Patent ID: 8232032

Claim:
An electrophotographic imaging member comprising: a substrate; a charge generating layer disposed on the substrate; at least one charge transport layer disposed on the charge generating layer; an overcoat layer disposed on the charge transport layer, wherein the overcoat layer comprises a blend of a low surface energy modified polycarbonate polymer having a molecular weight of from about 20,000 to about 200,000 and a second low surface energy polymer, the low surface energy modified polycarbonate polymer being formed and selected from the group consisting of modified Bisphenol A polycarbonate of poly(4,4′-isopropylidene diphenyl carbonate) having a small fraction of polydimethyl siloxane in the polymer back bone and having the following formula (I): wherein x is an integer between about 40 and about 50 while y and z are integers representing a number of the respective repeating units, a modified Bisphenol Z polycarbonate of poly(4,4′-diphenyl-1,1′-cyclohexane carbonate) having a small fraction of polydimethyl siloxane in the polymer back bone and having the following formula (II): wherein x is an integer between about 40 and about 50 while y and z are integers representing a number of the respective repeating units, a modified Bisphenol C polycarbonate derived from the modification of poly(4,4′-isopropylidene diphenyl carbonate) having a small fraction of polydimethyl siloxane in the polymer back bone and having the following formula (III): wherein x is an integer between about 40 and about 50 while y and z are integers representing a number of the respective repeating units, a modification of the modified Bisphenol Z polycarbonate of poly(4,4′-diphenyl-1,1′-cyclohexane carbonate) having a small fraction of polydimethyl siloxane in the polymer back bone and having the following formula (IV): wherein x is an integer between about 40 and about 50 while y and z are integers representing a number of the respective repeating units, and mixtures thereof, and the second low surface energy polymer having a molecular weight of from about 20,000 to about 200,000 is being selected from the group consisting of formula (V): wherein a, b, p and q are integers representing a number of repeating units, formula (VI): wherein a, b, c, d, p and q are integers representing a number of repeating units, formula (VII): wherein a, b and p are integers representing the number of repeating units, formula (VIII): wherein a, b, c, p and q are integers representing the number of repeating units, formula (IX): wherein the polymer has an polyalkyl and polyaryl siloxane main chain, and wherein a, b and p are integers representing the number of repeating units, formula (X): wherein a, p and q are integers representing the number of repeating units, and formula (XI): where a, b and p are integers representing the number of repeating units, and mixtures thereof; and an anticurl back coating positioned on a second side of the substrate opposite to the charge generating and the charge transport layers.