| abstract |
Humidity-resistant bluish luster pigments Humidity-resistant bluish luster pigments based on titania-coated silicatic platelets heated in a reducing atmosphere are obtainable by reaction of the reduced platelets with a silane of the general formula I RaSiXb where: I R is a C1-C10-alkyl radical with substituted in the .omega.-position by a glycidoxy group, by an amino group, by a hydroxyl group or by a monoalkylamino group or an alkoxy radical whose alkyl chains may each contain up to 10 carbon atoms and may be interrupted by from 1 to 5 ether oxygen atoms or imino groups, the radicals R for a > 1 being identical or different; X is C1-C4-alkoxy; a is 1 or 2; and b is 2 or 3, subject to the proviso that a + b = 4. |