Process for producing sol-gel condensates based on polyfunctional organosilanes

US6673458B2 · kind B2 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Michael Mager · Leverkusen, DE
• Markus Mechtel · Neunburg vorm Wald, DE
• Harald Kraus · Leverkusen, DE
• Nusret Yuva · Wermelskirchen, DE

Key dates

• Filing date: Jan 17, 2002
• Grant date: Jan 6, 2004
• Expiry date: Jan 17, 2022

Classification

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

Abstract

The present invention relates to a process for producing sol-gel condensates byA1) reacting an aqueous silica sol with a silicon alkoxide and subsequentlyA2) converting the condensate obtained from A1) with a polyfunctional organosilane.