Patent application number | Description | Published |
20080220349 | Photoconductors containing halogenated binders and aminosilanes - A photoconductor containing a supporting substrate; an undercoat layer comprised of a mixture of an aminosilane and a halogenated polymer; a photogenerating layer; and at least one charge transport layer. | 09-11-2008 |
20080220350 | Hole blocking layer containing photoconductors - A photoconductor containing a substrate; an undercoat layer thereover wherein the undercoat layer includes an electroconducting component dispersed in a rapid curing polymer matrix; a photogenerating layer, and at least one charge transport layer. | 09-11-2008 |
20080220351 | Photoconductors containing photogenerating chelating components - A photoconductor containing a supporting substrate, a photogenerating layer; and at least one charge transport layer where the photogenerating layer contains a photogenerating pigment and a chelating additive or agent of, for example, a β-diketone, a ketoester, a hydroxyl carboxylic acid, a hydroxyl carboxylic acid ester, a keto alcohol, or an amino alcohol. | 09-11-2008 |
20080233501 | Photoconductors containing fluorinated components - A photoconductor containing a fluoroalkyl ester layer, a supporting substrate, a photogenerating layer, and at least one charge transport layer. | 09-25-2008 |
20080233503 | Photoconductor fluorinated charge transport layers - A photoconductor containing a supporting substrate, a photogenerating layer, and at least one charge transport layer which contains a fluoroalkyl ester. | 09-25-2008 |
20080241720 | Anticurl backside coating (ACBC) photoconductors - A photoconductor that contains a first layer, a supporting substrate thereover, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the first layer is in contact with the supporting substrate on the reverse side thereof, and which first layer includes a polymer and needle shaped particles with an aspect ratio of from 2 to about 200. | 10-02-2008 |
20080268356 | Silanol containing photoconductors - A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the photogenerating layer contains a Type V hydroxygallium phthalocyanine having incorporated therein a silanol. | 10-30-2008 |
20080268358 | Single layered photoconductors - A photoconductor that includes a supporting substrate, and an active layer in contact with the substrate, and which active layer contains a photogenerating pigment of a titanyl phthalocyanine, at least one charge transport component, and a mixture of a metal oxide and a chelating agent, where the titanyl phthalocyanine is prepared by dissolving a Type I titanyl phthalocyanine in a solution comprising a trihaloacetic acid and an alkylene halide; adding the resulting mixture of the dissolved Type I titanyl phthalocyanine to a solution comprising an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine; and treating the Type Y titanyl phthalocyanine with a monohalobenzene to form Type V titanyl phthalocyanine. | 10-30-2008 |
20080268359 | Single layered photoconductors - A photoconductor that includes a supporting substrate, and an active layer in contact with the substrate, and which layer contains at least one photogenerating pigment, at least one charge transport component, and a mixture of a metal oxide and a chelating agent of a tetrafluorodihydroxyanthraquinone. | 10-30-2008 |
20080268360 | Single layered photoconductors - A photoconductor that includes a supporting substrate, and an active layer in contact with the substrate, and which active layer contains a photogenerating pigment of a hydroxygallium phthalocyanine, at least one charge transport component, and a mixture of a metal oxide and a chelating agent, where the phthalocyanine is, for example, prepared by hydrolyzing a gallium halide phthalocyanine. | 10-30-2008 |
20080274418 | Photoconductors - A photoconductor containing a supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, and wherein the charge transport layer contains a charge blocking agent, such as a benzoimidazole. | 11-06-2008 |
20080274419 | Photoconductors - A photoconductor containing a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the photogenerating layer contains a photogenerating pigment or pigments, and a bis(pyridyl)alkylene. | 11-06-2008 |
20080280223 | Process for preparing organic photosensitive pigment - Processes for making photosensitive organic pigments for use in imaging members, specifically processes for making photosensitive phthalocyanine pigments having a specific nanocrystal form. Embodiments include a copper phthalocyanine nanocrystal with good charge generation for use in the formulation of a charge generating layer and narrow particle size distribution. | 11-13-2008 |
20080286669 | Photoconductors - A photoconductor that includes a supporting substrate, a first photogenerating layer, a second photogenerating layer and at least one charge transport layer. The first photogenerating layer contains, for example, a phthalocyanine pigment, and the second photogenerating layer contains a different phthalocyanine pigment than the first photogenerating layer phthalocyanine. | 11-20-2008 |
