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172 条记录 (耗时 0.027 秒)

    Process for recovering thermoplastic polymers from dispersion
    1.
    发明授权
    Process for recovering thermoplastic polymers from dispersion 失效
    从分散体中回收热塑性聚合物的方法

    公开(公告)号：US4960864A

    公开(公告)日：1990-10-02

    申请号：US358954

    申请日：1989-05-30

    申请人： Christian Lindner ,  Claus Wulff ,  Karl-Heinz Ott

    发明人： Christian Lindner ,  Claus Wulff ,  Karl-Heinz Ott

    IPC分类号： C08J11/00 ,  C08C1/15 ,  C08F6/16 ,  C08F6/22 ,  C08J11/06

    CPC分类号： C08F6/16

    摘要： Recovery of thermoplastic polymer solids from dispersions thereof by coagulation and subsequent washing of the solids is improved by contacting the polymer in the coagulation stage or the washing stage or in both stages with at least one tricarboxylic acid of the formula ##STR1## wherein X is a single covalent bond, --CH.sub.2 -- or --C.sub.2 H.sub.4 -- and R is H, --OH or ##STR2##

    摘要翻译： 通过凝结和随后的固体洗涤从其分散体中回收热塑性聚合物固体，通过使聚合物在凝固阶段或洗涤阶段或两个阶段中与至少一种下式的三羧酸接触，其中X为 单共价键，-CH 2 - 或-C 2 H 4 - ，并且R为H，-OH或

    Mixtures of thermoplastic polymers in powder form
    2.
    发明授权
    Mixtures of thermoplastic polymers in powder form 失效
    粉末形式的热塑性聚合物的混合物

    公开(公告)号：US5112910A

    公开(公告)日：1992-05-12

    申请号：US743678

    申请日：1991-08-12

    申请人： Karl-Erwin Piejko ,  Christian Lindner ,  Ralph Ostarek ,  Hans-Eberhard Braese ,  Karl-Heinz Ott

    发明人： Karl-Erwin Piejko ,  Christian Lindner ,  Ralph Ostarek ,  Hans-Eberhard Braese ,  Karl-Heinz Ott

    IPC分类号： C08J3/00 ,  C08L21/00 ,  C08L25/12 ,  C08L33/06 ,  C08L33/12 ,  C08L51/04

    CPC分类号： C08L33/06 ,  C08J3/005 ,  C08L21/00 ,  C08L25/12 ,  C08L33/12 ,  C08L51/04

    摘要： Process for the preparation of mixtures of thermoplastic polymers in powder form from aqueous emulsions ofa) particulate, partly crosslinked rubber-like copolymers of a C.sub.2 -C.sub.8 -alkyl acrylate and/or butadiene with (based on the copolymer) up to 40 wt. % acrylonitrile, styrene or C.sub.1 -C.sub.4 -alkyl methacrylate,b) a thermoplastic resin, and if appropriatec) a rubber-rich graft polymer of styrene, .alpha.-methylstyrene, acrylonitrile, methyl methacrylate and/or alkyl acrylate on a diene or alkyl acrylate rubber having a rubber content of 50 to 95 wt. %,wherein aqueous emulsions of a) and b) and if appropriate c) having polymer contents of 15 to 50 wt. % are mixed with a coagulate solution simultaneously, but in separate streams, continuously or semi-continuously at 20.degree. to 100.degree. C., the polymers a) and b) and if appropriate c) being coagulated, the streams are combined and the polymer mixture is then separated off.

    摘要翻译： 制备粉末形式的热塑性聚合物的混合物的方法，该方法由以下混合物的水性乳液制备：a）丙烯酸C 2 -C 8烷基酯和/或丁二烯与（基于共聚物）的至少40重量％的颗粒部分交联的橡胶状共聚物。 丙烯腈，苯乙烯或甲基丙烯酸C 1 -C 4烷基酯，b）热塑性树脂，如果合适，c）在二烯或烷基上的苯乙烯，α-甲基苯乙烯，丙烯腈，甲基丙烯酸甲酯和/或丙烯酸烷基酯的富含橡胶的接枝聚合物 丙烯酸酯橡胶，其橡胶含量为50〜95重量％ ％，其中a）和b）和如果合适的水性乳液c）具有15至50重量％的聚合物含量。 ％与凝固溶液同时混合，但在单独的流中，在20℃至100℃连续或半连续，聚合物a）和b），如果合适，c）凝结，将流合并，聚合物 混合物然后分离出来。

    Block copolymers containing polysiloxane segments
    4.
    发明授权
    Block copolymers containing polysiloxane segments 失效
    含有聚硅氧烷链段的嵌段共聚物

    公开(公告)号：US4968750A

    公开(公告)日：1990-11-06

    申请号：US427935

    申请日：1989-10-25

    申请人： Herbert Eichenauer ,  Christian Lindner ,  Karl-Heinz Ott

    发明人： Herbert Eichenauer ,  Christian Lindner ,  Karl-Heinz Ott

    IPC分类号： C08G77/442

    CPC分类号： C08G77/442

    摘要： Block copolymers composed of recurrent structural units belonging to the series comprising polysiloxanes and recurring structural units belonging to the series comprising homopolymers, copolymers or terpolymers of vinyl-aromatic compounds and acrylic monomers of mixtures thereof.

    摘要翻译： 由属于包含聚硅氧烷的系列的复发结构单元和属于该系列的重复结构单元组成的嵌段共聚物包括乙烯基芳族化合物的均聚物，共聚物或三元共聚物和其混合物的丙烯酸单体。

    Thermoplastic compositions in powder form
    8.
    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
    9.
    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。