Patent ID: 7638249
Filing Date: 2009-12-29
Classification: G03G

Abstract:
1. An electrophotographic imaging member, comprising: a substrate; an undercoat layer disposed on the substrate, wherein the undercoat layer comprises: a metal oxide dispersed therein, the metal oxide being surface treated with sodium metaphosphate and having a moisture content of less than 5 percent by weight of the total weight of the metal oxide; a polyol resin selected from the group consisting of acrylic polyols, polyglycerols and mixtures thereof; and an aminoplast resin; and at least one imaging layer formed on the undercoat layer; wherein the polyol resin is present in an amount of from about 5% to about 80% by weight of the total weight of the undercoat layer; and wherein the metal oxide is present in an amount of from about 10% to about 90% by weight of the total weight of the undercoat layer.