利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

187 条记录 (耗时 0.04 秒)

    Perfluoroelastomers having a low glass transition temperature and method of making them
    1.
    发明授权
    Perfluoroelastomers having a low glass transition temperature and method of making them 有权
    具有低玻璃化转变温度的全氟弹性体及其制备方法

    公开(公告)号：US06730760B2

    公开(公告)日：2004-05-04

    申请号：US10009759

    申请日：2001-12-11

    申请人： Werner M. A. Grootaert ,  Klaus Hintzer ,  Franz März ,  Guy Van Gool ,  Allan T. Worm ,  Erik D. Hare

    发明人： Werner M. A. Grootaert ,  Klaus Hintzer ,  Franz März ,  Guy Van Gool ,  Allan T. Worm ,  Erik D. Hare

    IPC分类号： C08F11612

    CPC分类号： C08F214/262 ,  C08F14/26 ,  C08F2/16

    摘要： A method of making a curable fluoroelastomer is disclosed. The method comprises the steps of preemulsifying at least one perfluorovinylether in water, and copolymerizing the preemulsified perfluorovinylether with a gaseous fluorinated monomer in the presence of a cure site monomer. The method provides a fluoroelastomer having a glass transition temperature of less than −10° C. Also disclosed is a fluoroelastomer that consists essentially of a perfluorovinylether of formula (I) as defined below, a cure site component, perfluoromethylvinylether, and tetrafluoroethylene and/or chlorotrifluoroethylene.

    摘要翻译： 公开了一种制备可固化的含氟弹性体的方法。 该方法包括以下步骤：在水中将至少一种全氟乙烯基醚进行乳化，并在固化部位单体存在下，用气体氟化单体聚合预乳化的全氟乙烯基醚。 该方法提供了玻璃化转变温度低于-10℃的含氟弹性体。还公开了一种含氟弹性体，其主要由以下定义的式（I）的全氟乙烯基醚，固化部位组分，全氟甲基乙烯基醚和四氟乙烯和/或 氯三氟乙烯。

    Process for producing fluoropolymers having a reduced amount of polar end groups
    2.
    发明授权
    Process for producing fluoropolymers having a reduced amount of polar end groups 有权
    制备极性端基量少的含氟聚合物的方法

    公开(公告)号：US06812310B2

    公开(公告)日：2004-11-02

    申请号：US10452523

    申请日：2003-06-02

    申请人： Werner M. A. Grootaert ,  Klaus Hintzer ,  Bernhard Hirsch ,  Harald Kaspar ,  Gernot Löhr ,  Franz März ,  Guy Van Gool

    发明人： Werner M. A. Grootaert ,  Klaus Hintzer ,  Bernhard Hirsch ,  Harald Kaspar ,  Gernot Löhr ,  Franz März ,  Guy Van Gool

    IPC分类号： C08F11418

    CPC分类号： C08F214/262 ,  C08F214/267

    摘要： A fluoropolymer having a reduced amount of polar end groups. The fluoropolymer is produced by free radical polymerization of fluorinated monomers and the initiation of the polymerization is carried out in the presence of a chloride salt. Polar end groups include hydroxy groups and ionized or ionizable end groups. Examples of ionized or ionizable end groups include acid groups and salts thereof such as sulfonic acid and salts thereof, —CH2—OSO3H groups, sulfates and carbonyl containing end groups such as carboxylic and carboxylate groups. Due to the presence of chloride salt at the initiation of the free radical polymerization, CF2Cl end groups are formed instead of the polar end groups. As a result, a fluoropolymer is obtained that has improved processibility and heat resistance.

    摘要翻译： 具有极性端基量减少的含氟聚合物。 含氟聚合物通过氟化单体的自由基聚合制备，并且聚合的引发在氯化物盐的存在下进行。 极性端基包括羟基和电离或可离子化端基。 电离或可离子化端基的实例包括酸基及其盐，例如磺酸及其盐，-CH 2 -OSO 3 H基，硫酸酯和含羰基的端基如羧酸和羧酸酯基。 由于在自由基聚合开始时存在氯化物盐，而是形成CF 2 Cl端基，而不是极性端基。 结果，得到具有改善的加工性和耐热性的含氟聚合物。

    Fluoropolymers having pendant imidate structures
    8.
    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。

    Fluoropolymer compositions containing a nitrogen cure site monomer
    9.
    发明授权
    Fluoropolymer compositions containing a nitrogen cure site monomer 有权
    含有氮固化点单体的含氟聚合物组合物

    公开(公告)号：US06844388B2

    公开(公告)日：2005-01-18

    申请号：US10122489

    申请日：2002-04-11

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

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

    IPC分类号： C08L101/06 ,  C08F14/18 ,  C08K3/04 ,  C08K5/00 ,  C08K5/50 ,  C08F8/00

    CPC分类号： C08K5/0025 ,  C08K5/50 ,  C08L27/12 ,  C08L27/18

    摘要： A composition of (a) a fluoropolymer having interpolymerized units derived from a nitrogen-containing cure site monomer; and (b) a nonfluorinated catalyst composition that includes a compound having the general formula: {RA}(−){QR′k}(+) or in certain cases the precursors thereof, wherein R is hydrogen, an 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 partially fluorinated. Also provided are a method of making a fluoropolymer, a method of increasing induction time, and fluoropolymer articles containing curable or cured fluoropolymer compositions.

    摘要翻译： （a）具有衍生自含氮固化位点单体的共聚单元的含氟聚合物的组合物; （b）非氟化催化剂组合物，其包含具有以下通式的化合物：{RA}（（ - ）> {Q'k}（（+））或在某些情况下为其前体，其中R为氢，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，并且每个R'是氢或烷基，芳基，芳烷基或 烯基，k是Q的化合价; 和任选地（c）式R 2 -OH的醇，其中R 2是可部分氟化的烷基。 还提供了制备含氟聚合物的方法，增加诱导时间的方法和含有可固化或固化的含氟聚合物组合物的含氟聚合物制品。

    Fluoropolymer curing system
    10.
    发明授权
    Fluoropolymer curing system 有权
    含氟聚合物固化体系

    公开(公告)号：US07208553B2

    公开(公告)日：2007-04-24

    申请号：US10944926

    申请日：2004-09-20

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

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

    IPC分类号： C08F8/34

    CPC分类号： C08K5/19 ,  C08L27/18 ,  C08L2205/02 ,  C08L27/12 ,  C08L2666/04

    摘要： A composition of a fluoropolymer comprising interpolymerized units of nitrogen-containing cure site monomer and a catalyst comprising a compound having the formula: wherein HA is an acid, each R1, R2, and R3 is independently a C1–C20 alkyl group, which may be cyclic or heterocyclic, or Rf(CH2)x— wherein Rf is a C1–C8 linear or branched and at least partially fluorinated, and x is 1 to 4, and one R group may be a bond to another R group such that the nitrogen is bonded to or part of an alkenyl, cycloalkenyl, or aromatic group. This may further comprise a catalyst composition comprising a compound of the formula R1C(OR2)═NH, and salts thereof, where each R1 and R2 is, independently, a substituted or unsubstituted alkyl, aryl, aralkyl, alkenyl, cycloalkyl, or cycloalkenyl. Also provided are a method of making a fluoropolymer composition and articles prepared from the compositions.

    摘要翻译： 含氟聚合物的组合物，其包含含氮固化位点单体的互聚单元和包含具有下式的化合物的催化剂：其中HA是酸，每个R 1，R 2