Iron oxide pigments

US7387671B2 · kind B2 · utility

Assignee

• LANXESS Deutschland GmbH · DE

Inventors

• Ulrich Meisen · Kall, DE
• Leslaw Mleczko · Bochum, DE

Key dates

• Filing date: Mar 4, 2004
• Grant date: Jun 17, 2008
• Expiry date: Mar 20, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/12
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Iron Oxide pigment containing greater than 99% iron oxide, having a chloride content of less than 0.1% and a mean solid diameter of 10 to 500 μm and methods of making the same are disclosed.