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156 条记录 (耗时 0.029 秒)

    Block copolymers containing polysiloxane segments
    82.
    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。

    Process for the preparation of thermoplastic moulding compositions
    84.
    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。

    Sulphur-containing graft products
    85.
    发明授权
    Sulphur-containing graft products 失效
    含硫移植产品

    公开(公告)号：US4772668A

    公开(公告)日：1988-09-20

    申请号：US827390

    申请日：1986-02-10

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

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

    IPC分类号： C08L51/00 ,  C08F2/38 ,  C08F279/00 ,  C08F279/02 ,  C08F291/02 ,  C08L7/00 ,  C08L21/00 ,  C08L33/00 ,  C08L33/02 ,  C08L51/02 ,  C08L51/04 ,  C08L55/00 ,  C08L55/02

    CPC分类号： C08F279/02 ,  C08F291/02

    摘要： Sulphur-containing elastic-thermoplastic graft products of styrene, .alpha.-methyl styrene, p-methyl styrene, vinyl toluene, acrylonitrile or methyl methacrylate or mixtures thereof on a particle-like rubber with an average particle diameter (d.sub.50) of from 0.05 to 20.0 .mu.m and a glass temperature .ltoreq.10.degree. C. with a total rubber content of from 1 to 80% by weight, whereby the graft products have a sulphur content of from 1.15 to 3.95% by weight and the thermoplast proportion of the polymerized monomers on the particle-like rubber has a limiting viscosity of from 2 to 15 ml/g (measured in dimethyl formamide at 25.degree. C.) and in which at least 90% by weight of the incorporated sulphur is present as a constituent of terminal C1-18-thioalkyl groups.

    摘要翻译： 苯乙烯，α-甲基苯乙烯，对甲基苯乙烯，乙烯基甲苯，丙烯腈或甲基丙烯酸甲酯或其混合物在平均粒径（d50）为0.05至20.0的颗粒状橡胶上的含硫弹性 - 热塑性接枝产物 微米，玻璃温度为10℃，总橡胶含量为1〜80重量％，由此接枝产物的硫含量为1.15〜3.95重量％，聚合物的热塑性比例 颗粒状橡胶上的单体的特性粘度为2至15ml / g（在25℃的二甲基甲酰胺中测量），并且其中至少90重量％的引入的硫作为末端的成分存在 C 1-18 - 硫烷基。

    Thermoplastic compositions in powder form
    89.
    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
    90.
    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。