Curable fluoropolyether rubber compositions
    1.
    发明申请
    Curable fluoropolyether rubber compositions 有权
    可固化氟聚醚橡胶组合物

    公开(公告)号:US20020022685A1

    公开(公告)日:2002-02-21

    申请号:US09901108

    申请日:2001-07-10

    摘要: A fluoropolyether rubber composition comprising (A) a linear fluoropolyether compound containing at least two alkenyl groups and having a perfluoroalkyl ether structure in its backbone, (B) an organosilicon compound having at least two silicon atom-bound hydrogen atoms which all form HnullSi(CaH2a)Si structures wherein nullanull is 1, 2 or 3, (C) a hydrosilylation catalyst, and (D) an antidegradant, typically an aromatic secondary amine compound is curable into products having heat resistance, chemical resistance, solvent resistance, parting property, water repellency, oil repellency, and weather resistance as well as resistance to acid, alkali and oxidative degradation.

    摘要翻译: 一种氟聚醚橡胶组合物,其包含(A)含有至少两个烯基并且在其主链上具有全氟烷基醚结构的直链含氟聚醚化合物,(B)具有至少两个硅原子键合的氢原子的有机硅化合物,其全部形成H-Si (C 2 H 3)Si结构,其中“a”为1,2或3,(C)氢化硅烷化催化剂,(D)抗降解剂(通常为芳族仲胺化合物)可固化成具有耐热性,耐化学性,耐溶剂性, 分离性,防水性,拒油性和耐候性以及耐酸碱性和氧化降解性。

    Curable fluoropolyether rubber compositions
    2.
    发明申请
    Curable fluoropolyether rubber compositions 有权
    可固化氟聚醚橡胶组合物

    公开(公告)号:US20020077451A1

    公开(公告)日:2002-06-20

    申请号:US09893603

    申请日:2001-06-29

    IPC分类号: C08G067/02 C08G073/24

    CPC分类号: C08G65/336 C08G65/007

    摘要: A curable fluoropolyether rubber composition comprising (A) a straight-chain fluoropolyether compound having at least two alkenyl groups and a perfluoropolyether structure backbone, (B) an organosilicon compound having at least two silicon atom-bonded hydrogen atoms, which all form HnullSiCH2null structures, and (C) a hydrosilylation catalyst cures into parts which have good heat resistance, chemical resistance, solvent resistance, parting property, water repellency, oil repellency and weather resistance as well as improved acid and alkali resistance and are useful as sealants.

    摘要翻译: 一种可固化的氟聚醚橡胶组合物,其包含(A)具有至少两个烯基和全氟聚醚结构主链的直链含氟聚醚化合物,(B)具有至少两个与硅原子键合的氢原子的有机硅化合物,其全部形成H-SiCH 2 - (C)氢化硅烷化催化剂固化成具有良好的耐热性,耐化学性,耐溶剂性,脱模性,防水性,拒油性和耐候性以及改善的耐酸和耐碱性的部分,并且可用作密封剂。

    Curable fluoropolyether base rubber compositions
    3.
    发明申请
    Curable fluoropolyether base rubber compositions 有权
    可固化氟聚醚基橡胶组合物

    公开(公告)号:US20020019483A1

    公开(公告)日:2002-02-14

    申请号:US09897479

    申请日:2001-07-03

    IPC分类号: C08F008/00

    摘要: A liquid fluoropolyether base rubber composition comprising (A) a linear fluoropolyether compound containing at least two alkenyl groups and having a perfluoroalkyl ether structure in its backbone, (B) a silica filler having a specific surface area of at least 100 m2/g and a bulk density of 100-200 g/l, (C) a curing amount of an organosilicon compound having at least two silicon-bound hydrogen atoms, and (D) a hydrosilylation catalyst is unlikely to thicken despite filler loading, is suitable for liquid injection molding and curable into products having improved mechanical properties as well as water repellency, oil repellency, solvent resistance, chemical resistance and weather resistance.

    摘要翻译: 一种液体含氟聚醚基橡胶组合物,其包含(A)包含至少两个烯基并且在其主链上具有全氟烷基醚结构的直链含氟聚醚化合物,(B)具有至少100m 2 / g的比表面积的二氧化硅填料和 堆积密度为100-200g / l,(C)具有至少两个硅键合氢原子的有机硅化合物的固化量,(D)氢化硅烷化催化剂尽管填料负载不太可能变稠,但适用于液体注入 成型和固化成具有改善的机械性能以及防水性,拒油性,耐溶剂性,耐化学性和耐候性的产品。