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AssigneeU.S. Philips Corporation
InventorJohannes De Boer
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An antistatic coating was provided on a substrate 10 by dispersing latex particles 12 from a polypyrrole compound in an aqueous solution of a hydrolyzed alkoxysilane compound, after which the dispersion was applied to the substrate. The hydrolyzed alkoxysilane compound was converted to silicon dioxide by means of a treatment at an elevated temperature, thereby forming a matrix 14 in which the latex particles 12 axe dispersed and by means of which the latex particles are adhesively secured to the substrate 10. The antistatic coating can particularly be used on the display screen of a cathode ray tube, and, if desired, said coating can simultaneously be used to reduce the light transmission of the display screen.
A method of manufacturing an antistatic coating on a substrate, characterized in that latex particles of a polypyrrole compound are dispersed in an aqueous solution of a hydrolyzed alkoxysilane compound, after which the dispersion is provided on the substrate and the hydrolyzed alkoxysilane compound is converted to silicon dioxide by means of a treatment at an elevated temperature and for a period of time effective to form a silicon dioxide matrix comprising polypyrrole latex on said substrate.
A method of manufacturing an antistatic coating on a substrate which comprise the steps of dispersing latex particles of a polypyrrole compound in an aqueous solution of a hydrolyzed alkoxysilane compound;
Dependencies are inferred from the claim text.