1,1' Biphenyl 4,4' Diamine (e.g., Benzidine, Etc.) Patents (Class 430/58.8)
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Patent number: 8105740Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and a charge transport layer, and wherein the photogenerating layer contains a vulcanized fatty ester.Type: GrantFiled: April 29, 2009Date of Patent: January 31, 2012Assignee: Xerox CorporationInventor: Jin Wu
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Patent number: 8088542Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, a charge transport layer, and an overcoat layer that contains a titanocene.Type: GrantFiled: March 31, 2008Date of Patent: January 3, 2012Assignee: Xerox CorporationInventors: Jin Wu, John F. Yanus, Kenny-Tuan Dinh, Kent J Evans, Min-Hong Fu, Susan M. Vandusen
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Patent number: 8088540Abstract: An object of the invention is to provide a photoreceptor for electrophotography which has a low residual potential in an initial stage, is inhibited from increasing in residual potential, is prevented from decreasing in charge potential, undergoes little fatigue deterioration even upon repeated use, and is less apt to pose a problem concerning toxicity or environmental pollution. The invention relates to a photoreceptor for electrophotography which has a photosensitive layer containing an aromatic hydroxycarboxylic acid metal complex represented by the following general formula (1): and one or more charge-transporting agents each having an arylaminophenyl group in the molecule.Type: GrantFiled: January 18, 2007Date of Patent: January 3, 2012Assignee: Hodogaya Chemical Co., Ltd.Inventors: Katsumi Abe, Makoto Koike, Atsushi Takesue
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Publication number: 20110318680Abstract: 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: ApplicationFiled: June 29, 2010Publication date: December 29, 2011Applicant: XEROX CORPORATIONInventor: Jin Wu
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Publication number: 20110318679Abstract: A photoconductor that includes a backing 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 backing layer is in contact with the supporting substrate on the reverse side thereof, and the outermost layer of the backing layer is comprised of a polyurethane comprised of a dendritic polyester polyol and a polyisocyanate.Type: ApplicationFiled: June 25, 2010Publication date: December 29, 2011Applicant: XEROX CORPORATIONInventor: Jin Wu
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Publication number: 20110305981Abstract: 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: ApplicationFiled: June 10, 2010Publication date: December 15, 2011Inventors: Robert C. U. Yu, Yuhua Tong
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Patent number: 8067139Abstract: A photoconductor that includes, for example, a backing layer, a supporting substrate, a photogenerating layer, and a charge transport layer, and where the outermost layer of the backing layer is comprised of a mixture of a glycoluril resin and a polyol resin.Type: GrantFiled: March 30, 2009Date of Patent: November 29, 2011Assignee: Xerox CorporationInventor: Jin Wu
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Patent number: 8068776Abstract: An intermediate transfer member that is fully coated with a self crosslinked acrylic resin.Type: GrantFiled: August 28, 2008Date of Patent: November 29, 2011Assignee: Xerox CorporationInventors: Jin Wu, Jonathan H Herko, Scott J Griffin, Michael S Roetker, Dennis J Prosser
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Patent number: 8067137Abstract: 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 a polysiloxane/polyetherimide polymer.Type: GrantFiled: June 30, 2008Date of Patent: November 29, 2011Assignee: Xerox CorporationInventor: Jin Wu
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Publication number: 20110287352Abstract: 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: ApplicationFiled: May 18, 2010Publication date: November 24, 2011Applicant: XEROX CORPORATIONInventors: Robert C. U. Yu, Yuhua Tong
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Patent number: 8062816Abstract: 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 phosphonate; a photogenerating layer; and at least one charge transport layer.Type: GrantFiled: May 30, 2008Date of Patent: November 22, 2011Assignee: Xerox CorporationInventor: Jin Wu
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Patent number: 8062817Abstract: A photoconductor that includes, for example, a backing layer, a supporting substrate, a photogenerating layer, and a charge transport layer, and where the outermost layer of the backing layer is comprised of a mixture of a glycoluril resin and a polyacetal resin.Type: GrantFiled: March 30, 2009Date of Patent: November 22, 2011Assignee: Xerox CorporationInventor: Jin Wu
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Patent number: 8062815Abstract: 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.Type: GrantFiled: October 9, 2007Date of Patent: November 22, 2011Assignee: Xerox CorporationInventors: Jin Wu, Edward F Grabowski, Kent J Evans, Dale S Renfer
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Patent number: 8057973Abstract: 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.Type: GrantFiled: January 27, 2009Date of Patent: November 15, 2011Assignee: Xerox CorporationInventors: Jin Wu, Edward F Grabowski, Lin Ma, Lanhui Zhang
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Patent number: 8057974Abstract: Disclosed is an imaging member comprising a conductive substrate, a photogenerating layer comprising a photogenerating material in contact with the substrate, and a charge transport layer in contact with the photogenerating layer, the charge transport layer comprising a charge transport material, a polymer containing carboxylic acid groups or groups capable of forming carboxylic acid groups, and a hydroquinone antioxidant, wherein the photogenerating layer is situated between the charge transport layer and the conductive substrate.Type: GrantFiled: December 11, 2008Date of Patent: November 15, 2011Assignee: Xerox CorporationInventors: Gregory McGuire, Ah-Mee Hor
