Preparation of biuret-containing polyisocyanates

US7022874B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Bernd Bruchmann · Ludwigshafen, DE
• Stefan Wolff · Sunnyvale, US
• Wolfgang Heider · Neustadt, DE
• Joachim Jähme · Frankenthal (Pfalz), DE
• Werner Langer · Ludwigshafen, DE
• Hans Renz · Meckenheim, DE

Key dates

• Filing date: Feb 1, 1996
• Grant date: Apr 4, 2006
• Expiry date: May 5, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/7831
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the preparation of polyisocyanates which contain one or more biuret groups, by reacting