Process for preparing electrostatographic photosensitive device comprising sodium additives and trigonal selenium particles
AssigneeXerox Corporation
InventorKenneth H. Maxwell, deceased
Life of this patent
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Abstract
A process for the preparation of an electrostatographic photosensitive device comprising combining a sodium additive comprising sodium carbonate, sodium bicarbonate, sodium selenite, sodium hydroxide or mixtures thereof with trigonal selenium particles, an organic resin binder and a solvent for the binder to form a milling mixture, milling the milling mixture to form a uniform dispersion, applying the dispersion to a substrate in an even layer and drying the layer.
Claims16
A process for preparing an electrostatographic photosensitive device comprising combining a sodium additive selected from the group consisting of sodium carbonate, sodium bicarbonate, sodium selenite, sodium hydroxide and mixtures thereof with trigonal selenium particles substantially free of sodium, an organic resin binder and a solvent for said binder to form a milling mixture, milling said milling mixture to form a uniform dispersion, applying said dispersion to a substrate in an even layer having a sodium content identical to the sodium content of said milling mixture, and drying said layer.
A process for preparing an electrostatographic photosensitive device comprising combining a concentrated aqueous solution of a sodium additive selected from the group consisting of sodium carbonate, sodium bicarbonate, sodium selenite, sodium hydroxide and mixtures thereof with trigonal selenium particles substantially free of sodium, an organic resin binder and a solvent for said binder to form a milling mixture containing less than about 5 percent water based on the total weight of said trigonal selenium, milling said milling mixture to form a uniform dispersion, applying said dispersion to a substrate in an even layer having a sodium content identical to the sodium content of said milling mixture, and drying said layer.
A process for preparing an electrostatographic photosensitive device comprising combining a sodium additive in anhydrous form selected from the group consisting of sodium carbonate, sodium bicarbonate, sodium selenite and mixtures thereof with trigonal selenium particles substantially free of sodium, an organic resin binder and a solvent for said binder to form a milling mixture substantially free of water, milling said milling mixture to form a uniform dispersion, applying said dispersion to a substrate in an even layer having a sodium content identical to the sodium content of said milling mixture, and drying said layer.
Dependencies are inferred from the claim text.