1,4-Diisocyanato-2,2,6-trimethylcyclohexane polyisocyanates containing isocyanurate groups, a process for the preparation and use

US6495650B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Stephan Kohlstruk · Marl, DE
• Emmanouil Spyrou · Schermbeck, DE
• Klaus Pinske · Haltern, DE

Key dates

• Filing date: Mar 29, 2001
• Grant date: Dec 17, 2002
• Expiry date: Mar 29, 2021

Classification

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

Abstract

The invention provides polyisocyanates containing isocyanate groups from 1,4-diisocyanato-2,2,6-trimethylcyclohexane, having a trimer fraction of more than 80% by weight and an NCO content of at least 19.3%.