Curing agents for aqueous epoxy resin dispersions

摘要

Curing agents for aqueous epoxy resin dispersions obtained by reaction of an adduct (A) of at least one polyepoxide (A1) and at least one polyalkylene polyether polyol (A2), it being possible for the adduct (A) to be modified with a secondary amine (A3) if appropriate, with I. a reaction product of an amine (B) and an epoxide (C) or II. an amine (B) and subsequent reaction with an epoxide (C), the amount of amine (B) being chosen such that the H atoms on the nitrogen are present in a 2- to 10-fold excess, based on the epoxide groups in (A).