Colour-stable curing compositions containing polyisocyanates of (cyclo)aliphatic diisocyanates

US11001730B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

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

Key dates

• Filing date: Oct 2, 2017
• Grant date: May 11, 2021
• Expiry date: May 8, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/5333
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a novel process for preparing isocyanurate-comprising polyisocyanates of (cyclo)aliphatic diisocyanates that are especially stable to color drift in solvents.