Multilayered enamelling process

US6165561A · kind A · utility

Assignee

• Herberts Gesellschaft mit beschrankter Haftung · DE

Inventors

• Joachim Blum · Remscheid, DE
• Dieter Engel · Kelsterbach, DE
• Klausjorg Klein · Wuppertal, DE
• Walter Kuhhirt · Remscheid, DE
• Bettina Vogt-Birnbrich · Solingen, DE

Key dates

• Filing date: May 17, 1999
• Grant date: Dec 26, 2000
• Expiry date: May 17, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D5/088
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

This invention relates to a process for the production of a multilayer lacquer coating on a substrate having an autophoretically coatable, metallic surface, in which a first priming coat of an autophoretically depositable coating composition is autophoretically deposited and then stoved and one or more subsequent coats are then applied by spraying, wherein the autophoretically depositable coating composition contains one or more constituents having an adhesion promoting action and/or wherein before one or more further coats are applied by spraying, the stoved priming layer produced by autophoretic deposition is physically and/or chemically treated and/or provided with an adhesion promoting coat.