1,1' Biphenyl 4,4' Diamine (e.g., Benzidine, Etc.) Patents (Class 430/58.8)
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Patent number: 8563204Abstract: 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 hydroxygallium phthalocyanine, a hydroxyaluminum phthalocyanine, a polymeric binder, and a silanol.Type: GrantFiled: June 29, 2010Date of Patent: October 22, 2013Assignee: Xerox CorporationInventor: Jin Wu
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Patent number: 8524428Abstract: An electrophotographic photoreceptor includes: a conductive substrate; a photosensitive layer including a charge-generating layer containing a charge-generating material and a charge-transporting layer containing a charge-transporting material, the charge-transporting layer having a hole mobility of about 5.0×10?6 (cm2/V·sec) or less at an electric field of 2 V/cm; and an overcoat layer that is provided on the photosensitive layer and contains a cured material of a charge-transporting material, wherein relational expression (1) Ip(OCL)>Ip(CTL)>Ip(CGL) is satisfied wherein Ip(CGL) represents an ionization potential (eV) of the charge-generating material contained in the charge-generating layer; Ip(CTL) represents an ionization potential (eV) of the charge-transporting material contained in the charge-transporting layer; and Ip(OCL) represents an ionization potential (eV) of the charge-transporting material contained in the overcoat layer.Type: GrantFiled: September 3, 2010Date of Patent: September 3, 2013Assignee: Fuji Xerox Co., Ltd.Inventor: Hirofumi Nakamura
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Publication number: 20130209928Abstract: An electrophotographic photoreceptor, an electrophotographic photoreceptor cartridge, and an image forming apparatus, which are excellent in electrical characteristics such as a responsivity and at the same time, excellent in the crack resistance, are provided. Two kinds of charge transport substances each having a specific structure and a polyester resin having a specific structure are combined, whereby the crack resistance can be improved.Type: ApplicationFiled: February 7, 2013Publication date: August 15, 2013Applicant: Mitsubishi Chemical CorporationInventor: Mitsubishi Chemical Corporation
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Publication number: 20130209929Abstract: An electrophotographic photoreceptor, an electrophotographic photoreceptor cartridge, and an image forming apparatus, which are excellent in electrical characteristics such as a responsivity and at the same time, excellent in the crack resistance, are provided. Two kinds of charge transport substances each having a specific structure and a polycarbonate resin having a specific structure are combined, whereby the electrical characteristics such as responsivity and the crack resistance can be improved at the same time.Type: ApplicationFiled: February 7, 2013Publication date: August 15, 2013Applicant: Mitsubishi Chemical CorporationInventor: Mitsubishi Chemical Corporation
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Patent number: 8507161Abstract: A photoconductor containing an optional supporting substrate layer, a photogenerating layer, a charge transport layer, and a top overcoat layer of a phenolic compound, a phosphite compound, an optional charge transport compound, an optional melamine resin, an optional acrylated polyol, and an optional catalyst.Type: GrantFiled: July 15, 2011Date of Patent: August 13, 2013Assignee: Xerox CorporationInventors: Jin Wu, Kenny-Tuan T. Dinh, Terry L. Street, Robert W. Hedrick, Linda L. Ferrarese, Brian P. Gilmartin
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Publication number: 20130202995Abstract: The presently disclosed embodiments relate generally to a flexible imaging member having an anti-curl back coating comprising a liquid plasticizer, and the imaging member is substantially flat.Type: ApplicationFiled: February 6, 2012Publication date: August 8, 2013Applicant: XEROX CORPORATIONInventors: Robert C.U. Yu, Edward F. Grabowski
