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    Polymer alloys of high ageing resistance
    3.
    发明授权
    Polymer alloys of high ageing resistance 失效
    耐老化的聚合物合金

    公开(公告)号：US5274031A

    公开(公告)日：1993-12-28

    申请号：US435057

    申请日：1989-11-13

    申请人： Herbert Eichenauer ,  Alfred Pischtschan ,  Christian Lindner

    发明人： Herbert Eichenauer ,  Alfred Pischtschan ,  Christian Lindner

    IPC分类号： C08L51/00 ,  C08L51/04 ,  C08L51/06 ,  C08L51/08

    CPC分类号： C08L51/04 ,  C08L51/085

    摘要： Molding compounds ofA) 5 to 95 parts by weight of a graft product of resin-forming monomers on a particulate silicone rubber having a total rubber content of from 30 to 90% by weight andB) 95 to 5 parts by weight of resin-forming monomers on a particulate EPDM rubber having a total rubber content of 10 to 50% by weight andC) 10 to 200 parts by weight (based on 100 parts by weight A+B) of a graft product of resin-forming monomers on a particulate acrylate rubber having a total rubber content of from 30 to 80% by weight.

    摘要翻译： A）成型化合物A）5至95重量份的树脂形成单体的接枝产物在总橡胶含量为30至90重量％的颗粒状硅橡胶上，B）95至5重量份树脂 - 在总橡胶含量为10至50重量％的颗粒状EPDM橡胶上形成单体，C）10至200重量份（基于100重量份A + B）的树脂形成单体的接枝产物 总橡胶含量为30至80重量％的颗粒状丙烯酸酯橡胶。

    Process for the preparation of binary .alpha.-methylstyrene/acrylonitrile resins by multi-stage bulk polymerization
    5.
    发明授权
    Process for the preparation of binary .alpha.-methylstyrene/acrylonitrile resins by multi-stage bulk polymerization 失效
    通过多阶段本体聚合制备二元α-甲基苯乙烯/丙烯腈树脂的方法

    公开(公告)号：US4795780A

    公开(公告)日：1989-01-03

    申请号：US75775

    申请日：1987-07-20

    申请人： Frank Wingler ,  Klaus Summermann ,  Gerd Wassmuth ,  Alfred Pischtschan ,  Joachim Doring

    发明人： Frank Wingler ,  Klaus Summermann ,  Gerd Wassmuth ,  Alfred Pischtschan ,  Joachim Doring

    IPC分类号： C08F2/00 ,  C08F2/02 ,  C08F20/42 ,  C08F212/10 ,  C08F220/44 ,  C08F291/00 ,  C08F291/02 ,  C08F297/04

    CPC分类号： C08F220/44

    摘要： Process for the preparation of thermoplastic copolymers of .alpha.-methylstyrene and acrylonitrile by continuous bulk copolymerization ofA. 30 to 50 mol % of .alpha.-methylstyrene andB. 70 to 50 mol % of acrylonitrileat temperatures from 60.degree. to 120.degree. C. with average residence times of 4 to 12 hours in the presence of initiators which supply free radicals, carried out in at least two continuously operated mixed tank reactors, characterized in that 100 molar parts of a monomer mixture ofA.sub.0. 34 to 52 mol % of .alpha.-methylstyrene andB.sub.0. 66 to 48 mol % of acrylonitrileare fed continuously into the first tank reactor per unit time, and, with back-mixing, are copolymerized up to a conversion of 5 to 30 molar parts to give a copolymer of the compositionA.sub.1. 49 to 53 mol % of .alpha.-methylstyrene andB.sub.1. 51 to 47 mol % of acrylonitrile,and the mixture consisting of 70 to 95 molar parts of the monomers A and B and 5 to 30 molar parts of the copolymer of the composition A.sub.1 -B.sub.1 is transferred continuously to the second tank reactor and is polymerized there up at a further conversion of 5 to 55 molar parts to a total conversion of 20 to 60 molar parts to give further copolymer of the compositionA.sub.1. 49 to 53 mol % of .alpha.-methylstyrene andB.sub.1. 51 to 47 mol % of acrylonitrile,0,5 to 11.5 molar parts of acrylonitrile being removed from the vapor condenser of the second tank reactor and recycled to the first tank reactor per unit time.

    摘要翻译： α-甲基苯乙烯和丙烯腈的热塑性共聚物的制备方法，通过A.在30℃〜120℃的温度下，将A.30〜50摩尔％的α-甲基苯乙烯和B.70〜50摩尔％的丙烯腈与 在至少两台连续操作的混合罐式反应器中进行自由基引发剂的存在下，平均停留时间为4至12小时，其特征在于，将100摩尔份的A0的单体混合物。 34〜52摩尔％的α-甲基苯乙烯和B0。 将66〜48摩尔％的丙烯腈连续进料到第一罐式反应器中，并且通过反混合共聚至5-30摩尔份的转化率，得到组合物A1的共聚物。 49〜53摩尔％的α-甲基苯乙烯和B1。 丙烯腈为51〜47摩尔％，将由70〜95摩尔份的单体A，B和5〜30摩尔份的组合物A1-B1的共聚物组成的混合物连续地转移到第2槽式反应器中， 在其上进一步转化5至55摩尔份，总转化率为20至60摩尔份，得到组合物A1的其它共聚物。 49〜53摩尔％的α-甲基苯乙烯和B1。 丙烯腈为51〜47摩尔％，丙烷腈为0.5〜11.5摩尔份，从第二罐式反应器的蒸气冷凝器中除去，每单位时间再循环至第一罐式反应器。

