Boron oxide-silicon dioxide mixed oxide

US6242373A · kind A · utility

Assignee

• Degussa-Huels AG · DE

Inventors

• Helmut Mangold · Rodenbach, DE
• Manfred Ettlinger · Karlstein, DE
• Dieter Kerner · Midland Park, US
• Peter Kleinschmit · Hanau, DE

Key dates

• Filing date: Apr 3, 2000
• Grant date: Jun 5, 2001
• Expiry date: Apr 3, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/12
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A boron oxide-silicon dioxide mixed oxide which has a BET surface of less than 100 m.sup.2 g, and optionally containing oxides of aluminium, titanium or zirconium, is prepared pyrogenically by flame hydrolysis. The mixed oxide is used in glass making.