Synthesis of nanometer-sized particles by reverse micelle...

Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing

Reexamination Certificate

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C516S022000, C516S033000, C501S012000, C501S125000, C502S132000

Reexamination Certificate

active

06869584

ABSTRACT:
The present invention relates to a method of producing particles having a particle size of less than 100 nm and surface areas of at least 20 m2/g where the particles are free from agglomeration. The method involves synthesizing the particles within an emulsion having a 1-40% water content to form reverse micelles. In particular, the particles formed are metal oxide particles. The particles can be used to oxidize hydrocarbons, particularly methane.

REFERENCES:
patent: 4107288 (1978-08-01), Oppenheim et al.
patent: 4359537 (1982-11-01), Chong
patent: 4933105 (1990-06-01), Fong
patent: 4933404 (1990-06-01), Beckman et al.
patent: 4960737 (1990-10-01), Guile et al.
patent: 4968350 (1990-11-01), Bindschaedler et al.
patent: 5035876 (1991-07-01), Castellano
patent: 5059574 (1991-10-01), Abrevaya
patent: 5112676 (1992-05-01), Cot et al.
patent: 5147841 (1992-09-01), Wilcoxon
patent: 5196177 (1993-03-01), Watanabe et al.
patent: 5338761 (1994-08-01), Nakajima et al.
patent: 5376347 (1994-12-01), Ipponmatsu et al.
patent: 5540981 (1996-07-01), Gallagher et al.
patent: 5580655 (1996-12-01), El-Shall et al.
patent: 5599759 (1997-02-01), Inagaki et al.
patent: 5622684 (1997-04-01), Pinnavaia et al.
patent: 5645891 (1997-07-01), Liu et al.
patent: 5662824 (1997-09-01), Sang et al.
patent: 5670088 (1997-09-01), Chittofrati et al.
patent: 5688761 (1997-11-01), Owen et al.
patent: 5695901 (1997-12-01), Selim
patent: 5698483 (1997-12-01), Ong et al.
patent: 5714536 (1998-02-01), Ziolo et al.
patent: 5725802 (1998-03-01), Chittofrati et al.
patent: 5731261 (1998-03-01), Balducci et al.
patent: 5770172 (1998-06-01), Linehan et al.
patent: 5837025 (1998-11-01), Auchter-Krummel et al.
patent: 5981445 (1999-11-01), Kirchnerova et al.
patent: 0 370 939 (1990-05-01), None
patent: 3-69506 (1991-03-01), None
patent: 06-239613 (1994-08-01), None
Hawley's Condensed Chemical Dictionary, Eleventh Edition, edited by Sax and Lewis, Sr. (Van Nostrand Reinhold Company, Ney York, NY, copyright 1987), Oct.-1989, p. 1038.*
Machine translation of JP 06-239613, Japan Patent Office, http://www6.ipdl.jpo.go.jp/Tokujitu/PAJdetail.ipdl?N0000=60&N0120=01&N2001=2&N3001=H06-239613, date Jan. 2003.*
Zarur, Andrey J., et al., “Reverse microemulsion synthesis of nanostructured complex oxides for catalytic combustion,” Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA,Nature, letters to nature, Jan. 6, 2000, pp. 65-67, vol. 403, www.nature.com, © 2000 MacMillan Magazines Ltd.
Zarur, Andrey J., et al., “Reverse Microemulsion-MediatedSynthesis and Structural Evolution of Barium Hexaaluminate Nanoparticles,” Department of Chemical Engineering, Massachusetts Insitute of Technology, Cambridge, Massachusetts 02139-4307, Received Jun. 23, 1999. In Final Form: Sep. 8, 1999.Langmuir2000, 16, pp. 3042-3049. 10.1021/la9908034 CCC:$19.00 © 2000 American Chemical Society, Published on Web Mar. 10, 2000.
Zarur. Andrey J., et al., “Phase Behavior, Structure, and Application of Reverse Microemulsions Stabilized by Nanionic Surfactants,” Department of Chemcial Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307. Received Nov. 15, 1999. In Final Form: Jul. 7, 2000.Langmuir2000, 16, pp. 9168-9176. 10.1021/la991488o CCC:$19.00 © 2000 American Chemical Society Published on Web Oct. 21, 2000.
M.A. Lopez-Quintela and J. Rivas, “Chemical Reactions in Microemulsions: A Powerful Method to Obtain Ultrafine Particles,”Journal of Colloid and Interface Science, 1993, month unknown 158, pp. 446-451.
Database WPI on EAST, week 199817, London: Derwent Publications Ltd., AN 1991-129609, AClass E37, JP 03069506 A (RICOH KK), Abstract, 1991.
Database JPO on EAST, JP403069506A, Copyright 1991, 1991, month unknown.

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