Fumed silanized and ground silica

US8163080B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Juergen Meyer · Taunusstein, DE
• Kurt Spitznagel · Hanau, DE
• Guenther Michael · Karlstein, DE
• Tina Gross · Bad Bederkesa, DE

Key dates

• Filing date: May 6, 2008
• Grant date: Apr 24, 2012
• Expiry date: May 31, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2982
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a hydrophobic fumed silica which is obtained by grinding a fumed silica which, as a result of silanization, has trimethylsilyl groups fixed on the surface; and to coating formulations comprising this silica.