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33 条记录 (耗时 0.018 秒)

    Method for the production of 2,2'-dihydroxybiphenyls
    6.
    发明申请
    Method for the production of 2,2'-dihydroxybiphenyls 审中-公开
    2,2'-二羟基联苯的制备方法

    公开(公告)号：US20070129578A1

    公开(公告)日：2007-06-07

    申请号：US10576694

    申请日：2004-10-21

    申请人： Ralf Widmaier ,  Bettina Muller ,  Marianna Pierobon

    发明人： Ralf Widmaier ,  Bettina Muller ,  Marianna Pierobon

    IPC分类号： C07C39/12

    CPC分类号： C07C37/11 ,  C07C39/15

    摘要： A process for the preparation of a 2,2′-dihydroxybiphenyl by oxidative coupling of two phenyl molecules which have a hydrogen atom in an o-position by means of a peroxide in the presence of water at from 0 to 100° C., wherein the preparation is carried out in the presence of a water-insoluble polymer comprising a) from 0 to less than 100% by weight of a vinyl heterocycle b) from 0 to 10% by weight of a difunctional crosslinking component c) from 0 to less than 100% by weight of styrene or of a monounsaturated styrene derivative or a mixture thereof d) from 0 to 100% by weight of a N-vinylamide of an aliphatic carboxylic acid, or the monomers obtained by hydrolysis of said amido group e) from 0 to 100% by weight of a vinylcarboxylic acid or the esters, amides or salts thereof, or the monomers obtained by hydrolysis of said amido group or ester group, with the proviso that the content of compound d) or e), or d) and e), is more than 0% by weight.

    摘要翻译： 通过在0〜100℃的水存在下，借助于过氧化物，在两个位置上具有氢原子的两个苯基分子的氧化偶合来制备2,2'-二羟基联苯的方法，其中 该制备在水不溶性聚合物的存在下进行，该水不溶性聚合物包含a）0至小于100重量％的乙烯基杂环b）0至10重量％的双官能交联组分c）0至少 100重量％的苯乙烯或单不饱和的苯乙烯衍生物或其混合物; d）0-100重量％的脂族羧酸的N-乙烯基酰胺，或通过所述酰氨基的水解获得的单体e） 0至100重量％的乙烯基羧酸或其酯，酰胺或盐，或通过水解所述酰胺基或酯基获得的单体，条件是化合物d）或e）的含量，或d） 和e）大于0重量％。

    THERMOPLASTIC POLYMER-BASED SOLID DISPERSIONS SUITABLE AS FILTER AIDS
    7.
    发明申请
    THERMOPLASTIC POLYMER-BASED SOLID DISPERSIONS SUITABLE AS FILTER AIDS 审中-公开
    基于热塑性聚合物的固体分散体适合作为过滤器的艾滋病

    公开(公告)号：US20100029854A1

    公开(公告)日：2010-02-04

    申请号：US12515109

    申请日：2007-12-03

    申请人： Klemens Mathauer ,  Marianna Pierobon ,  Simone Schillo ,  Ralf Widmaier

    发明人： Klemens Mathauer ,  Marianna Pierobon ,  Simone Schillo ,  Ralf Widmaier

    IPC分类号： C08L39/06

    CPC分类号： C12H1/0424 ,  B01J20/26 ,  B01J20/261 ,  B01J20/262 ,  B01J2220/445

    摘要： Solid dispersions of thermoplastic polymers and a crosslinked water-insoluble polymer, which solid dispersions are suitable as filter aids, wherein the solid dispersions comprise 20 to 95% by weight of at least one thermoplastic polymer (component A) and 5 to 80% by weight of at least one crosslinked water-insoluble polymer selected from the group consisting of homopolymers of N-vinylformamide, N-vinylcaprolactam, N-vinylpiperidone, N-vinylpyridines, N-vinylimidazoles, styrene monomers, acrylates and methacrylates and also copolymers of basic N-vinyl compounds, styrene monomers, acrylates and methacrylates (component B).

    摘要翻译： 热塑性聚合物和交联的水不溶性聚合物的固体分散体，该固体分散体适合作为助滤剂，其中固体分散体包含20至95重量％的至少一种热塑性聚合物（组分A）和5至80重量％ 的至少一种交联的水不溶性聚合物，其选自N-乙烯基甲酰胺，N-乙烯基己内酰胺，N-乙烯基哌啶酮，N-乙烯基吡啶，N-乙烯基咪唑，苯乙烯单体，丙烯酸酯和甲基丙烯酸酯的均聚物，以及碱式N- 乙烯基化合物，苯乙烯单体，丙烯酸酯和甲基丙烯酸酯（组分B）。