Internal coating materials for a cathode ray tube

Details Internal coating materials for a cathode ray tube Internal coating materials for a cathode ray tube

1990-02-02

1992-11-03

Group, Karl

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

106470, 252506, 313479, C04B 1406

Patent

active

051603756

ABSTRACT:
A coating composition for a cathode ray tube, comprising the ingredients of: silica powder which has been fused during the process of flame spraying, said silica powder having an average particle size of about 0.02 to about 15 microns, electrically conductive graphite powder, with the pigment ratio of silica to graphite being within the range of 0.1 to 15, an organic thickening agent, water glass, and the balance water, said coating composition having a viscosity within the range of about 270 to about 850 cps; and wherein the coating provides markedly improved intercoat adhesion between overlapping coatings on the interior funnel of the cathode ray tube.

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patent: 4379762 (1983-04-01), Chiyoda et al.
patent: 4425377 (1984-01-01), Deal et al.
patent: 4623820 (1986-11-01), Deal et al.
patent: 4760310 (1988-07-01), Deyama et al.
patent: 4963751 (1990-10-01), Kano et al.

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