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    • 4. 发明授权
      US4205140A Thermoplastic moulding compositions 失效
    • Thermoplastic moulding compositions
    • 热塑性成型组合物
    • US4205140A
    • 1980-05-27
    • US852628
    • 1977-11-18
    • Lothar Liebig , Frank Wingler , Dieter Margotte , Werner Nouvertne
    • Lothar Liebig , Frank Wingler , Dieter Margotte , Werner Nouvertne
    • C08L25/12 , C08L33/12 , C08L51/00 , C08L51/04 , C08L55/00 , C08L55/02 , C08L69/00 , C08L67/06
    • C08L51/04 , C08L25/12 , C08L33/12 , C08L55/02 , C08L69/00
    • A thermoplastic moulding composition comprising:(1.) 80 to 20 parts by wt. of a thermoplastic polycarbonate based on a dihydroxy diaryl alkane,(2.) 20 to 80 parts by wt. of a graft polymer of2.2. a monomer mixture, polymerized onto2.1. a diene rubber with a glass transition temperature below -30.degree. C., of2.2.1. 95 to 50% by wt. of styrene, methyl methacrylate or a mixture thereof; and2.2.2. 50 to 5% by wt. of acrylonitrile, methacrylonitrile or a mixture thereof, the ratio by wt. of rubber (2.1) to monomer mixture (2.2.) being in the range of from 80:20 and 10:90, and the moulding composition containing from 5 to 35% by wt. of the rubber (2.1.), and(3.) 5 to 75 parts by wt. of a copolymer which is chemically uniform in structure and which comprises:(3.1.) 93 to 50 parts by wt. of styrene, methyl methacrylate or a mixture thereof;(3.2.) 40 to 5 parts by weight of acrylonitrile, methacrylonitrile or a mixture thereof; and(3.3.) 2 to 30 parts by wt. of maleic acid anhydride.
    • 一种热塑性模塑组合物，其包含：（1）80〜20重量份 的基于二羟基二芳基烷烃的热塑性聚碳酸酯，（2.）20至80重量份。 的2.2的接枝聚合物。 单体混合物，聚合到2.1上。 二烯橡胶，玻璃化转变温度低于-30℃，为2.2.1。 95〜50重量％ 的苯乙烯，甲基丙烯酸甲酯或其混合物; 和2.2.2。 50〜5重量％ 丙烯腈，甲基丙烯腈或其混合物，重量比。 的橡胶（2.1）与单体混合物（2.2。）的摩尔比为80:20和10:90，模塑组合物含有5-35重量％ 的橡胶（2.1。）和（3.）5〜75重量份。 的共聚物，其结构化学均匀，并且包括：（3.1。）93至50重量份。 的苯乙烯，甲基丙烯酸甲酯或其混合物; （3.2。）40-5份（重量）丙烯腈，甲基丙烯腈或其混合物; 和（3.3。）2〜30重量份。 的马来酸酐。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 5. 发明授权
      US4181788A Process for the production of thermoplastic molding materials based on vinyl polymers 失效
    • Process for the production of thermoplastic molding materials based on vinyl polymers
    • 用于生产基于乙烯基聚合物的热塑性成型材料的方法
    • US4181788A
    • 1980-01-01
    • US908763
    • 1978-05-23
    • Frank Wingler , Lothar Liebig , Gerd Wassmuth , Martin Ullrich , Manfred Hederich
    • Frank Wingler , Lothar Liebig , Gerd Wassmuth , Martin Ullrich , Manfred Hederich
    • B01J19/24 , C08F2/00 , C08F2/02 , C08F6/00 , C08F6/28 , C08F6/10
    • B01J19/243 , C08F6/28 , B01J2219/00094
    • A process for the production of thermoplastically processible moulding materials based on vinyl polymers of high chemical and molecular uniformity and having residual monomer contents of less than 0.1 mol % which comprises the steps of:(i) mass homogeneous phase polymerization of at least one vinyl monomer in a stirred continuously charged tank reactor to a conversion of from 25 to 60 mol %;(ii) directly concentrating the syrup consisting of residual monomers and vinyl polymer dissolved therein obtained from step (i) in a spiral tube evaporator at a temperature of from 60.degree. to 250.degree. C. and at a pressure of 100 m bar to 35 bar to obtain a solid content of vinyl polymer of from 40 to 90 mol %;(iii) directly charging the concentrate obtained from step (ii) to the inlet zone of a screw evaporator which consists of at least two sequential zones in order to effect further concentration, in which a first zone at a pressure of from 10 to 300 m bar and at a temperature of from 100.degree. to 250.degree. C. concentrates the vinyl polymer to a solid content of from 80 to 99 mol-%, and each subsequent zone at a pressure of 1 to 200 m bar and at a temperature of 150.degree. to 250.degree. C. concentrates the vinyl polymer to a solid content of at least 99.9 %; and(iv) recycling the residual monomers from step (ii) and the residual monomers from said first zone of the screw evaporator to the stirred and charged tank reactor without intermediate cleaning.