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Patent number: 8486594Abstract: An object of the invention is to provide: a p-terphenyl compound mixture useful as a charge-transporting agent which has improved solubility in organic solvents to thereby diminish a cracking phenomenon, which poses problems concerning photoreceptor characteristics, and can realize an electrophotographic photoreceptor having high sensitivity and high durability; and an electrophotographic photoreceptor employing the compound mixture. The invention relates to: a p-terphenyl compound mixture which includes two symmetric p-terphenyl compounds respectively represented by the following general formula (1) and general formula (2) and an asymmetric p-terphenyl compound represented by the following general formula (3) which has both a group of substituents of the compound represented by general formula (1) and a group of substituents of the compound represented by general formula (2); and an electrophotographic photoreceptor containing the compound mixture.Type: GrantFiled: January 24, 2007Date of Patent: July 16, 2013Assignee: Hodogaya Chemical Co., Ltd.Inventors: Shinya Nagai, Atsushi Takesue, Makoto Koike, Katsumi Abe, Takehiro Nakajima
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Patent number: 8481235Abstract: A photoconductor that includes, for example, a supporting substrate, an undercoat layer thereover that contains a metal oxide, a phenolic resin, and a pentanediol ester; a photogenerating layer; and at least one charge transport layer.Type: GrantFiled: August 26, 2010Date of Patent: July 9, 2013Assignee: Xerox CorporationInventors: Yuhua Tong, Jin Wu, Nancy L. Belknap, Helen R. Cherniack, Marc J. Livecchi
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Patent number: 8475983Abstract: The presently disclosed embodiments are directed to imaging members used in electrostatography. More particularly, the embodiments pertain to electrophotographic imaging members which have an added-on protective overcoat layer formulated to comprise of a novel A-B diblock copolymer comprising two segmental blocks of a bisphenol polycarbonate and an organic acid terminal which provides chemical vapor contaminant resistive property. The overcoat layer may further be formulated to include small quantity of charge transport compound. The present embodiments provide superior copy printout quality.Type: GrantFiled: June 30, 2010Date of Patent: July 2, 2013Assignee: Xerox CorporationInventors: Robert C. U. Yu, Yuhua Tong
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Patent number: 8470505Abstract: The presently disclosed embodiments are directed to imaging members used in electrostatography. More particularly, the embodiments pertain to electrophotographic imaging members which have imaging layer(s) formulated to comprise of a novel A-B diblock copolymer binder consisting of two segmental blocks of a bisphenol polycarbonate and a phthalic acid which provides chemical vapor contaminant resistive property. The present embodiments provide superior copy printout quality.Type: GrantFiled: June 10, 2010Date of Patent: June 25, 2013Assignee: Xerox CorporationInventors: Robert C. U. Yu, Yuhua Tong
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Patent number: 8465888Abstract: A photoconductor comprising a substrate, an undercoat layer, a photogenerating layer and a charge transport layer is described. The undercoat layer is disposed on the substrate and comprises a metal oxide, and a mixture of a phenolic resin and a cyclohexanecarboxylate.Type: GrantFiled: January 27, 2011Date of Patent: June 18, 2013Assignee: Xerox CorporationInventors: Yuhua Tong, Jin Wu, Edward F. Grabowski, Marc J. Livecchi
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Patent number: 8460844Abstract: A imaging member, such as a photoreceptor, comprising a structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may comprise at least one secondary component, such as an antioxidant.Type: GrantFiled: September 27, 2011Date of Patent: June 11, 2013Assignee: Xerox CorporationInventors: Matthew A. Heuft, Adrien P. Cote, Greg McGuire, Nan-Xing Hu, Yvan Gagnon
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Publication number: 20130101929Abstract: Provided is an electrophotographic photoreceptor including a conductive substrate and a photosensitive layer provided on the conductive substrate, wherein an uppermost surface layer thereof is constituted with a cured film of a composition that contains at least two kinds of reactive charge transporting materials selected from a first reactive charge transporting material having an —OH group as a reactive functional group and a second reactive charge transporting material having an —OCH3 group as a reactive functional group, fluororesin particles, and an alkyl fluoride group-containing copolymer having repeating units represented by the following Structural Formulae A and B, and a relative dielectric constant ?r of the uppermost surface layer satisfies the following Formula (1):Type: ApplicationFiled: April 20, 2012Publication date: April 25, 2013Applicant: FUJI XEROX CO., LTD.Inventors: Jiro KORENAGA, Keiko MATSUKI, Masahiro IWASAKI, Mitsuhide NAKAMURA
