Method for the production of diaminodiarylmethanes

US7408083B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Ulrich Steinbrenner · Kohlhof, DE
• Eckhard Stroefer · Mannheim, DE
• Martin Sohn · Mannheim, DE
• Veronika Quaschning · Mannheim, DE
• Helmut Moehwald · Annweiler am Trifels, DE
• Kai Thiele · Ekeren, BE
• Filip Deberdt · Bonheiden, BE
• Jan Jacobs · Hoogerheide, NL
• Rolf Pinkos · Bad Dürkheim, DE

Key dates

• Filing date: Jun 25, 2004
• Grant date: Aug 5, 2008
• Expiry date: Jul 15, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C211/50
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process is described for preparing diaminodiarylmethanes comprising the steps