Fluorinated ether compositions and methods of using the same
    6.
    发明授权
    Fluorinated ether compositions and methods of using the same 失效
    氟化醚组合物及其使用方法

    公开(公告)号:US08476385B2

    公开(公告)日:2013-07-02

    申请号:US12602877

    申请日:2008-06-06

    IPC分类号: C08F18/20

    摘要: A composition including at least one first divalent unit represented by formula: Each Rf is independently selected from the group consisting of Rfa—(O)t—CHF—(CF2)n—; [Rfa—(O)t—C(L)H—CF2—O]m—W—; Rfb-O—(CF2)p-; F(CkF2k)—(O—CkF2k)P—O—CF2—; and CF3—O—(CF2)3—(OCF(CF3)—CF2)Z—O-L1-. Each Q is independently selected from the group consisting of a bond, —C(O)—N(R1)—, and —C(O)—O—. Each X is independently selected from the group consisting of alkylene and arylalkylene, wherein alkylene and arylalkylene are each optionally interrupted by at least one ether linkage and optionally terminated by —N(R1)—C(O)— or —O—C(O)—. R and R1 are each independently selected from the group consisting of hydrogen and alkyl having from 1 to 4 carbon atoms. Rfa represents a partially or fully fluorinated alkyl group having from 1 to 10 carbon atoms and optionally interrupted with at least one oxygen atom. Rfb is selected from the group consisting of CF3CFH— and F(CjF2j)-. Methods of reducing surface tension of a liquid, making foams, and treating a surface using the compositions are also disclosed.

    摘要翻译: 包含至少一个由式表示的第一二价单元的组合物:每个Rf独立地选自Rfa-(O)t-CHF-(CF 2)n - ; [Rfa-(O)t -C(L)H-CF 2 -O] m -W-; Rfb-O-(CF2)p-; F(CkF2k) - (O-CkF2k)P-O-CF2-; 和CF 3 -O-(CF 2)3 - (OCF(CF 3)-CF 2)Z-O-L 1。 每个Q独立地选自由键,-C(O)-N(R 1) - 和-C(O)-O-组成的组。 每个X独立地选自亚烷基和芳基亚烷基,其中亚烷基和芳基亚烷基各自任选地被至少一个醚键中断,并且任选地被-N(R 1)-C(O) - 或-OC(O) - 。 R和R 1各自独立地选自氢和具有1至4个碳原子的烷基。 Rfa表示具有1至10个碳原子并且任选被至少一个氧原子中断的部分或完全氟化的烷基。 Rfb选自CF 3 CFH-和F(C 1 F 2)) - 。 还公开了降低液体的表面张力,制造泡沫和使用组合物处理表面的方法。