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12 条记录 (耗时 0.016 秒)

    Polyamide moulding compounds with improved processibility
    6.
    发明授权
    Polyamide moulding compounds with improved processibility 失效
    具有改进的可操作性的聚酰胺模塑化合物

    公开(公告)号：US5071896A

    公开(公告)日：1991-12-10

    申请号：US632536

    申请日：1990-12-24

    申请人： Hans-Detlef Heinz ,  Joachim Doring ,  Walter Schmitt ,  Harald Pielartzik

    发明人： Hans-Detlef Heinz ,  Joachim Doring ,  Walter Schmitt ,  Harald Pielartzik

    IPC分类号： C08K5/17 ,  C08K5/20 ,  C08K5/21 ,  C08L77/00

    CPC分类号： C08K5/20 ,  C08K5/21

    摘要： This invention relates to polyamide moulding compounds with improved processibility; to a process for their preparation, to their use for the production of moulded parts, sheet products, fibres and composite materials and to the moulded parts, sheet products, fibres, semi-finished products, composite materials and other articles produced from these moulding compounds. The invention is characterized by the use of small quantities of special amides and/or ureas which impart significantly improved flowability to the moulding compounds.

    摘要翻译： 本发明涉及具有改进的加工性的聚酰胺模塑料; 其制备方法，其用于生产模制件，片材，纤维和复合材料的用途以及由这些模塑料制成的模制件，片材产品，纤维，半成品，复合材料和其它制品 。 本发明的特征在于使用少量特殊酰胺和/或脲，其赋予模塑料显着改善的流动性。

    Process for the preparation of binary .alpha.-methylstyrene/acrylonitrile resins by multi-stage bulk polymerization
    7.
    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。

    Thermoplastic moulding compositions
    9.
    发明授权
    Thermoplastic moulding compositions 失效
    热塑性成型组合物

    公开(公告)号：US4937286A

    公开(公告)日：1990-06-26

    申请号：US107155

    申请日：1987-10-13

    申请人： Frank Wingler ,  Klaus Summermann ,  Ulrich Jansen ,  Joachim Doring ,  Alfred Pischtschan

    发明人： Frank Wingler ,  Klaus Summermann ,  Ulrich Jansen ,  Joachim Doring ,  Alfred Pischtschan

    IPC分类号： C08L25/08 ,  C08L25/16 ,  C08L35/06 ,  C08L51/00 ,  C08L51/04

    CPC分类号： C08L25/16 ,  C08L35/06 ,  C08L51/04

    摘要： Thermoplastic moulding compositions ofA. 90 to 30 parts by weight of a copolymer prepared by solution or bulk polymerization of a.sub.1 30 to 45% by weight of .alpha.-methylstyrene, a.sub.2 26 to 35% by weight of acrylonitrile and a.sub.3 44 to 20% by weight of styrene and/or p-methylstyrene, and with a content of incorporated acrylonitrile of 27-30% by weight,B. 5 to 60 parts by weight of a random copolymer of b.sub.1 18 to 24% by weight of maleic anhydride and b.sub.2 82 to 76% by weight of styrene and/or p-methylstyrene andC. 5 to 40 parts by weight of a graft polymer of 70 to 30% by weight of a mixture of c.sub.1 a vinylaromatic and/or C.sub.1 -C.sub.4 -alkyl and c.sub.2 acrylonitrile, on 30 to 70% by weight of a rubber with a glass transistion temperature of less than -10.degree. C.

    摘要翻译： A.热塑性成型组合物：90〜30重量份通过a1〜30〜45重量％的α-甲基苯乙烯的溶液或本体聚合制备的共聚物，a2-26〜35重量％的丙烯腈和a3〜44〜20重量％ 苯乙烯和/或对甲基苯乙烯的重量，并且所加入的丙烯腈的含量为27-30重量％，B。5至60重量份的b1 18至24重量％的马来酸酐和b2的无规共聚物 82至76重量％的苯乙烯和/或对甲基苯乙烯和C 5-40重量份的接枝聚合物，70至30重量％的c1乙烯基芳族化合物和/或C 1 -C 4烷基的混合物和 丙烯腈，30〜70重量％的玻璃化转变温度低于-10℃的橡胶。