Liquid fluoropolymer composition and process for producing crosslinked fluorochemical

    公开(公告)号:US20070141425A1

    公开(公告)日:2007-06-21

    申请号:US10580964

    申请日:2004-12-01

    IPC分类号: H01M8/10 B05D5/12

    摘要: It is an object of the present invention to provide a liquid composition which comprises an acid/acid salt group-containing polymer and from which cured articles excellent in mechanical characteristics and undergoing only slight dimensional changes depending on the moisture content can be produced by application thereof to a substrate or impregnation of a porous material therewith. The present invention relates to a fluoropolymer liquid composition comprising a fluoropolymer liquid (A) which comprises a liquid medium and a crosslinkable functional group-containing crosslinkable fluoropolymer, wherein said fluoropolymer liquid (A) is a fluoropolymer liquid dispersion (AD) having, dispersed in a liquid dispersion medium, particles of a crosslinkable fluoropolymer (PD) containing acid/acid salt groups or organic groups capable of undergoing hydrolysis and thus being converted to carboxyl groups, or a fluoropolymer solution (AS) having, dissolved in a fluorosolvent or an alcohol/water mixed solvent, a crosslinkable fluoropolymer (PS) containing acid/acid salt groups or acid/acid salt groups precursors; said acid/acid salt groups are sulfonic acid groups, carboxyl groups or groups of the formula —SO2NR2R3, —SO3NR4R5R6R7, —SO3M11/L, —COONR8R9R10R11 or —COOM21/L, wherein R2 represents a hydrogen atom or M51/L, R3 represents an alkyl group or an sulfonyl-containing group, R4, R5, R6, R7, R8, R9, R10 and R11 are the same or different and each represents a hydrogen atom or an alkyl group, and M1, M2 and M5 each represents a metal having a valence of L, said metal having a valence of L being a metal belonging to the group 1, 2, 4, 8, 11, 12 or 13 of the periodic table; and said acid/acid salt groups precursors are —SO2F, —SO2NR22R23 (wherein R22 and R23 are the same or different and each represents an alkyl group) or organic groups capable of undergoing hydrolysis and thus being converted to carboxyl groups.

    Fluorine-containing elastomeric copolymers, and their production
    6.
    发明授权
    Fluorine-containing elastomeric copolymers, and their production 失效
    含氟弹性体共聚物及其生产

    公开(公告)号:US4487903A

    公开(公告)日:1984-12-11

    申请号:US427559

    申请日:1982-09-29

    CPC分类号: C08F216/1416

    摘要: A fluorine-containing elastomeric copolymer which comprises units of at least one fluorovinyl ether of the formula: ##STR1## wherein X is C.sub.1 -C.sub.3 perfluoroalkyl, C.sub.1 -C.sub.3 .omega.-hydroperfluoroalkyl or C.sub.1 -C.sub.3 .omega.-chloroperfluoroalkyl, Y is hydrogen, chlorine, fluorine, trifluoromethyl, difluoromethyl or chlorodifluoromethyl and n is an integer of 1 to 4 and units of at least one other fluorine-containing monomer copolymerizable therewith, the content of the fluorovinyl ether units being 15 to 50 mol %, which has excellent resistance to low temperatures.

    摘要翻译: 一种含氟弹性体共聚物,其包含至少一种下式的氟代乙烯基醚:XO(CFYCF2O)nCFCF2,其中X为C1-C3全氟烷基,C1-C3ω-氢全氟烷基或C1-C3ω-氯全氟烷基,Y为氢, 氯,氟,三氟甲基,二氟甲基或氯二氟甲基,n为1〜4的整数,和可与其共聚的至少一种其它含氟单体的单元,氟乙烯醚单元的含量为15〜50摩尔%,耐电阻优异 到低温。

    Novel polymer and its preparation and use
    7.
    发明授权
    Novel polymer and its preparation and use 失效
    新型聚合物及其制备与使用

    公开(公告)号:US5081192A

    公开(公告)日:1992-01-14

    申请号:US354287

    申请日:1989-05-19

    CPC分类号: C08F8/26 C08F8/42

    摘要: A polymer of the formula:PC--[CH.sub.2 CYI--(CH.sub.2).sub.n --SiR.sub.x X.sub.3-x].sub.m (I)wherein PC is a polymer chain, X is a monovalent functional group, Y is a hydrogen atom or a lower alkyl group, R is a hydrogen atom or an inactive monovalent organic group, X is an integer of 0 to 3, m is a positive integer which is not larger than the number of ends of the polymer chain PC, and n is 0, 1 or 2, having a molecular weight of 5.times.10.sup.2 to 5.times.10.sup.6, which is relatively stable and easily handled.

    Segmented polymers containing fluorine and iodine and their production
    9.
    发明授权
    Segmented polymers containing fluorine and iodine and their production 失效
    含氟和碘的分段聚合物及其生产

    公开(公告)号:US4158678A

    公开(公告)日:1979-06-19

    申请号:US811987

    申请日:1977-06-30

    CPC分类号: C08F293/00 C08F293/005

    摘要: A segmented polymer comprising a sequence of two or more polymer segments, an iodine atom liberated from an iodinated compound bonded at a terminal position of said sequence and a fragment of the iodinated compound from which at least one iodine atom has been removed bonded at another terminal position of said sequence, whereby said sequence intervenes between said iodine atom and said fragment, wherein adjacent polymer segments are different in steric configuration or monomeric composition, at least one of said polymer segments containing fluorine and each polymer segment having a molecular weight of not less than 10,000 but at least one polymer segment having a molecular weight of not less than 30,000. The polymer may contain additional moieties which originate from the monomers which constitute the polymer segments and from the iodinated compound, when the latter has a polymerizable double bond. The segmented polymers are prepared in a sequence of steps involving radical polymerization.

    摘要翻译: 包含两个或多个聚合物链段的序列的分段聚合物,从在所述序列的末端键合的碘化化合物释放的碘原子和在其另一个末端除去至少一个碘原子的碘化化合物的片段 所述序列的位置,其中所述序列介于所述碘原子和所述片段之间,其中相邻的聚合物片段的空间构型或单体组成不同,所述聚合物片段中至少一个含有氟,每个聚合物片段的分子量不少于 至少一个分子量不小于30,000的聚合物链段。 当聚合物具有可聚合双键时,聚合物可以含有源自构成聚合物链段的单体和来自碘化化合物的另外的部分。 分段聚合物按涉及自由基聚合的步骤顺序制备。

    Fluorinated graft cation exchange copolymers
    10.
    发明授权
    Fluorinated graft cation exchange copolymers 失效
    氟化接枝阳离子交换共聚物

    公开(公告)号:US4094826A

    公开(公告)日:1978-06-13

    申请号:US827018

    申请日:1977-08-23

    CPC分类号: C08F259/08

    摘要: Ion exchanger comprising a water-insoluble copolymer prepared by post-polymerizing at least one fluoroolefin monomer to a perfluorovinylacetic acid-vinylidene fluoride copolymer containing not less than 25% by mole of the perfluorovinylacetic acid unit in an aqueous solution of said copolymer in the presence of an organic or inorganic peroxide. The ion exchanger has excellent heat and chemical resistances and dimensional stability.

    摘要翻译: 离子交换剂,其包含通过使至少一种氟代烯烃单体在含有不少于25%摩尔全氟乙烯基乙酸单元的全氟乙烯基乙酸 - 偏二氟乙烯共聚物中在所述共聚物的水溶液中存在下制备的水不溶性共聚物 有机或无机过氧化物。 离子交换器具有优异的耐热和耐化学性和尺寸稳定性。