1,1' Biphenyl 4,4' Diamine (e.g., Benzidine, Etc.) Patents (Class 430/58.8)
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Patent number: 7585603Abstract: A curable resin composition for use as a constituting material of an electrophotographic photoreceptor, comprises: a phenolic resin; a charge transportable material having a reactive functional group; and at least one of an organic sulfonic acid and its derivative.Type: GrantFiled: June 1, 2006Date of Patent: September 8, 2009Assignee: Fuji Xerox Co., Ltd.Inventors: Wataru Yamada, Katsumi Nukada, Masahiro Iwasaki, Kenji Yao
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Publication number: 20090220876Abstract: Disclosed is an electrophotographic imaging member that includes a lubricant delivering coating having a polymer matrix, a charge transport component, and a lubricant encapsulated within nano- or microcapsules. Also disclosed is an imaging forming apparatus including a charging device, a toner developer device, a cleaning device, and a photoreceptor having a conductive substrate, a charge generating layer, a charge transport layer, and an optional overcoat layer, such that the outmost layer of the photoreceptor contains a lubricant encapsulated within nano- or microcapsules. Additionally provided is a method of forming an image with the disclosed electrophotographic imaging member.Type: ApplicationFiled: March 3, 2008Publication date: September 3, 2009Applicant: XEROX CORPORATIONInventors: Kathy L. DE JONG, Nan-Xing HU, Giuseppa BARANYI
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Patent number: 7582399Abstract: Imaging members useful in electrostatographic apparatuses, including printers, copiers, other reproductive devices, and digital apparatuses. More particularly, imaging members having nano polymeric gel particles embedded into one or more layers of the imaging member that provide for increased mechanical strength and improved wear.Type: GrantFiled: June 22, 2006Date of Patent: September 1, 2009Assignee: Xerox CorporationInventors: Satchidanand Mishra, Yuhua Tong, Kathleen Carmichael, Markus Silvestri, Susan Vandusen, Chieh-Min Cheng, Huoy-Jen Yuh, Cindy Chen, Lanhui Zhang
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Patent number: 7579126Abstract: 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.Type: GrantFiled: March 6, 2007Date of Patent: August 25, 2009Assignee: Xerox CorporationInventors: Jin Wu, Dennis J. Prosser, Satchidanand Mishra, Liang-Bih Lin, Daniel V. Levy, Lin Ma
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Publication number: 20090208857Abstract: 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 in contact with the charge transport layer an overcoat layer comprised of a fluorinated poly(oxetane) polymer.Type: ApplicationFiled: February 19, 2008Publication date: August 20, 2009Applicant: Xerox CorporationInventors: Jin Wu, Lanhui Zhang, Lin Ma, Dale S. Renfer
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Publication number: 20090208858Abstract: 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 said backing layer is comprised of a self crosslinked acrylic resin and a crosslinkable siloxane component.Type: ApplicationFiled: February 19, 2008Publication date: August 20, 2009Applicant: XEROX CORPORATIONInventors: Jin Wu, Lanhui Zhang, Lin Ma, Dale S. Renfer
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Publication number: 20090202928Abstract: Embodiments of a photoconductor for use in a printer or printer cartridge comprise an electrically conductive substrate, a charge generation layer disposed over the electrically conductive substrate, and a charge transport layer disposed over the charge generation layer, wherein the charge transport layer comprises charge transport molecules with octyl/decyl glycidyl ether (OGE) or dodecyl/ tetradecyl glycidyl ether (DGE), or combinations thereof, added to improve resistance to crazing, cracking and crystallization in the change transport layer.Type: ApplicationFiled: February 12, 2008Publication date: August 13, 2009Inventors: David Glenn Black, James Alan Hartman, Ronald Harold Levin, Weimei Luo, Dat Quoc Nguyen, Tanya Yvonne Thames
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Patent number: 7569317Abstract: An imaging member is disclosed which includes a charge generating layer and a charge transport layer. The charge transport layer includes a first charge transport layer adjacent the charge generating layer and at least a second charge transport layer adjacent the first charge transport layer. Each charge transport layer includes a film forming polymer binder and a charge transport material dispersed therein. The first charge transport material has a composition which is the same or different than the second charge transport material and of a lower concentration. It may be selected from an aryl amine, aryl diamine, or combinations thereof. The combination has the effect of reducing charge deficient spots.Type: GrantFiled: December 21, 2005Date of Patent: August 4, 2009Assignee: Xerox CorporationInventors: Satchidanand Mishra, Kathleen M. Carmichael, Yuhua Tong, Anthony M. Horgan, Edward F. Grabowski, Richard L. Post, Susan M. VanDusen