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Patent number: 8426092Abstract: A photoconductor that includes for example, a supporting substrate, an optional ground plane layer, an optional hole blocking layer, an optional adhesive layer, a photogenerating layer, and a charge transport layer, and where the charge transport layer contains a charge transport component, and a mixture of a poly(imide-carbonate) polymer and a fluorinated polymer and optionally a third polymer, like a polycarbonate.Type: GrantFiled: August 26, 2010Date of Patent: April 23, 2013Assignee: Xerox CorporationInventors: Yu Qi, Nan-Xing Hu, Jin Wu, Marc J. Livecchi, Edward C. Savage, Linda L. Ferrarese
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Patent number: 8409773Abstract: A photoconductor that includes, for example, a substrate; an undercoat layer thereover wherein the undercoat layer contains a metal oxide, and a mixture of an epoxy resin and a carboxyl resin; a photogenerating layer; and at least one charge transport layer.Type: GrantFiled: February 27, 2009Date of Patent: April 2, 2013Assignee: Xerox CorporationInventors: Jin Wu, Marc J Livecchi, Robert W Hedrick, John J. Wilbert
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Patent number: 8404413Abstract: Present embodiments are directed to the preparation of curl-free flexible imaging members used in electrostatography. More particularly, the embodiments pertain to a structurally simplified flexible electrophotographic imaging member, including the incorporation of a plasticizer or a blend of plasticizers in the imaging layer(s) to effect imaging layer(s) stress relieving outcome for curl control without the need of an anticurl back coating, and methods for making and using the imaging member.Type: GrantFiled: May 18, 2010Date of Patent: March 26, 2013Assignee: Xerox CorporationInventors: Robert C. U. Yu, Yuhua Tong
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Patent number: 8399164Abstract: A photoconductor that includes, for example, a supporting substrate, an undercoat layer thereover wherein the undercoat layer contains a metal oxide a phenolic resin and a dendritic polyester polyol; a photogenerating layer; and at least one charge transport layer.Type: GrantFiled: April 28, 2010Date of Patent: March 19, 2013Assignee: Xerox CorporationInventor: Jin Wu
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Patent number: 8380109Abstract: An image forming apparatus including at least an image bearing member having a substrate having a photosensitive layer thereon, the image bearing member to bear a latent electrostatic image on a surface thereof, a charging device to the surface of the image bearing member, an irradiation device to irradiate the surface of the image bearing member with light to form a latent electrostatic image thereon, a development device to develop the latent electrostatic with toner to obtain a developed image, a transfer device to transfer the developed image to a recording medium, and a cleaning device to clean the surface of the image bearing member, wherein the photosensitive layer includes naphthalene tetracarbonic acid diimide derivative as a charge transport material represented by the following Chemical Structure (1): In the Chemical Structure (1), Z represents a group represented by the following Chemical Formula (1): or the following Chemical Formula (2): —R9??Chemical Formula (2).Type: GrantFiled: January 9, 2009Date of Patent: February 19, 2013Assignee: Ricoh Company, Ltd.Inventors: Eiji Kurimoto, Keisuke Shimoyama, Tomoyuki Shimada, Masafumi Ohta, Yuuji Tanaka
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Patent number: 8367285Abstract: Embodiments pertain to a novel imaging member, namely, an imaging member or photoreceptor comprising an overcoat layer which comprises light-absorbing material that improves print quality. The light-absorbing material reduces the intrinsic light shock suffered by conventional overcoat layers without negatively impacting electrical properties of the overcoat layer.Type: GrantFiled: November 6, 2009Date of Patent: February 5, 2013Assignee: Xerox CorporationInventors: Cuong Vong, Yvan Gagnon, Gregory McGuire
