Patent ID: 6866977
Filing Date: 2005-03-15
Classification: C08G,G03G

Abstract:
1. A photoconductive element comprising an electrically conductive support, an electrical barrier layer disposed over said electrically conductive support, and disposed over ad barrier layer, a charge generation layer capable of generating positive charge carriers when exposed to actinic radiation, said barrier layer comprising a polyamide-co-imide polymer that includes an aromatic tetracarbonylbisimide group, and which polymer corresponds to the formula: wherein: Q represents one or more groups selected from: (a) an alkylenedioxy, alkylenedicarbonyl, aromatic dicarboxyl, aromatic dicarbonyl, and aromatic diamino groups having from about 2 to about 36 carbon atoms; and where: Ar Ar R L Z X is O, C(CF x and y represent mole fractions, x being the mole fraction of the group that contains Ar