Colored micaceous pigments
AssigneeThe Mearl Corporation
InventorLouis Armanini
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Abstract
Dispersed insoluble colored pigments are coated on the surface of mica and oxide-coated mica pigments by deposition in a precipitate of a polyvalent cation and an anionic polymeric substance. The resulting combination pigments have more than one color, depending on the angle of viewing.
Claims21
A colored micaceous pigment comprising micaceous platelets coated with a layer comprising hydrous oxide or hydroxide of a polyvalent cation, precipitate of said polyvalent cation and an anionic polymeric substance, and water-insoluble colored pigment, the percentages of said cation, substance and pigment based on the weight of said micaceous pigment being 0.01-20, 0.01-20, and 0.01-30, respectively.
Dependencies are inferred from the claim text.