Cathode-ray tubes and coating materials therefor

Details Cathode-ray tubes and coating materials therefor Cathode-ray tubes and coating materials therefor

1986-01-21

1988-07-26

DeMeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Envelope

313477HC, H01J 2988, H01J 2992

Patent

active

047603100

ABSTRACT:
A cathode-ray tube is coated on the inner surface with a coating material which contains, in a weight ratio based on solid, 10 to 22% of graphite, 30 to 50% of a metal oxide, 2 to 9% of a surface treating agent and 25 to 42% of water glass, and in which at least 18% of graphite powders in its simplest form suspended in said coating material have a particle size of at least 1 micron.

REFERENCES:
patent: 3791546 (1974-02-01), Maley et al.
patent: 4153857 (1979-05-01), Delsing et al.
patent: 4379762 (1983-04-01), Chiyoda et al.
patent: 4602187 (1986-07-01), Fischman et al.

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