Graphite-containing conductive suspension for picture tubes

Details Graphite-containing conductive suspension for picture tubes Graphite-containing conductive suspension for picture tubes

1988-05-12

1990-04-17

Barr, Josephine

Compositions

Electrically conductive or emissive compositions

Elemental carbon containing

252502, 252506, 252510, H01B 106

Patent

active

049178229

ABSTRACT:
A conductive suspension for making contact to the inside of a picture tube consists of graphite, glass-frit powder, a binder, such as nitrocellulose, a solvent, such as isoamyl acetate. It can be applied prior to or after the aluminizing process by various techniques, such as brushing, printing, or spraying, and permits the bake-out process and the frit-sealing process to be performed in one step because it is permeable to organic substances. It is easy to remove from defective tube parts by conventional cleansing techniques.

REFERENCES:
patent: 3923697 (1975-12-01), Ellis
patent: 4038091 (1977-07-01), Francel et al.
patent: 4098611 (1978-07-01), Francel et al.
patent: 4099977 (1978-07-01), Francel et al.
patent: 4547310 (1985-10-01), Kasanami et al.
patent: 4613375 (1986-09-01), Forster et al.

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