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:
May. 09, 2023
Filed:
Aug. 28, 2018
Applicant:
Chemetall Gmbh, Frankfurt, DE;
Inventors:
Olaf Dahlenburg, Frankfurt am Main, DE;
Thomas Kolberg, Frankfurt am Main, DE;
Lisa Seider, Frankfurt am Main, DE;
Assignee:
CHEMETALL GMBH, Frankfurt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C11D 7/14 (2006.01); C11D 7/26 (2006.01); C11D 11/00 (2006.01); C23C 22/36 (2006.01); C11D 7/10 (2006.01); C23C 22/78 (2006.01); C23G 1/18 (2006.01);
U.S. Cl.
CPC ...
C23C 22/365 (2013.01); C11D 7/105 (2013.01); C11D 7/14 (2013.01); C11D 7/265 (2013.01); C11D 11/0029 (2013.01); C11D 11/0041 (2013.01); C23C 22/78 (2013.01); C23G 1/18 (2013.01);
Abstract
The present invention relates to a method for substantially nickel-free phosphating of a metallic surface, wherein a metallic surface is treated one after the other with the following compositions: The invention also relates to the above cleaner composition itself and also to a metallic surface phosphate-coated by the above method, and to the use of said surface.