Cathode ray tube internal resistive coating and method of manufa

Electric lamp and discharge devices – Cathode ray tube – Envelope

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Details

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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