Gold-coloured effect pigments having high chroma and high brilliancy, method for the production and use thereof

US10947391B2 · kind B2 · utility

Assignee

• ECKART GmbH · DE

Inventors

• Michael Grüner · Zwingenberg, DE
• Günter Kaupp · Jessenitz Siedlung, DE
• Ralph Schneider · Achern, DE

Key dates

• Filing date: Dec 21, 2015
• Grant date: Mar 16, 2021
• Expiry date: Dec 21, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09C2220/106
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to gold-colored effect pigment including a nonmetallic substrate in platelet form and a coating applied thereto, wherein the coating includes at least one spacer layer. The invention further relates to a process for production of and to the use of the gold-colored effect pigment.