Patent ID: 7034072

Claim:
An aqueous coating composition comprising, (a) 10 to 60 wt % of an aqueous dispersion comprising water and at least one water-dilutable binders selected from the group consisting of polymethacrylic, polyacrylic, polyester, polyurethane, with linear, branched or star structures, hybrid polyacrylic/polyester or polyacrylic/polyurethane, epoxy modified binders, and mixtures thereof, the amount of said water constituting at least 15 wt % based on the total weight of said component, (b) 5 to 40 wt % of at least one water-dispersible polyisocyanates or mixtures of water-dispersible and water-emulsifiable polyisocyanates, blocked or unblocked, (c) 5 to 70 wt % of filler material, (d) 2 to 30 wt % of a ground polymer material, comprising polymethyl methacrylate containing filler, which is different from component (c), (e) 0 to 15 wt % of organic co-solvents, (f) 0.01 to 15 wt % of additives, pigments and, (g) 3 to 30 wt % of water, wherein said water includes the water in component (a).