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, 2026
Filed:
Jun. 23, 2023
Henkel Ag & Co. Kgaa, Duesseldorf, DE;
Henkel AG & Co. KGaA, Duesseldorf, DE;
Abstract
An aqueous passivation composition for the treatment of zinc or zinc alloy coatings, the aqueous passivation composition having a pH of from 6.5 to 9 and comprising, based on the weight of the aqueous passivation composition: a) at least one base polymer selected from acrylic polymers and non-ionic polyurethane polymers present in an amount of from 5 to at 60 wt. % of; b) trivalent Cr (II) ions, present in an amount of from 0.1 to 2.5 wt. %, calculated as Cr; c) ascorbic acid; d) least one aluminum compound present in an amount of from 0.1 to 2.5 wt. %; and, e) at least one finely divided wax present in the aqueous passivation composition in an amount of up to 10 wt. %; wherein the aqueous passivation composition is substantially free of nitrate anions and is substantially free of hexavalent chromium (Cr(VI)).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile