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. 19, 2015
Filed:
Oct. 04, 2011
Applicants:
Achim Fessenbecker, Waghaeusel, DE;
Bernd Laubusch, Buerstadt, DE;
Oihana Elizalde, Charlotte, NC (US);
Inventors:
Achim Fessenbecker, Waghaeusel, DE;
Bernd Laubusch, Buerstadt, DE;
Oihana Elizalde, Charlotte, NC (US);
Assignee:
BASF SE, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B32B 15/08 (2006.01); C09D 133/02 (2006.01); C08F 220/06 (2006.01); C08L 33/02 (2006.01);
U.S. Cl.
CPC ...
C08F 220/06 (2013.01); C09D 133/02 (2013.01); C08L 33/02 (2013.01);
Abstract
A method for passivating a metallic surface, by treating the surface with a basic aqueous composition comprising one polymer comprising acidic groups, a cationic crosslinker and a volatile basic compound, allows a durable passivation of fragile metal surfaces.