Fixed dressings with greatly reduced foaming

US5047293A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Bernhard Jansen · Cologne, DE
• Hanns P. Muller · Leverkusen, DE
• Roland Richter · Cologne, DE

Key dates

• Filing date: May 11, 1990
• Grant date: Sep 10, 1991
• Expiry date: May 11, 2010

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/277
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Foaming during setting of a polyurethane fixed dressing, e.g. cast for broken arm, is minimized by utilizing as the dressing a polyisocyanate composition comprising: PA1 a) at least one organic polyisocyanate, PA1 b) at least one catalyst and PA1 c) at least one compound of the formula ##STR1## in which R represents methyl, ethyl or propyl and 1.ltoreq.n.ltoreq.4.