Self-cross-linking, thermosetting, aqueous lacquer coating material, and its utilization for the cathodic deposition upon electrically conducting surfaces

US4373072A · kind A · utility

Assignee

• Herberts Gesellschaft mit beschrankter Haftung · DE

Inventors

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

Key dates

• Filing date: Sep 2, 1980
• Grant date: Feb 8, 1983
• Expiry date: Sep 2, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D5/4419
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a self-cross-linking, thermosetting, aqueous lacquer coating material, which comprises synthetic resins having a mean molecular weight (M.sub.n) of about 500 to 15,000 and containing primary and/or secondary--and if appropriate also tertiary--amino groups as well as terminal esterified carboxyl groups, having an amine number of about 20 to 180 and an ester number of about 20 to 350, and which becomes dilutable with water through protonization with acids. The invention moreover concerns the utilization of this lacquer coating material for the purposes of cathodic deposition upon electrically conducting surfaces.