Hydrophilic foams and processes for their manufacture

US5336695A · kind A · utility

Assignee

• BEIERSDORF AG · DE

Inventors

• Martina Nass · Hamburg, DE
• Heidi Sacker · Hamburg, DE

Key dates

• Filing date: Oct 4, 1993
• Grant date: Aug 9, 1994
• Expiry date: Oct 4, 2013

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31551
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Hydrophilic foams based on a polyurethane gel material which can be obtained from PA1 one or more polyether-polyols selected from the group comprising substances formed by the addition of propylene oxide and optionally ethylene oxide on to conventional starter molecules, PA1 one or more diisocyanates, PA1 one or more superabsorbers, PA1 one or more accelerators selected from the group comprising conventional accelerators for polyurethanes, PA1 water, and optionally PA1 conventional auxiliary substances and/or additives.