Oxidation stable polyfluoroalkylether grease compositions
    21.
    发明授权
    Oxidation stable polyfluoroalkylether grease compositions 失效
    氧化稳定的多氟烷基醚润滑脂组合物

    公开(公告)号:US4431556A

    公开(公告)日:1984-02-14

    申请号:US418114

    申请日:1982-09-14

    Abstract: A grease composition comprising a major amount of a polyfluoroalkylether base fluid of the general formulaAO(CF.sub.2 CF.sub.2 O).sub.m (CF.sub.2 O).sub.n Bwherein A and B are --CF.sub.3 or --C.sub.2 F.sub.5, and m and n are integers and the sum of m+n is between 2 and 200 and the ratio n/m is in the range of 0.1:1 to 10:1, a minor amount of a thickener and an oxidation inhibiting amount of a perfluoroalkylether phenylphosphine of the general formula ##STR1## wherein a has a value of zero or 1, Ar is a phenylene or perfluorophenylene group, and --R.sub.f OR.sub.f is a perfluoroalkylether group containing at least one ether linkage.

    Abstract translation: 一种润滑脂组合物,其包含主要量的通式AO(CF 2 CF 2 O)m(CF 2 O)n B的多氟烷基醚基液,其中A和B为-CF 3或-C 2 F 5,m和n为整数,m + n的和为 在2和200之间,比率n / m在0.1:1至10:1的范围内,少量的增稠剂和氧化抑制量的通式为“IMAGE”的全氟烷基醚苯基膦,其中a具有值 为0或1,Ar为亚苯基或全氟亚苯基,-RfORf为含有至少一个醚键的全氟烷基醚基。

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