Patent ID: 8784556

Claim:
An angle-dependent interference pigment based on transparent or translucent inorganic flake serving as a substrate, the substrate being coated by at least one layer packet comprising in sequence by: (A) a coating having high refractive index, (B) a colorless coating having a refractive index n≦1.8, (C) a coating having high refractive index, and optionally, (D) an outer protective layer; wherein the coating (B) is always between coating (A) and coating (C) so as to form a “high-low-high” refractive index layered structure, the “high-low-high” refractive index layered structure having an odd number of layers with the odd number being 3 or more; the coatings (A) and (C) consisting of metal oxides and silicate, and the silicate has its highest content at the interface between the coating with high refractive index and the coating with low refractive index and less content far from the interface; the coating (B) consisting of silicon oxide, hydrous silicon oxide, aluminum oxide, hydrous aluminum oxide, magnesium oxide, hydrous magnesium oxide and/or a mixture thereof.