Preparation and use of iron oxide black pigment granules

US5718755A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Berndt-Ullrich Kohler · Krefeld, DE
• Manfred Eitel · Kempen, DE
• Gunter Linde · Krefeld, DE
• Herbert Kunstmann · Krefeld, DE

Key dates

• Filing date: Dec 10, 1996
• Grant date: Feb 17, 1998
• Expiry date: Dec 10, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/64
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for the preparation of iron oxide black pigment granules which are stable to handling.