Urethane group-containing polyisocyanurate foam based on naphthenic acid-hydroxylamine adduct

US4277571A · kind A · utility

Assignee

• BASF SE

Inventors

• Georg Falkenstein
• Hansjuergen Kessler · Mannheim, DE

Key dates

• Filing date: Mar 21, 1980
• Grant date: Jul 7, 1981
• Expiry date: Mar 21, 2000

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S521/902
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This invention relates to an urethane group containing polyisocyanurate foam produced from a polyisocyanate and a polyhydroxy compound, wherein the polyhydroxy compound is the reaction mixture of a hydroxyl group containing amine which is at least difunctional and is selected from the group consisting of a secondary amine, a tertiary amine, and a mixture thereof, and a naphthenic acid, or a mixture of said reaction mixture and a conventional polyol, the reaction conditions are a temperature between 0.degree. C. and 150.degree. C. and an amino equivalent to carboxylic equivalent of 0.3:1 to 50:1.