Crystallites of cerium/lanthanum/terbium phosphates from insolub

Details Crystallites of cerium/lanthanum/terbium phosphates from insolub Crystallites of cerium/lanthanum/terbium phosphates from insolub

1994-09-12

1996-12-03

Bonner, Melissa

Compositions

Inorganic luminescent compositions

Compositions containing halogen; e.g., halides and oxyhalides

423263, C09K 1181

Patent

active

055804900

ABSTRACT:
Needle-shaped solid crystallites of specific LaCeTb phosphates, well suited for the production of green phosphors therefrom, are essentially pure white in color after calcination at 900.degree. C. and have the formula (I):

REFERENCES:
patent: 3507804 (1970-04-01), Ropp
patent: 3634282 (1972-01-01), Denis et al.
patent: 4423349 (1983-01-01), Nakajima et al.
patent: 5091110 (1992-02-01), Fan et al.
patent: 5116532 (1992-05-01), Chau et al.
patent: 5132042 (1992-07-01), Chau et al.
patent: 5340556 (1994-08-01), Collin et al.
World Patents Index Latest, Derwent Publication Ltd., London, GB; AN 84-291413 & JP-A-59 179 578 (Hitachi), Oct. 12, 1984.
World Patents Index Latest, Derwent Publication Ltd., London, GB; AN 82-80569E & JP-A-57 133 182 (Tokyo Shibaura), Aug. 17, 1982.

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