Aqueous coating composition for stoving finishes and process for the production thereof

US6251985A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Christian Wamprecht · Neuss, DE
• Lothar Kahl · Bensberg, DE
• Bernd Klinksiek · Bensberg, DE
• Nusret Yuva · Wermelskirchen, DE

Key dates

• Filing date: Aug 18, 1998
• Grant date: Jun 26, 2001
• Expiry date: Aug 18, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/807
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

An aqueous coating composition including a combination of hydroxyl group-containing polyols and blocked polyisocyanate cross-linking agents, which dries preferably in pulverulent manner on the surface to be coated and, after stoving, affords coatings having a high resistance to water, chemicals and solvents, in particular on metallic substrates, and a process for the production of the coating composition.