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US 7,485,183 B2Granted
Pigment mixture, and the use thereof in cosmetics and in the foods and pharmaceuticals sector
AssigneeMerck Patent GmbH
InventorsVeronika Hochstein, Sabine Schoen
Life of this patent
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Abstract
Pigment mixtures which have at least two components, where component A comprises effect pigments based on glass flakes and component B comprises flake-form, needle-shaped, spherical or crystalline colorants or fillers, and to the use thereof, in particular in cosmetic formulations and for the coloring or as a coating of products in the foods and pharmaceuticals sector are described.
Claims14
A composition comprising:
- a component A which comprises one or more effect pigments based on glass flakes having one of the following layer structures:
- glass flake+TiO2 layer;
- glass flake+SiO2 layer+TiO2 layer;
- glass flake+Fe2O3 layer;
- glass flake+SiO2 layer+Fe2O3 layer;
- glass flake+Fe3O4 layer;
- glass flake+SiO2 layer+Fe3O4 layer;
- glass flake+TiFe2O3 layer;
- glass flake+SiO2 layer+TiFe2O3 layer;
- glass flake+Cr2O3 layer;
- glass flake+SiO2 layer+Cr2O3 layer;
- glass flake+TiO2 layer+Cr2O3 layer;
- glass flake+SiO2 layer+TiO2 layer+Cr2O3 layer;
- glass flake+titanium suboxide;
- glass flake+SiO2 layer+titanium suboxide;
- glass flake+TiO2 layer+Fe2O3 layer;
- glass flake+SiO2 layer+TiO2 layer+Fe2O3 layer;
- glass flake+TiO2 layer+Berlin Blue;
- glass flake+SiO2 layer+TiO2 layer+Prussian Blue;
- glass flake+TiO2 layer+Carmine Red;
- glass flake+SiO2 layer+TiO2 layer+Carmine Red;
- glass flake+TiO2 layer+DC Red 30;
- or
- glass flake+SiO2 layer+TiO2 layer+DC Red 30;
- wherein the glass flake has a layer thickness of ≦1 μm, and the TiO2 layers are in the anatase or rutile modification;
- and a component B which comprises one or more organic and inorganic flake-form, needle-shaped, spherical or crystalline colorants and/or fillers, provided that at least one colorant or filler of component B is different from at least one effect pigment of component A;
- and a cosmetic active ingredient.
24 more elements
Dependencies are inferred from the claim text.