Process for binding pigment particles to phosphor particles

Details Process for binding pigment particles to phosphor particles Process for binding pigment particles to phosphor particles

1986-11-28

1988-01-05

Bell, Janyce A.

Coating processes

Electrical product produced

Fluorescent or phosphorescent base coating

427 68, 427201, 427219, 4273722, B05D 506

Patent

active

047175907

ABSTRACT:
A process is disclosed for bonding pigment particles to phosphor particles. The process involves forming a relatively uniform blend of a phosphor, one or more pigments, colloidal silicon dioxide, and water, with the amount of water in the blend being no greater than about 10% by weight, and heating the blend at a temperature of at least about 150.degree. C. to produce a pigmented phosphor having an overcoating of silicon dioxide.

REFERENCES:
patent: 4287229 (1981-09-01), Watanabe et al.
patent: 4473634 (1984-09-01), Dodas et al.
patent: 4624861 (1986-11-01), Ugle et al.

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