Patent ID: 9260584
Filing Date: 2016-02-16
CPC Classification: A61K,A61Q,C01P,C08K,C08L,C09C,C09D

Claim Text:
1. A coated wet-chemically oxidized aluminum effect pigment comprising: at least one metal oxide layer comprising at least one metal oxide which differs from aluminum oxide; and at least one enveloping organic polymer layer, wherein the weight ratio of the metal oxide of the at least one metal oxide layer to aluminum oxide in a wet-chemically produced aluminum oxide layer of uncoated wet-chemically oxidized aluminum effect pigment is in a range of from 1:1 to 1:40, and wherein the weight proportion of the at least one organic polymer layer is in a range of from 8 to 40 weight percent, relative to the weight of the uncoated, wet-chemically oxidized aluminum effect pigment.