Plate-shaped effect pigment comprising a copper-containing coating, method for the production thereof, and use thereof

摘要

The present invention relates to an effect pigment comprising a plate-shaped non-metallic substrate and at least one copper-containing coating, wherein the average particle size D50 of the effect pigment is more than 5 μm and the copper content of the effect pigment is in a range from 3 to 70 wt.-%, relative to the total weight of the effect pigment. The invention furthermore relates to a method for producing the latter and use of the effect pigment in anti-fouling coatings.

主权项

1. An effect pigment comprising a plate-shaped non-metallic substrate and at least one copper-containing coating,
wherein the average particle size D50 of the effect pigment is more than 5 μm and the copper content of the effect pigment is in a range of from 3 to 70 wt.-%, relative to the total weight of the effect pigment, and wherein the specific copper surface area of the effect pigment, defined as the quotient of copper content [wt.-%] and specific surface area according to BET [m2/g],copper⁢⁢content⁡[wt.-%]BET⁡[m2g]is smaller than 60 wt.-%·g·m−2.