Method for producing polyisocyanates of (cyclo)aliphatic diisocyanates which are flocculation-stable in solvents

US11807709B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Harald Schaefer · Ludwigshafen, DE
• Daniel Flojhar · Ludwigshafen, DE
• Jens Scheidel · Hirschberg, DE
• Thomas Genger · Ludwigshafen, DE
• Sebastian Emmerling · Ludwigshafen, DE
• Matthias Kroner · Eisenberg, DE
• Guillermo Arens · Bischofswerda, DE

Key dates

• Filing date: Oct 2, 2017
• Grant date: Nov 7, 2023
• Expiry date: Jun 16, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/5317
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a new process for preparing polyisocyanates containing isocyanurate groups and being flocculation-stable in solvents from (cyclo)aliphatic diisocyanates.