WATER BASED COATING MATERIAL, METHODS FOR PRODUCING A MULTIPLE COATING PAINTING SYSTEM FOR A MULTIPLE COATING PAINTING SYSTEM, AND MULTIPLE COATING PAINTING SYSTEMS

摘要

The present invention relates to an aqueous based coating material comprising at least one aqueous polyurethane-polyurea (pd) dispersion comprising polyurethane-polyurea particles contained in the dispersion with an average size of 40 to 2,000 nm and a gel fraction. at least 50% and at least one aqueous dispersion (wd) comprising a polymer prepared by successive radical emulsion polymerization of three different mixtures (a), (b) and (c) of olefinically unsaturated monomers. The present invention also relates to multi-coat paint systems produced using the base coat materials.