    Polymer mixtures of high ageing resistance
    7.
    发明授权
    Polymer mixtures of high ageing resistance 失效
    高耐老化聚合物混合物

    公开(公告)号：US5272205A

    公开(公告)日：1993-12-21

    申请号：US435056

    申请日：1989-11-13

    申请人： Herbert Eichenauer ,  Alfred Pischtschan ,  Christian Lindner

    发明人： Herbert Eichenauer ,  Alfred Pischtschan ,  Christian Lindner

    IPC分类号： C08L51/00 ,  C08L51/04 ,  C08L51/06 ,  C08L51/08

    CPC分类号： C08L51/04 ,  C08L51/085

    摘要： Molding compounds of(A) 5 to 95% by weight of a graft product of a mixture of 50 to 100 parts by weight styrene, .alpha.-methyl styrene, vinyl toluene, methyl methacrylate or mixtures thereof and 0 to 50 parts by weight acrylonitrile on a particulate silicone rubber with a mean particle diameter (d.sub.50) of from 0.10 to 0.50 .mu.m having a total rubber content of from 30 to 90% by weight and(B) 95 to 5% by weight of a graft product of a mixture of 50 to 100 parts by weight styrene, .alpha.-methyl styrene, vinyl toluene, methyl methacrylate or mixtures thereof and 0 to 50 parts by weight acrylonitrile on a particulate acrylate rubber with a mean particle diameter (d.sub.50) of from 0.05 to 1.00 .mu.m having a total rubber content of 30 to 80% by weight.

    摘要翻译： （A）5至95重量％的50至100重量份苯乙烯，α-甲基苯乙烯，乙烯基甲苯，甲基丙烯酸甲酯或其混合物和0至50重量份丙烯腈的混合物的接枝产物的成型化合物 平均粒径（d50）为0.10〜0.50μm，总橡胶含量为30〜90重量％的颗粒状硅橡胶，（B）95〜5重量％的 50至100重量份的苯乙烯，α-甲基苯乙烯，乙烯基甲苯，甲基丙烯酸甲酯或其混合物，以及0至50重量份的丙烯腈在平均粒径（d50）为0.05至1.00微米的丙烯酸甲酯橡胶上具有 总橡胶含量为30〜80重量％。

    Process for the preparation of thermoplastic moulding compositions
    10.
    发明授权
    Process for the preparation of thermoplastic moulding compositions 失效
    制备热塑性模塑组合物的方法

    公开(公告)号：US4885337A

    公开(公告)日：1989-12-05

    申请号：US69967

    申请日：1987-07-06

    申请人： Herbert Eichenauer ,  Alfred Pischtschan ,  Karl-Heinz Ott

    发明人： Herbert Eichenauer ,  Alfred Pischtschan ,  Karl-Heinz Ott

    IPC分类号： C08F279/04 ,  C08F2/22 ,  C08F279/00 ,  C08F279/02 ,  C08L25/12 ,  C08L51/00 ,  C08L51/04 ,  C08L55/00 ,  C08L55/02

    CPC分类号： C08L25/12 ,  C08F279/02 ,  C08L51/04

    摘要： Process for the preparation of a thermoplastic moulding composition of 10 to 65% by weight of at least one graft polymer which is obtainable by emulsion polymerization of styrene and acrylonitrile in a weight ratio of 90:10 to 50:50, it being possible for all or some of the styrene to be replaced by .alpha.-methylstyrene or methyl methacrylate, in the presence of at least one rubber base, and the weight ratio of monomers employed to rubber polymer employed being 20:80 to 70:30, and 90 to 35% by weight of a copolymer of styrene and acrylonitrile in a weight ratio of 90:10 to 50:50, it being possible for all or some of the styrene to be replaced by .alpha.-methylstyrene or methyl methacrylate, wherein, to prepare the graft polymer, the grafting monomers and 0.05 to 1.00 part by weight (per 100 parts by weight of grafting monomer) of a mercaptan are added stepwise to the latex of the rubber base over a period of time, the part amount of the monomer added in each time interval .DELTA.t.sub.n+1 being 0.30 to 0.95 times the amount of monomer added in the preceding time interval .DELTA.t.sub.n at least in the first half of the period of time, and the total period of time comprising n time intervals where n=3 to 30, and each time interval .DELTA.t being 5 to 100 minutes long.

    摘要翻译： 用于制备10至65重量％的至少一种接枝聚合物的热塑性模塑组合物的方法，所述接枝聚合物可以通过苯乙烯和丙烯腈的重量比为90:10至50:50的乳液聚合而获得，所有这些都可能 或由至少一个橡胶基团存在下由α-甲基苯乙烯或甲基丙烯酸甲酯代替的一些苯乙烯，并且所用单体与橡胶聚合物的重量比为20:80至70:30和90至35 重量比为90:10至50:50的苯乙烯和丙烯腈的共聚物的重量比，可以用α-甲基苯乙烯或甲基丙烯酸甲酯代替全部或一些苯乙烯，其中制备接枝物 聚合物，接枝单体和0.05至1.00重量份（每100重量份接枝单体）硫醇在一段时间内逐步添加到橡胶基料的胶乳上，每次加入单体的部分量 时间间隔DELTA tn + 1 bei ng至少在上述时间段的前半部分中，在上述时间间隔DELTA tn中添加的单体量的0.30〜0.95倍，n = 3〜30的n个时间间隔的总时间，以及每个时间间隔 长达5到100分钟。