Epoxy resin compositions
    8.
    发明授权
    Epoxy resin compositions 失效
    环氧树脂组合物

    公开(公告)号:US4368299A

    公开(公告)日:1983-01-11

    申请号:US285979

    申请日:1981-07-23

    CPC分类号: C08G8/24 C08G8/22 C08L63/00

    摘要: A composition comprising an epoxy resin having at least two epoxy groups in the molecule and a hardener selected from the group consisting of (1) a resorcinol novolak having an unreacted resorcinol content of 10% by weight or less, (2) a mixed novolak of a resorcinol novolak and a monohydric phenol novolak having a total unreacted resorcinol and monohydric phenol content of 8% by weight or less, and (3) a resorcinol/monohydric phenol polycondensation novolak having a polycondensed resorcinol content of 30 mole % or more and a total unreacted resorcinol and monohydric phenol content of 8% by weight or less.The composition is useful for moldings, laminates, paints, and adhesives with excellent thermal resistance, durability and electrical characteristics.

    摘要翻译: 一种组合物,其包含在分子中具有至少两个环氧基的环氧树脂和选自(1)具有10重量%以下的未反应间苯二酚含量的间苯二酚酚醛清漆的固化剂,(2)混合的酚醛清漆 间苯二酚酚醛清漆和一元羟酚酚醛清漆,其总共未反应间苯二酚和一元酚含量为8重量%以下,(3)间苯二酚/一羟基酚缩聚酚醛清漆,其中,间苯二酚间苯二酚含量为30摩尔%以上, 未反应的间苯二酚和一元酚的含量为8重量%以下。 该组合物可用于具有优异耐热性,耐久性和电特性的模制品,层压材料,油漆和粘合剂。