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187 条记录 (耗时 0.041 秒)

    Process for reducing the amount of fluorinated surfactant in aqueous fluoropolymer dispersions
    52.
    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
    53.
    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 for the preparation of fluorinated carboxylic acid fluorides
    55.
    发明授权
    Process for the preparation of fluorinated carboxylic acid fluorides 失效
    制备氟化羧酸氟化物的方法

    公开(公告)号：US4985594A

    公开(公告)日：1991-01-15

    申请号：US389271

    申请日：1989-08-03

    申请人： Peter Blickle ,  Klaus Hintzer ,  Werner Schwertfeger ,  Heinz Strutz

    发明人： Peter Blickle ,  Klaus Hintzer ,  Werner Schwertfeger ,  Heinz Strutz

    IPC分类号： C07C51/58 ,  C07C53/50 ,  C07C59/135

    CPC分类号： C07C51/58

    摘要： Process for the preparation of fluorinated carboxylic acid fluoridesFluorinated carboxylic acid fluorides of the Formula I ##STR1## can be prepared from fluorinated vinyl ethers of the Formula II ##STR2## by heating the vinyl ethers to a temperature of 100.degree. to 350.degree. C.Perfluorinated carboxylic acids and derivatives thereof can be prepared from the carboxylic acid fluorides by secondary reactions, for example hydrolysis, esterification or aminolysis.

    摘要翻译： 氟化氟化物的制备方法式I的氟化羧酸氟化物可以通过将乙烯基醚加热至100℃，由式II的氟化乙烯基醚制备（II） 全氟羧酸及其衍生物可以通过二次反应由羧酸氟化物制备，例如水解，酯化或氨解。

    Explosion taming surfactants for the production of perfluoropolymers
    59.
    发明授权
    Explosion taming surfactants for the production of perfluoropolymers 有权
    用于生产全氟聚合物的爆炸性游离表面活性剂

    公开(公告)号：US08119750B2

    公开(公告)日：2012-02-21

    申请号：US11457236

    申请日：2006-07-13

    申请人： Klaus Hintzer ,  Michael Jürgens ,  Harald Kaspar ,  Andreas R. Maurer ,  Werner Schwertfeger ,  Tilman C. Zipplies

    发明人： Klaus Hintzer ,  Michael Jürgens ,  Harald Kaspar ,  Andreas R. Maurer ,  Werner Schwertfeger ,  Tilman C. Zipplies

    IPC分类号： C08F16/24

    CPC分类号： C08F14/26 ,  C08F2/22

    摘要： A process comprising polymerizing tetrafluoroethylene in an aqueous emulsion in the presence of a non-telogenic surfactant having an anionic portion with the general formula (I): Rf—O-L-CO2—  (I) wherein Rf is selected from a partially fluorinated alkyl group, a perfluorinated alkyl group, a partially fluorinated alkyl group interrupted by one or more oxygen atoms, and a perfluorinated alkyl group interrupted by one or more oxygen atoms, wherein Rf has from 1 to 10 carbon atoms; and L is an alkylene group having the general formula (CX2)n wherein each X is independently selected from Rf, fluorine, and hydrogen and n is selected from 1 to 5, with the proviso that the surfactant contains at least one unit selected from a —CH2— unit and a —CHF— unit. Also provided are aqueous dispersions comprising these surfactants and methods of coating substrates with the aqueous dispersions.

    摘要翻译： 在具有通式（I）的阴离子部分的非脱落表面活性剂存在下，在水乳液中聚合四氟乙烯的方法：Rf-OL-CO 2 - （I）其中Rf选自部分氟化的烷基， 全氟化烷基，被一个或多个氧原子间隔的部分氟化烷基和被一个或多个氧原子间隔的全氟化烷基，其中Rf具有1至10个碳原子; 并且L是具有通式（CX2）n的亚烷基，其中每个X独立地选自Rf，氟和氢，n选自1至5，条件是表面活性剂含有至少一个选自 -CH2-单元和-CHF-单元。 还提供了包含这些表面活性剂的水分散体和用水分散体涂覆底物的方法。