    • 一种生产基于乙烯基聚合物的热塑性可加工成型材料的方法，其具有高的化学和分子均匀性并且具有小于0.1摩尔％的残余单体含量，其包括以下步骤：（i）至少一种乙烯基单体的均匀相聚合 在搅拌的连续加入的釜式反应器中以25至60mol％的转化率; （ii）将由步骤（i）获得的残留单体和乙烯基聚合物组成的糖浆直接浓缩在螺旋管式蒸发器中，温度为60-250℃，压力为100巴，至35巴 以获得40至90mol％的乙烯基聚合物的固体含量; （iii）将由步骤（ii）获得的浓缩物直接装入由至少两个顺序区组成的螺杆蒸发器的入口区域，以便进一步浓缩，其中第一区域的压力为10-300μm 并且在100至250℃的温度下将乙烯基聚合物浓缩至固体含量为80至99mol％，并且每个后续区域在1至200mbar的压力和150℃的温度下 DEG至250℃，将乙烯基聚合物浓缩至至少99的固体含量。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 8. 发明授权
      US4141934A Continuous bulk polymerization process 失效
    • Continuous bulk polymerization process
    • 连续本体聚合工艺
    • US4141934A
    • 1979-02-27
    • US668984
    • 1976-03-22
    • Frank Wingler , Adolf Schmidt , Lothar Liebig , Gerd Wassmuth
    • Frank Wingler , Adolf Schmidt , Lothar Liebig , Gerd Wassmuth
    • C08F2/00 , C08F2/02 , C08F212/10 , C08F220/00 , C08F220/42 , C08F257/02
    • C08F212/10
    • Copolymers ofA 22 to 96 mol-% of styrene and/or .alpha.-methyl styrene,B 0 to 78 mol-% of at least one monoolefinically unsaturated monomer containing nitrile groups, andC 0 to 50 mol-% of at least one monoolefinically unsaturated monomer different from A or B are obtained by continuous bulk polymerization in a homogeneous liquid phase, in several process stages, in one or more different temperature ranges and in the presence of one or more initiators with different dissociation times in each temperature range and under pressures of from 1 to 20 bars.In first stage the monomers are copolymerized with backmixing up to a conversion of from 10 - 60 mol-% in an ideally mixed tank reactor and then after optionally additional addition of further parts of monomers copolymerization is continued with backmixing in a completely flooded, self-cleaning polymerization kneader up to a residual monomer content of from 10-50 mol-%.Residual monomers are continuously removed from the copolymer up to a content of less than 0.5% by weight based on the copolymer.The process according to the invention provides uniform, compatible, homogeneous products which are free from gel-like particles and which combine improved transparency with greater dimensional stability under heat and better mechanical properties together with improved processibility.
    • A 22至96摩尔％的苯乙烯和/或α-甲基苯乙烯的共聚物，B 0至78摩尔％的至少一种含有腈基的单烯属不饱和单体和C 0至50摩尔％的至少一种单烯烃 不同于A或B的不饱和单体通过在均相液相中，在几个工艺阶段中，在一个或多个不同温度范围内并且在一个或多个在每个温度范围和下面具有不同解离时间的引发剂的存在下连续本体聚合获得 压力为1至20巴。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
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