Patent ID: 7718334
Filing Date: 2010-05-18
Classification: G03G

Abstract:
1. An electrophotographic imaging member, comprising: a substrate; a charge generating layer disposed over the substrate; a charge transport layer disposed over the generating layer having a charge transport material dispersed therein; and an overcoat layer disposed over the charge transport layer, wherein at least one of the charge transport layer and overcoat layer includes a porphine additive of the following modified structure: wherein X is a metal selected from the group consisting of Cu, Pd, V, Zn, Fe, Ga, Sn, Mn and mixtures thereof; or a porphine additive comprising a porphine material selected from the group consisting of 21H, 23H-Porphine, meso-Tetraphenylporphine-4,4′,4″,4′″-tetracarboxylic acid, 5,10,15,20-Tetra(4-pyridyl)-21H, 23H-porphine, 5,10,15,20-Tetraphenyl-21H, 23H-porphine, 5,10,15,20-Tetrakis(o-dichlorophenyl)-21H, 23H-porphine, 5,10,15,20-Tetrakis(4-trimethylammoniophenyl) porphine tetrachloride, Phytochlorin, 5,10,15,20-Tetrakis(3-hydroxyphenyl)-21H, 23H-porphine, 3,8,13,18-Tetramethyl-21H, 23H-porphine-2,7,12,17-tetrapropionic acid dihydrochloride, 3,7,12,17-Tetramethyl-21H, 23H-porphine-2,18-dipropionic acid dihydrochloride, 8,13-Bis(1-hydroxyethyl)-3,7,12,17-tetramethyl-21H, 23H-porphine-2,18-dipropionic acid, Pyropheophorbide-α-methyl ester, N-Methyl Mesoporphyrin IX, 8,13-Bis(vinyl)-3,7,12,17-tetramethyl-21H, 23H-porphine-2,18-dipropionic acid, Uroporphyrin 1 dihydrochloride, 5,10,15,20-Tetrakis (1-methyl-4-pyridinio) porphine tetra (p-toluencsulfonate), and mixtures thereof; and wherein the porphine additive is present in an amount of from about 0.001 percent to about 30 percent by weight of total solids in the at least one of the charge transport layer and overcoat layer.