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Patent number: 7560206Abstract: A photoconductor containing an optional supporting substrate, a silanol containing photogenerating layer, and at least one charge transport layer.Type: GrantFiled: July 12, 2006Date of Patent: July 14, 2009Assignee: Xerox CorporationInventors: Jin Wu, John S. Chambers, Satchidanand Mishra, Michael A. Morgan, Liang-Bih Lin
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Patent number: 7560208Abstract: A photoconductor containing a substrate, an undercoat layer thereover comprising a resin mixture of, for example, a polyol resin, and an aminoplast resin, and a polyester, and a metal oxide; a photogenerating layer and at least one, such as 1 to about 4, charge transport layer.Type: GrantFiled: August 1, 2006Date of Patent: July 14, 2009Assignee: Xerox CorporationInventors: Liang-Bih Lin, Daniel V. Levy, Jin Wu, Francisco J. Lopez
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Publication number: 20090175650Abstract: 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: ApplicationFiled: December 5, 2008Publication date: July 9, 2009Applicant: SHARP KABUSHIKI KAISHAInventors: Akiko KIHARA, Kotaro Fukushima, Takatsugu Obata, Akihiro Kondoh
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Patent number: 7553593Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer, and wherein the photogenerating layer contains a titanyl phthalocyanine prepared, for example, by dissolving a Type I titanyl phthalocyanine in a solution comprising a trihaloacetic acid and an alkylene halide; adding the mixture comprising 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.Type: GrantFiled: June 22, 2006Date of Patent: June 30, 2009Assignee: Xerox CorporationInventors: Jin Wu, Satchidanand Mishra, Kathleen M. Carmichael, Anthony M. Horgan, Kent J. Evans, Geoffrey M T. Foley, Yonn K. Rasmussen, Edward F. Grabowski, Liang-Bih Lin
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Publication number: 20090162767Abstract: 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 where the charge transport layer contains a benzophenone.Type: ApplicationFiled: December 20, 2007Publication date: June 25, 2009Applicant: XEROX CORPORATIONInventor: Jin Wu
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Publication number: 20090162765Abstract: 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: ApplicationFiled: December 20, 2007Publication date: June 25, 2009Applicant: XEROX CORPORATIONInventor: Jin Wu
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Publication number: 20090162766Abstract: 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 an overcoat, and where the overcoat contains at least one of ketal. In embodiments the overcoat layer may include ?-hydroxyketone, ?-diketone, or mixtures thereof.Type: ApplicationFiled: December 20, 2007Publication date: June 25, 2009Applicant: XEROX CORPORATIONInventors: Jin Wu, John F. Yanus, Kenny-Tuan Dinh, Kent J. Evans
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Patent number: 7550239Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer, and wherein the photogenerating layer contains an alkyltriol, such as glycerol, and a photogenerating pigment, such as a Type V titanyl phthalocyanine prepared, for example, by dissolving a Type I titanyl phthalocyanine in a solution of a trihaloacetic acid and an alkylene halide; adding the mixture comprising the dissolved Type I titanyl phthalocyanine to a solution of an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine; and treating the Type Y titanyl phthalocyanine with a monohalobenzene.Type: GrantFiled: January 23, 2007Date of Patent: June 23, 2009Assignee: Xerox CorporationInventors: Cuong Vong, Ah-Mee Hor
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Patent number: 7547842Abstract: Disclosed herein is an organic electronic device comprising a charge transport layer comprising a host charge transport material and a guest charge transport material, wherein the guest material is not homogeneously distributed in the host material and is spatially doped within the host material. The charge transport layer may be either a hole or electron transport layer and is useful in a variety of organic electronic devices.Type: GrantFiled: October 17, 2007Date of Patent: June 16, 2009Inventor: Ying Wang
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Publication number: 20090148784Abstract: 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 16.9°, 18.7° and 20.6°.Type: ApplicationFiled: December 4, 2008Publication date: June 11, 2009Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.,Inventors: Tomoko SAKIMURA, Toyoko SHIBATA, Shinichi HAMAGUCHI, Masanori YUMITA
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Patent number: 7544451Abstract: An imaging member containing a substrate, and an outer layer containing an antioxidant lubricant additive, and an image forming apparatus for forming images on a recording medium including the imaging member above, a development component to apply a developer material to said charge-retentive surface to develop said electrostatic latent image to form a developed image on said charge-retentive surface; a transfer component for transferring said developed image from said charge-retentive surface to another member or a copy substrate; and a fusing member to fuse said developed image to said copy substrate.Type: GrantFiled: July 28, 2005Date of Patent: June 9, 2009Assignee: Xerox CorporationInventors: Jin Wu, Robert P. Altavela, James R. Backus, Liang-Bih Lin
