Iron oxide red pigments, process for the production of iron oxide red pigments and use thereof

US6179908A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Rolf Braun · Offenbach, DE
• Eckhard Bayer · Krefeld, DE
• Ulrich Meisen · Kall, DE

Key dates

• Filing date: Oct 15, 1998
• Grant date: Jan 30, 2001
• Expiry date: Oct 15, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/80
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to iron oxide red pigments, a process for the production of iron oxide red pigments by calcining iron oxide yellow pigments or iron oxide black pigments, and the use thereof.