Fluorine - modified acid anhydrides
    6.
    发明授权
    Fluorine - modified acid anhydrides 失效
    氟改性酸酐

    公开(公告)号:US5362887A

    公开(公告)日:1994-11-08

    申请号:US216566

    申请日:1994-03-23

    IPC分类号: C07F7/12 C07F7/08 C07F7/18

    CPC分类号: C07F7/0812

    摘要: Novel fluorine-modified acid anhydrides of formula (1) are useful curing agents typically in epoxy resin compositions for encapsulating semiconductor devices. ##STR1## R.sup.1 is a hydrogen atom, substituted or unsubstituted monovalent hydrocarbon group, hydroxyl group, alkoxy group or alkenyloxy group. Rf is a divalent perfluoroalkylene or perfluoropolyether group of the general formula (2): ##STR2## wherein l is an integer of 0 to 8, k and m are integers of 0 to 15, j and n are 0 or 1, with the proviso that j, k, l, m and n are not equal to 0 at the same time.

    摘要翻译: 式(1)的新型氟改性酸酐是通常用于封装半导体器件的环氧树脂组合物中的有用的固化剂。 (1)图像R1是氢原子,取代或未取代的一价烃基,羟基,烷氧基或烯氧基。 Rf是通式(2)的二价全氟亚烷基或全氟聚醚基团:其中l是0至8的整数,k和m是0至15的整数,j和n是0或1, 条件是j,k,l,m和n同时不等于0。