| abstract |
The present invention relates to a weather-stable pearlescent pigment consisting of a platelet-shaped substrate coated with one or more high refractive index metal oxide (s) selected from the group consisting of synthetic mica platelets, glass flakes, SiO 2 flakes, Al 2 O 3 flakes, synthetic boehmite flakes , BiOCl platelets and mixtures thereof, is selected and a cover layer, wherein the cover layer consists of the following layers: a) a cerium-containing layer which consists of cerium oxide and / or cerium hydroxide and / or ceria hydrate and the cerium-containing layer b) an organic-chemical compatibilizing layer which contains or consists of the reaction products of oligomeric silanes, the oligomeric silanes having one or more amino groups and the organic-chemical compatibilizing layer directly on the cerium-containing layer a ) is applied, a process for their preparation and their use. |