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172 条记录 (耗时 0.031 秒)

    Thermoplastic compositions in powder form
    27.
    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
    28.
    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。

    Process for the preparation of carbonic acid aryl esters of polyester-diols lengthened via carbonate groups and their use for the preparation of polyester-diol bis-diphenol carbonates and polyester/polycarbonates
    30.
    发明授权
    Process for the preparation of carbonic acid aryl esters of polyester-diols lengthened via carbonate groups and their use for the preparation of polyester-diol bis-diphenol carbonates and polyester/polycarbonates 失效
    通过碳酸酯基延长的聚酯二醇的碳酸芳酯的制备方法及其用于制备聚酯 - 二醇双二酚碳酸酯和聚酯/聚碳酸酯的用途

    公开(公告)号：US4297455A

    公开(公告)日：1981-10-27

    申请号：US910986

    申请日：1978-05-30

    申请人： Christian Lindner ,  Carlhans Suling ,  Herbert Bartl ,  Manfred Schreckenberg ,  Dieter Freitag ,  Klaus Konig

    发明人： Christian Lindner ,  Carlhans Suling ,  Herbert Bartl ,  Manfred Schreckenberg ,  Dieter Freitag ,  Klaus Konig

    IPC分类号： C08G63/64 ,  C08G63/00 ,  C08G63/76

    CPC分类号： C08G63/64

    摘要： The present invention relates to a process for the preparation of bis-carbonic acid aryl esters of polyester-diols, lengthened via --OCOO-- groups, characterized in that polyester-diols with molecular weights Mn (number-average) of over 250, preferably over 600, are heated with carbonic acid bis-aryl esters at temperatures between about 100.degree. C. and 200.degree. C., preferably between about 110.degree. C. and 180.degree. C., in vacuo below about 35 mm Hg, preferably between about 25 and 1 mm Hg, in the presence of catalysts, less than one mol of carbonic acid bis-aryl ester being employed per OH group of the polyester-diol and the hydroxyaryl compounds formed being distilled off.The invention further relates to the bis-carbonic acid aryl esters of polyester-diols lengthened via --OCOO-- groups obtained according to the instant invention and their use for the preparation of polyester diol bis-diphenol carbonates, lengthened via carbonate groups, characterized in that polyester-diol bis-aryl carbonates are reacted with a diphenol at a temperature of from about 100.degree. to about 200.degree. C. in vacuo below about 35 mm Hg in the presence of a catalyst, wherein more than 1 mol of diphenol is employed per mol of carbonic acid aryl ester groups of the polyester-diol bis-aryl carbonate, lengthened via carbonate groups, and the resulting hydroxyaryl compound is distilled off.The invention finally relates to the polyester-diol bis-diphenol carbonates, lengthened via carbonate groups obtained according to the instant invention and their use for the preparation of polyester/polycarbonates and the polycarbonate/polyesters so prepared.

    摘要翻译： 本发明涉及通过-OCOO-基团延长的聚酯二醇的双碳酸芳基酯的制备方法，其特征在于分子量Mn（数均分子）超过250的聚酯二醇优选超过 600，在约100℃至200℃之间，优选约110℃至180℃之间的温度下，用碳酸双芳基酯加热，真空度低于约35mmHg，优选约25mm 和1mm Hg，在催化剂的存在下，每聚酯二醇的OH基和所形成的羟基芳基化合物使用少于1摩尔的碳酸双芳基酯。 本发明还涉及通过根据本发明获得的-OCOO-基团延长的聚酯二醇的双碳酸芳基酯及其用于制备通过碳酸酯基团延长的聚酯二醇双 - 二酚酚酸酯的用途，其特征在于 在催化剂存在下，聚酯 - 二醇双芳基碳酸酯与二酚在约100至约200℃的温度下在真空下在约35mm Hg下真空反应，其中每次使用多于1mol的二酚 将通过碳酸酯基延长的聚酯 - 二醇双芳基碳酸酯的碳酸芳基酯基和所得羟基芳基化合物蒸馏出。 本发明最终涉及通过根据本发明获得的碳酸酯基团延长的聚酯 - 二醇双 - 二酚碳酸酯及其制备聚酯/聚碳酸酯和如此制备的聚碳酸酯/聚酯的用途。