Curable Fluoroelastomers
    76.
    发明公开
    Curable Fluoroelastomers 有权
    可固化的含氟弹性体

    公开(公告)号:EP1347012A2

    公开(公告)日:2003-09-24

    申请号:EP02011786.7

    申请日:2002-05-28

    IPC分类号: C08L27/16 C08J3/24

    CPC分类号: C08K5/0025 C08L27/16

    摘要: Fluoroelastomers curable by ionic route based on vinylidenfluoride (VDF) comprising:

    a) 100 parts by weight of fluoroelastomer based on vinylidenfluoride (VDF) substantially polar end group free;
    b) from 0.05 to 5 phr of accelerant;
    c) from 0.5 to 15 phr of curing agent;
    d) from 1 to 40 phr of one or more inorganic acid acceptors, preferably bivalent metal oxides;
    e) from 0 to 2,5 phr, preferably from 0 to 1.5 phr of one or more basic compounds preferably hydroxides of bivalent metals or of weak acid metal salts;
    f) from 0 to 80 phr of reinforcing fillers.

    摘要翻译: 包含:a)100重量份基于不含氟乙烯基(VDF)的基本上极性端基的含氟弹性体;和b)基于乙烯基氟化物(VDF)的氟弹性体。 b)0.05至5phr的促进剂; c)0.5至15phr的固化剂; d)1至40phr的一种或多种无机酸受体,优选二价金属氧化物; e)0-2.5phr,优选0-1.5phr的一种或多种碱性化合物,优选二价金属或弱酸金属盐的氢氧化物; f)0至80phr的增强填料。

    Fluorinated Ionomers
    80.
    发明公开
    Fluorinated Ionomers 有权
    Fluorierte Ionomere

    公开(公告)号:EP1323744A1

    公开(公告)日:2003-07-02

    申请号:EP02028294.3

    申请日:2002-12-17

    IPC分类号: C08F8/00 C08J5/22

    摘要: Semicrystalline sulphonic fluorinated ionomers having an equivalent weight higher than 700 g/eq, up to 1,700, comprising:

    (A) monomeric units deriving from one or more fluorinated monomers containing at least one ethylene unsaturation;
    (B) fluorinated monomeric units containing sulphonyl groups -SO 2 F in such amount to give the above equivalent weight, deriving from F 2 C=CF-O-(CF 2 ) q -SO 2 F, q being an integer-equal to 2 or 3;
    and having the following properties for a TFE/ (B) copolymer:

    hydration, expressed in % of H 2 O at 100°C absorbed by the film prepared from the ionomer and after tranformation from the -SO 2 F form into the -SO 3 H form, having the following values:









    at 750 EW
    higher than 55%, pref. >70%

    at 850 EW
    higher than 45%, pref. >55%

    at 1,000 EW
    higher than 35%, pref. >40%

    at 1,100 EW
    higher than 28%, pref. >32%

    at 1,200 EW
    higher than 23%, pref. >25%

    摘要翻译: 具有当量重量高于700g / eq,高达1,700的半结晶磺化氟化离聚物包含:(A)衍生自含有至少一个乙烯不饱和度的一种或多种氟化单体的单体单元; (B)含有磺酰基-SO 2 F的氟化单体单元的量为上述当量,得自F2C = CF-O-(CF2)q-SO2F,q为整数等于2或3; 并且对于TFE /(B)共聚物具有以下性质:水合,以100%的H 2 O%表示,由离聚物制备的膜吸收并且从-SO 2 F形式转化为-SO 3 H形式后,具有以下 值: