Pearlescent pigments
AssigneeMerck Paptentgesellschaft Mit Beschrankter Haftung
InventorsStephane Bertaux, Peter Reynders, Jens-Uwe Wichmann, Eberhard Schweda
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Abstract
The present invention relates to pearlescent pigments based on substrates coated with one or more layers of nitrides or oxynitrides to a method for the production of such pigments and their use in plastics, paints, coatings, powder coatings, inks, printing inks, glasses, ceramic products, agriculture foils, for lasermarking of papers and plastics, security applications and in cosmetic formulations.
Claims15
A pearlescent pigment comprising a substrate and one or more layers wherein at least one layer is selectively light absorbing and comprises a nitride and/or oxynitride with the proviso that the pigment does not contain a layer of titanium nitride or titanium oxynitride.
Dependencies are inferred from the claim text.