Solvent-poor sol-gel-systems

US7247350B2 · kind B2 · utility

Assignee

• NANO-X · JP

Inventors

• Stefan Sepeur · Saarburg, DE
• Nora Kunze · Saarburg, DE
• Michael Kihm · Saarburg, DE

Key dates

• Filing date: Dec 20, 2001
• Grant date: Jul 24, 2007
• Expiry date: Dec 20, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31663
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a method for the production of low solvent sol-gel systems, comprising the following steps: (a) hydrolysis or condensation of a silane and/or an alkoxide and/or several alkoxides of Al, Ce, Ga, Ge, Sn, Ti, Zr, Hf, V, Nb and Ta, (b) addition of water to the reaction mixture until phase separation sets in, and (c) separation of the condensate phase. The invention also relates to the sol-gel system thus obtained and to the use thereof.