20080292982 | Photoconductors containing fluorogallium phthalocyanines - A photoconductor comprising an optional supporting substrate, a fluorogallium phthalocyanine containing photogenerating layer, and at least one charge transport layer. | 11-27-2008 |
20080305414 | Single layered photoconductors containing needle shaped particles - A photoconductor that, for example, includes a supporting substrate, and a single layer thereover comprised of at least one photogenerating pigment, at least one charge transport component, needle shaped particles with, for example, an aspect ratio of from 2 to about 200, and an optional electron transport compound. | 12-11-2008 |
20080305415 | Photoconductors containing fillers - A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, at least one charge transport layer comprised of at least one charge transport component, and an overcoating layer in contact with and contiguous to the top charge transport layer, and which overcoating is comprised of a polymer, an optional overcoating charge transport component, and needle shaped particles with an aspect ratio of from 2 to about 200. | 12-11-2008 |
20080305416 | Photoconductors containing fillers in the charge transport - A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, at least one charge transport layer comprised of at least one charge transport component and needle shaped particles with an aspect ratio of, for example, from 2 to about 200. | 12-11-2008 |
20080306202 | INTERMEDIATE TRANSFER MEMBERS COMPRISED OF HYDROPHOBIC CARBON NANOTUBES - Exemplary embodiments provide intermediate transfer members that can be used in electrostatographic devices and methods for using them in forming an image. The disclosed intermediate transfer members can include a plurality of nanotubes with high electrical conductivity, high thermal conductivity, and/or low humidity sensitivity. The hydrophobicity of the nanotubes can be controlled by covalently grafting hydrophobic components onto one or more nanotubes; surface treating one or more nanotubes; and encapsulating one or more nanotubes with hydrophobic components. In an exemplary embodiment, the nanotubes can be dispersed in polymer matrices and/or formed on the surface of polymer matrices of the intermediate transfer members. The intermediate transfer members can take various forms of belts, sheets, webs, films, rolls, tubes or any shape that can provide a smooth surface and rotatable function. | 12-11-2008 |
20080311498 | PHOTORECEPTOR LAYER HAVING RHODAMINE ADDITIVE - The presently disclosed embodiments relate in general to electrophotographic imaging members, such as layered photoreceptor structures, and processes for making and using the same. More particularly, the embodiments pertain to a photoreceptor that incorporates a rhodamine compound that improves image quality. | 12-18-2008 |
20090052942 | Imaging member - The presently disclosed embodiments are directed to charge transport layers useful in electrostatography. More particularly, the embodiments pertain to an improved electrostatographic imaging member having a charge transport layer that is partially crosslinked, wherein the crosslinking is achieved by incorporating a small amount of compatible thermalsetting resins into the layer. Incorporation of these resins have been shown to increase charge transport life. | 02-26-2009 |
20090053635 | Imaging member - The presently disclosed embodiments are directed to charge transport layers useful in electrostatography. More particularly, the embodiments pertain to an improved electrostatographic imaging member having a charge transport layer that is dual-dopant, wherein operating life improvement is achieved by incorporating a small amount of compatible thermalsetting resin and polyhedral oligomeric silsesquioxane into the layer. Incorporation of these resins have been shown to increase charge transport life. | 02-26-2009 |
20090053636 | Imaging member - The presently disclosed embodiments are directed to charge transport layers useful in electrostatography. More particularly, the embodiments pertain to an improved electrostatographic imaging member having a charge transport layer that is partially crosslinked, wherein the crosslinking is achieved by incorporating a small amount of compatible thermalsetting resins into the layer. Incorporation of these resins, using a fast curing system, have been shown to increase charge transport life while providing improved manufacture of a photoreceptor in which curing is faster and possible at a lower temperature. | 02-26-2009 |
20090053637 | Imaging member - The presently disclosed embodiments are directed to charge transport layers useful in electrostatography. More particularly, the embodiments pertain to an improved electrostatographic imaging member having a charge transport layer that is partially crosslinked, wherein the crosslinking is achieved by incorporating a small amount of compatible thermalsetting resins into the layer. Incorporation of these resins have been shown to increase charge transport life. | 02-26-2009 |
