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187 条记录 (耗时 0.032 秒)

    Process for reducing the amount of fluorinated surfactant in aqueous fluoropolymer dispersions
    111.
    发明授权
    Process for reducing the amount of fluorinated surfactant in aqueous fluoropolymer dispersions 失效
    用于降低含氟聚合物水分散体中氟化表面活性剂的量的方法

    公开(公告)号：US06825250B2

    公开(公告)日：2004-11-30

    申请号：US10429387

    申请日：2003-05-05

    申请人： Rebekka Epsch ,  Klaus Hintzer ,  Gernot Löhr ,  Werner Schwertfeger

    发明人： Rebekka Epsch ,  Klaus Hintzer ,  Gernot Löhr ,  Werner Schwertfeger

    IPC分类号： C08L100

    CPC分类号： C08F6/16 ,  C08F6/20 ,  C08L27/12

    摘要： The present invention provides a process of reducing the amount of fluorinated emulsifier in an aqueous fluoropolymer dispersion by contacting the aqueous fluoropolymer dispersion with an anion exchange resin in a non-fixed resin bed, the process comprising: (a) mixing the aqueous fluoropolymer dispersion with an effective amount of a surfactant so as to stabilize the fluoropolymer dispersion while being contacted with the anion exchange resin; (b) contacting the aqueous fluoropolyrner dispersion with an anion exchange resin by agitating the aqueous fluoropolymer dispersion with an effective amount of anion exchange resin for a time of less than 4 hours to reduce the amount of fluorinated emulsifier in the aqueous fluoropolymer dispersion to a desired level; and (c) separating the anion exchange resin from the aqueous fluoropolymer dispersion.

    摘要翻译： 本发明提供一种通过使含氟聚合物含水分散体与阴离子交换树脂在非固定树脂床中接触来降低含氟聚合物水分散体含量的方法，该方法包括：（a）将含氟聚合物水分散体与 有效量的表面活性剂，以便在与阴离子交换树脂接触的同时稳定含氟聚合物分散体;（b）通过用有效量的阴离子交换树脂搅拌含氟聚合物水分散体使其与阴离子交换树脂接触， 少于4小时的时间将含氟聚合物水分散体中的氟化乳化剂的量减少到所需水平; 和（c）从含氟聚合物含水分散体中分离阴离子交换树脂。

    Fluoropolymers having pendant imidate structures
    112.
    发明授权
    Fluoropolymers having pendant imidate structures 失效
    含有亚氨酸酯侧链结构的含氟聚合物

    公开(公告)号：US06803425B2

    公开(公告)日：2004-10-12

    申请号：US10122487

    申请日：2002-04-11

    申请人： Klaus Hintzer ,  Werner M. A. Grootaert ,  Robert E. Kolb ,  Franz Maerz ,  Werner Schwertfeger

    发明人： Klaus Hintzer ,  Werner M. A. Grootaert ,  Robert E. Kolb ,  Franz Maerz ,  Werner Schwertfeger

    IPC分类号： C08F814

    CPC分类号： C08F16/24 ,  C08F214/18 ,  C08F214/262 ,  C08J5/18

    摘要： A composition comprising (a) a fluoropolymer having pendant imidate groups, which imidate groups have the formula: —C═NH(OR) wherein R is a C1-C10 aliphatic group which aliphatic group may have F or Cl substituents; and optionally, (b) a perfluorovinyl ether of the general formula: CF2═CFO(R′fO)a(R″fO)bRf wherein R′f and R″f are the same or are different C1-C6 linear or branched perfluoroalkylene groups; a and b are, independently, 0 or an integer from 1 to 10; and Rf is a C1-C8 perfluoroalkyl group or a C1-C15 perfluoroalkoxy group. Also provided are a method of making a fluoropolymer composition and curable and cured articles comprising a fluoropolymer composition.

    摘要翻译： 一种组合物，其包含（a）具有亚酰氨基侧基的含氟聚合物，所述亚胺基具有下式：-C = NH（OR），其中R是C1-C10脂族基团，该脂族基团可以具有F或Cl取代基; 和（b）通式CF 2 = CFO（R'fO）a（R“f O）b R f的全氟乙烯基醚，其中R'f和R''f相同或不同，C1-C6直链或 支链全氟亚烷基; a和b独立地为0或1〜10的整数; Rf为C1-C8全氟烷基或C1-C15全氟烷氧基。 还提供了制备包含含氟聚合物组合物的含氟聚合物组合物和可固化和固化的制品的方法。

    Process of preparing halogenated esters
    114.
    发明授权
    Process of preparing halogenated esters 失效
    制备卤代酯的方法

    公开(公告)号：US06703520B2

    公开(公告)日：2004-03-09

    申请号：US10117241

    申请日：2002-04-05

    申请人： Klaus Hintzer ,  Egon Obermaier ,  Werner Schwertfeger

    发明人： Klaus Hintzer ,  Egon Obermaier ,  Werner Schwertfeger

    IPC分类号： C07C20500

    CPC分类号： C07C67/00 ,  Y02P20/582 ,  C07C69/708

    摘要： The present invention provides a process for preparing a desired halogenated ester, which process comprises the steps of: (a) contacting (A) a substantially organic solvent free liquid mixture of (i) an alkanolate of the formula M—O—Z, wherein M is an alkali or alkaline earth metal, and Z is a linear, branched or cyclic alkyl group of 1 to 10 carbon atoms and (ii) a diester with (B) a halogenated ethylenically unsaturated olefin at a temperature of not more than 40° C. and with a mol ratio of halogenated ethylenically unsaturated olefin to alkanolate of not more than 1.1; (b) contacting an acid with a thus obtained reaction mixture thereby obtaining a mixture comprising the desired halogenated ester; and (c) recovering the halogenated ester from said reaction mixture. In step (a) of the process, the mixture of the alkanolate and diester is contacted with the halogenated ethylenically unsaturated olefin under conditions of agitation sufficient such that the weight ratio of halogenated ester to halogenated ketone as a byproduct obtained after step (b) is at least 10:1.

    摘要翻译： 本发明提供了一种制备所需卤代酯的方法，该方法包括以下步骤：（A）使（A）基本上无机溶剂的液体混合物与（ⅰ）式MOZ的链烷醇酯接触，其中M为碱 或碱土金属，Z为1〜10个碳原子的直链，支链或环状烷基，（ii）在不高于40℃的温度下具有（B）卤化烯键式不饱和烯烃的二酯和 卤化烯键式不饱和烯烃与链烷醇酸酯的摩尔比不超过1.1;（b）使酸与如此获得的反应混合物接触，从而得到包含所需卤代酯的混合物; 在该方法的步骤（a）中，使链烷醇酸酯和二酯的混合物在搅拌足够的条件下与卤化烯属不饱和烯烃接触，使卤代酯的重量比 作为步骤（b）后获得的副产物的卤代酮为至少10:1。