Abstract: A photoreceptor including: (a) a substrate; (b) a charge generating layer; and (c) a charge transport layer including a charge transport material and a rotaxane material.

Abstract: A photoconductive imaging member comprised of a supporting substrate, a hole blocking layer thereover, a photogenerating layer and a charge transport layer, and wherein the hole blocking layer is comprised of a metal oxide prepared by a sol-gel process.

Abstract: A photoconductive imaging member comprised of a supporting substrate, a hole blocking layer, an optional adhesive layer, a photogenerator layer, and a charge transport layer, and wherein said blocking layer is comprised of a polyhaloalkylstyrene.

Abstract: A photoconductive imaging member comprised of a hydroxygallium phthalocyanine photogenerator layer, a charge transport layer, a barrier layer, a photogenerator layer comprised of a mixture of bisbenzimidazo(2,1-a-1',2'-b)anthra(2,1,9-def:6,5,10-d'e'f')diisoquinoline -6,11-dione and bisbenzimidazo(2,1 -a:2',1'-a)anthra(2,1,9-def:6,5,10-d'e'f')diisoquinoline-10,21-dione, and thereover a charge transport layer.

Abstract: A process for fabricating an electrophotographic imaging member including providing a supporting substrate, forming a charge generating layer on the substrate, applying a coating composition to the charge generating layer, the coating composition including a film forming charge transporting polymer dissolved in methylene chloride and a solvent selected from the group consisting of 1,2 dichloroethane, 1,1,2 trichloroethane or mixtures thereof, the charge transporting polymer having a backbone comprising active arylamine moieties along which charge is transported, and drying the coating to form a charge transporting layer.

Abstract: A process for the preparation of hydroxygallium phthalocyanines which comprises hydrolyzing a gallium phthalocyanine precursor pigment by dissolving said hydroxygallium phthalocyanine in a strong acid and then reprecipitating the resulting dissolved pigment in basic aqueous media; removing any ionic species formed by washing with water, concentrating the resulting aqueous slurry comprised of water and hydroxygallium phthalocyanine to a wet cake; removing water from said slurry by azeotropic distillation with an organic solvent, and subjecting said resulting pigment slurry to mixing with the addition of a second solvent to cause the formation of said hydroxygallium phthalocyanine polymorphs.

Abstract: Photoconductive imaging members comprised of an alkoxy-bridged metallophthalocyanine dimer as a charge generator material, wherein said dimer is of the formula C.sub.32 H.sub.16 N.sub.8 MOROMN.sub.8 H.sub.16 C.sub.

Abstract: An imaging member comprised of supporting substrate, a photogenerator layer and a charge transport layer comprised of charge transport molecules dispersed in a resin binder comprised of styrene-arylmethacrylate polymers, styrene-alkylmethacrylate polymers, styrene-diene polymers, alpha-methylstyrene polymers, or vinyl polymers.

Abstract: A method of making a photoreceptor charge transport layer involves the steps of applying at least one macrocyclic carbonate oligomer to a supporting surface, and in situ polymerizing the at least one macrocyclic oligomer to form at least one high molecular weight polymer; the at least one macrocyclic oligomer being a cocyclic or ter-cyclic oligomer comprising bisphenol glycol bischloroformate moieties and dihydroxy arylamine moieties.

Abstract: A process for the preparation of aryl amine polycondensation polymers useful in electrophotographic imaging members, which process comprises the interfacial polymerization of an aryl amine diol dissolved in an alkaline aqueous phase with a bifunctional acid halide dissolved in an organic solvent, resulting in polymers with high molecular weight and narrow molecular weight distribution (M.sub.w /M.sub.n) of from between about 50,000 to about 350,000, and a M.sub.w /M.sub.n of from about 1 to about 4.

Abstract: A process for the preparation of photoconductive imaging members which comprises coating a supporting substrate with a photogenerator layer comprised of photogenerating pigments, and subsequently applying to the photogenerating layer a mixture comprised of charge transport molecules and cyclic oligomers, and wherein said mixture is heated to obtain polycarbonate resin binder from said cyclic oligomers.

Abstract: Bishaloformate derivatives of diols, especially bisphenols, are used in a polycondensation reaction under low temperature interfacial polycondensation conditions to obtain high molecular weight polycarbonates or alternating copolycarbonates which are useful as photoreceptor materials.

Abstract: An abrasion resistant photoconductive imaging member comprised of a supporting substrate, a photogenerating layer and a charge transport layer comprised of charge transport components dispersed in a fluorinated polycarbonate.

Abstract: Block copolymers of the formula ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 are independently selected from the group consisting of hydrogen, alkyl and aryl; k, j, m and n represent the number of repeating segments, and imaging members thereof.

Abstract: Polycarbonatefluorosiloxane polymers of the following formula ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 are independently selected from the group consisting of hydrogen, alkyl and aryl; k,j,m and n represent the number of repeating segments.

Abstract: Bisphenol-based polyesters and a process for their preparation having a first step of diacetylizing the bisphenol then polymerizing the diacetate with an aromatic diacid and an aliphatic diacid are disclosed. The bisphenol-based polyesters can be used as binder components in a charge transport or charge generation layers of an organic photoreceptor.

Abstract: A polyarylamine polymer represented by formula ##STR1## wherein: n is between about 5 and about 5,000, or 0 if p>0,o is between about 0 and about 5,000, or is 0 if p>0 or n=0,p is between about 2 and about 100, or is 0 if n>0,X' and X" are indendently selected from a group having bifunctional linkages,Q is a divalent group derived from certain hydroxy terminated arylamine reactants,Q' is a divalent group derived from a hydroxy terminated polyarylamine containing the group defined for Q and having a weight average molecular weight between about 1000 and about 80,000and the weight average molecular weight of the polyarylamine polymer is between about 10,000 and about 1,000,000.

Abstract: An ionographic imaging member containing a conductive layer and a uniform and continuous dielectric imaging layer free of voids, the imaging layer having a dielectric constant of from about 1.5 to about 40 and a thickness of at least about 45 micrometers, the thickness divided by the dielectric constant having a value of from about 30 to about 60 micrometers. This member may be used in an ionographic imaging process.

Abstract: A photoresponsive imaging member comprised of a photogenerating layer, and a charge transport layer comprised of charge transport molecules and a resin binder mixture comprised of a polycarbonate and an elastomeric block copolymer.

Abstract: Block copolymers of the formula ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 are independently selected from the group consisting of hydrogen, alkyl and aryl; k, j, m and n represent the number of repeating segments, and imaging members thereof.