Precipitated silicas with a particular pore size distribution

US7566433B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Oleg Stenzel
• Anke Blume · Lechenich, DE
• Hans-Detlef Luginsland · Recklinghausen, DE
• Ralf Schmoll · Gerolzhofen, DE
• Herbert Thoma · Rheinbach, DE
• Stefan Uhrlandt · Niederkassel, DE
• Andre Wehmeier · Rheine, DE

Key dates

• Filing date: Sep 8, 2006
• Grant date: Jul 28, 2009
• Expiry date: Aug 3, 2027

Classification

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

Abstract

Precipitated silicas which have a broad pore size distribution of the pores with a pore diameter smaller than that of the maximum of the derivative of the pore volume distribution function are useful, for example, for tires.