Process for the production of highly elastic foams containing urethane groups and foams obtainable by this process

US4546116A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hanns P. Muller · Leverkusen, DE
• Hans Hettel · Cologne, DE
• Kuno Wagner · Leverkusen, DE
• Peter Vogtel · Leverkusen, DE

Key dates

• Filing date: Sep 21, 1984
• Grant date: Oct 8, 1985
• Expiry date: Sep 21, 2004

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S521/908
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for the production of foams containing urethane groups by reacting polyether polyols with polyisocyanates in the presence of water and in the presence of an alkaline catalyst, a compound containing a labile halogen atom and, optionally, a tertiary nitrogen containing chain extender. The present invention also relates to the foams obtainable by this process.