Functionalized silicas

US6809149B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Jurgen Meyer · Aschaffenburg, DE
• Manfred Ettlinger · Karlstein, DE
• Stephanie Frahn · Waldmohr, DE
• Dieter Kerner · Midland Park, US

Key dates

• Filing date: Oct 19, 2001
• Grant date: Oct 26, 2004
• Expiry date: Mar 26, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K3/36
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Functionalized silicas with 3-methacryloxypropylsilyl and/or glycidyloxypropylsilyl groups on the surface are prepared by mixing the silicas with the silane and heat-treating the mixture. The silicas are employed, for example, in solvent-containing coatings.