Cathodically depositable aqueous electro-dipping lacquer coating composition

US4364860A · kind A · utility

Assignee

• Herberts Gesellschaft mit beschrankter Haftung · DE

Inventors

• Hans-Peter Patzschke · Wuppertal, DE
• Armin Gobel · Syke, DE

Key dates

• Filing date: Jul 1, 1980
• Grant date: Dec 21, 1982
• Expiry date: Jul 1, 2000

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S524/901
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A cathodically depositable aqueous electro-dipping lacquer coating which contain as binder, which binder can be diluted with water by protonization with acids, 55 to 95% by weight based on the total quantity of binder, of organic synthetic resin binders containing amino groups, having an average molecular weight (Mn) of about 500 to 10,000, a pK.sub.b value of about 3 to 7 and an amine value of about 30 to 150 and 45 to 5% by weight of cross-linking agents having an average molecular weight (Mn) of about 500 to 5,000, which contain esterified terminal carboxyl groups.