Method for coating metallic surfaces with an aqueous composition

US8182874B2 · kind B2 · utility

Assignee

• CHEMETALL GMBH · DE

Inventors

• Thomas Kolberg · Heppenheim, DE
• Manfred Walter · Nuremberg, DE
• Peter Schubach · Nidderau, DE

Key dates

• Filing date: Nov 9, 2005
• Grant date: May 22, 2012
• Expiry date: Aug 23, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/60
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A process for coating a metallic surface by contacting the metallic surface with a first coating composition to form a first coating on the metallic surface, wherein the first coating composition contains water and at least one compound a) selected from a silane, a silanol, a siloxane and a polysiloxane. The first coating is the rinsed with an aqueous surfactant-containing fluid without drying so that the at least one compound a) does not condense before the rinsing step. The silane, silanol, siloxane or polysiloxane is capable of condensation.