本发明涉及一种涂料粘合剂和它们的用途。 含有这种漆的粘合剂，基于一个叔氨基基团和封端的异氰酸酯共聚物，该共聚物是水溶性的或水分散性通过至少部分成盐用酸，其中所述共聚物为含有叔氨基，一用一CH-，OH-或烯属不饱和化合物 NH-酸性封端剂封端的ñ - 异氰酸酯（1-烯基），另外的烯属不饱和化合物和含有共聚形式的异氰酸酯 - 反应性氢原子并且具有的平均分子量1000-20000任选的一种或多种可共聚的烯属不饱和化合物。 这些涂料的粘合剂被用于金属物体的阴极电沉积涂料。

The invention relates to coating binders and to their use. These paint binders containing, based on a tertiary amino groups and blocked isocyanate copolymer which is water soluble or water-dispersible by at least partial salt formation with an acid, wherein the copolymer has an olefinically unsaturated compound containing a tertiary amino group, one with a CH-, OH- or NH-acidic blocking agent capped N (1-alkenyl) isocyanate, a further olefinically unsaturated compound, and optionally contains polymerized units one or more copolymerizable olefinically unsaturated compounds containing isocyanate-reactive hydrogen atoms and having an average molecular weight between 1000 and 20,000. These paint binders are used for the cathodic electrocoating of metallic articles.