| 摘要 |
<p>Hardeners for water-based epoxy resin systems, obtained by reacting a mixture of epoxides and bisphenol to form an intermediate (Z1), reacting Z1 with a polyamine to form a second intermediate (Z2) and then reacting Z2 with a carbonyl compound. Hardeners (H) for water-based epoxy resin systems, obtained by reacting a mixture of (A) epoxidised polyalkylene oxide(s) (polyethylene, polypropylene or polyethylene-propylene oxide), (B) epoxidised phenol(s) (Bisphenol A or F epoxide) and (C) phenolic compound(s) (Bisphenol A or F), reacting the resulting intermediate (Z1) with a polyamine (E) to form a second intermediate (Z2) and then reacting Z2 with carbonyl compound(s) (F) of formula R 1>R 2>C=O (I) so that 1-99% of the prim. amino groups in Z2 undergo reaction. R 1>, R 2>H, 1-22C alkyl (linear or branched), phenyl, OH or OR 3>; R 3>1-22C alkyl (saturated or unsaturated, linear or branched) Independent claims are included for (1) a method for the production of clearcoats, coating materials and the like by reacting (H) in aqueous media with epoxide compounds (2) hardened materials obtained by this method.</p> |
