Patent ID: 7867677

Claim:
An imaging member comprising, in sequence, a substrate, a charge generation layer, a first charge transport layer, a second charge transport layer, and an optional overcoat layer; in which the first charge transport layer is formed from a first CTL formulation comprising a first solvent, an aromatic monoamine, and a first polymer containing either hydroxyl groups or carboxyl groups; and in which the second charge transport layer is formed from a second CTL formulation comprising a second solvent, an aromatic diamine, a second polymer, and an antioxidant; wherein the aromatic monoamine is represented by the following formula I T : wherein each n T is independently an integral number and 1≦n T ≦5; and each R T is independently selected from the group consisting of hydrogen, C 1 -C 6 alkyl, halo groups, and mixtures thereof; wherein the aromatic diamine is represented by the following formula I D : wherein each n D is independently an integral number and 1≦n D ≦5; and each R D is independently selected from the group consisting of hydrogen, C 1 -C 6 alkyl, halo groups, and mixtures thereof; and wherein the first polymer is either (a) a polymeric film forming reaction product of at least vinyl chloride, vinyl acetate, and hydroxyalkyl acrylate; or (b) a terpolymer of vinyl chloride, vinyl acetate, and vinyl alcohol.