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Edward F. Grabowski, Webster US

Edward F. Grabowski, Webster, NY US

Patent application numberDescriptionPublished
20080220349Photoconductors 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
20090092911ADDITIVE CONTAINING CHARGE TRANSPORT 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 where the charge transport layer contains at least one of an ammonium salt.04-09-2009
20090092912IMIDAZOLIUM SALT CONTAINING CHARGE TRANSPORT LAYER 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 wherein the at least one charge transport layer contains at least one imidazolium salt.04-09-2009
20090092913ADDITIVE 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 where the photogenerating layer contains an ammonium salt, an imidazolium salt, or mixtures thereof.04-09-2009
20090092914PHOSPHONIUM 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
20090092915PHOSPHONIUM CONTAINING CHARGE TRANSPORT 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 at least one charge transport layer contains at least one phosphonium salt.04-09-2009
20090162637CARBON NANOTUBE FILLED POLYCARBONATE ANTI-CURL BACK COATING WITH IMPROVED ELECTRICAL AND MECHANICAL PROPERTIES - Transparent or semi-transparent, electrically conductive anti-curl back coating composite for electrophotographic imaging member comprising a carbon nanotube complex and a polycarbonate binder are described along with processes for preparing them.06-25-2009
20090162761OPTICALLY TRANSPARENT SOLVENT COATABLE CARBON NANOTUBE GROUND PLANE - In accordance with the invention, there are xerographic photoreceptors, image forming apparatus, and methods of forming an image on image. The xerographic photoreceptor can include a substrate and a conductive ground plane having an optical transparency disposed over the substrate, the conductive ground plane including a carbon nanotube layer, such that machine cycling of the xerographic photoreceptor can produce less than approximately a 10% change in the optical transparency of the conductive ground plane after about 100,000 or more machine cycles. The xerographic photoreceptor can also include a photosensitive layer disposed over the conductive ground plane, wherein the photosensitive layer can include a charge generator material and a charge transport material.06-25-2009
20090246667THIADIAZOLE CONTAINING CHARGE TRANSPORT LAYER PHOTOCONDUCTORS - A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer containing at least one charge transport component, and wherein the charge transport layer also contains a thiadiazole.10-01-2009
20090253059LOW FRICTION ELECTROSTATOGRAPHIC IMAGING MEMBER - Present embodiments pertain to an improved electrostatographic imaging member having low contact friction surfaces to ease sliding mechanical interaction and suppressing abrasion/wear failure and methods of preparing thereof. The improved imaging member has layers comprising one or two low surface energy polymeric materials that enhance the physical and mechanical functions and reduce the layers surface contact friction of the imaging member to extend service life.10-08-2009
20090274968PYRAZINE CONTAINING CHARGE TRANSPORT 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 charge transport layer contains a pyrazine.11-05-2009
20090274970CARBAZOLE CONTAINING CHARGE TRANSPORT 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 charge transport layer contains a carbazole.11-05-2009
20090325090PHENOLIC RESIN HOLE BLOCKING LAYER PHOTOCONDUCTORS - A photoconductor that includes, for example, a substrate, a first layer like a ground plane layer, an undercoat layer thereover wherein the undercoat layer contains an aminosilane and a phenolic resin, a photogenerating layer, and at least one charge transport layer.12-31-2009
20100055588CHARGE TRANSPORT LAYER HAVING HIGH MOBILITY TRANSPORT MOLECULE MIXTURE - 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 having a specific mixture of high mobility molecules in the charge transport layer which exhibits reduced propensity for crystallization while maintaining or improving electrical performance.03-04-2010
20100190099NANO DIAMOND ANTICURL BACKSIDE COATING (ACBC) PHOTOCONDUCTORS - A photoconductor that includes a first layer, a supporting substrate thereover, a photogenerating layer, and at least one charge transport layer 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 is comprised of a nano diamond component.07-29-2010
20100221649BORON CONTAINING HOLE BLOCKING LAYER PHOTOCONDUCTOR - A photoconductor that includes a supporting substrate, a ground plane layer, a hole blocking layer, a photogenerating layer, and at least one charge transport layer, and where the hole blocking layer includes a boron containing compound.09-02-2010
20100239966COATING DISPERSION FOR OPTICALLY SUITABLE AND CONDUCTIVE ANTI-CURL BACK COATING LAYER - 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 a carbon nano tube dispersion into a high molecular weight polycarbonate and an anti-static copolymer with polyester, polycarbonate, and polyethylene glycol units in a formulation for the anti-curl back coating layer which provides a conductively suitable and stable dispersion coating solution for making an optically suitable anti-curl back coating layer.09-23-2010
20100273100COATING FOR OPTICALLY SUITABLE AND CONDUCTIVE ANTI-CURL BACK COATING LAYER - 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 a thermoplastic material pre-compounded to impart conductivity to the anti-curl back coating layer and may also contain an adhesion promoter which provides a conductively and optically anti-curl back coating layer. The conductive anti-curl back coating of the present disclosure may be formulated to have a single layer, dual layers, or triple layers.10-28-2010