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Publication number: 20090130575Abstract: Disclosed is a photoreceptor including a substrate, a charge generating layer, and a charge transport layer having a tertiary aryl amine charge transport molecule represented by the following general formula in which Ar1, Ar2, Ar3, Ar4 and Ar5 each independently represents a substituted or unsubstituted aryl group, or Ar5 independently represents a substituted or unsubstituted arylene group, and k represents 0 or 1, and in which at least two of Ar1, Ar2, Ar3 and Ar4 includes a hydroxymethyl group or an alkoxymethyl group having from 1 to about 6 carbon atoms, having an oxidation potential of from about 0.75 V to about 1.0 V as measured vs. Ag/AgCl in 0.1 M tetra-n-butylammonium perchlorate in dichloromethane, and an antioxidant capable of reacting with the charge transport molecule. Disclose is also a process for forming the photoreceptors described herein and a method of forming an image with the photoreceptors described herein.Type: ApplicationFiled: November 20, 2007Publication date: May 21, 2009Applicant: XEROX CORPORATIONInventors: Jennifer A. Coggan, Gregory McGuire, Nan-Xing Hu, Ah-Mee Hor
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Patent number: 7534536Abstract: A photoconductor containing a substrate, an undercoat layer thereover comprising a polyol resin, an aminoplast resin, a polyarylate, a siloxane modified polyarylate, an epoxy modified polyarylate, or a urethane modified polyarylate, or an amine modified polyarylate, and a metal oxide; a photogenerating layer, and at least one charge transport layer.Type: GrantFiled: August 1, 2006Date of Patent: May 19, 2009Assignee: Xerox CorporationInventors: Liang-Bih Lin, Daniel V. Levy, Jin Wu, Francisco J. Lopez
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Patent number: 7527903Abstract: A flexible imaging member which does not require the use of an anti-curl back coating is disclosed herein. The flexible imaging member has a layer comprising two charge transport molecules dispersed in a film-forming polymer binder. The first charge transport molecule is a biphenyl amine, terphenyl diamine, or bis(triarylamine) stilbene. The second charge transport molecule is a bis(triarylamine), tri-p-tolylamine, or triphenylamine. The weight ratio of second charge transport molecule to first charge transport molecule is from about 90:10 to about 67:33. Trifluoro acetic acid is also added to the layer containing the charge transport material.Type: GrantFiled: October 28, 2005Date of Patent: May 5, 2009Assignee: Xerox CorporationInventors: Kathleen M. Carmichael, Kent J. Evans, Kathy Lippman, legal representative, Satish Parikh, Donald Sullivan
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Patent number: 7524597Abstract: Imaging members useful in electrostatographic apparatuses, including printers, copiers, other reproductive devices, and digital apparatuses. More particularly, imaging members having nano-sized particles serving as fillers dispersed or contained in one or more layers of the imaging member that provide for increased mechanical strength and improved wear.Type: GrantFiled: June 22, 2006Date of Patent: April 28, 2009Assignee: Xerox CorporationInventors: Satchidanand Mishra, Yuhua Tong, Kathleen Carmichael, Chieh-Min Cheng, Kenny-tuan Dinh, Susan Vandusen, Cindy Chen, Huoy-Jen Yuh, Lanhui Zhang
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Publication number: 20090104552Abstract: 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: ApplicationFiled: September 8, 2006Publication date: April 23, 2009Applicant: Hodogaya Chemical Co., Ltd.Inventors: Katsumi Abe, Makoto Koike, Atsushi Takesue
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Publication number: 20090104551Abstract: Disclosed is an electrophotographic photoreceptor comprising on an electrically conductive support, a charge generation layer and a charge transport layer, wherein the charge transport layer comprises a charge transport material represented by formula (1) and exhibits a transmittance at 370 nm of not more than 10% and a transmittance at 405 nm of not less than 70%, and the charge transport layer further comprising a compound represented by formula (2), (3) or (4).Type: ApplicationFiled: October 9, 2008Publication date: April 23, 2009Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Tomoko SAKIMURA, Toyoko SHIBATA, Tomoo SAKIMURA, Takeshi ISHIDA, Shinichi HAMAGUCHI
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Publication number: 20090092911Abstract: 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.Type: ApplicationFiled: October 9, 2007Publication date: April 9, 2009Applicant: XEROX CORPORATIONInventors: Jin Wu, Edward F. Grabowski, Kent J. Evans, Andronique Ioannidis
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Publication number: 20090092908Abstract: 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 charge trapping releaser.Type: ApplicationFiled: October 9, 2007Publication date: April 9, 2009Applicant: XEROX CORPORATIONInventor: Jin Wu
