Aqueous stoving enamels

US7199184B2 · kind B2 · utility

Assignee

• Surface Specialties Austria GmbH · AT

Inventors

• Markus Schafheutle · Hochheim, DE
• Julius Burkl · Graz, AT
• Anton Arzt · Tillmitsch Links der Laßnitz, AT
• Gerlinde Petritsch · Graz, AT
• Rudolf Jedlicka · Wiener Neustadt, AT
• Joerg Wango · Wundschuh, AT

Key dates

• Filing date: Sep 21, 2004
• Grant date: Apr 3, 2007
• Expiry date: Apr 15, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31551
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Aqueous stoving enamels containing resins A which have hydroxyl groups and are made hydrophilic by partially neutralized acid groups, and highly etherified aminoplasts B, characterised in that the aqueous solutions or dispersions of the resin have a pH value of 6 or below, a method for the preparation thereof, and a method of use comprising coating thermally sensitive substrates.