20100279217STRUCTURALLY SIMPLIFIED FLEXIBLE IMAGING MEMBERS - 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 the incorporation of a liquid compound having a high boiling point into the charge transport layer such that an anticurl back coating is no longer needed for reduction or elimination of photoreceptor upward curling.11-04-2010
20100279219FLEXIBLE IMAGING MEMBERS WITHOUT ANTICURL LAYER - 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 the incorporation of a liquid compound having a high boiling point into the charge transport layer such that an anticurl back coating is no longer needed for reduction or elimination of photoreceptor layer curling.11-04-2010
20100297543 INTERFACIAL LAYER AND COATING SOLUTION FOR FORMING THE SAME - The present embodiments are generally directed to an improved imaging member exhibiting various advantages over conventional imaging members. More specifically, the present embodiments are directed to an improved interfacial layer formed from an aqueous-based coating solution which exhibits improved formation and coating properties, such as increased homogeneity and adhesion, and methods for making the same. The aqueous-based coating solution is environment-friendly and avoids the need to use more expensive organic solvents which involve higher safety risks in the manufacturing process.11-25-2010
20100310977CHARGE BLOCKING LAYER AND COATING SOLUTION FOR FORMING THE SAME - The present embodiments are generally directed to an improved imaging member exhibiting various advantages over conventional imaging members. More specifically, the present embodiments are directed to an improved charge blocking layer formed from an aqueous-based coating solution which exhibits improved shelf life and coating properties, such as increased homogeneity and adhesion, and methods for making the same. The aqueous-based coating solution is environment-friendly and avoids the need to use more expensive organic solvents which involve higher safety risks in the manufacturing process.12-09-2010
20100316410PHOTORECEPTOR INTERFACIAL LAYER - The presently disclosed embodiments relate generally to layers that are useful in imaging apparatus members and components, for use in electrostatographic, including digital, apparatuses. Embodiments pertain to an improved electrostatographic imaging member comprising an interfacial layer further comprising an opaque semi-crystalline polyester resin that is also a hot-melt adhesive to prevent light transmission to the substrate and thus significantly reduce “plywood effect,” a print quality defect.12-16-2010
20100323288PHOTORECEPTOR WITH RELEASE LAYER - The disclosed embodiments are directed to an electrophotographic photoreceptor having a release layer. More particularly, the disclosure relates to an electrophotographic photoreceptor having a release layer which comprises an organosilane compound coated over the substrate surface. Other embodiments include methods for coating layer removal using a specifically configured electrophotographic photoreceptor having a release layer and methods for recovering a charge transport molecule.12-23-2010
20100330479FLUORINATED NANO DIAMOND ANTICURL BACKSIDE COATING (ACBC) PHOTOCONDUCTORS - A photoconductor that includes a first layer, a supporting substrate thereover, a photogenerating layer, and at least one charge transport layer 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 fluorinated nano diamond component.12-30-2010
20110104602GELATIN RELEASE LAYER AND METHODS FOR USING THE SAME - The disclosed embodiments are directed to a method for removing photoreceptor coatings from a rigid substrate, wherein the photoreceptor coatings disposed over a substrate of an electrophotographic photoreceptor, in order to recover it for re-use in photoreceptor manufacturing. More specifically, the invention discloses a photoreceptor substrate recovery methodology that includes the creation of an inner release layer over the substrate and followed by subjecting the rejected or used electrophotographic photoreceptor to a step of soaking in a non-toxic and environmentally-friendly stripping solution that separates the coatings from the substrate.05-05-2011
20110104603SILANE RELEASE LAYER AND METHODS FOR USING THE SAME - The disclosed embodiments are directed to processes for removing photoreceptor coatings from a substrate, wherein the photoreceptor coatings disposed over a substrate of an electrophotographic photoreceptor. More specifically, the present embodiments discloses a photoreceptor coatings removal process comprises subjecting an electrophotographic photoreceptor to a stripping solution that separates the coatings from the substrate.05-05-2011
20110136049IMAGING MEMBERS COMPRISING FLUOROKETONE - Improved electrophotographic imaging members which pertain to the incorporation of a fluoroketone into the charge transport layer to achieve a structurally simplified flexible electrophotographic imaging member that remains flat without the need for an anticurl back coating layer. The imaging member is both more slippery and has a reduced coefficient of friction, thus extending service life.06-09-2011
20110151363UNDERCOAT LAYER AND IMAGING MEMBERS COMPRISING SAME - Disclosed are undercoat layers comprising a metal oxide, a polymer, and a citrate of Formula (I):06-23-2011

Patent applications by Edward F. Grabowski, Webster, NY US