Mesoporous silica, its preparation and its use

US5951962A · kind A · utility

Assignee

• BASF SE

Inventors

• Ulrich Müller · Neustadt, DE
• Bernd Reck · Arnstadt, DE
• Joachim Roser · Dessel, BE

Key dates

• Filing date: Sep 23, 1997
• Grant date: Sep 14, 1999
• Expiry date: Sep 23, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/14
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Mesoporous silica has a specific surface area of the mesopores of at least 500 m.sup.2 /g and a volume of the mesopores of at least 1.0 ml/g and is prepared by converting a silica precursor in a water-containing reaction medium, the reaction medium containing a polymer dispersion.