Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Reexamination Certificate
2007-04-09
2009-02-03
Wood, Elizabeth D (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
C502S302000, C502S303000, C502S324000, C502S325000, C502S340000, C502S343000, C502S345000, C502S349000, C502S350000, C502S353000
Reexamination Certificate
active
07485599
ABSTRACT:
An oxygen storage material comprising cerium oxide and at least one second oxide of a metal M1is disclosed as well as a process for manufacturing the material and the use of this material in an exhaust gas cleaning catalyst. In a preferred embodiment the oxygen storage material comprises particles from a Ce/M1mixed oxide solid solution coated with an oxide of another metal M2. Metal M1e.g. can be calcium or zirconium while metal M2most preferably is aluminum.
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Adamopoulos Othon
Bog Tassilo
Feger Matthias
Kreuzer Thomas
Lindner Dieter
Kalow & Springut LLP
Umicore AG & Co. KG
Wood Elizabeth D
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