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. 08, 2002
Filed:
Aug. 31, 2000
Applicant:
Inventors:
Harald Bönsel, Whitehouse Station, NJ (US);
Gregor Deckers, Frankfurt, DE;
Georg Frank, Tübingen, DE;
Hans Millauer, München, DE;
Thomas Soczka-Guth, Hofheim, DE;
Assignee:
Axiva GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01F 1/712 ; B01J 2/342 ; B01J 3/502 ; H01M 4/92 ;
U.S. Cl.
CPC ...
B01F 1/712 ; B01J 2/342 ; B01J 3/502 ; H01M 4/92 ;
Abstract
Polymer-stabilized metal colloid solutions, process for preparing them and their use as catalysts for fuel cells. Process for preparing metal colloid solutions by reacting a platinum compound and, if desired, one or more compounds of Rh, Ru, Ir or Pd with a reducing agent. At least one cation-exchange polymer is used for stabilizing the metal colloid solution.