Recovery of fluorinated surfactants from a basic anion exchange resin having quaternary ammonium groups
    93.
    发明申请
    Recovery of fluorinated surfactants from a basic anion exchange resin having quaternary ammonium groups 有权
    从具有季铵基团的碱性阴离子交换树脂中回收氟化表面活性剂

    公开(公告)号:US20060205828A1

    公开(公告)日:2006-09-14

    申请号:US11373430

    申请日:2006-03-10

    IPC分类号: C08J5/20

    摘要: The invention provides a method for recovery of an anionic fluorinated surfactant from a basic anion exchange resin having quaternary ammonium groups, the method comprising eluting the anion exchange resin with a composition comprising an ammonium salt and a water miscible organic solvent. The method according to the invention may provide one or more of the following advantages. For example, the method can be designed to allow for recovery of substantially all of the fluorinated surfactant from a basic anion exchange resin having quaternary ammonium groups. Also, the liquid used for recovering the surfactant from the anion exchange resin is a simple liquid that can be readily and cost effectively manufactured. Further the process may be carried out in a convenient and easy manner. Furthermore, the method generally does not require large amounts of the eluting composition.

    摘要翻译: 本发明提供了从具有季铵基团的碱性阴离子交换树脂中回收阴离子氟化表面活性剂的方法,该方法包括用包含铵盐和水混溶性有机溶剂的组合物洗脱阴离子交换树脂。 根据本发明的方法可以提供一个或多个以下优点。 例如,该方法可被设计成允许从具有季铵基团的碱性阴离子交换树脂中恢复基本上所有的氟化表面活性剂。 此外,用于从阴离子交换树脂中回收表面活性剂的液体是可以容易且成本有效地制造的简单液体。 此外,该方法可以以方便和容易的方式进行。 此外,该方法通常不需要大量的洗脱组合物。

    Aqueous emulsion polymerization of functionalized fluoromonomers
    94.
    发明授权
    Aqueous emulsion polymerization of functionalized fluoromonomers 有权
    官能化含氟单体的水乳液聚合

    公开(公告)号:US07071271B2

    公开(公告)日:2006-07-04

    申请号:US10697768

    申请日:2003-10-30

    IPC分类号: C08F114/18

    CPC分类号: C08F214/18 C08F214/184

    摘要: A method is provided for aqueous emulsion co-polymerization of two or more fluoromonomers comprising the steps of: 1) forming an aqueous pre-emulsion by mixing a fluoromonomer according to formula I: F2C═CF—R1—SO2X  (I) wherein R1 is a branched or unbranched perfluoroalkyl, perfluoroalkoxy or perfluoroether group comprising 1–15 carbon atoms and 0–4 oxygen atoms and wherein X is F, Cl or Br, together with 0.001–0.9 molar equivalents of a base, in the absence of added emulsifier; and 2) reacting the pre-emulsion with one or more perfluorinated comonomers in the absence of added emulsifier so as to form a fluoropolymer latex comprising a fluoropolymer wherein more than 1 mol % of monomer units are derived from the fluoromonomer according to formula I. In another aspect, the present invention provides a fluoropolymer derived from the fluoropolymer latex made according to the method of the present invention which is free of added emulsifier. In another aspect, the present invention provides a polymer electrolyte membrane comprising the fluoropolymer made according to the method of the present invention which is free of added emulsifier.

    摘要翻译: 提供了一种用于两种或更多种含氟单体的水乳液共聚的方法,包括以下步骤:1)通过混合式I的含氟单体形成水性预乳液:<?in-line-formula description =“In-line 公式“end =”lead“?> F 2 C-CF-R 1 -SO 2 X(I)<βin-line -formulae description =“In-line Formulas”end =“tail”?>其中R 1是支链或非支链全氟烷基,包含1-15个碳原子和0-4个氧原子的全氟烷氧基或全氟醚基团 在不加入乳化剂的情况下,X是F,Cl或Br,以及0.001-0.9摩尔当量的碱; 和2)在不存在加入的乳化剂的情况下使预乳液与一种或多种全氟化共聚单体反应,以便形成含氟聚合物的含氟聚合物胶乳,其中大于1mol%的单体单元衍生自根据式I的含氟单体。 另一方面,本发明提供了衍生自根据本发明的方法制备的含氟聚合物胶乳的氟聚合物,其不含添加的乳化剂。 另一方面,本发明提供了一种聚合物电解质膜,其包含根据本发明的方法制备的含氟聚合物,其不含添加的乳化剂。

