Coated metal pigments, method for the production and use thereof, coating agent and article

摘要

The present invention concerns coated metal pigments, the production thereof, and the use thereof. The present invention also concerns coating agents containing the aforementioned metal pigments, as well as objects coated with such coating agents.

主权项

1. A metal pigment comprising a metallic substrate and coating,
wherein the coating comprises at least one first coating layer surrounding the metal pigment comprising at least one metal oxide, and at least one second coating layer a comprising at least one heteropolysiloxane, wherein the term metal oxide comprises at least one of metal oxides, metal oxide hydrates, metal hydroxides, and mixtures thereof, wherein the at least one heteropolysiloxane is prepared from components comprising at least one aminosilane component and at least one silane component selected from the group consisting of alkylsilanes, vinylsilanes, arylsilanes and mixtures thereof, wherein the heteropolysiloxane is applied in precondensed form to the at least one first surrounding coating layer, and wherein the heteropolysiloxane is the outermost coating layer of the metal pigment.