Patent ID: 9624378
Date: 2017-04-18
CPC Classifications: C01P,C09C,C09D

Claim:
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.