Patent ID: 6864026

Claim:
A photoconductive imaging member comprised of a supporting substrate, an optional blocking layer, a photogenerating layer, and a charge transport layer, and wherein said charge transport layer is comprised of a polycarbonate given by the formula wherein R 1 is selected from the group consisting of hydrogen, alkyl of from about 1 to about 15 carbon atoms, a halogenated alkyl of from about 1 to about 15 carbon atoms, optionally further containing one or more heteroatoms selected from the group consisting of nitrogen oxygen, sulfur, silicon, and phosphorus, and an aryl or substituted aryl of from about 6 to about 30 carbon atoms; R 2 represents a divalent linkage of an alkylene with from about 1 to about 15 carbon atoms; Ar 3 and Ar 4 each independently represent aryl groups of from about 6 to about 30 carbon atoms; R 3 and R 4 are independently selected from the group consisting of hydrogen, alkyl of from about 1 to about 15 carbon atoms, aryl or substituted aryl of from about 6 to about 30 carbon atoms; L represents a divalent linkage, and wherein x and y represent the mole fractions of the repeating segments, and wherein x is from about 0.01 to about 1, and y is from about 0 to about 0.99.