20090061337 | PHOTOCONDUCTORS - A photoconductor comprising a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and where the photogenerating layer contains a triazine. | 03-05-2009 |
20090061340 | HYDROXY BENZOPHENONE CONTAINING PHOTOCONDUCTORS - A photoconductor containing a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the photogenerating layer contains a photogenerating pigment or pigments, and a hydroxyalkoxy benzophenone. | 03-05-2009 |
20090075190 | Imaging member having a dual charge generation layer - The presently disclosed embodiments are directed to charge transport layers useful in electrostatography. More particularly, the embodiments pertain to an improved imaging member having a dual charge generation layer comprising a top layer and a bottom layer, wherein the bottom layer comprises a blend of phthalocyanine pigments having different sensitivities and morphologies. | 03-19-2009 |
20090092914 | PHOSPHONIUM CONTAINING PHOTOGENERATING LAYER PHOTOCONDUCTORS - A photoconductor that includes, for example, a supporting substrate, a phosphonium salt containing photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component. | 04-09-2009 |
20090123185 | IMAGING DEVICE COMPONENTS COMPRISED OF HYDROPHOBIC CARBON NANOTUBES - An electrophotographic imaging device includes a charging device, a cleaning device, and a fuser member that each include hydrophobic carbon nanotubes. The use of hydrophobic carbon nanotubes can increases the charging device's, the cleaning device's, and the fuser member's durability, conductivity, and contaminants deposition. | 05-14-2009 |
20090162094 | Thick Electrophotographic Imaging Member Undercoat Layers - Binders containing metal oxide nanoparticles and a co-resin of acrylic polyol resin and blocked polyisocyanate resin, and electrophotographic imaging member undercoat layer containing the binders. | 06-25-2009 |
20090214978 | PHOTORECEPTOR MEMBER - An electrophotographic photoreceptor and method for forming a photoreceptor is disclosed which is provided with an anticorrosion layer on the interface between the supporting substrate surface and the undercoat layer. The photoreceptor has a high mechanical strength and minimizes defects in print for longer periods of time. | 08-27-2009 |
20090246658 | THIURAM TETRASULFIDE CONTAINING PHOTOGENERATING LAYER - A photoconductor comprising a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the photogenerating layer contains a thiuram sulfide additive. | 10-01-2009 |
20090246659 | BENZOTHIAZOLE CONTAINING PHOTOGENERATING LAYER - A photoconductor that includes a supporting substrate, a photogenerating layer, and at least one charge transport layer that contains at least one charge transport component, and where the photogenerating layer contains a benzothiazolesulfenimide additive. | 10-01-2009 |
20090246661 | UREA RESIN CONTAINING PHOTOGENERATING LAYER PHOTOCONDUCTORS - A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the photogenerating layer contains a urea resin. | 10-01-2009 |
20090281291 | IMAGING MEMBERS - Methods for preparing phthalocyanine pigments having a high surface area are provided. | 11-12-2009 |
20100040829 | PROTECTIVE COATINGS FOR SOLID INKJET APPLICATIONS - This disclosure provides an aperture plate coated with a composition comprising a fluorinated compound and an organic compound selected from the group consisting of a urea, an isocyanate and a melamine. This disclosure also provides a process of applying a coating composition to an aperture plate, comprising adding a fluorinated compound, an organic compound selected from the group consisting of a urea, an isocyanate and a melamine, and an optional catalyst together in a solvent to form a coating composition, applying the coating composition to a base film, and curing the base film. This disclosure also describes replacing the aperture plate with polyimide film, where the polyimide film is coated with the above-described coating composition before a laser cutting process. | 02-18-2010 |
20100068639 | PHOTOCONDUCTIVE IMAGING MEMBERS - Exemplary embodiments provide charge generating layers and electrographic imaging members containing the charge generating layers. In various embodiments, an imaging member can be a multilayered photoconductive imaging member with a charge generating layer including, for example, a photogenerating pigment, such as a metal phthalocyanine; a dopant material, such as a multiple halide compound dopant and/or an ether dopant; and a binder or polymer. The imaging members can exhibit high photosensitivity, low residual potential (V | 03-18-2010 |
