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:
Feb. 23, 2016
Filed:
Jan. 17, 2014
Basf Corporation, Florham Park, NJ (US);
Basf SE, Ludwigshafen, DE;
Mirko Arnold, Bedminster, NJ (US);
Stefan Kotrel, Weinheim, DE;
Attilio Siani, Hannover, DE;
Stephan Siemund, Pattensen, DE;
Thomas Schmitz, Wunstorf, DE;
Burkhard Rabe, Husum, DE;
Gary A Gramiccioni, Madison, AL (US);
Oliver Seel, Nienburg/Weser, DE;
Torsten Neubauer, Langenhagen, DE;
Knut Wassermann, Princeton, NJ (US);
BASF CORPORATION, Florham Park, NJ (US);
Abstract
Provided are catalyst composites whose catalytic material is effective to substantially simultaneously oxidize carbon monoxide and hydrocarbons and reduce nitrogen oxides. The catalyst composites have a two-metal layer on a carrier, the two-metal layer comprising a rhodium component supported by a first support comprising a refractory metal oxide component or a first ceria-zirconia composite; a palladium component supported by a second support comprising a second ceria-zirconia composite; one or more of a promoter, stabilizer, or binder; wherein the amount of the total of the first and second ceria-zirconia composites in the two-metal layer is equal to or greater than the amount of the refractory metal oxide component. Methods of making and using the same are also provided.