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Patent number: 8367286Abstract: A photoconductor that includes, for example, a substrate, an undercoat layer thereover wherein the undercoat layer contains a metal oxide dispersed in a mixture of a urea formaldehyde resin and a phenolic formaldehyde resin; a photogenerating layer; and at least one charge transport layer.Type: GrantFiled: February 25, 2010Date of Patent: February 5, 2013Assignee: Xerox CorporationInventor: Jin Wu
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Publication number: 20130017479Abstract: A photoconductor containing an optional supporting substrate layer, a photogenerating layer, a charge transport layer, and a top overcoat layer of a phenolic compound, a phosphite compound, an optional charge transport compound, an optional melamine resin, an optional acrylated polyol, and an optional catalyst.Type: ApplicationFiled: July 15, 2011Publication date: January 17, 2013Applicant: XEROX CORPORATIONInventors: Jin WU, Kenny-Tuan T. DINH, Terry L. STREET, Robert W. HEDRICK, Linda L. FERRARESE, Brian P. GILMARTIN
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Patent number: 8354211Abstract: An electrophotographic photoreceptor comprising a layered-type photosensitive layer in which a charge generating layer containing a charge generating material and a charge transporting layer containing a charge transporting material are stacked, formed on a conductive supporting member made of a conductive material, wherein the electrophotographic photoreceptor has high sensitive characteristics to a semiconductor laser beam having a wavelength ranging from 380 to 500 nm; the charge transporting layer of the layered-type photosensitive layer contains as the charge transporting material, a triarylamine dimer compound represented by the general formula (1): wherein Ar1 and Ar2 may be the same or different, and represent an unsubstituted or substituted arylene group or heterocyclic derivative bivalent group, Ar3 and Ar4 may be the same or different, and represent an unsubstituted or substituted aryl group or heterocyclic group, R1 and R2 may be the same or different, and represent an alkyl group, m and n repType: GrantFiled: December 5, 2008Date of Patent: January 15, 2013Assignee: Sharp Kabushiki KaishaInventors: Akiko Kihara, Kotaro Fukushima, Takatsugu Obata, Akihiro Kondoh
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Patent number: 8329367Abstract: A photoconductor that includes a supporting substrate, an optional ground plane layer, an optional hole blocking layer, a photogenerating layer, and at least one charge transport layer, and where the charge transport layer contains a polyamideimide.Type: GrantFiled: January 28, 2010Date of Patent: December 11, 2012Assignee: Xerox CorporationInventors: Jin Wu, Yuhua Tong, Linda L Ferrarese, Edward C Savage
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Patent number: 8304152Abstract: A photoconductor that includes a supporting substrate, an optional ground plane layer, an optional hole blocking layer, an optional adhesive layer, a photogenerating layer, and at least one charge transport layer, and where the charge transport layer contains a spirodilactam based polycarbonate.Type: GrantFiled: July 29, 2010Date of Patent: November 6, 2012Assignee: Xerox CorporationInventor: Jin Wu
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Patent number: 8304151Abstract: 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 an ozone quenching compound into the charge transport layer to quench the corona effluents and protect the polycarbonate binder of the charge transport layer from being attacked by ozone species, thereby enhancing wear resistance and fatigue cracking.Type: GrantFiled: November 30, 2009Date of Patent: November 6, 2012Assignee: Xerox CorporationInventors: Robert C. U. Yu, Stephen T. Avery, Jimmy E. Kelly
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Patent number: 8278017Abstract: 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 development of a structurally simplified flexible electrophotographic imaging member without the need of an anticurl back coating layer and a post treatment process for effecting the imaging member service life extension in the field.Type: GrantFiled: June 1, 2009Date of Patent: October 2, 2012Assignee: Xerox CorporationInventors: Robert C. U. Yu, Stephen T. Avery, Michael S. Roetker
