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. 23, 2024
Filed:
Jul. 03, 2019
Chemetall Gmbh, Frankfurt, DE;
Rhodia Operations, Aubervilliers, FR;
Stefan Birkenheuer, Shanghai, CN;
Carina Hecker, Frankfurt am Main, DE;
Oliver Sauer, Frankfurt am Main, DE;
Daniel Schatz, Frankfurt am Main, DE;
Nawel Souad Khelfallah, Frankfurt am Main, DE;
Marie-Pierre Labeau, Sèvres, FR;
Guillaume Gody, Rueil-Malmaison, FR;
SPECIALTY OPERATIONS FRANCE, Lyons, FR;
Abstract
Described herein is a method for treatment of a metallic surface, including the step of contacting the metallic surface with an acidic aqueous composition. Also described herein is an acidic aqueous composition used in the method for treatment, a master batch to produce such acidic aqueous composition, a method of using the acidic aqueous composition to treat metallic surfaces and substrates including the thus treated metallic surfaces.