Composition forming an improved conductive film on a cathode ray tube front plate comprises pigment particles, a conductive polymer and a silicon dioxide

摘要

Composition for forming a conductive film comprises (a) conductive black pigment particles; (b) pigment particles adjusting the transmission of light of various wavelengths; (c) a conductive polymer; and (d) a silicon dioxide comprising a silicon alkoxide or one of its oligomers, (a) and (b) being uniformly distributed in and bonded to a network of an (in)organic composite sol. An Independent claim is also included for preparation of such a composition comprising (i) dispersing (a), (c) and (d) in an organic solvent mixture to give an (in)organic composite sol; (ii) dispersing (b), a dispersant and in an organic solvent mixture to give a pigment mixture; and (iii) mixing (i) and (ii) and making the mixture into a dispersion using ultrasound.