Polyurethane powder coatings with a matt appearance

US7026393B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Andreas Wenning · Nottuln, DE
• Jorn-Volker Weiss · Haltern, DE

Key dates

• Filing date: Jul 18, 2003
• Grant date: Apr 11, 2006
• Expiry date: Nov 1, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S525/934
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polyurethane powder coating materials comprising polyureas, polyesters, and crosslinkers, which have less than 15 mol % succinic acid as the polycarboxylic acid component. Matt coatings and coated materials comprising or produced using such polyurethane powder coating materials.