Anodic electrophoretic paint, its manufacture and use, use of microplate-like metal pigments, and coated articles

摘要

The invention relates to an anodic electrophoretic paint comprising at least one binding agent for anodic electrophoretic paint and an aqueous liquid medium, which anodic electrophoretic paint additionally contains at least one platelet-type metal pigment coated with a coating composition, wherein (a) the platelet-type metal pigment has a dSUB50 /SUBvalue of the cumulative size distribution curve of from 4 to 35 mum and is selected from the group consisting of leafing metal pigments, metal pigments coated with synthetic resin(s), and mixtures thereof, and (b) the coating composition is a coating composition having an organic backbone containing at least 10 carbons and possessing one or more functional groups for effecting adhesion or binding to the pigment surface, wherein the functional group is selected from the group consisting of phosphonic acids, phosphonates, phosphoric acids, phosphate esters, sulfonates, polyalcohols, and mixtures thereof, and (c) the coating composition exhibits acidic properties. The invention relates to a process for the production of the electrophoretic paint and to uses thereof.