Merck Patent Gesellschaft MIT Beschrankter Haftung

Merck Patent Gmbh

Susonity Commercial Gmbh

Tanja Delp

Christoph Schmidt

Sabine Schoen

Johann Dietz

Gerhard Herget

Johann Bauer

The present invention relates to interference pigments based on transparent, low-refractive-index, flake-form substrates which have a high-refractive-index coating consisting of TiOhaving a layer thickness of 20-200 nm and optionally an outer protective layer, and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, button pastes, ceramic materials, glasses, for seed coloring, as dopants in the laser marking of plastics and papers, as additive for the laser welding of plastics, as additive for coloring in the foods and pharmaceuticals sectors, and in cosmetic formulations and for the preparation of pigment compositions and dry preparations.

Interference pigments

The present invention relates to silver pigments based on transparent, low-refractive-index, platelet-shaped substrates which have a high-refractive-index coating consisting of TiOhaving a layer thickness of 5-300 nm and optionally an outer protective layer, and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, button pastes, ceramic materials, glasses, for seed coloring, as dopants in the laser marking of plastics and papers, as additives for coloring in the foods and pharmaceuticals sectors, and in cosmetic formulations and for the preparation of pigment compositions and dry preparations.

Silver pigments

The present invention relates to surface-modified pigments based on platelet-shaped substrates having improved dispersibility and to their preparation and use.

Surface-modified, platelet-shaped pigments having improved dispersibility

Growing community of inventors

Darmstadt, Germany

Tanja Delp