with a protective coating on the metallic layer

Full Title

Compositional and structural details of pigments exhibiting interference colours > Interference pigments characterized by the core material > the core consisting of an inorganic suboxide or a mixture thereof, e.g. SiOx or TiOx > comprising at least one metal layer adjacent to core material, e.g. core-M or M-core-M > with a protective coating on the metallic layer