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    ABS moulding compositions
    5.
    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##

    Process for working up dispersions of elastic-thermoplastic or thermoplastic plastics
    6.
    发明授权
    Process for working up dispersions of elastic-thermoplastic or thermoplastic plastics 失效
    处理弹性热塑性塑料或热塑性塑料的分散体的方法

    公开(公告)号：US4113796A

    公开(公告)日：1978-09-12

    申请号：US400980

    申请日：1973-09-26

    申请人： Jurgen Bischoff ,  Friedrich Kowitz ,  Karl-Heinz Ott ,  Herbert Schuster ,  Harry Rohr ,  Hans Weitzel

    发明人： Jurgen Bischoff ,  Friedrich Kowitz ,  Karl-Heinz Ott ,  Herbert Schuster ,  Harry Rohr ,  Hans Weitzel

    IPC分类号： B01J2/08 ,  B29B9/08 ,  C08F6/22 ,  C08J3/16 ,  C08F6/18 ,  C08L51/00

    CPC分类号： C08J3/16 ,  B01J2/08 ,  B29B9/08 ,  C08F6/22

    摘要： Isolating thermoplastic or thermoelastic polymers in the form of a powder of limited water and precipitant content and uniform grain size from their aqueous dispersions wherein(i) a polymer dispersion and a precipitant are intensively mixed at an uptake of mechanical energy of 0.2 to 0.6 KWh per m.sup.3 of dispersion thus causing high turbulence,(ii) the polymer is precipitated while in this state of high turbulence at a temperature below the sintering temperature of the polymer,(iii) the precipitated polymer particles are agglomerated and hardened while still in contact with the aqueous liquor either in one or in several stages, and(iv) the aqueous liquor and agglomerated polymer particles are separated from one another.

    摘要翻译： 隔离热水或热弹性聚合物，其形式为有限水和沉淀剂含量的粉末，并且其水分散体具有均匀的晶粒尺寸，其中（I）聚合物分散体和降解剂在机械能力的0.2-3.0KWh的压力下混合均匀 m3的分散体，从而引起高湍流，（II）聚合物在下列温度下在高温下在聚合物的烧结温度下降低，（III）降低的聚合物颗粒在仍然与之接触时被凝聚和硬化 水性液体在一个或几个阶段，和（IV）水性液体和聚合聚合物颗粒从另一个分离。