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Patent number: 8053150Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and a thiobis(thioformate) containing charge transport layer; a thiobis(thioformate) containing photogenerating layer, or where both at least one charge transport layer and the photogenerating layer includes, in addition to other components, a thiobis(thioformate).Type: GrantFiled: September 17, 2008Date of Patent: November 8, 2011Assignee: Xerox CorporationInventor: Jin Wu
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Patent number: 8053152Abstract: 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.Type: GrantFiled: February 27, 2009Date of Patent: November 8, 2011Assignee: Xerox CorporationInventors: Jin Wu, Dennis J Prosser, Kathleen M Carmichael, Sherri A Toates, Kent J Evans, Edward F Grabowski
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Publication number: 20110269063Abstract: 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 phenolic resin and a glycoluril resin; a photogenerating layer; and at least one charge transport layer.Type: ApplicationFiled: April 28, 2010Publication date: November 3, 2011Applicant: XEROX CORPORATIONInventor: Jin Wu
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Publication number: 20110269064Abstract: 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: ApplicationFiled: April 28, 2010Publication date: November 3, 2011Applicant: XEROX CORPORATIONInventor: Jin Wu
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Patent number: 8043784Abstract: 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 charge transport layer comprising a top layer and a bottom layer, wherein the layers have varying concentrations of high quality N,N,N?N?-tetra(4-methylphenyl)-(1,1?-biphenyl)-4,4?-diamine to provide tunable discharge rate.Type: GrantFiled: January 31, 2008Date of Patent: October 25, 2011Assignee: Xerox CorporationInventors: Gregory McGuire, Jennifer A. Coggan, Johann Junginger, Nan-Xing Hu, Ah-Mee Hor
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Publication number: 20110256474Abstract: The presently disclosed embodiments relate in general to electrostatography comprising improved features in the flexible imaging member that enhance function when used in the electrostatographic imaging system. These embodiments pertain, more particularly, to a structurally simplified curl-free flexible electrostatographic imaging member belt containing a stress/strain free ground strip layer and stress/strain free imaging layer(s) to improve dynamic belt cyclic motion quality and extend service life.Type: ApplicationFiled: April 16, 2010Publication date: October 20, 2011Applicant: XEROX CORPORATIONInventors: Robert C. U. Yu, Stephen T. Avery, Yuhua Tong, Michael S. Roetker, Jimmy E. Kelly, Kyle B. Tallman
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Patent number: 8034519Abstract: Disclosed is an electrophotographic photoreceptor comprising on or over an electrically conductive support a photosensitive layer containing a pyranthrone compound represented by the following formula and the pyranthrone compound has a crystal structure exhibiting a CuK? X-ray diffraction spectrum having peaks at angles (2?±0.2°) of 12.3°, 20.5°, 25.3° and 28.3°.Type: GrantFiled: June 16, 2008Date of Patent: October 11, 2011Assignee: Konica Minolta Business Technologies, Inc.Inventors: Tomoko Sakimura, Toyoko Shibata, Shinichi Hamaguchi
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Publication number: 20110236811Abstract: The present embodiments are generally directed to layers that are useful in imaging apparatus members and components, for use in electrophotographic, including digital, apparatuses. More particularly, the embodiments pertain to an electrophotographic imaging member having a novel charge transport layer formed from a coating solution that is doped with specific solvents which provides a charge transport layer with superior electrical properties, and methods for making the same. In particular, the coating solution is doped with a small amount of an aprotic organic solvent.Type: ApplicationFiled: March 24, 2010Publication date: September 29, 2011Applicant: XEROX CORPORATIONInventors: Edward F. Grabowski, Yuhua Tong
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Patent number: 8026027Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and an (enylaryl)bisarylamine containing charge transport layer.Type: GrantFiled: June 30, 2008Date of Patent: September 27, 2011Assignee: Xerox CorporationInventor: Jin Wu
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Patent number: 8012656Abstract: A photoconductor that includes, for example, a backing layer, a supporting substrate, a photogenerating layer, and a charge transport layer, and wherein the outermost layer of the backing layer is comprised of an acrylic resin and a crosslinkable fluoro additive.Type: GrantFiled: May 30, 2008Date of Patent: September 6, 2011Assignee: Xerox CorporationInventors: Jin Wu, Lanhui Zhang, Lin Ma
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Patent number: 8012655Abstract: The presently disclosed embodiments are directed to an imaging member having an outermost layer formulation that includes wax particles which creates a rough surface morphology for the layer and imparts increased scratch resistance, reduced torque, and improved cleaning performance to the layer. In embodiments, the outermost layer is an overcoat layer used for an improved imaging member having a substrate, a charge transport layer, and an overcoat positioned on the charge transport layer.Type: GrantFiled: April 22, 2008Date of Patent: September 6, 2011Assignee: Xerox CorporationInventors: Kathy L. De Jong, Nan-Xing Hu, Yvan Gagnon, Yu Qi, Ah-Mee Hor, Cuong Vong, Vladislav Skorokhod
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Patent number: 8007971Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and a tris(enylaryl)amine containing charge transport layer.Type: GrantFiled: June 30, 2008Date of Patent: August 30, 2011Assignee: Xerox CorporationInventor: Jin Wu
