Organopolysiloxane polyethers and their use as hydrolysis-resistant wetting agents in aqueous systems

US5401871A · kind A · utility

Assignee

• Th. Goldschmidt. AG · DE

Inventors

• Georg Feldmann-Krane · Mülheim, DE
• Werner Hohner · Velbert, DE
• Dietmar Schaefer · Hattingen, DE
• Stefan Silber · Krefeld, DE

Key dates

• Filing date: Feb 24, 1994
• Grant date: Mar 28, 1995
• Expiry date: Feb 24, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S516/01
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Organopolysiloxane polyethers with increased resistance to hydrolysis are prepared. Furthermore, a method of rendering an aqueous system hydrolysis-resistant and exhibiting increased wetting property utilizing such polysiloxane polyethers as wetting agents in aqueous systems is described. Aqueous coating systems containing such polyethers exhibit increased wetting property and are resistant to alkaline and acidic hydrolysis.