Vandig bindemiddelkombination baseret på polyaminer, fremgangsmåde til dens fremstilling og dens anvendelse i malinger og belægninger

摘要

Polyamines (I), obtained by reaction of (a) special unsaturated oligo-esters with 2-4 double bonds per molecule on average, (b) optionally other unsaturated compounds with 1-4 double bonds which can act as Michael acceptors, (c) (cyclo)aliphatic diamines with two prim. amino groups and (d) optionally other amino compounds which can act as Michael donors; these polyamines are then dissolved or dispersed in water or diluted with water (optionally after neutralisation with carboxylic acid). Also claimed are aqueous binder combinations containing (I) and water-dispersible polyisocyanates with free isocyanate (NCO) groups.