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Publication number: 20110207042Abstract: 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: ApplicationFiled: February 25, 2010Publication date: August 25, 2011Applicant: XEROX CORPORATIONInventor: Jin Wu
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Patent number: 8003289Abstract: 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 at least one of the photogenerating layer and charge transport layer contains a ferrocene.Type: GrantFiled: May 30, 2008Date of Patent: August 23, 2011Assignee: Xerox CorporationInventor: Jin Wu
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Patent number: 8003286Abstract: An object of the present invention is to provide an electrophotographic photoreceptor which is not impaired in electrophotographic properties such as charge potential and residual potential and which is also excellent in repetition stability. The invention relates to an electrophotographic photoreceptor including a conductive support having thereon a photosensitive layer containing a zirconium compound represented by the following general formula (1): and one or more charge transport agents having an arylamino group in its molecule.Type: GrantFiled: September 8, 2006Date of Patent: August 23, 2011Assignee: Hodogaya Chemical Co., Ltd.Inventors: Katsumi Abe, Makoto Koike, Atsushi Takesue
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Patent number: 8003285Abstract: 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 23, 2011Assignee: Xerox CorporationInventors: Robert C. U. Yu, Yuhua Tong, Stephen T. Avery, Michael S. Roetker
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Patent number: 8003288Abstract: Disclosed is a photoconductive member including a self-healing composite coating having a polymer matrix, a photoconductive component, a healing material encapsulated within nano- or microcapsules, and an optional catalyst, that is capable of repairing physical damage to the photoconductive member when the capsule ruptures. Also disclosed is photoconductive member including a substrate, an undercoat layer, a charge generating layer, a charge transport layer, and an optional protective overcoat layer; in which one layer of the photoconductive member further includes a healing material encapsulated within nano- or microcapsules and an optional catalyst, and that is capable or reparing physical damage to the photoconductive member when the capsule ruptures. Also disclosed is an imaging forming apparatus including same.Type: GrantFiled: March 4, 2008Date of Patent: August 23, 2011Assignee: Xerox CorporationInventors: Kathy L De Jong, Nan-Xing Hu, Giuseppa Baranyi
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Patent number: 8003287Abstract: The present invention provides an electrophotographic photoconductor comprising an electroconductive substrate and a photosensitive layer provided on the electroconductive substrate, wherein the photosensitive layer comprises a charge-generating material and a charge-transporting material, the charge-transporting material comprising a compound represented by the general formula (1): wherein Ar1 and Ar2 each independently represent an optionally-substituted arylene or bivalent heterocyclic group; Ar3 and Ar4 each independently represent a hydrogen atom, or an optionally-substituted aryl or monovalent heterocyclic group, but are not simultaneously hydrogen atoms; or Ar3 and Ar4 may be taken together to form an optionally-substituted bivalent cyclic hydrocarbon or heterocyclic group; and n is 0 or 1.Type: GrantFiled: December 17, 2007Date of Patent: August 23, 2011Assignee: Sharp Kabushiki KaishaInventors: Takatsugu Obata, Akihiro Kondoh
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Publication number: 20110195354Abstract: The present invention provides an electrophotographic photoreceptor including a photosensitive layer on a conductive substrate, an outermost layer of the electrophotographic photoreceptor including a cured film of a composition which includes at least one charge transporting compound (a) having a charge transporting skeleton and at least two structural units represented by R—O—CO—CR??CH—R? in the same molecule, and at least one polycarbonate resin; a ratio (IA/IC) of an absorption peak intensity (IA) resulting from stretching vibration of a carbonyl group originating from the structural unit represented by R—O—CO—CR??CH—R? of the charge transporting compound (a) to an absorption peak intensity (IC) resulting from stretching vibration of a carbonyl group originating from the polycarbonate resin in an IR absorption spectrum of the outermost layer being from about 0.5 to about 10, and a width at half maximum of the absorption peak of the absorption peak intensity (IA) being about 25 cm?1 or more.Type: ApplicationFiled: September 8, 2010Publication date: August 11, 2011Applicant: FUJI XEROX CO., LTD.Inventors: Katsumi NUKADA, Wataru YAMADA, Tsuyoshi MIYAMOTO, Kenya SONOBE, Takatsugu DOI
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Patent number: 7993805Abstract: 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 polyalkylene glycol benzoate.Type: GrantFiled: December 22, 2009Date of Patent: August 9, 2011Assignee: Xerox CorporationInventors: Jin Wu, Sherri A Toates, John J Wilbert, Emily K Redman
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Patent number: 7989128Abstract: 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.Type: GrantFiled: March 31, 2008Date of Patent: August 2, 2011Assignee: Xerox CorporationInventors: Daniel V Levy, Liang-Bih Lin, Jin Wu
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Patent number: 7989129Abstract: A photoconductor that includes, for example, 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 hydroxyquinoline.Type: GrantFiled: March 31, 2008Date of Patent: August 2, 2011Assignee: Xerox CorporationInventors: Jin Wu, Dennis J Prosser, J. Robinson Cowdery-Corvan, Raymond K Crandall, David M Skinner, Jean D Van Epps, Jr.
