Surface-modified, aerogel-type structured silica

US7402293B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Jurgen Meyer · Aschaffenburg, DE
• Horst Zeizinger · Hanau, DE
• Manfred Ettlinger · Karlstein, DE
• Hans-Dieter Christian · Alzenau, DE

Key dates

• Filing date: Dec 11, 2003
• Grant date: Jul 22, 2008
• Expiry date: Dec 19, 2025

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/19
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A surface-modified, aerogel-type, structured silica is produced by spraying an aerogel-type, structured silica with a silanizing agent, post-mixing and conditioning. It can be used as a flatting agent.