Pigment-attached phosphor

Details Pigment-attached phosphor Pigment-attached phosphor

1989-12-19

1991-08-20

Lesmes, George F.

Stock material or miscellaneous articles

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

Particulate matter

25230133, 25230136, 2523014R, 428403, 428917, 524 22, 524211, 524437, 525498, C08L 8900, C09K 1102

Patent

active

050413341

ABSTRACT:
A pigment-attached phosphor in which pigment particles are attached to the surfaces of phosphor particles by a binder, the binder being 0.01 to 1.0 parts by weight and preferably 0.05 to 0.80 parts by weight of gelatin and 0.01 to 0.5 parts by weight and preferably 0.02 to 0.40 parts by weight of urea resin, all against 100 parts by weight of phosphor, the weight ratio of the gelatin and urea resin being within a range of 1:1 to 10:1 and preferably 1:1 to 8:1. The gelatin and urea resin ensure a strong and better attachment of the pigment particles to the surfaces of the phosphor particles.

REFERENCES:
patent: 1732533 (1928-10-01), Redman
patent: 2133335 (1938-10-01), Wilson et al.
patent: 2585967 (1952-02-01), Schibler
patent: 3881941 (1975-05-01), Kernohan
patent: 3886394 (1975-05-01), Lipp
patent: 4021588 (1977-05-01), Royce et al.
patent: 4049845 (1977-09-01), Lozier et al.
patent: 4172920 (1979-10-01), Kanda et al.

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