Matches 151 - 200 out of 260 < 1 2 3 4 5 6 >
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5192633 Laminate type photosensitive material for electrophotography  
Disclosed is a laminate type photosensitive material for the electrophotography, which comprises a charge-generating layer and a charge-transporting layer, which are formed on an electroconductive...
5178980 Photoconductive imaging members with a fullerene compound  
An imaging member comprised of a supporting substrate, a photogenerator layer optionally dispersed in a resin binder, and a charge transport layer comprised of a fullerene or fullerenes optionally...
5175258 Processes for the preparation of bisazo photogenerating pigments using an annealing step  
A process for the preparation of photogenerating pigments which comprises the reaction of a diaminofluorenone with an alkali nitrite, an acid, and a tetrafluoroborate; thereafter reacting the...
5166021 Photoconductive imaging members with polycarbonate fluorosiloxane polymer overcoatings  
Polycarbonatefluorosiloxane polymers of the following formula ##STR1## wherein R 1 , R 2 , and R 3 are independently selected from the group consisting of hydrogen, alkyl and aryl; k,j,m and n...
5162183 Overcoat for imaging members  
A surface layer on an imaging member has a surface roughness which reduces the force necessary for blade cleaning, reduces blade edge truck, reduces blade/substrate friction, inhibits the formation...
5139909 Perinone photoconductive imaging members  
A photoconductive imaging member comprised of an unsymmetrical perinone and a charge transport layer.
5139910 Photoconductive imaging members with bisazo compositions  
Bisazo compounds essentially as represented by the formula of FIG. 9 wherein Cp is an azoic coupler.
5126223 Ozone resistant electrophotographic photosensitive member  
An electrophotographic photosensitive member having a photosensitive layer laminated on an electroconductive support, characterized in that the photosensitive layer contains a biphenyl compound...
5122429 Photoconductive imaging members  
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...
5120628 Transparent photoreceptor overcoatings  
Highly transparent charge injection enabling species for electrophotographic overcoatings include copper (I) compounds dispersed throughout the overcoating or complexed into a charge transport...
5116703 Functional hybrid compounds and thin films by sol-gel process  
Materials and a process for producing the materials are useful in electrophotographic imaging members. The materials are produced through a sol-gel process wherein a hybrid material, which may be...
5106713 Photoconductive imaging members with unsymmetrical squaraine compositions  
The cyclized squaraines essentially as represented by the formula ##STR1## wherein R 1 and R 2 are independently selected from alkyl and hydrogen; R 3 and R 4 are independently selected from...
5096795 Multilayered photoreceptor containing particulate materials  
In an electrophotographic imaging device, material for exposed layers and members has particles homogeneously dispersed therein. The particles provide coefficient of surface contact friction...
5077161 Imaging members with bichromophoric bisazo perylene photoconductive materials  
Disclosed is an imaging member which comprises a conductive substrate and a photogenerating layer containing a compound selected from the group consisting of: ##STR1## and mixtures thereof, wherein...
5077160 Photoconductive imaging members with fluorinated squaraine compositions  
The fluorinated squaraines ##STR1## wherein R 1 , R 2 and R 3 are independently selected from alkyl or aryl; X is hydrogen, hydroxy, alkyl, alkoxy or halogen; n is a number of 1 to about 3; and m...
5069993 Photoreceptor layers containing polydimethylsiloxane copolymers  
An exposed layer in an electrophotographic imaging member is provided with increased resistance to stress cracking and reduced coefficient of surface friction, without adverse effects on optical...
5066796 Electrophotographic imaging members with bichromophoric bisazo phthalocyanine photoconductive materials  
Disclosed is an imaging member which comprises a conductive substrate and a photogenerating layer containing a compound selected from the group consisting of: ##STR1## and mixtures thereof, wherein...
5059503 Electrophotosensitive material with combination of charge transfer materials  
The present invention provides an electrophotosensitive material containing the diamine derivative represented by the following general formula (I) and at least one selected from the group...
5055366 Polymeric protective overcoatings contain hole transport material for electrophotographic imaging members  
A protective overcoating layer for an electrophotographic imaging device prevents crystallization and leaching of charge transport compounds in a charge transport layer of the device, while also...
5055367 Imaging members with bichromophoric bisazo perinone photoconductive materials  
Disclosed is an imaging member which comprises a conductive substrate and a photogenerating layer containing a compound selected from the group consisting of: ##STR1## and mixtures thereof, wherein...
5030533 Photoconductive imaging members with liquid crystalline thermotropic polymers  
A photoresponsive imaging member comprised of a photogenerating layer, and a charge transport layer comprised of hole transport molecules dispersed in a resin binder mixture wherein at least one of...
5028502 High speed electrophotographic imaging system  
An electrophotographic imaging process including providing an electrophotographic imaging member containing a change generating layer and a charge transport layer, the charge transport layer...
5017449 Electrophotographic photosensitive member with substituted nylon interlayer  
An electrophotographic photosensitive member comprises an electroconductive support, and at least an undercoating layer, a charge generation layer and a charge transport layer, laid successively on...
5008169 Photoconductive imaging members with polyphosphazenes  
A photoconductive imaging member comprised of a supporting substrate, a ground plane layer, a hole blocking-adhesive layer comprised of a polyphosphazene, including polyorganophosphazenes, a...
5004663 Photoconductive imaging members with polyphosphazene binders  
A photoconductive imaging member comprised of a photogenerating layer and a hole transport layer, including aryl amines dispersed in resin binders containing a polyphosphazene, such as...
