| abstract |
The present invention relates to an aqueous dispersion (P) of at least two polymer resins (P1) and (P2) different from each other, wherein (P1) is the presence of at least one polyurethane resin having a polymerizable carbon double bond A copolymer obtainable by copolymerizing ethylenically unsaturated monomers under (P2) is a polyester having a functional hydroxyl group and having an acid value of <25 mg KOH per gram of polyester Yes, (P) relates to an aqueous dispersion (P) obtainable by a process comprising at least four steps (1), (2), (3) and (4). The present invention also provides an aqueous coating composition comprising an aqueous dispersion (P), at least one substrate metal surface coated with at least one primer coat, at least partially with a topcoat using the aqueous coating composition. It relates to a method of coating, as well as an at least partly coated substrate obtainable by such a method. |