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:
Aug. 18, 2009
Filed:
Jul. 07, 2004
Applicants:
Matthias Boll, Köln, DE;
Stephan Völkening, Köln, DE;
Inventors:
Matthias Boll, Köln, DE;
Stephan Völkening, Köln, DE;
Assignee:
Bayer Technology Services GmbH, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B 21/02 (2006.01); C22B 3/12 (2006.01); C22B 3/16 (2006.01); G01N 27/26 (2006.01); B01J 25/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method is described of treating aluminium-metal alloys with organic or inorganic bases by exposing them to an aqueous solution of the base, removing the aqueous base and washing the treated alloy material, the leaching process being monitored, during the time of exposure to the base, on the basis of the potential which is established at a measuring electrode as a result of the treated aluminium-metal alloy and the hydrogen which may be formed during the reaction.