Chemistry of inorganic compounds – Rare earth compound
Reexamination Certificate
2005-07-28
2011-10-04
Mayes, Melvin (Department: 1732)
Chemistry of inorganic compounds
Rare earth compound
C423S598000, C423S608000, C423S610000, C423S625000, C423S593100
Reexamination Certificate
active
08029754
ABSTRACT:
The present invention relates to cerium oxide powder and a process for producing the same. The cerium oxide powder of the invention, which is produced by mixing a cerium source such as cerium oxide, cerium hydroxide and cerium carbonate with an alkali metal compound, as flux, and performing high temperature treatment, may have a variety particle size while having spherical shape.
REFERENCES:
patent: 5750090 (1998-05-01), Yoshida et al.
patent: 6030914 (2000-02-01), Matsui
patent: 6120571 (2000-09-01), Aihara et al.
patent: 6503475 (2003-01-01), McCormick et al.
patent: 7473408 (2009-01-01), Noh et al.
patent: 2003/0136686 (2003-07-01), Herbst
patent: 2003/0228248 (2003-12-01), Kwon et al.
patent: 2006/0150526 (2006-07-01), Ota et al.
patent: 12 76 847 (1968-09-01), None
patent: 1 110 290 (1968-04-01), None
patent: 10-2001-7014923 (2002-02-01), None
patent: WO03/089374 (2003-10-01), None
Hsu, et al. “Preparation and Properties of Monodispersed Colloidal Particles of Lanthanide Compounds. 2. Cerium (IV)” ; 1988 American Chemical Society; Langmuir 1988, 4, 31-37.
Tsuzuki, et al. “Synthesis of Ultrafine Ceria Powders by Mechanochemical Processing” ; J. Am. Ceram. Soc., 84[7] 1453-58 (2001).
Bondioli et al., “Nanosized CeO2Powders Obtained by Flux Method”, Materials Research Bulletin, vol. 34, Nos. 14/15, 1999, pp. 2159-2166.
Cho Seung-beom
Kim Jang-yul
Kim Jong-pil
Nho Jun-seok
Oh Myoung-hwan
LG Chem Ltd.
Mayes Melvin
McKenna Long & Aldridge LLP
Patel Smita
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