Electrophotographic recording member and process of producing same

Claim 1

THE METHOD OF PRODUCING AN ELECTROPHOTOGRAPHIC RECORDING MEMBER WHICH COMPRISES COATING A SUBSTRATE WITH A SUSPENSION OF FINELY DIVIDED ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR FROM THE GROUP CONSISTING OF THE OXIDES, IODEDES, SELENIDES, SULFIDES AND TELLURIDES OF ZINC, ANTIMONY, ALUMINUM, BISMUTH, CADMIUM, MERCURY, MOLYBDENUM AND LEAD, SELENIUM, ARSENIC TRISULFIDE, LEAD CHROMATE AND CADMIUM ARSENIDE IN AN AQUEOUS MEDIUM CONTAINING FROM 45% TO 65% BY WEIGHT OF TOTAL RESIN SOLIDS PRESENT OF A MELAMINE-FORMALDEHYDE RESIN HAVING AT LEAST 2 MOLS OF FORMALDEHYDE PER MOL OF MELAMINE CONDENSED THEREIN AND FROM 35% TO 65% BY WEIGHT OF TOTAL RESIN SOLIDS PERSENT OF A THERMOPLASTIC RESIN FROM THE GROUP CONSISTING OF VINYL ACETATE HOMOPOLYMERS, VINYL ACETATE OCTYLACRYLATE COPOLYMERS, VINYL ACETATE VINYL CHLORIDE COPOLYMERS, VINYLIDENE CHLORIDE VINYL CHLORIDE COPOLYMERS, VINYLIDENE CHLORIDE ACRYLONITRILE COPOLYMERS, ACRYLONITRILE-BUTADIENE COPOLYMERS, STYRENE-BUTADIENE COPOLYMERS, INTERPOLYMERS OF 2-ETHYLHEXYL ACRYLATE, STYRENE, ACRYLONITRILE AND METHACRYLIC ACID, THE RATIO OF SAID PHOTOCONDUCTOR TO SAID RESINS IN SAID SUSPENSION, ON A DRY BASIS, BEING WITHIN THE RANGE OF FROM 1 TO 1 TO 8 TO 1 PARTS BY WEIGHT, AND THEREAFTER HEATING THE COATED SUBSTRATE TO EFFECT CURING OF THE MELAMINE-FORMELDEHYDE RESIN AND PRODUCE A PHOTO-CONDUCTIVE INSULATING LAYER HAVING THE PHOTOCONDUCTOR PARTICLES IMBEDDED THEREIN, SAID LAYER BEING CONTINUOUS AND FIRMLY BONDED TO THE SUBSTRATE.

Claim 2

THE METHOD OF PRODUCING AN ELECTROPHOTOGRAPHIC RECORDING MEMBER WHICH COMPRISES COATING A SUBSTRATE WITH A SUSPENSION OF FINELY DIVIDED ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR FROM THE GROUP CONSISTING OF THE OXIDES, IODEDES, SELENIDES, SULFIDES AND TELLURIDES OF ZINC, ANTIMONY, ALUMINUM, BISMUTH, CADMIUM, MERCURY, MOLYBDENUM AND LEAD, SELENIUM, ARSENIC TRISULFIDE, LEAD CHROMATE AND CADMIUM ARSENIDE IN AN AQUEOUS MEDIUM CONTAINING FROM 45% TO 65% BY WEIGHT OF TOTAL RESIN SOLIDS PRESENT OF A MELAMINE-FORMALDEHYDE RESIN HAVING AT LEAST 2 MOLS OF FORMALDEHYDE PER MOL OF MELAMINE CONDENSED THEREIN AND FROM 35% TO 65% BY WEIGHT OF TOTAL RESIN SOLIDS PERSENT OF A THERMOPLASTIC RESIN FROM THE GROUP CONSISTING OF VINYL ACETATE HOMOPOLYMERS, VINYL ACETATE OCTYLACRYLATE COPOLYMERS, VINYL ACETATE VINYL CHLORIDE COPOLYMERS, VINYLIDENE CHLORIDE VINYL CHLORIDE COPOLYMERS, VINYLIDENE CHLORIDE ACRYLONITRILE COPOLYMERS, ACRYLONITRILE-BUTADIENE COPOLYMERS, STYRENE-BUTADIENE COPOLYMERS, INTERPOLYMERS OF 2-ETHYLHEXYL ACRYLATE, STYRENE, ACRYLONITRILE AND METHACRYLIC ACID, THE RATIO OF SAID PHOTOCONDUCTOR TO SAID RESINS IN SAID SUSPENSION, ON A DRY BASIS, BEING WITHIN THE RANGE OF FROM 1 TO 1 TO 8 TO 1 PARTS BY WEIGHT, AND THEREAFTER HEATING THE COATED SUBSTRATE TO EFFECT CURING OF THE MELAMINE-FORMELDEHYDE RESIN AND PRODUCE A PHOTO-CONDUCTIVE INSULATING LAYER HAVING THE PHOTOCONDUCTOR PARTICLES IMBEDDED THEREIN, SAID LAYER BEING CONTINUOUS AND FIRMLY BONDED TO THE SUBSTRATE.