Cerium oxide powder and cerium oxide dispersion

Details Cerium oxide powder and cerium oxide dispersion Cerium oxide powder and cerium oxide dispersion

2006-08-11

2009-06-30

Mayes, Melvin C (Department: 1793)

Chemistry of inorganic compounds

Rare earth compound

C204S157420, C423S178000, C423S625000, C428S375000, C428S402000, C106S286100

Reexamination Certificate

active

07553465

ABSTRACT:
Cerium oxide powder having carbonate groups and made of crystalline primary particles containing cerium oxide and having carbonate groups on the surface and in a region close to the surface, and having a BET surface area of from 25 to 150 m2/g, a mean diameter of from 5 to 50 nm, a carbonate concentration in the region close to the surface decreasing inwardly from the surface, a carbon content due to carbonate groups on the surface of from 5 to 50% by area, a carbon content due to carbonate groups at a depth of about 5 nm in a region close to the surface of from 0 to 30% by area, a content of cerium oxide calculated as CeO2and based on the powder of at least 99.5% by weight and a content of organic and inorganic carbon of from 0.01 to 0.3% by weight. A dispersion containing this powder.

REFERENCES:
patent: 5064628 (1991-11-01), Chane-Ching et al.
patent: 6602111 (2003-08-01), Fujie et al.
patent: 6663683 (2003-12-01), Lortz et al.
patent: 6676719 (2004-01-01), Lortz et al.
patent: 6767377 (2004-07-01), Schumacher et al.
patent: 6808769 (2004-10-01), Batz-Sohn et al.
patent: 6887566 (2005-05-01), Hung et al.
patent: 6991190 (2006-01-01), Lortz et al.
patent: 7015270 (2006-03-01), Scharfe et al.
patent: 7169322 (2007-01-01), Menzel et al.
patent: 7374787 (2008-05-01), Lortz et al.
patent: 7470423 (2008-12-01), Lortz et al.
patent: 2004/0240062 (2004-12-01), Lortz et al.
patent: 2005/0036928 (2005-02-01), Katusic et al.
patent: 2005/0074610 (2005-04-01), Kroll et al.
patent: 2005/0169861 (2005-08-01), Lortz et al.
patent: 2006/0104881 (2006-05-01), Lortz et al.
patent: 2006/0163533 (2006-07-01), Batz-Sohn et al.
patent: 2006/0193764 (2006-08-01), Katusic et al.
patent: 2007/0048205 (2007-03-01), Katusic et al.
patent: 2008/0051473 (2008-02-01), Lortz et al.
patent: 2008/0098932 (2008-05-01), Perlet et al.
patent: 2008/0264299 (2008-10-01), Lortz et al.
patent: 1 506 940 (2005-02-01), None
patent: WO 01/36332 (2001-05-01), None
U.S. Appl. No. 60/405,739, filed Aug. 26, 2002, Lortz, et al.
U.S. Appl. No. 11/722,122, filed Jun. 19, 2007, Oswald, et al.
U.S. Appl. No. 12/097,300, filed Jun. 13, 2008, Lortz, et al.
U.S. Appl. No. 11/910,668, filed Mar. 8, 2006, Kroll, et al.
U.S. Appl. No. 60/708,401, filed Aug. 16, 2005, Katusic, et al.
U.S. Appl. No. 60/940,908, filed May 30, 2007, Kroell, et al.
U.S. Appl. No. 12/271,414, filed Nov. 14, 2008, Wursche, et al.

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