METHOD FOR PRODUCING MULTILAYER PAINT COATINGS ON ELECTRICALLY CONDUCTIVE SUBSTRATES

摘要

The invention relates to a method for producing multilayer paint coatings according to which: (I) an electrophoretic paint that can be cathodically deposited is deposited on an electrically conductive substrate; (II) at least one coating material is applied to the resulting electrophoretic paint coat; (III) the electrophoretic paint coat and the at least one coat consisting of the coating material are subsequently hardened together. The electrophoretic paint contains an aqueous dispersion and can be produced by polymerizing at least one ethylenically unsaturated monomer in an aqueous solution of a protonized epoxy amine adduct, whereby the epoxy amine adduct can be obtained by reacting: (A) at least one glycidyl ether of a polyphenol which, in the statistical mean, contains at least one epoxy group in the molecule; (B) at least one polyglycidyl ether of a polyol which, in the statistical mean, contains more than one epoxy group in the molecule, and; (C) at least one compound which contains a primary amino group in the molecule, in order to form the epoxy amine adduct.