Flaky colored pigments, methods for their production, and their use in cosmetic compositions
AssigneeMerck Patent GmbH
InventorsTamio Noguchi, Takaji Watanabe
Life of this patent
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Abstract
Colored flaky colored pigments are obtained by uniformly adhering a finely divided color pigment onto a flaky substrate by the use of an high molecular weight organic compound as a binder.
Claims20
Free-flowing colored flaky pigments comprising flaky substrates having a finely divided color pigment material adhered on the surfaces thereof by a high molecular weight organic binder.
A process for the production of a colored flaky pigment comprising admixing (A) a suspension or solution of a color pigment and a high molecular weight organic compound in water and/or an alcohol with (B) a suspension of a flaky substrate in a solution of a high molecular weight organic compound in water and/or alcohol
- whereby said color material is precipitated onto the surface of said substrate and bound thereto by said high molecular weight organic compound.
Dependencies are inferred from the claim text.