Phosphor containing barium and lead

Details Phosphor containing barium and lead Phosphor containing barium and lead

1991-05-23

1993-06-29

Thibodeau, Paul J.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

313486, 313489, 428404, B32B 516

Patent

active

052233413

ABSTRACT:
A phosphor of the type utilized in a fluorescent lamp and which includes core elements barium, lead, silicon, and oxygen where a continuous, conformal outer coating of hydration and solubilization resistant aluminum oxide, which is impermeable to migration of the core elements, surrounds the core whereby the outer surface of the core is substantially entirely free of the core elements.

REFERENCES:
patent: 4691140 (1987-09-01), Sakakibara et al.
patent: 4803400 (1989-02-01), Peters
patent: 4825124 (1989-04-01), Sigai
patent: 4950948 (1990-08-01), Peters
patent: 5049408 (1991-09-01), Klinedinst et al.
patent: 5051277 (1991-09-01), Sigai et al.

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