Coating processes – Electrical product produced – Fluorescent or phosphorescent base coating
Patent
1978-05-17
1980-01-01
Silverberg, Sam
Coating processes
Electrical product produced
Fluorescent or phosphorescent base coating
427 68, 427215, 2523016S, B05D 506
Patent
active
041817532
ABSTRACT:
A process is provided for producing electroluminescent powders for use in information display panels of the type in which a monoparticle layer of electroluminescent powder is embedded in a high dielectric constant resin between two electrodes. The powders are zinc sulfide powders coactivated with aluminum and capable of emitting white light, as well as light of various colors. In the production of these powders they are treated to form an impermeable inorganic surface coating on the powder particles. The coating may be zinc phosphate or glass.
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Brown Boveri & Cie Aktiengesellschaft
Murray Thomas H.
Silverberg Sam
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