20100149262 | PROTECTIVE COATINGS FOR SOLID INKJET APPLICATIONS - An aperture plate coated with a composition including a first monomer, a second monomer, a fluorinated compound, such as fluorosilane, fluoroalkyl amide, fluorinated ether and the like, and a photoinitiator, where the first and second monomer are different. A process of coating an aperture plate includes applying the compositions to a base film, such as a polyimide film, and curing the compositions on the base film. | 06-17-2010 |
20100230661 | CHARGE GENERATION LAYER DOPED WITH DIHALOGEN ETHER - The presently disclosed embodiments relate generally to layers that are useful in imaging apparatus members and components, for use in electrostatographic, including digital, apparatuses. More particularly, the embodiments pertain to an improved electrostatographic imaging member incorporating dihalogen ether into the charge generating layer which results in increased photosensitivity of the photogenerating pigment. | 09-16-2010 |
20100239967 | OVERCOAT LAYER COMPRISING METAL OXIDES - The presently disclosed embodiments are directed generally to an improved electrostatographic imaging member in which the overcoat layer is inorganic and based on the incorporation of metal oxides, such as aluminum oxide, in specific amounts. The imaging members having such an overcoat layer exhibit improved wear resistance and life extension without any adverse impacts on performance. | 09-23-2010 |
20110020636 | CROSS-LINKED PROTECTIVE OUTER COATING - The presently disclosed embodiments are directed generally to a composition that forms a cross-linked protective outer coating or layer able to withstand high temperatures and which maintains integrity in such conditions. The protective coating may be used in imaging apparatus members and components, for use in electrostatographic, including digital, apparatuses. Particular embodiments pertain to a fuser component having an outer coating comprised of a cross-linking composition that improves resistance to thermal degradation and extends the service life of the fuser component. | 01-27-2011 |
20110021714 | NOVEL CROSS-LINKING COMPOUND - The presently disclosed embodiments are directed generally to a composition that forms a cross-linked protective outer coating or layer able to withstand high temperatures and which maintains integrity in such conditions. The protective coating may be used in imaging apparatus members and components, for use in electrostatographic, including digital, apparatuses. Particular embodiments pertain to a fuser component having an outer coating comprised of a cross-linking composition that improves resistance to thermal degradation and extends the service life of the fuser component. | 01-27-2011 |
20110045305 | TREATMENT OF CARBON BLACK WITH A FLUOROSILANE - Provided are coating composites for imaging members, imaging members, and apparatuses for forming an image. In accordance with various embodiments, there is a coating composite for imaging components. The coating composite can include a film forming resin and a plurality of surface treated carbon black particles substantially uniformly dispersed in the film forming resin, wherein each of the plurality of surface treated carbon black particles includes one or more fluorosilanes bonded to a surface of the carbon black particle. | 02-24-2011 |
20110052252 | BIAS CHARGING OVERCOAT - There is described a bias charging member that includes a conductive core and an outer surface layer on the conductive core. The outer surface layer includes a resin of aminoplast and one of polyol or nylon, a conductive additive and p-toluene sulfonic acid. There is also described a method of refurbishing bias charging members. | 03-03-2011 |
20110076604 | POLYESTER-BASED PHOTORECEPTOR OVERCOAT LAYER - The presently disclosed embodiments are directed generally to an improved electrostatographic imaging member in which the overcoat layer comprises cross-linkable polyester resins. The overcoat layer not only provides wear resistance, but it also provides higher charge transport efficiency and therefore better photoelectrical properties. In addition, the polyesters can cross-link with a variety of resins and thus provide good adhesion as well. | 03-31-2011 |
20110123219 | BIAS CHARGING OVERCOAT - Provide herein is a description of a bias charging member that includes a conductive core, and an outer surface layer disposed on the conductive core. The outer surface layer includes carbon black and acrylonitrile-butadiene-styrene. | 05-26-2011 |
20110123220 | BIAS CHARGING OVERCOAT - Provide herein is a bias charging member that includes a conductive core, and an outer surface layer disposed on the conductive core. The outer surface layer includes carbon black and polycarbonate. | 05-26-2011 |
