PVD metal effect pigment having gradient on nanoscale metal particles, method for the production thereof and use thereof

US8864899B2 · kind B2 · utility

Assignee

• ECKART GmbH · DE

Inventors

• Bernhard Geissler · Schwarzenbruck, DE
• Wolfgang Herzing · Neunkirchen, DE
• Frank Henglein · Nuremberg, DE
• Ralph Schneider · Achern, DE
• Martin Fischer · Ludwigshafen, DE

Key dates

• Filing date: Jan 28, 2010
• Grant date: Oct 21, 2014
• Expiry date: Nov 12, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09C2220/20
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A platelet-shaped PVD metallic effect pigment having first and second outer faces, the platelet-shaped PVD metallic effect pigment having at least one PVD layer, the at least one PVD layer including elemental metal with clusters of elemental metal and metal oxide. The amounts of elemental metal in the first outer face and in the second outer face of the PVD metallic effect pigment are different from one another and they differ by at least 10 atom %. The disclosure further relates to a method for producing these platelet-shaped PVD metallic effect pigments, and to their use.