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Patent number: 7985521Abstract: 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 at least one of the photogenerating layer and charge transport layer contains an anthracene, including derivatives thereof.Type: GrantFiled: May 30, 2008Date of Patent: July 26, 2011Assignee: Xerox CorporationInventor: Jin Wu
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Publication number: 20110176831Abstract: 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.Type: ApplicationFiled: March 29, 2011Publication date: July 21, 2011Applicant: XEROX CORPORATIONInventors: Robert C. U. Yu, Edward F. Grabowski, Kathleen M. Carmichael, Stephen T. Avery, Satish Parikh
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Patent number: 7981578Abstract: 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 an aminoquinoline.Type: GrantFiled: March 31, 2008Date of Patent: July 19, 2011Assignee: Xerox CorporationInventor: Jin Wu
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Patent number: 7981579Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one, charge transport layer, such as 1, 2, 3, or 4 layers, and more specifically, 2 layers, and wherein the photogenerating layer contains a thiadiazole.Type: GrantFiled: March 31, 2008Date of Patent: July 19, 2011Assignee: Xerox CorporationInventors: Jin Wu, Markus R Silvestri, Dale S Renfer, Ryan J Ehmann
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Patent number: 7981580Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and a charge transport layer that includes a charge transport component, and a mixture of a bis(enylaryl)arylamine and a tris(enylaryl)amine.Type: GrantFiled: June 30, 2008Date of Patent: July 19, 2011Assignee: Xerox CorporationInventor: Jin Wu
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Patent number: 7972756Abstract: 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 of ketal. In embodiments, the charge transport layer may include an ?-hydroxyketone, an ?-diketone, or mixtures thereof.Type: GrantFiled: December 20, 2007Date of Patent: July 5, 2011Assignee: Xerox CorporationInventor: Jin Wu
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Patent number: 7968261Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and a charge transport layer, and wherein at least one of the charge transport layer and the photogenerating layer contains a zirconocene.Type: GrantFiled: May 30, 2008Date of Patent: June 28, 2011Assignee: Xerox CorporationInventor: Jin Wu
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Patent number: 7968263Abstract: 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 an amine phosphate.Type: GrantFiled: May 30, 2008Date of Patent: June 28, 2011Assignee: Xerox CorporationInventor: Jin Wu
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Patent number: 7968262Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and a bis(enylaryl)arylamine containing charge transport layer.Type: GrantFiled: June 30, 2008Date of Patent: June 28, 2011Assignee: Xerox CorporationInventor: Jin Wu
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Publication number: 20110151365Abstract: 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 polyalkylene glycol benzoate.Type: ApplicationFiled: December 22, 2009Publication date: June 23, 2011Applicant: XEROX CORPORATIONInventors: Jin Wu, Sherri A Toates, John J Wilbert, Emily K Redman
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Publication number: 20110151366Abstract: 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 or layers contains a sulfonamide.Type: ApplicationFiled: December 22, 2009Publication date: June 23, 2011Applicant: Xerox CorporationInventor: Jin Wu
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Patent number: 7960080Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and a charge transport layer, and wherein at least one of the charge transport layer and the photogenerating layer contains an oxadiazole.Type: GrantFiled: March 31, 2008Date of Patent: June 14, 2011Assignee: Xerox CorporationInventor: Jin Wu
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Patent number: 7960079Abstract: 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 at least one of the photogenerating layer and charge transport layer contains a phenazine.Type: GrantFiled: April 30, 2008Date of Patent: June 14, 2011Assignee: Xerox CorporationInventor: Jin Wu