Patent ID: 6599355
Filing Date: 2003-07-29
Classification: C01P,C08K,C09C,C09D

Abstract:
Intensely coloured interference pigments based on multicoated platelet-shaped substrates which comprise at least one layer sequence comprising(A) a high-refractive-index coating consisting of a mixture of TiO2 and Fe2O3 in a ratio of from 1:0.1 to 1:5, and optionally one or more mental oxides in amounts of &lE;20% by weight, based on the layer (A), (B) a colourless coating having a refractive index n of &lE;1.8, (C) a colourless coating having a refractive index n of >1.8, (D) an absorbent coating having a refractive index of n of >1.8 and optionally (E) an outer protective layer.