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    • 5. 发明授权
    • Thermosetting resin compositions prepared from isocyanates and
epoxyphenols
    • 由异氰酸酯和环氧苯酚制备的热固性树脂组合物
    • US3984376A
    • 1976-10-05
    • US483044
    • 1974-06-25
    • Hitoshi YokonoShunichi NumataKazuo GotoMasahiko SakaiToshikazu NaraharaJunji Mukai
    • Hitoshi YokonoShunichi NumataKazuo GotoMasahiko SakaiToshikazu NaraharaJunji Mukai
    • C08G18/18C08G18/28C08G18/58C08G18/06
    • C08G18/2815C08G18/18C08G18/2845C08G18/58
    • Thermosetting resin compositions are obtained by mixing a resinous addition product produced by reacting an isocyanate compound having a molecular weight of 100 to 2000 and containing at least two isocyanate groups in its molecule with an epoxyphenol compound represented by the formula, ##EQU1## wherein R is a bi- or more valent group containing phenyl, R.sub.1 is hydrogen, methyl or ethyl, m and n each are an integer of 1-8, and optionally an ordinary thermosetting epoxy resin, and 0.01 to 10 % by weight of a basic heterocycle forming catalyst based on the weight of said resinous addition product, said isocyanate compound and said epoxyphenol compound being blended so that said OH group may be present in an amount of 1/3 to 1 equivalent per equivalent of said isocyanate group and said epoxy group may be present in an amount of one-fifth to two-thirds equivalent per equivalent of said isocyanate group. The said addition product can be converted into a stable B-stage and is particularly useful as a varnish for prepreg.
    • 通过将分子量为100〜2000的异氰酸酯化合物与分子中至少含有2个异氰酸酯基的异氰酸酯化合物与由式O ANGLE(HO)nR表示的环氧苯酚化合物反应而得到的树脂添加物混合,得到热固性树脂组合物, - (CH 2 -C-CH 2)m | R 1其中R是含有苯基的二价或更多价基团,R 1是氢,甲基或乙基,m和n各自是1-8的整数,并且任选地是普通的热固性 环氧树脂和基于所述树脂加成产物的重量的0.01至10重量%的碱性杂环形成催化剂,所述异氰酸酯化合物和所述环氧苯酚化合物混合,使得所述OH基团可以以1/3的量存在 至每当量所述异氰酸酯基团为1当量,并且所述环氧基团可以以每当量所述异氰酸酯基团的五分之一至三分之二当量的量存在。 所述加成产物可以转化成稳定的B阶段,并且特别可用作预浸料的清漆。