Compositions – Inorganic luminescent compositions – Compositions containing halogen; e.g. – halides and oxyhalides
Patent
1997-02-28
1998-05-05
Bonner, Melissa
Compositions
Inorganic luminescent compositions
Compositions containing halogen; e.g., halides and oxyhalides
423263, C09K 1183
Patent
active
057469440
ABSTRACT:
Monodisperse particulates of lanthanum/cerium/terbium phosphates, the average particle size of which ranging from 1 to 15 -microns and preferably from 2 to 6 microns, and having a dispersion index of less than 0.5, preferably less than 0.4, are well suited as green luminophors displaying enhanced brilliance or precursors thereof, and are prepared via precipitation with phosphate ions at a substantially constant pH below 2, from LaCeTb solutions.
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Bonner Melissa
Rhone-Poulenc Chimie
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