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:
Jul. 03, 2018
Filed:
Jul. 16, 2013
Applicant:
Henkel Ag & Co. Kgaa, Duesseldorf, DE;
Inventors:
Uta Sundermeier, Leichlingen, DE;
Michael Wolpers, Erkrath, DE;
Marcel Roth, Dueseldorf, DE;
Jurgen Stodt, Neuss, DE;
Assignee:
Henkel AG & Co. KGaA, Duesseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 28/00 (2006.01); C25D 11/00 (2006.01); C25D 11/34 (2006.01); B65D 85/72 (2006.01); C23C 28/04 (2006.01); C25D 11/16 (2006.01);
U.S. Cl.
CPC ...
C25D 11/00 (2013.01); B65D 85/72 (2013.01); C23C 28/00 (2013.01); C23C 28/04 (2013.01); C25D 11/34 (2013.01); C25D 11/16 (2013.01);
Abstract
The invention relates to a two-stage method for the anti-corrosive pretreatment of tinplate, in which an anti-corrosive primer coating is applied in a first step, in which the tinplate is anodically polarized in an electrolyte containing at least one inert water-soluble salt and is then in a second step, brought in contact with an acidic aqueous composition containing water-soluble inorganic compounds of the elements Zr, Ti, Hf, and/or Si.