Epoxy resin compositions.

摘要

Epoxy resin compositions showing increased strength properties can be obtained by reacting a vicinal polyepoxide having an epoxy equivalence of 1.8 or more with an amine-terminated curing agent, which is prepared by aminating a modified polyol produced by reaction of i. a diol, ii. one or more alkylene oxides, and iii. an intermediate epoxy resin in proportions such that the ratio of equivalents of hydroxyl functionality to intermediate epoxy resin is at least 2 to 1, and in such a manner that the intermediate epoxy resin is added internally along the length of the polyol chain to give a modified polyol having a molecular weight of 2000 to 5000.