Perfluoroelastomer compositions for low temperature applications
    2.
    发明授权
    Perfluoroelastomer compositions for low temperature applications 有权
    用于低温应用的全氟弹性体组合物

    公开(公告)号:US07381774B2

    公开(公告)日:2008-06-03

    申请号:US11257539

    申请日:2005-10-25

    Abstract: Perfluoroelastomers that contain high levels (i.e. about 40 mole percent or more) of perfluoro(alkyl vinyl ether) copolymerized units can form stable blends with higher levels of perfluoropolyethers than can perfluoroelastomers that contain lower levels of perfluoro(alkyl vinyl ether) units. Thus, the former blends have better low temperature properties than the latter.

    Abstract translation: 含有高水平(即约40摩尔%以上)全氟(烷基乙烯基醚)共聚单元的全氟弹性体可以形成具有比含有较低水平全氟(烷基乙烯基醚)单元的全氟弹性体更高水平的全氟聚醚的稳定共混物。 因此,前者的混合物具有比后者更好的低温性能。

    Process for coagulating perfluoroelastomers
    3.
    发明申请
    Process for coagulating perfluoroelastomers 审中-公开
    凝固全氟弹性体的方法

    公开(公告)号:US20090270573A1

    公开(公告)日:2009-10-29

    申请号:US12150521

    申请日:2008-04-29

    CPC classification number: C08F214/184 C08F214/26

    Abstract: In a process for the manufacture of perfluoroelastomers, a weak organic acid, e.g. glacial acetic acid, is employed to coagulate an acidic perfluoroelastomer dispersion.

    Abstract translation: 在制备全氟弹性体的方法中,弱有机酸,例如, 冰醋酸用于凝结酸性全氟弹性体分散体。

    MANUFACTURE OF PERFLUOROELASTOMER COMPOUNDS CONTAINING FIBRILLATING PTFE
    4.
    发明申请
    MANUFACTURE OF PERFLUOROELASTOMER COMPOUNDS CONTAINING FIBRILLATING PTFE 审中-公开
    含有氟化PTFE的全氟聚合物化合物的制造

    公开(公告)号:US20110269909A1

    公开(公告)日:2011-11-03

    申请号:US12769886

    申请日:2010-04-29

    Abstract: Curable perfluoroelastomer compounds are prepared by mixing a composition comprising perfluoroelastomer, 1-20 phr fibrillating PTFE, and curative for a time ML (ASTM D5289), measured on sequential samples of compound taken at 5 minute intervals, differ by less than 5%. Articles are made therefrom by curing the compounds to form crosslinks.

    Abstract translation: 可固化的全氟弹性体化合物通过将包含全氟弹性体,1-20phr原纤化PTFE和固化剂的组合物混合在一起,其时间ML(ASTM D5289),以按5分钟间隔取得的化合物的顺序样品测量,差异小于5%。 通过固化化合物以形成交联,从而制备制品。

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