Multilayered interference pigments

摘要

PCT No. PCT/EP97/04850 Sec. 371 Date Apr. 17, 1998 Sec. 102(e) Date Apr. 17, 1998 PCT Filed Sep. 6, 1997 PCT Pub. No. WO98/12266 PCT Pub. Date Mar. 26, 1998Multilayer interference pigments consisting of a transparent carrier material coated with alternating layers of metal oxides of low and high refractive index, the layers of the metal oxides of low refractive index being optically inactive. The thickness of the metal oxide layers of high refractive index is an integral multiple of the optical thickness which is necessary for the desired interference color. The layer thickness of metal oxide layers of low refractive index is from 1 to 20 nm.