Nanoporous ultrafine α-alumina powders and sol-gel...

Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iiia metal or beryllium

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C423S625000, C423S630000, C423S631000, C977S773000, C977S777000, C977S811000

Reexamination Certificate

active

10406085

ABSTRACT:
The present invention provides α-alumina powders comprising α-alumina particles of which at least 80% of the α-alumina particles have a particle size of less than 100 nm. The invention also provides slurries, particularly aqueous slurries, which comprise α-alumina powders of the invention. The invention further provides methods of manufacturing α-alumina powders and α-alumina slurries of the invention and methods of polishing using same.

REFERENCES:
patent: 4915710 (1990-04-01), Miyazaki et al.
patent: 5389352 (1995-02-01), Wang
patent: 6258137 (2001-07-01), Garg et al.
patent: 6461584 (2002-10-01), Wen et al.
patent: 6521203 (2003-02-01), Mohri et al.
patent: 6752692 (2004-06-01), Wada et al.
patent: 6841497 (2005-01-01), Krell et al.
patent: 2002/0052288 (2002-05-01), Krell et al.
patent: 2003/0098529 (2003-05-01), Drumm et al.
patent: 2003/0185746 (2003-10-01), Kajihara et al.
patent: 2005/0008565 (2005-01-01), Maki et al.
patent: 2005/0135995 (2005-06-01), Wang
patent: 2005/0214201 (2005-09-01), Maruno et al.
patent: WO-00/69790 (2000-11-01), None
patent: WO 00/69790 (2000-11-01), None
patent: WO-01/25366 (2001-04-01), None
patent: WO-01/36554 (2001-05-01), None
patent: WO-02/081124 (2002-10-01), None
patent: WO 03/044122 (2003-05-01), None
Janbey, A. et al., “A new chemical route for the synthesis of nano-cryastalline Al2O3powder,” J. of the European Ceramic Society 21 (2001) 2285-2289.
Zeng, W.M., et al., “A New Sol-Gel Route Using Inorganic Salt Of Synthesis A12O3Nanopowders,” NanoStructured MAterials, vol. 10, No. 4 (1998) 542-550.
Rajendran, S., “Production of ultrafine alpha alumina powders and fabrication of fine grained strong ceramics,” J. of MAterials Science 29 (1994) 5664-5672.
Janbey et al., “A new chemical route for the synthesis of nano-crystalline α-Al2O3powder,”Journal of the European Ceramic Societyvol. 21, pp. 2285-2289 (2001).
Rajendran, “Production of ultrafine alpha alumina powders and fabrication of fine grained strong ceramics,”Journal of Materials Sciencevol. 29, pp. 5664-5672 (1994).
Zeng et al., “A New Sol-Gel Route Using Inorganic Salt For Synthesizing Al2O3Nanopowders,”NanoStructured Materialsvol. 10(4), pp. 543-550 (1998).
Kamiya et al., “Formation of α-Alumina Around 500°C. in Alkoxy-Derived Alumina Gels Under Ambient Pressure-Effects of Starting Solution Composition and Seeding,” Journal of Sol-Gel Science and Technology 20:275-285 (2001).
Ma et al., “Synthesis and Processing of Nano-α-Al2O3Powders,” Key Engineering Materials, Aedermannsdorf, vol. 206-213:43-46 (2001).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Nanoporous ultrafine α-alumina powders and sol-gel... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Nanoporous ultrafine α-alumina powders and sol-gel..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nanoporous ultrafine α-alumina powders and sol-gel... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3959480

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.