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Patent number: 8278015Abstract: The presently disclosed embodiments are directed generally to an improved electrostatographic imaging member incorporating specific anti-oxidants into the charge transport layer to achieve substantially reduced lateral charge migration. The imaging members having such an charge transport layer can include charge transport molecules such as N,N,N,?N?-tetra(4-methylphenyl)-(1,1?-biphenyl)-4,4?-diamine without increased sensitivity to corona-induced lateral charge migration.Type: GrantFiled: April 15, 2009Date of Patent: October 2, 2012Assignee: Xerox CorporationInventors: Gregory McGuire, Jennifer Coggan
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Patent number: 8273512Abstract: 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.Type: GrantFiled: June 16, 2009Date of Patent: September 25, 2012Assignee: Xerox CorporationInventors: Yuhua Tong, Edward F. Grabowski, Jin Wu
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Publication number: 20120237862Abstract: Embodiments provide novel imaging members used in electrostatography. More particularly, there is provided flexible electrophotographic imaging members which exhibit an extended functional life. These imaging members include an improved protective overcoat layer comprising: (1) a polymer blend of a low surface energy copolymer and a chemically resistive copolymer, (2) a chemically resistive copolymer and a slip agent, and (3) a chemically resistive copolymer and the dispersion of a low surface energy Polyhedral Oligomeric Silsesquioxane (POSS) nanoparticles to effect surface contact friction reduction for enhancing wear resistance and for suppressing copy printout defect caused by chemical attack.Type: ApplicationFiled: March 18, 2011Publication date: September 20, 2012Applicant: XEROX CORPORATIONInventor: Robert C. U. Yu
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Patent number: 8257890Abstract: 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 crosslinked mixture of a glycoluril resin and a self crosslinking acrylic resin.Type: GrantFiled: August 31, 2009Date of Patent: September 4, 2012Assignee: Xerox CorporationInventor: Jin Wu
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Publication number: 20120219893Abstract: Embodiments provide novel imaging members used in electrostatography. More particularly, there is provided flexible electrophotographic imaging members which have improved imaging layer(s) formulated to comprise of a plasticizer in a material matrix of a solid solution comprising a charge transporting compound and a film forming polymer binder which is a novel A-B diblock copolymer or a binary polymer blend of a novel A-B diblock copolymer and a bisphenol polycarbonate. The flexible imaging members thus prepared have improved photoelectrical cyclic function stability, chemical resistive property, and are curl-free, and thus eliminate the need for an additional anticurl back coating layer.Type: ApplicationFiled: February 24, 2011Publication date: August 30, 2012Applicant: XEROX CORPORATIONInventors: Robert C.U. Yu, Stephen T. Avery, Jimmy E. Kelly
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Publication number: 20120208116Abstract: A photoconductor containing an optional supporting substrate layer, a photogenerating layer, a bis(enylaryl)arylamine containing charge transport layer, and a top overcoat layer, which includes charge transport compounds and melamine resins.Type: ApplicationFiled: February 14, 2011Publication date: August 16, 2012Applicant: XEROX CORPORATIONInventor: Jin WU
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Patent number: 8241825Abstract: Embodiments pertain to a flexible imaging member used in electrostatography and processes for making and using the imaging member. More particularly, the embodiments pertain to a structurally simplified flexible electrophotographic imaging member that has reasonable flatness and exhibits good performance without the need of an anticurl back coating layer.Type: GrantFiled: August 31, 2009Date of Patent: August 14, 2012Assignee: Xerox CorporationInventors: Robert C. U. Yu, Yuhua Tong, Stephen T. Avery, Michael S. Roetker, Jimmy E. Kelly
