The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 10, 2009
Filed:
Oct. 10, 2001
Christian Jung, Oberhaid, DE;
Toshiaki Shimakura, Fchikawa, JP;
Norbert Maurus, Langen, DE;
Heribert Domes, Weilmunster, DE;
Hardy Wietzoreck, Frankfurt am Main, DE;
Klaus Bittner, Frankfurt am Main, DE;
Thomas Kolberg, Heppenheim, DE;
Marcus Schinzel, Eppstein, DE;
Christian Jung, Oberhaid, DE;
Toshiaki Shimakura, Fchikawa, JP;
Norbert Maurus, Langen, DE;
Heribert Domes, Weilmunster, DE;
Hardy Wietzoreck, Frankfurt am Main, DE;
Klaus Bittner, Frankfurt am Main, DE;
Thomas Kolberg, Heppenheim, DE;
Marcus Schinzel, Eppstein, DE;
Chemetall GmbH, Frankfurt am Main, DE;
Abstract
The invention relates to a method for coating a metallic strip. The strip or optionally, the strip sections produced from said strip in the subsequent process, is/are first coated with at least one anticorrosion layer—according to an alternative form of embodiment, this can be left out—and then with at least one layer of a paint-like coating containing polymers. After being coated with at least one anticorrosion layer or after being coated with at least one layer of a paint-like coating, the strip is divided into strip sections. The coated strip sections are then formed, joined and/or coated with at least one (other) paint-like coating and/or paint coating. The paint-like coating is formed by coating the surface with an aqueous dispersion containing the following in addition to water: a) at least one organic film former containing at least one water-soluble or water-dispersed polymer with an acid value of 5 to 200; b) at least one inorganic compound in particle form with an average particle diameter measured on a scanning electron microscope of 0.005 to 0.3 μm; and c) at least one lubricant and/or at least one corrosion inhibitor. The metallic surface that is optionally coated with at least one anticorrosion layer is brought into contact with the aqueous composition and a film containing particles is formed on the metallic surface, this film then being dried and optionally also hardened, the dried and optionally, also hardened film having a layer thickness of 0.01 to 10 μm. The invention also relates to a corresponding aqueous composition.