Cathode ray tube internal resistive coating and method of manufa

Details Cathode ray tube internal resistive coating and method of manufa Cathode ray tube internal resistive coating and method of manufa

1978-05-08

1979-08-07

Padgett, Benjamin R.

Electric lamp and discharge devices

Cathode ray tube

Envelope

252506, 252510, 252519, H01J 3108, H01B 108

Patent

active

041639197

ABSTRACT:
An internal resistive coating for a cathode ray tube is derived from a suspension which includes electrically conductive particles, electrically insulative particles, silicate solids and a wetting agent of the anionic class. The internal resistive coating is made by mixing the insulative particles, a silicate solution and water, milling the mixture, adding electrically conductive particles to the mixture, milling the electrically conductive particles and mixture to provide a suspension, preparing a stock solution of wetting agent of the anionic class, and stirring the wetting agent stock solution into the suspension to provide a wall dispersed resistive coating suspension.

REFERENCES:
patent: 3791546 (1974-02-01), Maley et al.
patent: 4041347 (1977-08-01), Deal et al.

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