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Publication number: 20120196217Abstract: A photoconductor containing an optional supporting substrate layer, a photogenerating layer, a polyalkylene glycol benzoate containing charge transport layer, and a top overcoat layer in contact with and contiguous to the charge transport layer, and which overcoat layer includes charge transport compounds and melamine resins.Type: ApplicationFiled: January 28, 2011Publication date: August 2, 2012Applicant: XEROX CORPORATIONInventor: Jin WU
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Publication number: 20120196216Abstract: A photoconductor comprising a substrate, an undercoat layer, a photogenerating layer and a charge transport layer is described. The undercoat layer is disposed on the substrate and comprises a metal oxide, and a mixture of a phenolic resin and a cyclohexanecarboxylate.Type: ApplicationFiled: January 27, 2011Publication date: August 2, 2012Applicant: XEROX CORPORATIONInventors: Yuhua Tong, Jin Wu, Edward F. Grabowski, Marc J. Livecchi
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Patent number: 8227154Abstract: A photoconductor that includes, for example, a substrate, an optional ground plane layer, an undercoat layer thereover wherein the undercoat layer contains an aminosilane and a melamine polymer, a photogenerating layer, and at least one charge transport layer.Type: GrantFiled: July 29, 2009Date of Patent: July 24, 2012Assignee: Xerox CorporationInventors: Jin Wu, Sherri A Toates, J. Robinson Cowdery-Corvan, Mark Muscato, Richard A Williams, Marc J Livecchi, Linda L Ferrarese
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Patent number: 8227155Abstract: A photoconductor that includes, for example, a substrate, an optional ground plane layer, an undercoat layer thereover, wherein the undercoat layer contains an aminosilane and an epoxysilane, a photogenerating layer, and at least one charge transport layer.Type: GrantFiled: July 29, 2009Date of Patent: July 24, 2012Assignee: Xerox CorporationInventors: Jin Wu, Sherri A Toates, J. Robinson Cowdery-Corvan, Mark Muscato, Richard A Williams, Marc J Livecchi, Linda L Ferrarese
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Patent number: 8221946Abstract: A photoconductor that includes, for example, a substrate, an optional ground plane layer, an undercoat layer thereover wherein the undercoat layer contains an aminosilane and a urea resin mixture; a photogenerating layer; and at least one charge transport layer.Type: GrantFiled: July 29, 2009Date of Patent: July 17, 2012Assignee: Xerox CorporationInventor: Jin Wu
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Publication number: 20120155920Abstract: 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 specific photoreceptor material package comprising an undercoat layer, a charge generation layer, a charge transport layer comprising Tm-TBD/tris(butadienylaryl)amine, and an overcoat layer. The charge transport layer molecule provides substantially reduced C zone residual potential and therefore alleviates the problems of low optical density and ghosting.Type: ApplicationFiled: December 16, 2010Publication date: June 21, 2012Applicant: XEROX CORPORATIONInventor: JIN WU
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Publication number: 20120134713Abstract: An aspect of the present invention provides a method of manufacturing an electrophotographic photoreceptor. The method includes forming at least one layer selected from the group consisting of an undercoat layer, a photosensitive layer, and a protective layer, by jetting by an inkjet method a first coating liquid and a second coating liquid from liquid drop discharging heads which are different from each other, and mixing the first coating liquid and the second coating liquid on a conductive substrate. The first coating liquid and the second coating liquid react with each other when they are mixed.Type: ApplicationFiled: February 7, 2012Publication date: May 31, 2012Applicant: FUJI XEROX CO., LTD.Inventors: Tomotake INAGAKI, Kazuyuki TADA, Tomomasa SATO, Masaru AGATSUMA
