Patent ID: 7914893
Filing Date: 2011-03-29
Classification: A61K,A61Q,B82Y,C01P,C09C,Y10T

Abstract:
1. A particle comprising a substrate and coated thereon an anion-binding layer which comprises one or more anion-forming organic active compounds, wherein at least one of the one or more anion-forming organic active compounds is not an anionic or anion-forming dye, wherein one or more transparent, semitransparent and/or opaque layers of metal oxides, metal oxide hydrates, metal suboxides, metals, metal fluorides, metal nitrides, metal oxynitrides or a mixture thereof has been applied to the substrate beneath the anion-binding layer, or wherein the substrate is flake-form shaped and is selected from the group consisting of glass flakes, SiO wherein the substrate is flake-form shaped and has a diameter of 5 to 200 μm, an average thickness of 0.05 to 10 μm, and an average aspect ratio of 5 to 750.