Method for the production of polyisocyanates comprising isocyanurate groups and use therof

US8119799B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Horst Binder · Lampertheim, DE
• Hubert Graf · Munich, DE
• Frank Braun · Ludwigshafen, DE
• Bernd Spies · Ludwigshafen, DE
• Heinrich Kieslich · Ludwigshafen, DE

Key dates

• Filing date: Mar 9, 2005
• Grant date: Feb 21, 2012
• Expiry date: Jul 15, 2027

Classification

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

Abstract

The present invention relates to novel catalysts for preparing polyisocyanates having isocyanurate groups by a partial trimerization of (cyclo)aliphatic diisocyanates.