Patent Number: 7,709,058

Title: Process for coating metal sheet, especially zinc sheet

Abstract: A process for coating metals, selected from aluminum and its alloys, zinc and its alloys, and galvanized or alloy-galvanized steel, in which the metal is given a weather-resistant protective coating, wherein the metal is cleaned if necessary, and thereafter subjected to a conversion treatment; optionally flushed with water and/or dried; brought into contact with a coating agent which comprises aliphatic cross-linking urethane resins, cross-linking agents, anti-corrosion pigments, one or more organic solvents and/or water and, if desired, other active or auxiliary substances; and then cured.

Inventors: Kunz; Andreas (Remscheid, DE), Wilke; Eva (Hilden, DE), Lorenz; Wolfgang (Erkrath, DE), Clodt; Hans (Essen, DE)

Assignee: Henkel KGaA

International Classification: B05D 1/36 (20060101); B05D 3/02 (20060101)

Expiration Date: 5/04/12018