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Patent number: 7510809Abstract: An electrophotographic photoreceptor including a charge generating layer and a charge transfer layer accumulated on a support member, the charge transfer layer including at least two layers of a support side layer and a surface side layer, wherein the support side layer contains A mol/cm3 of charge mol/cm3 of charge transfer material having a dipolar moment of not more than 0.75 and inorganic particles having a number average primary particle diameter of 3-150 nm, wherein A and B satisfies relations of (1) and (2), 9.0×10?4>A>3.0×10?4??(1) 8.0×10?4>B>2.0×10?5??(2).Type: GrantFiled: November 21, 2005Date of Patent: March 31, 2009Assignee: Konica Minolta Business Technologies, Inc.Inventors: Chigusa Yamane, Keiichi Inagaki, Kunihiro Ogura
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Patent number: 7507510Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, at least one polyphenyl ether of the formula wherein each R1, R2, and R3 is independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and n is from about 1 to about 10, and a thiophosphate.Type: GrantFiled: June 15, 2006Date of Patent: March 24, 2009Assignee: Xerox CorporationInventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin, Markus R. Silvestri
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Publication number: 20090061340Abstract: 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.Type: ApplicationFiled: August 31, 2007Publication date: March 5, 2009Applicant: XEROX CORPORATIONInventors: Liang-Bih Lin, Daniel V. Levy, Jin Wu, Dennis J. Prosser
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Publication number: 20090061338Abstract: 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 boron containing compound.Type: ApplicationFiled: August 31, 2007Publication date: March 5, 2009Applicant: XEROX CORPORATIONInventor: Jin Wu
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Publication number: 20090061339Abstract: 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 triazole.Type: ApplicationFiled: August 31, 2007Publication date: March 5, 2009Applicant: XEROX CORPORATIONInventor: Jin Wu
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Publication number: 20090061337Abstract: 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.Type: ApplicationFiled: August 31, 2007Publication date: March 5, 2009Applicant: XEROX CORPORATIONInventors: Jin Wu, Liang-Bih Lin, Daniel V. Levy, Marko D. Saban
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Publication number: 20090061336Abstract: 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 said photogenerating layer contains a light stabilizer.Type: ApplicationFiled: August 31, 2007Publication date: March 5, 2009Applicant: XEROX CORPORATIONInventor: Jin Wu
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Patent number: 7498109Abstract: An imaging member including a substrate; a charge generation layer positioned on the substrate; at least one charge transport layer positioned on the charge generation layer; and an undercoat layer positioned on the substrate on a side opposite the charge generation layer, the undercoat layer comprising a thiophosphate, and optionally one or more additional undercoat layer components.Type: GrantFiled: July 6, 2006Date of Patent: March 3, 2009Assignee: Xerox CorporationInventors: Jin Wu, Geoffrey M. T. Foley, Satchidanand Mishra, Liang-bih Lin, Anthony M. Horgan, Yonn K. Rasmussen, Kathleen M. Carmichael, Edward F. Grabowski
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Patent number: 7498108Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer and at least one charge transport layer, and wherein said photogenerating layer contains at least one thiophosphate.Type: GrantFiled: June 15, 2006Date of Patent: March 3, 2009Assignee: Xerox CorporationInventors: Jin Wu, Satchidanand Mishra, Kent J. Evans, J. Robinson Cowdery-Corvan, Anthony M. Horgan, Geoffrey M T. Foley, Kathleen M. Carmichael, Liang-Bih Lin
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Patent number: 7491480Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer, and wherein the at least one charge transport layer contains at least one thiophosphate.Type: GrantFiled: June 15, 2006Date of Patent: February 17, 2009Assignee: Xerox CorporationInventors: Jin Wu, Satchidanand Mishra, Kent J. Evans, J. Robinson Cowdery-Corvan, Anthony M. Horgan, Geoffrey M T. Foley, Kathleen M. Carmichael, Liang-Bih Lin
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Publication number: 20090035017Abstract: There is provided an electrophotographic photoconductor containing a conductive substrate, and a photosensitive layer, disposed thereon, containing a charge transporting material having a triarylamine structure represented by General Formula 1, and wherein the photosensitive layer satisfies Mathematical Formula 1 when peak heights in raman scattering spectra of the triarylamine structure are measured at a wavenumber of 1,324±2 cm?1 by a confocal raman spectroscopy using z-polarized light: where Ar1, Ar2, and Ar3 are substituted or unsubstituted aromatic hydrocarbon groups, and Ar1 and Ar2, Ar2 and Ar3, and Ar3 and Ar1 are optionally combined to form heterocyclic rings, respectively, ?=I(inside)/I(surface)?1.Type: ApplicationFiled: September 10, 2007Publication date: February 5, 2009Inventors: Hiromi TADA, Nozomu TAMOTO, Katsuichi OHTA
