Passivating means, surface treatment means, surface treatment spray means and method for treating metallic surfaces of work pieces or cast molds

US8512484B2 · kind B2 · utility

Assignees

• KS Aluminium-Technologie GmbH · DE
• GELITA AG · DE

Inventors

• Manfred Laudenklos · Schöneck, DE
• Stephan Beer · Schaffhausen, CH
• Matthias Reihmann · Hemsbach, DE

Key dates

• Filing date: Jan 26, 2009
• Grant date: Aug 20, 2013
• Expiry date: Jan 30, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23C22/08
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A passivating agent for metallic surfaces of workpieces or casting molds includes an aqueous phosphate solution with metal ions and a gelatin.