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:
Mar. 19, 2024
Filed:
Nov. 02, 2021
Applicant:
Universitaet Ulm, Ulm, DE;
Inventors:
Assignee:
Universitaet Ulm, Ulm, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D 3/06 (2006.01); C25D 3/10 (2006.01);
U.S. Cl.
CPC ...
C25D 3/06 (2013.01); C25D 3/10 (2013.01);
Abstract
A method for preparing a Cr(III)-plating solution is disclosed. The method comprises or consists of the steps of (a) providing an aged aqueous Cr(III)-solution; (b) adding a polycarbonate or a derivative thereof to the solution of step (a); and (c) adding a borate to the solution of step (b). In addition, a plating solution obtainable by the present method is disclosed, and a plating solution comprising or consisting of Cr(III)-ions, a polycarbonate or a derivative thereof, a borate, water, sulfate, and positive ions selected from the group consisting of hydrogen ions, alkali metal ions and earth alkali metal ions.