Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Patent
1990-12-19
1993-05-25
Thibodeau, Paul J.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
2523014S, 2523016R, 25230136, 313463, 313467, 313468, 427 68, 427 71, 427 73, 427157, 427201, 427220, 4273722, 428407, 428690, 428917, B32B 516
Patent
active
052138941
ABSTRACT:
A red pigment coated phosphor comprises a phosphor for color cathode ray tube and red pigment attached to said phosphor by an organic binder, wherein said organic binder is gellatin and casein. A process for preparation of a red pigment coated phosphor comprises the steps of: preparing three dispersions of red phosphor particles, red pigment particles and organic binder, respectively; uniformly mixing said three dispersions and agitating them sufficiently; adjusting pH of the mixture obtained; and adding a curing agent thereto, washing said mixture and then drying it. The red pigment coated phosphor of the present invention has a good dispersion and a good affinity for phosphor slurry.
REFERENCES:
patent: 3886394 (1975-05-01), Lipp
patent: 4152483 (1979-05-01), Kanda et al.
patent: 4219587 (1980-08-01), Oba et al.
patent: 4568635 (1986-02-01), Yamagami et al.
patent: 4684540 (1987-08-01), Schulze
patent: 4853254 (1989-08-01), Wolfe
Le Hoa T.
Samsung Electron Devices Co. Ltd.
Thibodeau Paul J.
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