Patent · US Active

Method for coating of metallic coil or sheets for producing hollow articles

US7947333B2 · kind B2 · utility

3Cited by

3References

24Claims

0Family size

Assignee

CHEMETALL GMBH · DE

Inventors

Mats Eriksson · Ytterby, SE
Thomas Wendel · Schwalbach, DE
Hardy Wietzoreck · Frankfurt am Main, DE

Key dates

Filing date	Mar 31, 2006
Grant date	May 24, 2011
Priority date	—
Expiry date	Jun 17, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC23C22/73
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A method for coating of a metallic coil or of metallic sheets with an aqueous coating composition comprising at least one compound selected from the group consisting of zirconium compounds, titanium compounds and hafnium compounds whereby the such treated metallic coil or metallic sheets is/are shaped by cold extruding, by deep-drawing, by drawing, by necking, by punching, by wall ironing or by any combination of such process steps to a hollow article like a container or a casing and is then cleaned and optionally further coated either by chemical pre-treatment and then by coating with ink or paint or both or by chemical treatment.

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