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. 24, 2015
Filed:
Oct. 04, 2011
Applicants:
Guido Vandermeulen, Ilvesheim, DE;
Achim Fessenbecker, Waghäusel, DE;
Bernd Laubusch, Bürstadt, DE;
Helmut Witteler, Wachenheim, DE;
Jürgen Tropsch, Römerberg, DE;
Inventors:
Guido Vandermeulen, Ilvesheim, DE;
Achim Fessenbecker, Waghäusel, DE;
Bernd Laubusch, Bürstadt, DE;
Helmut Witteler, Wachenheim, DE;
Jürgen Tropsch, Römerberg, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C23C 22/48 (2006.01); C09D 5/12 (2006.01); C23C 22/12 (2006.01); C23C 22/00 (2006.01);
U.S. Cl.
CPC ...
C23C 22/12 (2013.01); C09D 5/12 (2013.01);
Abstract
A method for passivating metallic surfaces, wherein the surface is contacted with an aqueous composition comprising at least one water-soluble polymer (X) comprising acidic groups and with at least one surfactant (T) based on alkoxylated alcohols, the pH of the composition being in the range from 0.5 to 5, enables durable protection of the surface.