Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iiia metal or beryllium
Reexamination Certificate
2008-09-09
2008-09-09
Vanoy, Timothy C (Department: 1793)
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group iiia metal or beryllium
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.
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Corless Peter F.
Hazzard Lisa Swiszcz
Saint-Gobain Ceramics & Plastics, Inc.
Vanoy Timothy C
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