5002845 Electrophotographic image forming member and method and apparatus for transferring electrophotographic images formed on the member  
An electrophotographic image forming member for forming color images including an organic photosensitive layer sandwiched between a dielectric layer and a conductive layer. The photoconductive...
4999268 Function separated electrophotographic photoreceptor containing selenium  
An electrophotographic photoreceptor is disclosed, comprising a light-sensitive layer on an electrically conductive substrate, wherein the light-sensitive layer comprises particles of selenium or a...
4988595 Charge transport layer containing different aromatic diamine active charge transport compounds  
An electrophotographic imaging member containing a charge generating layer and a charge transport layer, the charge transport layer comprising a film forming binder, a first aromatic diamine...
4968579 Organic laminated photosensitive material of positive charging type and process for preparation thereof  
Disclosed is an organic laminated photosensitive material of the positive charging type comprising an electroconductive substrate, a charge-transporting layer formed on the substrate and a...
4959287 Xeroradiographic imaging member  
A xeroradiographic imaging member containing a substrate having an electrically conductive surface, an electroradiographic insulating layer selected from the group consisting of selenium and...
4952472 Indigoid photoconductor imaging members  
Disclosed is an improved layered photoresponsive imaging member comprised of a supporting substrate, a vacuum evaporated photogenerator layer comprised of certain fractionaklly sublimed indigoid...
4952471 Quinacridone photoconductor imaging members  
Disclosed is an improved layered photoresponsive imaging member comprised of a vacuum evaporated photogenerator layer comprised of fractionally sublimed quinacridone pigments including...
4948689 Photoconductor for electrophotography having an amino charge transport compound  
The photoconductor for electrophotography comprises a novel amino compound as a charge transporting substance. The amino compound is represented by the following general formula: ##STR1## wherein,...
4943508 Method of fabricating a layered flexible electrophotographic imaging member  
A process for fabricating an electrophotographic imaging member is disclosed which involves providing an electrically conductive layer, forming an aminosilane reaction product charge blocking layer...
4937164 Thionated perylene photoconductive imaging members for electrophotography  
A photoresponsive imaging member comprised of a thionated perylene photogeneratoring layer, and a charge transport layer.
4925759 Electrophotographic sensitive material with pyrrolopyrrole and benzidine derivatives  
An electrophotographic sensitive material is provided which has a photosensitive layer formed on an electroconductive substrate, the photosensitive layer containing a pyrrolopyrrole type compound...
4925760 Pyranthrone photoconductor imaging members  
Disclosed is an improved layered photoresponsive imaging member comprised of a supporting substrate, a vacuum evaporated photogenerator layer comprised of certain pyranthrone pigments including...
4923775 Photoreceptor overcoated with a polysiloxane  
An electrophotographic imaging member comprising a supporting substrate, at least one photoconductive layer and an overcoating layer comprising a polymerized silane, the polymerized silane...
4921769 Photoresponsive imaging members with polyurethane blocking layers  
An imaging member comprised of an optional supporting substrate; a ground plane layer; a blocking layer; an optional adhesive layer; a photogenerator layer; and a charge transport layer, wherein...
4920022 Electrophotographic photosensitive member comprising aryl amine charge transport material  
An electrophotographic photosensitive member comprises a conductive support and provided thereon a photosensitive layer, wherein said photosensitive layer contains an amine compound represented by...
4908289 Photoreceptor for electrophotography  
Novel squarylium compounds, a process for the production thereof as well as to a photoreceptor for electrophotography containing the squarylium compound are disclosed, said squarylium compounds...
4895783 Overcoated electrophotographic photoreceptor contains metal acetyl acetonate in polymer layer  
An electrophotographic imaging member comprising a supporting substrate, at least one photoconductive layer and an overcoating layer having one side contiguous with the electrophotographic imaging...
4882254 Photoconductive imaging members with mixtures of photogenerator pigment compositions  
A layered photoresponsive imaging member comprised of a supporting substrate; a photogenerator layer comprised of a mixture of first and second pigments; and an aryl amine hole transport layer,...
4882253 Organic laminated photosensitive material of positive charging type  
Disclosed is an organic laminated photosensitive material of the positive charging type comprising an electroconductive substrate, a charge-transporting layer formed on the substrate and a...
4877702 Electrophotographic sensitive material  
There is disclosed an electrophotographic sensitive layer which is provided with a single-layer type sensitive layer containing a specific perylene type compound as an electric charge generating...
4873164 Electrophotographic photoreceptor comprising a charge transport medium and a bis-azo compound containing oxygen  
An electrophotographic photoreceptor according to the present invention has a photosensitive layer comprising a bis-azo compound represented by the general formula (I): ##STR1## wherein K 1 and K...
4871634 Electrophotographic elements using hydroxy functionalized arylamine compounds  
A hydroxy arylamine compound is disclosed represented by the formula: ##STR1## wherein: m is 0 or 1, Z is selected from the group consisting of: ##STR2## n is 0 or 1, Ar is selected from the...
4855203 Imaging members with photogenerating compositions obtained by solution processes  
A layered photoresponsive imaging member comprised of a supporting substrate; an amorphous photoconductive layer and a hole transport layer dispersed in a resinous binder, which layer is formulated...
4835081 Photoresponsive imaging members with electron transport overcoatings  
Disclosed is an imaging member comprised of a photoconductive layer, and a protective electron transport polymer overcoating of the formula ##STR1## wherein A is a trivalent linkage; B is a...
4833054 Electrophotographic photoreceptor having a bisazo compound  
An electrophotographic photoreceptor comprising an electrically conductive support having provided thereon a photosensitive layer composed of a charge generating layer and a charge transport layer,...
Matches 151 - 200 out of 260 < 1 2 3 4 5 6 >