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39 条记录 (耗时 0.014 秒)

    Continuous removal of the catalyst from polyphenylene ethers
    8.
    发明授权
    Continuous removal of the catalyst from polyphenylene ethers 失效
    从聚苯醚连续除去催化剂

    公开(公告)号：US4654418A

    公开(公告)日：1987-03-31

    申请号：US627984

    申请日：1984-07-05

    申请人： Rosemarie Berger ,  Hermann Dreher ,  Juergen Hambrecht ,  Eduard Heil ,  Rudi W. Reffert ,  Johann Swoboda ,  Adolf Echte ,  Peter Siebel

    发明人： Rosemarie Berger ,  Hermann Dreher ,  Juergen Hambrecht ,  Eduard Heil ,  Rudi W. Reffert ,  Johann Swoboda ,  Adolf Echte ,  Peter Siebel

    IPC分类号： C08G65/46 ,  C08G65/42

    CPC分类号： C08G65/46

    摘要： The catalyst is removed in the preparation of high molecular weight polyphenylene ethers from monohydric phenols, which are alkyl-substituted at the two ortho-positions but not at the para-position and may or may not be alkyl-substituted at the meta-position, by an oxidative coupling reaction with oxygen at from 15.degree. to 50.degree. C. in the presence of a catalyst complex obtained from a copper salt and an organic amine, in the presence of from 1 to 20 parts by weight of a solvent per part by weight of the monomeric phenol, and in the presence or absence of an activator, and removal of the metal component of the catalyst from the polyphenylene ether solution with a complex-forming or chelate-forming compound in aqueous solution, in the presence or absence of reducing and stabilizing substances and assistants for accelerating the interphase reactions and for phase separation, by a method in which the continuous removal of the copper catalyst is carried out in one or more mixer-settler stages at a phase volume ratio of the organic phase to the aqueous phase of from 1:0.1 to 1:1.0, preferably from 1:0.4 to 1:0.6.

    摘要翻译： 在从一元酚制备高分子量聚苯醚时除去催化剂，该二元酚在两个邻位进行烷基取代，而不是在对位，在间位可以是或不是烷基取代的， 在由铜盐和有机胺获得的催化剂配合物的存在下，在15〜50℃下，与氧气进行氧化偶合反应，每份由1〜20份重量的溶剂 单体苯酚的重量，并且在存在或不存在活化剂的情况下，在存在或不存在复合物形成或螯合形成化合物的情况下，在聚苯醚溶液中除去催化剂的金属组分 减少和稳定物质和辅助剂，用于加速相间反应和相分离，方法是连续除去铜催化剂的方法是在一个或多个混合沉淀器 以有机相与水相的相体积比为1:0.1至1:1.0，优选1:0.4至1:0.6。

    Thermoplastic molding compositions containing polycarbonate and an acrylate graft copolymer
    9.
    发明授权
    Thermoplastic molding compositions containing polycarbonate and an acrylate graft copolymer 失效
    含有聚碳酸酯和丙烯酸酯接枝共聚物的热塑性成型组合物

    公开(公告)号：US4605699A

    公开(公告)日：1986-08-12

    申请号：US722155

    申请日：1985-04-11

    申请人： Konrad Mitulla ,  Juergen Hambrecht ,  Adolf Echte ,  Johann Swoboda ,  Peter Siebel ,  Josef Schwaab ,  Herbert Frank

    发明人： Konrad Mitulla ,  Juergen Hambrecht ,  Adolf Echte ,  Johann Swoboda ,  Peter Siebel ,  Josef Schwaab ,  Herbert Frank

    IPC分类号： C08L51/00 ,  C08L69/00

    CPC分类号： C08L51/003 ,  C08L69/00 ,  Y10S525/902

    摘要： A thermoplastic molding material consists of from 10 to 90 parts by weight of a polycarbonate A and from 90 to 10 parts by weight of a graft copolymer B having a mean particle size of from 200 to 700 nm (d.sub.50 value of the integral mass distribution). The graft polymer B is formed from an elastomer (rubber) (b.sub.1), which accounts for from 10 to 80% by weight, and a grafted shell (b.sub.2), which accounts for from 90 to 20% by weight, the percentages in each case being based on (B).The elastomer (b.sub.1) is composed of from 50 to 99.9% by weight of an alkyl acrylate, where alkyl is of 1 to 8 carbon atoms, and from 0.1 to 5% by weight of a copolymerizable polyfunctional crosslinking monomer.The grafted shell (b.sub.2) is produced in three stages and contains, as graft monomers,(b.sub.2 a.sub.1) from 5 to 40% by weight of a monoethylenically unsaturated aromatic hydrocarbon of not more than 12 carbon atoms, in the first stage,(b.sub.2 a.sub.2) from 15 to 50% by weight of a mixture of a monoethylenically unsaturated aromatic hydrocarbon of not more than 12 carbon atoms and a copolymerizable ethylenically unsaturated monomer, in a weight ratio of from 90:10 to 60:40, in the second stage, and(b.sub.2 a.sub.3) from 10 to 85% by weight of an alkyl (meth)acrylate in the third stage, the percentages in each case being based on (b.sub.2).

    摘要翻译： 热塑性成型材料由10〜90重量份的聚碳酸酯A和90〜10重量份的平均粒径为200〜700nm的接枝共聚物B（整体质量分布的d50）组成， 。 接枝聚合物B由占总重量的10〜80重量％的弹性体（橡胶）（b1）和接枝壳（b2）的90〜20重量％构成。 情况基于（B）。 弹性体（b1）由50〜99.9重量％的丙烯酸烷基酯（其中烷基为1〜8个碳原子）和0.1〜5重量％的可共聚的多官能交联单体组成。 接枝壳（b2）分三个阶段制成，在第一阶段，（b2a2）含有5-40重量％的不大于12个碳原子的单烯属不饱和芳族烃作为接枝单体，（b2a1） 15重量％至50重量％的不超过12个碳原子的单烯属不饱和芳族烃和可共聚烯属不饱和单体的混合物，其重量比为90:10至60:40，第二阶段为 （b2a3）在第三阶段为10〜85重量％的（甲基）丙烯酸烷基酯，其各自的百分比基于（b2）。