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9 条记录 (耗时 0.021 秒)

    Method for producing polycarbonate
    2.
    发明授权
    Method for producing polycarbonate 失效
    聚碳酸酯的制造方法

    公开(公告)号：US06262219B1

    公开(公告)日：2001-07-17

    申请号：US09446852

    申请日：1999-12-28

    申请人： Annett König ,  Uwe Hucks ,  Claus-Ludolf Schultz ,  Günther Jeromin

    发明人： Annett König ,  Uwe Hucks ,  Claus-Ludolf Schultz ,  Günther Jeromin

    IPC分类号： C08G6430

    CPC分类号： C08G64/307

    摘要： The present invention relates to a transesterification method for producing solvent-free polycarbonate, using N-alkyl-substituted piperidines or N-alkyl-substituted morpholines comprising C2-C12 N-alkyl substituents, preferably C2-C8 N-alkyl substituents, most preferably C2-C5 N-alkyl substituents, as catalysts.

    摘要翻译： 本发明涉及使用N-烷基取代的哌啶或包含C 2 -C 12 N-烷基取代基的N-烷基取代的吗啉，优选C 2 -C 8 N-烷基取代基，最优选C 2 -C 5 N-烷基取代基，作为催化剂。

    Method for producing branched polycarbonates
    3.
    发明授权
    Method for producing branched polycarbonates 失效
    支链聚碳酸酯的制备方法

    公开(公告)号：US06307006B1

    公开(公告)日：2001-10-23

    申请号：US09445849

    申请日：1999-12-14

    申请人： Annett König ,  Lothar Bunzel ,  Uwe Hucks

    发明人： Annett König ,  Lothar Bunzel ,  Uwe Hucks

    IPC分类号： C08G6400

    CPC分类号： C08G64/1616 ,  C08G64/30

    摘要： A process of producing branched polycarbonates by melt transesterification from at least one diphenol, diaryl carbonate and a branching agent, and in the optional presence of a catalyst is disclosed. The process which is carried out at temperatures between 80 to 400° C. and at pressures between 1 and 0.01 mbar, entails using as branching agent at least one member selected from the group consisting of (i) a specifically structured aliphatic alcohol and (ii) the ether of (i) which is formed by self-condensation.

    摘要翻译： 公开了通过熔融酯交换从至少一种二酚，碳酸二芳酯和支化剂生产支化聚碳酸酯的方法，以及任选的催化剂存在下的方法。 在80至400℃的温度和1至0.01毫巴的压力下进行的方法需要使用至少一种选自（i）特定结构的脂族醇和（ii） ）通过自缩合形成的（i）的醚。

    Highly branched polycondensates
    7.
    发明授权
    Highly branched polycondensates 失效
    高分支缩聚物

    公开(公告)号：US06528612B1

    公开(公告)日：2003-03-04

    申请号：US09937190

    申请日：2001-09-21

    申请人： Axel Brenner ,  Annett König

    发明人： Axel Brenner ,  Annett König

    IPC分类号： C08G6300

    CPC分类号： C08G83/005 ,  C08G63/20 ,  C08G64/14 ,  C08G69/26 ,  C08G69/44

    摘要： A highly branched polycondensate is described. The polycondensate is prepared by polycondensating (a) monomers capable of polycondensation in the presence of (b) branching agents, wherein the branching agents are selected from polymers, oligomers consisting of 2 to 100 monomer units and dendritic polymers. The branching agents contain residues of monomers represented by the general formulas, A—R—Bx or Ax—R—B wherein A represents a —C(O)X group, X being hydroxyl, halogen, alkoxy or aralkoxy, each having 1 to 30 carbon atoms, B represents one of (i) an —OY group, Y being hydrogen, trialkyl silyl, alkyl or acyl, each having 1 to 30 carbon atoms, and (ii) an amino group, an ammonium halide or an alkyl carbamate having 1 to 8 carbon atoms, R is an organic aromatic, aliphatic-aromatic or aliphatic radical containing 1 to 25 carbon atoms, and x≧2. Also described are molded articles prepared from the highly branched polycondensate of the present invention.

    摘要翻译： 描述了高度支化的缩聚物。 缩聚物（a）在（b）支化剂存在下缩聚（a）能够缩聚的单体，其中支化剂选自聚合物，由2至100个单体单元和树枝状聚合物组成的低聚物。 支化剂含有由通式表示的单体的残基，其中A表示-C（O）X基，X为羟基，卤素，烷氧基或芳烷氧基，各自具有1至30个碳原子，B表示（i） -OY基，Y是氢，三烷基甲硅烷基，烷基或酰基，各自具有1至30个碳原子，和（ii）氨基，卤化铵或具有1至8个碳原子的氨基甲酸烷基酯，R是有机芳族 ，含有1至25个碳原子的脂族 - 芳族或脂族基团，x≥2。还描述了由本发明的高度支化缩聚物制备的模制品。

    Method for producing phosphonium phenolates
    8.
    发明授权
    Method for producing phosphonium phenolates 有权
    苯酚酚盐生产方法

    公开(公告)号：US06476273B2

    公开(公告)日：2002-11-05

    申请号：US09446475

    申请日：1999-12-21

    申请人： Annett König ,  Lothar Bunzel ,  Uwe Hucks

    发明人： Annett König ,  Lothar Bunzel ,  Uwe Hucks

    IPC分类号： C07F954

    CPC分类号： C07F9/54 ,  C07C37/00 ,  C07C39/04

    摘要： A process for preparing phosphonium phenolate is disclosed. The process entails a reaction of phosphonium halide with phenol in an aqueous alkaline solution at a temperature of 0 to 55° C. The molar ratio of phenol to phosphonium halide is between 2:1 to 10:1 and the pH of the solution is 9.5 to 11. An optional embodiment entails carrying out the reaction in the further presence of alcohol.

    摘要翻译： 公开了一种制备酚酞的方法。 该方法需要在0至55℃的温度下在碱性水溶液中将卤化鏻与酚反应。苯酚与卤化鏻的摩尔比为2:1至10:1，溶液的pH为9.5 任选的实施方案需要在醇的进一步存在下进行反应。