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156 条记录 (耗时 0.03 秒)

    Thermoplastic compositions in powder form
    73.
    发明授权
    Thermoplastic compositions in powder form 失效
    粉末形式的热塑性组合物

    公开(公告)号：US4522959A

    公开(公告)日：1985-06-11

    申请号：US594284

    申请日：1984-03-28

    申请人： Christian Lindner ,  Karl-Heinz Ott ,  Hans-Eberhard Braese

    发明人： Christian Lindner ,  Karl-Heinz Ott ,  Hans-Eberhard Braese

    IPC分类号： C08L25/00 ,  C08J3/00 ,  C08J3/16 ,  C08L7/00 ,  C08L21/00 ,  C08L25/12 ,  C08L33/00 ,  C08L33/02 ,  C08L33/12 ,  C08L51/00 ,  C08L51/02 ,  C09D5/46

    CPC分类号： C08L25/12 ,  C08J3/005 ,  C08L33/12 ,  C08L21/00

    摘要： A process for the production of a pulverulent mixture consisting of(A) from 60 to 99 parts by weight of a brittle copolymer consisting of acrylonitrile and styrene, .alpha.-methylstyrene, methyl methacrylate or mixtures thereof, and(B) from 1 to 40 parts by weight of a flexible rubber-elastic polymer,by coagulating, in a first stage, a latex of (A) or a mixture of a latex of (A) and a part of a latex of (B), adding, in a second stage, the latex of (B) or the remaining part of the latex of (B), so that the desired quantity ratio of (A) to (B) is attained, and, in a third stage, separating the precipitated mixture of (A) and (B) from the aqueous phase, and drying it.

    摘要翻译： 一种由（A）60至99重量份由丙烯腈和苯乙烯组成的脆性共聚物，α-甲基苯乙烯，甲基丙烯酸甲酯或其混合物的粉末混合物的制备方法，（B）1至40份 （A）的胶乳或（A）的胶乳与（B）的一部分胶乳的混合物在第一阶段中凝固，在第二阶段中， （B）的胶乳或（B）的胶乳的剩余部分，从而达到（A）〜（B）的所需量比，在第三阶段，将沉淀的（ A）和（B）从水相中干燥。

    Rubber powders
    74.
    发明授权
    Rubber powders 失效
    橡胶粉

    公开(公告)号：US4421901A

    公开(公告)日：1983-12-20

    申请号：US337010

    申请日：1982-01-04

    申请人： Christian Lindner ,  Karl-Heinz Ott

    发明人： Christian Lindner ,  Karl-Heinz Ott

    IPC分类号： C08F2/18 ,  C08F285/00 ,  C08F265/04

    CPC分类号： C08F285/00 ,  Y10S525/902

    摘要： Pourable rubber powders comprising particles having an average diameter of from 0.01 to 10 mm which contain, polymerized thereon, a shell of the polymer or copolymer of one or more vinyl monomers in a quantity of from 2 to 20% by weight, based on the rubber, and the core rubber is a latex polymer, the latex particles of which are composed of a core polymer and a sheath polymer, the core and sheath differing in their chemical composition and at least the sheath polymer being a diene or acrylate rubber having glass transition temperatures of below 0.degree. C., and a process for the preparation of such rubber powders, wherein a latex of an approximate rubber is completely broken with the formation of an aqueous suspension of the rubber; from 2 to 20% by weight, based on the rubber, of one or more vinyl monomers which form polymers having glass transition temperatures of above 25.degree. C. are then introduced into the suspension; and the monomer(s) is/are polymerized, optionally after adding a radical-forming catalyst.

    摘要翻译： 包含平均直径为0.01至10mm的颗粒的可浇注橡胶粉末，其含有基于橡胶的2-20重量％的聚合物或一种或多种乙烯基单体的共聚物的聚合物的壳 ，核心橡胶是胶乳聚合物，其胶乳颗粒由芯聚合物和鞘聚合物组成，芯和鞘的化学组成不同，并且至少鞘聚合物是具有玻璃化转变的二烯或丙烯酸酯橡胶 温度低于0℃，以及制备这种橡胶粉末的方法，其中近似橡胶的胶乳完全破碎，形成橡胶的水性悬浮液; 然后将2至20重量％的基于橡胶的一种或多种形成玻璃化转变温度高于25℃的聚合物的乙烯基单体引入悬浮液中; 并且任选地在添加自由基形成催化剂之后使单体聚合。

    High-impact polybutylene terephthalate
    76.
    发明授权
    High-impact polybutylene terephthalate 失效
    高效聚对苯二甲酸丁二醇酯

    公开(公告)号：US4292233A

    公开(公告)日：1981-09-29

    申请号：US165259

    申请日：1980-07-02

    申请人： Rudolf Binsack ,  Dieter Rempel ,  Gert Humme ,  Karl-Heinz Ott

    发明人： Rudolf Binsack ,  Dieter Rempel ,  Gert Humme ,  Karl-Heinz Ott

    IPC分类号： C08F279/00 ,  C08L7/00 ,  C08L21/00 ,  C08L51/00 ,  C08L51/02 ,  C08L55/00 ,  C08L67/00 ,  C08L67/02

    CPC分类号： C08L67/02

    摘要： The toughness of polybutylene terephthalate can be considerably improved by the addition of an ABS-graft copolymer having a relatively high content of graft base and a closely defined particle size; the typical properties of polybutylene terephthalate, such as its high dimensional heat stability, hardness and rigidity, are not substantially reduced. The products show an excellent multiaxial impact strength.

    摘要翻译： 通过添加具有相对高的接枝基质含量和紧密限定的粒度的ABS接枝共聚物，可显着提高聚对苯二甲酸丁二醇酯的韧性; 聚对苯二甲酸丁二醇酯的典型性能，如其高尺寸热稳定性，硬度和刚度，并不显着降低。 该产品具有优异的多轴冲击强度。

    ABS moulding compositions
    79.
    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##