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Patent number: 8178266Abstract: An electrophotographic photoreceptor is provided that contains a conductive substrate, an undercoat layer, a charge generation layer, and a charge transport layer, wherein the under coat layer contains a binder resin and multiple inorganic pigments each having different average primary particle diameters in a total amount of from 75 to 86% by weight, the charge generation layer contains a binder resin and a titanyl phthalocyanine pigment having a specific X-ray diffraction spectrum in an amount of from 70 to 85% by weight, the charge transport layer comprises a specific distyryl compound, and the following formulae (2-1) to (2-3) are satisfied: 0.2?(D(F2)/D(G))?0.5??(2-1) 0.2?D(F1)??(2-2) D(F2)?D(F1)??(2-3) wherein D(F1) (?m) and D(F2) (?m) represent average primary particle diameters of the largest and smallest inorganic pigments, respectively, and D(G) (?m) represents an average primary particle diameter of the titanyl phthalocyanine pigment.Type: GrantFiled: June 23, 2009Date of Patent: May 15, 2012Assignee: Ricoh Company, Ltd.Inventors: Hiromi Tada, Nozomu Tamoto, Tomoyuki Shimada, Takafumi Iwamoto
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Patent number: 8173342Abstract: A photoconductor that includes a photogenerating layer, and a charge transport layer containing a charge transport component, and a core shell component, and wherein the core is comprised of a metal oxide and the shell is comprised of silica.Type: GrantFiled: June 29, 2009Date of Patent: May 8, 2012Assignee: Xerox CorporationInventors: Jin Wu, Kenny-Tuan T Dinh, Linda L Ferrarese, Marc J Livecchi, Edward C Savage, Michael E Zak
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Patent number: 8168358Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and a charge transport layer, and wherein the charge transport layer contains a polysulfone.Type: GrantFiled: June 29, 2009Date of Patent: May 1, 2012Assignee: Xerox CorporationInventor: Jin Wu
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Patent number: 8168357Abstract: A photoconductor that includes a photogenerating layer and a charge transport layer containing a charge transport component, a fluorinated polymer, and a core shell component, and wherein the core is comprised of a metal oxide and the shell is comprised of silica.Type: GrantFiled: June 29, 2009Date of Patent: May 1, 2012Assignee: Xerox CorporationInventors: Jin Wu, Kenny-Tuan T Dinh, Linda L Ferrarese, Marc J Livecchi, Edward C Savage, Michael E Zak
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Patent number: 8158315Abstract: A photoconductor that includes a supporting substrate, a hole blocking layer, a ground plane layer, a photogenerating layer, and at least one charge transport layer, and where the hole blocking layer includes a SN containing compound and an aminosilane.Type: GrantFiled: July 29, 2009Date of Patent: April 17, 2012Assignee: Xerox CorporationInventor: Jin Wu
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Publication number: 20120052428Abstract: A photoconductor that includes, for example, a supporting substrate, an undercoat layer thereover that contains a metal oxide, a phenolic resin, and a pentanediol ester; a photogenerating layer; and at least one charge transport layer.Type: ApplicationFiled: August 26, 2010Publication date: March 1, 2012Applicant: XEROX CORPORATIONInventors: Yuhua Tong, Jin Wu, Nancy L. Belknap, Helen R. Cherniack, Marc J. Livecchi
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Patent number: 8124305Abstract: 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.Type: GrantFiled: May 1, 2009Date of Patent: February 28, 2012Assignee: Xerox CorporationInventors: Robert C. U. Yu, Stephen T. Avery, Edward F. Grabowski, Terry L. Street, Jimmy E. Kelly, Joellen Simone
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Patent number: 8119316Abstract: 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.Type: GrantFiled: March 31, 2008Date of Patent: February 21, 2012Assignee: Xerox CorporationInventors: Liang-Bih Lin, Daniel V Levy, Jin Wu, Markus R Silvestri
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Patent number: 8110327Abstract: 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.Type: GrantFiled: June 29, 2009Date of Patent: February 7, 2012Assignee: Xerox CorporationInventors: Jin Wu, Edward F. Grabowski, Lanhui Zhang, Lin Ma
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Publication number: 20120028180Abstract: A photoconductor that includes a supporting substrate, an optional ground plane layer, an optional hole blocking layer, an optional adhesive layer, a photogenerating layer, and at least one charge transport layer, and where the charge transport layer contains a spirodilactam based polycarbonate.Type: ApplicationFiled: July 29, 2010Publication date: February 2, 2012Applicant: XEROX CORPORATIONInventor: Jin Wu