrene and acrylonitrile in a ratio, by weight, of 95 : 5 to 60 : 40 onto 60 to 40 parts, by weight, of polybutadiene or a butadiene copolymer with a butadiene content of more than 30%, with an average particle diameter of from 0.05 to 0.25 .mu. and a grafting degree of 0.4 to 0.9; andC. 25 to 95 parts, by weight, of a copolymer of styrene and/or .alpha.-methyl styrene on the one hand and acrylonitrile on the other hand in a ratio by weight, of 80 : 20 to 60 : 40 with an average molecular weight M.sub.w (weight average) of from 50,000 to 200,000 and a molecular heterogeneity U of 4.5 to 1.0; such thatD. the ratios, by weight, of styrene (including .alpha.-methyl styrene if present) to acrylonitrile satisfy the following conditions: ##EQU1##

    Mixtures of polypropylene and liquid saturated diorganopolysiloxanes
    17.
    发明授权
    Mixtures of polypropylene and liquid saturated diorganopolysiloxanes 失效
    聚丙烯和液体饱和二有机聚硅氧烷的混合物

    公开(公告)号：US4287108A

    公开(公告)日：1981-09-01

    申请号：US119940

    申请日：1980-02-08

    申请人： Ulrich Grigo ,  Leo Morbitzer ,  Klaus-Peter Arlt ,  Rudolf Binsack ,  Josef Merten

    发明人： Ulrich Grigo ,  Leo Morbitzer ,  Klaus-Peter Arlt ,  Rudolf Binsack ,  Josef Merten

    IPC分类号： C08L23/00 ,  C08L23/12 ,  C08L87/00 ,  C08L101/00 ,  C08L83/04

    CPC分类号： C08L23/12 ,  C08L83/04

    摘要： A homogeneous, thermoplastic mixture comprising (A) from 85 to 99.5% by weight of isotactic polypropylene; and (B) from 15 to 0.5% by weight of a liquid, saturated diorganopolysiloxane having a viscosity of from 30,000 to 80,000 cSt at 20.degree. C.The elastic properties of moulded articles produced from the polypropylene/diorganopolysiloxane mixtures of the present invention are substantially improved by the addition of small quantities of diorganopolysiloxane while their dimensional stability under heat and their rigidity are largely preserved.

    摘要翻译： 一种均匀的热塑性混合物，其包含（A）85-99.5重量％的全同立构聚丙烯; 和（B）15至0.5重量％的在20℃下粘度为30,000至80,000cSt的液体饱和二有机聚硅氧烷。由本发明的聚丙烯/二有机聚硅氧烷混合物制备的模制品的弹性性质基本上 通过添加少量的二有机聚硅氧烷来改善，同时它们在加热下的尺寸稳定性和它们的刚性被大大保持。