Polymer modified adducts of epoxy resins and active hydrogen containing compounds containing mesogenic moieties
申请人:THE DOW CHEMICAL COMPANY
公开号:EP0469492A2
公开(公告)日:1992-02-05
Polymer modified adducts are prepared by (A) reacting (1) an epoxy resin having an average of more than one vicinal epoxide group with (2) a compound containing an average of two or more hydrogen atoms reactive with an epoxide group; and (B) partially vinylizing reacting the product from step (A); and (C) polymerizing the partially vinylized product from step (B) with (3) a polymerizable ethylenically unsaturated monomer; with the proviso that at least one of the components (1), (2) or (3) contain one or more mesogenic or rodlike moieties. These adducts are useful as epoxy resin curing agents.
聚合物改性加合物的制备方法是:(A)将(1)具有平均一个以上副环氧基团的环氧树脂与(2)含有平均两个或两个以上与环氧基团反应的氢原子的化合物反应;以及(B)将步骤(A)的产物部分乙烯基化;(C) 将步骤(B)的部分乙烯基化产物与(3)可聚合的乙烯基不饱和单体聚合;但条件是组分(1)、(2)或(3)中至少有一种含有一个或多个介原或棒状分子。这些加合物可用作环氧树脂固化剂。