Patent ID: 8367286
Filing Date: 2013-02-05
Classification: G03G

Abstract:
1. A photoconductor consisting of and in sequence a supporting substrate, a ground plane layer, an undercoat layer thereover consisting of a crosslinked interpolymer network mixture of a metal oxide, a urea formaldehyde resin and a phenolic formaldehyde resin; a photogenerating layer, and a hole transport layer; wherein the phenolic formaldehyde resin is selected from the group consisting of a phenol, p-tert-butylphenol and cresol formaldehyde resin, a 4,4′-(1-methylethylidene)bisphenol formaldehyde resin, a phenol and cresol formaldehyde resin, or a phenol and p-tert-butylphenol formaldehyde resin; the metal oxide is selected from the group consisting of titanium oxide, zinc oxide, tin oxide, aluminum oxide, silicone oxide, zirconium oxide, indium oxide, and molybdenum oxide; the photogenerating layer consists of a pigment and a resin binder; the hole transport layer consists of aryl amine molecules and a resin binder; and wherein the crosslinking value is from about 40 to about 90 percent, and wherein the urea formaldehyde resin consists of a methylated urea formaldehyde resin, an n-butylated urea formaldehyde resin or an isobutylated urea formaldehyde resin.