| abstract |
Storage-stable polyurethane dispersions which can be prepared by reacting polydienes A which carry at least two groups reactive with isocyanates, polyols B which carry at least one acid group, polyfunctional isocyanates C and chain extenders D , characterized in that the acid groups of the polyols B in a proportion of 60 to 95% are neutralized, processes for their preparation and their use for the production of elastic coatings. |