Reaction products of polysiloxanes and polyphenols
    11.
    发明授权
    Reaction products of polysiloxanes and polyphenols 失效
    聚硅氧烷和多酚的反应产物

    公开(公告)号:US4022753A

    公开(公告)日:1977-05-10

    申请号:US556069

    申请日:1975-03-06

    CPC分类号: C08G77/52 C08G77/38 C08L63/00

    摘要: Reaction products, containing phenolic hydroxyl groups, of polysiloxanes and polyphenols are obtained by reacting alkoxy-terminated or acyloxy-terminated polysiloxane compounds with polyphenols at elevated temperature, employing 1.2 to 10 equivalents of phenolic hydroxyl groups per 1 equivalent of alkoxy group or acyloxy group. The reaction products containing hydroxyl groups can be used for curing and modifying epoxide resins and give flexible, hydrophobic plastics of valuable mechanical and dielectric properties.

    摘要翻译: 通过使烷氧基封端的或酰氧基封端的聚硅氧烷化合物与多酚在升高的温度下反应,每1当量的烷氧基或酰氧基使用1.2至10当量的酚羟基,得到含有酚羟基的聚硅氧烷和多酚的反应产物。 含羟基的反应产物可用于固化和改性环氧树脂,并提供有价值的机械和介电性质的柔性疏水性塑料。