Latent catalysts for the isocyanate polyaddition reaction

US4521545A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Dimitrios Kerimis · Cologne, DE
• Rudolf Hombach · Leverkusen, DE
• Peter Muller · Leverkusen, DE
• Manfred Dollhausen · Odenthal, DE

Key dates

• Filing date: Jul 19, 1984
• Grant date: Jun 4, 1985
• Expiry date: Jul 19, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/1875
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Compositions which are storage stable at room temperature are made from an organic polyisocyanate, a compound containing at least two isocyanate-reactive groups and a latent catalyst. The latent catalyst is formed from an amine and an alkylating ester of an acid of phosphorus. These compositions react to form isocyanate polyaddition products when exposed to a temperature of 60.degree. C. or higher. These compositions are useful in the production of adhesives, foamed and non-foamed plastics and coatings.