Abstract: A sealing glass paste which comprises at least one sealing glass frit powder and an aqueous binder which comprises an aqueous solution, dispersion or emulsion of a polymeric material and a water soluble oxidant which decomposes at a temperature of below 475° C., the polymeric material burning out or decomposing at a temperature of below 475° C., in the presence of the oxidant, to leave less than 2% of residues based on the total weight of the solids content of the binder. The sealing glass pastes may be used in the assembly of cathode ray tubes. The aqueous binder system which is used results in low carbonaceous residue levels after firing and does not contain volatile organic solvents. Furthermore, using this aqueous binder system sealing glass pastes can be prepared with sealing glasses which include PbO therein.

Abstract: A process for the metallization of a phosphor screen which process comprises the steps of: i)applying to a process screen a coating composition comprising a poly(acrylate) or poky(methacrylate) dissolved in an acrylate or methacrylate monomer, the said composition including an initiator therein; ii) subjecting the coated to irradiation in order to form a polymeric film coating, iii)depositing a layer of metal upon the coated screen to form a composite; and iv) heating the composite to a temperature above the decomposition temperature of the film coating in order to decompose and/or volatilize the polymeric film coating.