| abstract |
An aqueous binder combination consisting essentially of an aqueous solution or dispersion of at least one water-thinnable, sulfonate and hydroxyl group-containing polyester resin, which may optionally contain polyhydric alcohols of less than 500 molecular weight as reactive diluents and a polyisocyanate component present emulsified in this solution or dispersion, a process for Preparation of coating compositions in which an aqueous solution or dispersion of a polyester resin containing sulfonate groups, optionally containing a reactive diluent, is incorporated with a polyisocyanate component which is liquid at room temperature while maintaining an NCO / OH equivalent ratio of 0.5: 1 to 5: 1, where any auxiliary substances and additives used in the solution or dispersion are incorporated before the addition of the polyisocyanate component, and the use of the binders according to the invention combinations as binders for paints, coatings or sealants. |