Effect pigments on the basis of mica flakes

摘要

Effect pigments exhibiting a synthetic mica panels in which 90% of the particle with an equivalent distribution of 2-40 mu m, and a thickness distribution of 100-3500 nm and a coating by a refractive index >=1.9 containing titanium dioxide and zinc oxide and/or one or more heavily soluble alkaline-earth compound. Independent claims are included for: (1) a formulations comprising one or more effect pigments; (2) a production of the effect pigment comprising coating the synthetic mica panel wet chemical via hydrolytic decomposition of metal salts in aqueous medium; (3) a pigment preparation comprising one or more binder, optionally one or more additives and the effect pigment; and (4) drying preparations comprising the effect pigments.