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. 08, 2016
Filed:
Jul. 29, 2014
Applicant:
Henkel Ag & Co. Kgaa, Duesseldorf, DE;
Inventors:
Ioannis Demertzis, Milan, IT;
Mauro Rigamonti, Opera, IT;
Paolo Giordani, Crema, IT;
Paolo Gamboggi, Milan, IT;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23G 1/08 (2006.01); C11D 7/08 (2006.01);
U.S. Cl.
CPC ...
C11D 7/08 (2013.01); C23G 1/08 (2013.01); C23G 1/086 (2013.01);
Abstract
The present invention relates to an acidic aqueous solution suitable for the pickling of stainless steel grades that comprises accelerators based on water soluble inorganic compounds comprising at least one nitrogen atom in an oxidation state in the range of −2 to −⅓. The present invention further encompasses a process for the pickling of stainless steel that makes use of a pickling solution comprising the above-mentioned accelerators.