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. 01, 2022
Filed:
Oct. 04, 2019
Henkel Ag & Co. Kgaa, Duesseldorf, DE;
Jan-Willem Brouwer, Willich, DE;
Frank-Oliver Pilarek, Bergheim, DE;
Fernando Jose Resano Artalejo, Duesseldorf, DE;
Jens Kroemer, Neuss, DE;
Matthias Hamacher, Huerth, DE;
Thibault Leseur, Bruehl, DE;
Marc Balzer, Duesseldorf, DE;
Henkel AG & Co. KGaA, Duesseldorf, DE;
Abstract
The invention relates to a method for zinc phosphating components comprising surfaces made of zinc in order to suppress the formation of insoluble phosphation constituents removably adhered to the zinc surfaces and thus further improve the adhesion of dip-paint coatings applied later. In the method, a process is used of activating the zinc surfaces by means of dispersions containing particulate hopeite, phosphophyllite, scholzite, and/or hureaulite, wherein the proportion of particulate phosphates in the activation process must be adapted to the quantity of free fluoride and dissolved silicon in the zinc phosphation.