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    • 31. 发明授权
    • Polymer modified polyphenol compositions and thermosettable resins
thereof
    • 聚合物改性多酚组合物及其热固性树脂
    • US4629764A
    • 1986-12-16
    • US843523
    • 1986-03-24
    • Robert E. Hefner, Jr.
    • Robert E. Hefner, Jr.
    • C08G59/02C08G59/06C08F8/00
    • C08G59/063C08G59/02
    • A composition comprising (A) a polyphenol such as bisphenol A, (B) a polymer resulting from polymerizing (1) an alkenyl phenol such as p-isopropenylphenol and (2) a polymerizable ethylenically unsaturated monomer such as 2-ethylhexyl acrylate can be converted to a copolymer modified polycyanate by reaction with a cyanogen halide such as cyanogen chloride in the presence of a base such as triethylamine. These polycyanates can be cured by trimerization in the presence of a suitable catalyst or by copolymerization with an epoxy resin. Epoxy resins can also be prepared from the composition comprising components (A) and (B) by reaction with an epihalohydrin such as epichlorohydrin and subsequent dehydrohalogenation with a basic acting compound such as a sodium hydroxide.
    • 包含(A)多酚如双酚A的组合物,(B)聚合产生的聚合物(1)链烯基苯酚如对异丙烯基苯酚和(2)可聚合烯属不饱和单体如丙烯酸2-乙基己酯可以转化 通过在诸如三乙胺的碱的存在下与卤化氰如氯化氰反应而与共聚物改性的聚氰酸酯反应。 这些聚氰化物可以在合适的催化剂存在下通过三聚化或通过与环氧树脂共聚来固化。 环氧树脂也可以通过与表卤代醇如表氯醇反应,然后与碱性作用化合物如氢氧化钠进行脱卤化氢,由包含组分(A)和(B)的组合物制备。