    Melt-processible thermoplastic fluoropolymers having improved processing characteristics and method of producing same
    98.
    发明授权
    Melt-processible thermoplastic fluoropolymers having improved processing characteristics and method of producing same 有权
    具有改进的加工特性的可熔融加工的热塑性含氟聚合物及其制备方法

    公开(公告)号:US06927265B2

    公开(公告)日:2005-08-09

    申请号:US10774154

    申请日:2004-02-06

    摘要: The present invention provides a fluoropolymer that is melt-processible and thermoplastic and that has a melting point between 100° C. and 320° C. The fluoropolymer is derived from (a) one or more gaseous fluorinated monomers, (b) one or more modifiers selected from (i) olefins having a bromine or iodine atom bonded to a carbon of the double bond of the olefin, (ii) olefins corresponding to formula (I): Xa2C═CXa—Rf—Br  (I) wherein each Xa independently represents hydrogen, fluorine, bromine, chlorine or iodine, Rf is a perfluoroalkylene group, typically having 1 to 8 carbon atoms, a perfluorooxyalkylene group or a perfluoropolyether group and (iii) mixtures thereof; and (c) optionally one or more comonomers selected from non-gaseous fluorinated monomers and non-fluorinated monomers. The resulting fluoropolymer has long chain branches. The invention further provides a method for making these polymers.

    摘要翻译: 本发明提供了可熔融加工和热塑性且熔点在100℃和320℃之间的含氟聚合物。该含氟聚合物衍生自(a)一种或多种气态氟化单体,(b)一种或多种 选自(i)具有与烯烃双键结合的溴或碘原子的烯烃的改性剂,(ii)对应于式(I)的烯烃:<?在线式描述=“在线式 “end =”lead“?> X C-CX -R 其中每个X a a独立地表示氢,氟,溴,氯或碘,R 1,R 2, 通常具有1至8个碳原子的全氟亚烷基,全氟代亚烷基或全氟聚醚基团,和(iii)它们的混合物; 和(c)任选的一种或多种选自非气态氟化单体和非氟化单体的共聚单体。 得到的含氟聚合物具有长链分支。 本发明还提供了制备这些聚合物的方法。

    Fluoropolymer compositions
    99.
    发明申请
    Fluoropolymer compositions 审中-公开
    含氟聚合物组合物

    公开(公告)号:US20050154145A1

    公开(公告)日:2005-07-14

    申请号:US11067799

    申请日:2005-02-28

    摘要: A catalyst composition includes a compound having the general formula: {RA}(−){QR′k}(+)or the precursors thereof, wherein R is a nonfluorinated, partially fluorinated, or perfluorinated alkyl, alkenyl, cycloalkyl, cycloalkenyl, aryl or aralkyl, A is an acid- or acid-derivative anion, Q is phosphorous, sulfur, nitrogen, arsenic, or antimony, and each R′ is hydrogen or an alkyl, aryl, aralkyl, or alkenyl group, k is the valence of Q; and optionally (c) an alcohol of the formula: R2—OH, wherein R2 is an alkyl group which can be fluorinated. Also provided are curable and cured fluoropolymer compositions involving such a catalyst.

    摘要翻译: 催化剂组合物包括具有以下通式的化合物:其中R 1,R 2,R 3,R 3, 其中R是非氟化的,部分氟化的或全氟化的烷基,烯基,环烷基,环烯基,芳基或芳烷基,A是酸或酸衍生的阴离子,Q是磷,硫,氮,砷或锑, R'是氢或烷基,芳基,芳烷基或链烯基,k是Q的化合价; 和任选地(c)下式的醇:R 2 -OH,其中R 2是可被氟化的烷基。 还提供了包含这种催化剂的可固化和固化的含氟聚合物组合物。

    Process for reducing the amount of fluorinated surfactant in aqueous fluoropolymer dispersions
    100.
    发明申请
    Process for reducing the amount of fluorinated surfactant in aqueous fluoropolymer dispersions 审中-公开
    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:US20050070633A1

    公开(公告)日:2005-03-31

    申请号:US10992961

    申请日:2004-11-19

    IPC分类号: C08F6/16 C08L27/12 C08L1/00

    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 fluoropolymer 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少于4小时使含氟聚合物含水分散体与阴离子交换树脂接触,将含氟聚合物水分散体中的氟化乳化剂的量减少到所需的 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。