20110139577 | SURFACE ROUGHNESS FOR IMPROVED VACUUM PRESSURE FOR EFFICIENT MEDIA HOLD-DOWN PERFORMANCE - Provided are vacuum transport systems, methods of making them and methods of transporting one or more objects. In accordance with various embodiments, there is a vacuum transport system including a vacuum plenum and one or more transport members configured to rotate around the vacuum plenum and wherein at least one of the one or more transport members can include a substrate, the substrate including a plurality of holes extending from a first side proximate to the vacuum plenum to a second side proximate to an object, wherein a surface of the second side comprises a textured surface having an average roughness Ra of about 2 μm to about 100 μm. | 06-16-2011 |
20110139584 | VACUUM TRANSPORT BELTS - Provided are media vacuum transport systems including media vacuum transport members, methods of making media vacuum transport members, and method of transporting media. In accordance with various embodiments, there is a media vacuum transport system including a vacuum plenum one or more transport members configured to rotate around the vacuum plenum and wherein at least one of the one or more transport members can include a substrate, the substrate comprising a plurality of holes extending from a first side proximate to the vacuum plenum to a second side opposite the first side, and a top coat layer disposed over the substrate, wherein the top coat layer can include a plurality of particles dispersed in a polymer blend to provide an average surface roughness Ra of about 2 μm to about 100 μm. | 06-16-2011 |
20110139586 | VACUUM TRANSPORT BELTS - Provided are media vacuum transport systems including media vacuum transport members, methods of making media vacuum transport members, and method of transporting media. In accordance with various embodiments, there is a media vacuum transport system including a vacuum plenum one or more transport members configured to rotate around the vacuum plenum and wherein at least one of the one or more transport members can include a substrate, the substrate comprising a plurality of holes extending from a first side proximate to the vacuum plenum to a second side proximate to the media, and a top coat layer disposed over the substrate, wherein the top coat layer can include a plurality of particles dispersed in a resin to provide an average surface roughness Ra of about 2 μm to about 100 μm. | 06-16-2011 |
20110183241 | PROTECTIVE PHOTORECEPTOR OUTER LAYER - Embodiments pertain to a novel imaging member, namely, an imaging member or photoreceptor comprising a protective outer layer which comprises light-absorbing composition that substantially prevents any light absorption by the overcoat layer. The composition comprises a low strength thermal plastic resin and a high optical density yellow dye. Thus, the light-blocking protective layer reduces the intrinsic light shock suffered by conventional overcoat layers without negatively impacting electrical properties of the overcoat layer and while improving print quality. | 07-28-2011 |
20110200361 | BIAS CHARGE ROLLER COMPRISING OVERCOAT LAYER - Disclosed are bias charge rollers having an overcoat layer. The overcoat layer comprises a phenolic resin and a conductive agent. The resulting bias charge rollers have reduced streaking and increased service lifetimes. | 08-18-2011 |
20110200362 | BIAS CHARGE ROLLER COMPRISING OVERCOAT LAYER - Disclosed are bias charge rollers having an overcoat layer. The overcoat layer comprises an acrylonitrile-butadiene-styrene (ABS) terpolymer and metal oxide particles optionally doped with a doping agent. The resulting bias charge rollers have reduced streaking and increased service lifetimes. | 08-18-2011 |
20110201485 | BIAS CHARGE ROLLER COMPRISING OVERCOAT LAYER - Disclosed are overcoat layers comprising an acrylic resin crosslinked with a glycoluril resin. The overcoat layers are useful in bias charge rollers because they reduce streaking and increase service lifetime. | 08-18-2011 |
20120010337 | Method For Treating A Carbon Allotrope - A method for treating a carbon allotrope including providing a carbon allotrope selected from the group consisting of carbon black, amorphous carbon, glassy carbon, graphite, graphene, fullerenes, or a mixture thereof; surface treating the carbon allotrope by coupling the carbon allotrope with a polyhedral oligomeric silsesquioxane. Also described is a surface treated carbon allotrope having a polyhedral oligomeric silsesquioxane coupled to the surface of the carbon allotrope. Also described is a coating composite for imaging components including a film forming resin; and a plurality of polyhedral oligomeric silsesquioxane surface treated carbon allotrope particles substantially uniformly dispersed in the film forming resin, and imaging components including the coating composite. | 01-12-2012 |
20140376964 | IMAGING DEVICE COMPONENTS COMPRISED OF HYDROPHOBIC CARBON NANOTUBES - An electrophotographic imaging device includes a charging device, a cleaning device, and a fuser member that each include hydrophobic carbon nanotubes. The use of hydrophobic carbon nanotubes can increases the charging device's, the cleaning device's, and the fuser member's durability, conductivity, and contaminants deposition. | 12-25-2014 |