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:
Oct. 29, 2013
Filed:
Jul. 18, 2007
Frank Klippel, Ludwigshafen, DE;
Alexander Göthlich, Mannheim, DE;
Gunnar Schornick, Neuleiningen, DE;
Dietrich Fehringer, Dielheim, DE;
Thomas Heidenfelder, Dannstadt-Schauernheim, DE;
Helmut Witteler, Wachenheim, DE;
Walter Bertkau, Ludwigshafen, DE;
Frank Klippel, Ludwigshafen, DE;
Alexander Göthlich, Mannheim, DE;
Gunnar Schornick, Neuleiningen, DE;
Dietrich Fehringer, Dielheim, DE;
Thomas Heidenfelder, Dannstadt-Schauernheim, DE;
Helmut Witteler, Wachenheim, DE;
Walter Bertkau, Ludwigshafen, DE;
BASF SE, , DE;
Abstract
Process for passivating metallic surfaces, and a preparation suitable for implementing the process, comprising at least water, an acid, and a copolymer of functionalized (meth)acrylic esters, monomers containing phosphoric and/or phosphonic acid groups, monomers having COOH groups, and, if appropriate, further monomers. Copolymer which comprises said monomers.