US 5,344,486 A · Platelet-like pigments

Abstract

The invention relates to pigments based on platelet-like substrates substantially composed of nitridic material and coated with at least one dye and/or one metal oxide, and to processes for their preparation and also to their use in cosmetic preparations.

Claims13

Dependent claims

A pigment comprising a platelet-shaped substrate which is a metal nitride, having coated on the surface thereof at least one dye, at least one metal oxide or a mixture thereof.

Dependencies are inferred from the claim text.

Facts

Application

08/013,840Filed 5 Feb 1993

Priority

DE 42035017 Feb 1992

Granted

6 Sep 1994

Term ends

Not estimatedThe source records don’t support an estimate.

Classification23 codes

A61K 8/0216
Characterised by special physical form: solid or semisolid forms
A61K 8/0254
Containing particulates characterized by their shape and/or structure: platelets; Flakes
A61K 8/19
Characterised by the composition: containing inorganic ingredients
A61Q 1/02
Make-up preparations; Body powders; Preparations for removing make-up: preparations containing skin colorants, e.g. pigments

Platelet-like pigments

Life of this patent

Abstract

Claims13

Platelet-like pigments

Life of this patent

Abstract

Claims13