Process for the preparation of iron oxide yellow pigments and the use thereof

US5916360A · 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: Dec 9, 1997
• Grant date: Jun 29, 1999
• Expiry date: Dec 9, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2002/70
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for the preparation of iron oxide yellow pigments by the process of precipitation from iron(II) chloride and from an alkaline component as well as the use thereof.