Patent · US Active

Process for coating metal sheet, especially zinc sheet

US7709058B2 · kind B2 · utility

3Cited by

9References

16Claims

0Family size

Assignee

Henkel AG & Co. KGaA · DE

Inventors

Andreas Kunz · Remscheid, DE
Eva Wilke · Hilden, DE
Wolfgang Lorenz · Dormagen, DE
Hans Clodt · Essen, DE

Key dates

Filing date	Aug 7, 2007
Grant date	May 4, 2010
Priority date	—
Expiry date	Aug 7, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31678
WIPO fieldSurface technology, coating
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.