Pigment mixture

US6488756B1 · kind B1 · utility

Assignee

• Merck Patentgesellschaft · DE

Inventors

• Sabine Schoen · Darmstadt, DE
• Reiner Vogt · Darmstadt, DE
• Norbert Schül · Heppenheim, DE
• Karl Osterried · Dieburg, DE
• Uta Maurer · Darmstadt, DE

Key dates

• Filing date: May 28, 1999
• Grant date: Dec 3, 2002
• Expiry date: May 28, 2019

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/651
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The present invention relates to pigment mixtures consisting of at least two components, component A being SiO2 flakes coated with one or more metal oxides and/or metals and component B being platelet-shaped, acicular or spherical colorants or fillers, and to their use in particular in varnishes, paints, printing inks, powder coating materials, plastics and cosmetic formulations.