Bismuth catalysts useful for curing of cataphoretic deposition coating materials

US5670441A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Hartmut Foedde · Taunusstein, DE
• Markus Schafheutle · Hochheim, DE
• Achim Voelker · Offenbach, DE
• Susanne Wehner · Villmar, DE
• Klausjoerg Klein · Wuppertal, DE

Key dates

• Filing date: Jun 23, 1995
• Grant date: Sep 23, 1997
• Expiry date: Jun 23, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G59/68
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Catalysts useful for the curing of, for example, cataphoretic deposition coating materials, including water-soluble bismuth compounds and an epoxy-amine adduct, the preparation of the bismuth compound involving acid being employed in a quantity such that there are less than 2 mol of dissociable protons per mole of bismuth.