Pigment with a metallic luster

US6997982B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Gerhard Pfaff · Mainburg, DE
• Stephanie Andes · Hanau, DE
• Michael Uhlig · Darmstadt, DE

Key dates

• Filing date: Sep 27, 2002
• Grant date: Feb 14, 2006
• Expiry date: Sep 27, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2004/88
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a pigment with a metallic luster, comprising a plate-like non-metallic substrate having a thickness lower an 200 nm, which is entirely coated with a metallic layer.