UV curable powder coating compositions

US6747070B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Andreas Wenning · Nottuln, DE
• Giselher Franzmann · Witten, DE
• Emmanouil Spyrou · Schermbeck, DE

Key dates

• Filing date: Nov 26, 2001
• Grant date: Jun 8, 2004
• Expiry date: Apr 22, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2250/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A UV curable powder coating composition having a binder containing A) 60-90% by weight of at least one amorphous urethane acrylate and B) 10-40% by weight of at least one crystalline urethane acrylate; and having an auxiliary, crosslinks to form a light- and weather-stable paint film that possesses excellent gloss.