Compositions – Inorganic luminescent compositions – Tungsten containing
Patent
1988-11-21
1991-09-10
Lovering, Richard D.
Compositions
Inorganic luminescent compositions
Tungsten containing
106450, 501 1, 501 12, 501103, 501134, 501152, 423608, 423609, 423610, 423335, 423592, 2523156, 252314, B01J 1300, G01G 2304, G01G 2502
Patent
active
050471740
ABSTRACT:
Stable metal oxide sols comprising an anhydrous alcohol having metal oxide particles colloidally dispersed therein is disclosed. This sol composition is formed by the hydrolysis of a metal alkoxide to form metal oxide particles, removal of the particles from the resulting mother liquor from such a reaction, and the redispersing of the metal oxide powders in an anhydrous alcohol solvent.
REFERENCES:
patent: 1906149 (1933-04-01), Gardner
patent: 3312630 (1967-04-01), Vanik et al.
patent: 3625856 (1971-12-01), Schaefer
patent: 4543341 (1985-09-01), Barringer et al.
patent: 4770813 (1988-09-01), Watanabe et al.
Fegley et al., "Processing and Characterization of ZrO.sub.2 and Y-Doped ZrO.sub.2 Powders", Ceramic Bulletin, vol. 64, No. 8, 1985.
Chandra, "Qualitative and Kinetic Study . . . ", Ceramic Bulletin, vol. 64, No. 8, 1985.
Derwent Abs. #87-154033/22 of JP-232592, Sumitomo Metal Mining KK (18.10.85).
Derwent Abs. #87-318085/45 of JP-070052, Sumitomo Metal Mining KK (28.03.86).
Akzo America Inc.
Covert John M.
Fennelly Richard P.
Lovering Richard D.
Morris Louis A.
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