This invention relates to products H made by reaction of a cyclic alkyleneurea U, at least one multifunctional aldehyde A2, and at least one of (a) an aminoplast former M that is not the same as the cyclic alkyleneurea U, and (b) a monofunctional aldehyde A1, which product H is optionally etherified by reaction of at least a part of the hydroxyl groups formed by addition reaction of N—H groups and aldehyde groups, with an alcohol having from one to ten carbon atoms, and wherein glyoxal is present in the at least one multifunctional aldehyde A2, to processes for their preparation, and to a method of use thereof in coating compositions.
本发明涉及由环亚烷基
脲 U、至少一种多功能醛 A2 和 (a) 与环亚烷基
脲 U 不同的
氨基原基 M 和 (b) 单功能醛 A1 中的至少一种反应制得的产品 H、其中产物 H 可选择通过 N-H 基团和醛基团加成反应形成的至少部分羟基与具有 1 至 10 个碳原子的醇反应而被醚化,其中
乙二醛存在于至少一种多功能醛 A2 中,以及它们的制备工艺和在涂料组合物中的使用方法。