Iron oxide and silicon dioxide-titanium dioxide mixed oxide

US6773697B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Ina Hemme · Hanau, DE
• Herbert Habermann · Bad Orb, DE
• Steffen Hasenzahl · Hanau, DE

Key dates

• Filing date: Dec 9, 2002
• Grant date: Aug 10, 2004
• Expiry date: Dec 9, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K3/22
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Iron oxide-silicon dioxide-titanium dioxide mixed oxide is produced by burning vaporizable compounds of iron, silicon and titanium together in a hydrogen/oxygen flame. The mixed oxides may be used as UV absorbers in cosmetics.