Perfluoropolyethers free from peroxidic oxygen and containing
perfluoroepoxy groups positioned along the perfluoropolyether chain,
and their derivatives
    16.
    发明授权
    Perfluoropolyethers free from peroxidic oxygen and containing perfluoroepoxy groups positioned along the perfluoropolyether chain, and their derivatives 失效
    不含过氧氧并含有沿全氟聚醚链定位的全氟环氧基的全氟聚醚及其衍生物

    公开(公告)号:US5177226A

    公开(公告)日:1993-01-05

    申请号:US712098

    申请日:1991-06-07

    IPC分类号: C08G59/14 C08G59/34 C08G65/00

    摘要: Perfluoropolyethers having fluorinated epoxy groups positioned along their perfluoropolyether chain, and free from peroxidic oxygen, are obtained by means of a low-temperature oxidation process, in the liquid phase, with molecular oxygen and in the presence of U.V. light, of a mixture of a perfluorinated monoolefin and a perfluorinated coniugated diene, and of the subsequent photochemical decomposition of the peroxy groups contained in the photoxidation product, carried out by treating the peroxy-groups-containing product with U.V. light at a temperature comprised within the range of from 0.degree. C. to 160.degree. C. Derivatives of said epoxy containing perfluoropolyethers in which the epoxy groups have been turned into functional groups.

    摘要翻译: 具有位于其全氟聚醚链上且不含过氧氧的氟化环氧基的全氟聚醚通过在液相中与分子氧的低温氧化反应获得。 光,全氟化单烯烃和全氟化聚环烯二烯的混合物,以及通过用紫外线处理含过氧基的产物进行的光氧化产物中所含的过氧基的随后的光化学分解。 在0℃至160℃范围内的温度下进行光照。所述含环氧基的全氟聚醚的衍生物已经变成官能团。