Hydrolytic preparation of titanium dioxide pigments

US6074472A · kind A · utility

Assignee

• BASF SE

Inventors

• Harald Jachow · Worms, DE
• Ekkehard Schwab · Neustadt, DE
• Claudius Kormann · Schifferstadt, DE
• Wilma M. Dausch · Schifferstadt, DE
• Karin Sperling · Neustadt, DE
• Horst Westenfelder · Neustadt, DE

Key dates

• Filing date: Feb 12, 1998
• Grant date: Jun 13, 2000
• Expiry date: Feb 12, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/60
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Titanium dioxide pigments are obtainable by complete hydrolysis of a hydrolyzable titanium compound at from 0 to 100.degree. C. with intensive stirring and with setting of a pH in the range from 3 to 8 and maintenance of this pH within a range of 0.3 units. PA0 The titanium dioxide pigments can be employed for the production of cosmetic preparations and medicaments.