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:
Jan. 25, 2022
Filed:
Oct. 13, 2017
Henkel Ag & Co. Kgaa, Duesseldorf, DE;
Sophie Cornen, Duesseldorf, DE;
Kristof Wapner, Duesseldorf, DE;
Ralf Posner, Dormagen, DE;
Natascha Henze, Leverkusen, DE;
Kirsten Agnes Lill, Cologne, DE;
Michiel Gerard Maas, Leverkusen, DE;
Henkel AG & Co. KGaA, Duesseldorf, DE;
Abstract
A multi-step method for anti-corrosion pretreatment of components made from metallic materials, in which a wet chemical treatment with an aqueous composition (A) containing a dissolved and/or dispersed polymer P, which is substituted with heterocycles containing at least one quaternary nitrogen heteroatom, is followed by a conversion treatment based on water-soluble compounds of the elements Zr, Ti, and/or Si before further anti-corrosion coatings are optionally applied.