Aqueous coating compositions and process for the production of stone impact resistant coatings

摘要

The invention relates to aqueous coating compositions comprising at least one water-dispersible polymer (WP) having at least one functional group (a), preferably at least one crosslinking agent (V) having at least two functional groups (b), which with the functional groups (a) of the water-dispersible polymer (WP) when curing the coating agent to form a covalent bond, and positively charged inorganic particles whose ratio D / d of the average particle diameter (D) to the average particle thickness (d) 50, wherein the charge of the inorganic particles at least partially with Simply charged organic anions (OA) is compensated. Furthermore, the invention relates to a process for the production of impact-resistant OEM layer composites, consisting of a directly applied to the substrate corrosion protection layer, a filler layer and a final topcoat layer, preferably consisting of a basecoat layer and a final clearcoat layer, wherein at least one layer formed from the aforementioned aqueous coating agent becomes.