High-surface precipitation silica acids

US7790131B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Oleg Stenzel
• Stefan Uhrlandt · Niederkassel, DE
• Hans-Detlef Luginsland · Recklinghausen, DE
• Andre Wehmeier · Rheine, DE

Key dates

• Filing date: Jul 25, 2003
• Grant date: Sep 7, 2010
• Expiry date: Nov 15, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/90
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a highly dispersible silica which has a high surface area, a process to manufacture the aforesaid silica and its use as a tire filler for utility vehicles, motor cycles and high speed vehicles.