Method for producing an ultraphobic surface on an aluminum base

US6652669B1 · kind B1 · utility

Assignee

• Sunyx Surface Nanotechnologies GmbH · DE

Inventors

• Karsten Reihs · Cologne, DE
• Daniel Gordon Duff · Leverkusen, DE
• Georg Wiessmeier · Bensberg, DE
• Burkhard Koehler · Warburg, DE
• Matthias Voetz
• Juan Gonzalez-Blanco · Recklinghausen, DE
• Eckard Wenz · Recklinghausen, DE

Key dates

• Filing date: Aug 27, 2001
• Grant date: Nov 25, 2003
• Expiry date: Aug 27, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C25D11/06
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The invention relates to a method for producing an ultraphobic surface on aluminium as the supporting material and to the resulting surface and its use. According to said method, the surface of an aluminium support is anodized, especially by anodic oxidation, and/or electrochemically pickled in an acid solution with an alternating voltage, treated in hot water or water vapor at a temperature of 50 to 100° C., optionally coated with an adhesion promoter layer and then provided with a hydrophobic or especially oleophobic coating.