Cold setting compositions, a process for the production thereof and the use thereof for polyurethane production

US4716182A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Heinrich Hess · Cologne, DE
• Gerhard Grogler · Leverkusen, DE
• Richard Kopp · Cologne, DE

Key dates

• Filing date: Jul 29, 1986
• Grant date: Dec 29, 1987
• Expiry date: Jul 29, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/8038
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to cold setting compositions of (A) suspensions of solid polyisocyanates with retarded reactivity in aliphatic polyamines, and which are stable under storage due to a polyadduct covering, and (B) polyols and/or water. The activation of the composition is caused by the polyol or water. Additional activating materials can also be added for hardening. Such compositions, which already harden at ambient temperature, are stable under storage, have a long potlife for processing and, in relation to the potlife, have a very short hardening time to the final reaction product.