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Publication number: 20090035675Abstract: A photoconductor that includes, for example, a substrate; an undercoat layer thereover wherein the undercoat layer contains a metal oxide, and a copper containing compound; a photogenerating layer; and at least one charge transport layer.Type: ApplicationFiled: July 31, 2007Publication date: February 5, 2009Applicant: XEROX CORPORATIONInventor: Jin Wu
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Publication number: 20090035674Abstract: A photoconductor that includes a substrate; an undercoat layer thereover comprised of a metal oxide, and an ultraviolet light absorber component; a photogenerating layer; and at least one charge transport layer.Type: ApplicationFiled: July 31, 2007Publication date: February 5, 2009Applicant: XEROX CORPORATIONInventor: Jin Wu
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Publication number: 20090035676Abstract: A photoconductor that includes, for example, a substrate; an undercoat layer thereover wherein the undercoat layer contains a metal oxide and an iodonium containing compound; a photogenerating layer; and at least one charge transport layer.Type: ApplicationFiled: July 31, 2007Publication date: February 5, 2009Applicant: XEROX CORPORATIONInventor: Jin Wu
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Publication number: 20090035673Abstract: A photoconductor that includes a substrate; an undercoat layer thereover wherein the undercoat layer contains, for example, a metal oxide, and an iron containing compound; a photogenerating layer; and at least one charge transport layer.Type: ApplicationFiled: July 31, 2007Publication date: February 5, 2009Applicant: XEROX CORPORATIONInventor: Jin Wu
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Patent number: 7479358Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, at least one C-ether of the formula wherein R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and the sum of n plus m (n+m) is from about 1 to about 10, and a thiophosphate.Type: GrantFiled: June 15, 2006Date of Patent: January 20, 2009Assignee: Xerox CorporationInventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin, Markus R. Silvestri
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Patent number: 7476477Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer and at least one charge transport layer, and wherein the at least one charge transport layer contains at least one thiophosphate, and wherein the thiophosphate is present in an amount of from about 0.005 to about 0.09 weight percent.Type: GrantFiled: June 15, 2006Date of Patent: January 13, 2009Assignee: Xerox CorporationInventors: Jin Wu, Geoffrey M T. Foley, Edward C. Savage, Liang-Bih Lin
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Patent number: 7476478Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer and at least one charge transport layer of at least one charge transport component, at least one polyphenyl thioether of the formula wherein R1, R2, and R3 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen mixtures thereof, and n is a number of, for example, from about 1 to about 10.Type: GrantFiled: June 15, 2006Date of Patent: January 13, 2009Assignee: Xerox CorporationInventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin
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Publication number: 20090011349Abstract: 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: ApplicationFiled: January 18, 2007Publication date: January 8, 2009Applicant: Hodogaya Chemical Co., Ltd.Inventors: Katsumi Abe, Makoto Koike, Atsushi Takesue
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Patent number: 7473505Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer, at least one C-ether of the formula wherein R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and the sum of n plus m (n+m) is from about 1 to about 10.Type: GrantFiled: June 15, 2006Date of Patent: January 6, 2009Assignee: Xerox CorporationInventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin
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Publication number: 20090004584Abstract: A process which comprises treating a hydroxygallium phthalocyanine Type I with a weak acid having a pKa of at least equal to or greater than about ?3, and subsequently contacting the hydroxygallium phthalocyanine Type I with an organic solvent.Type: ApplicationFiled: June 27, 2007Publication date: January 1, 2009Applicant: XEROX CORPORATIONInventor: Jin Wu
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Publication number: 20090005555Abstract: A process which includes treating, mixing, or contacting a Type I titanyl phthalocyanine with a weak acid with a pKa of at least equal to or greater than about 0; dissolving the acid treated Type I titanyl phthalocyanine in a solution of a trihaloacetic acid and an alkylene halide; adding the formed mixture to a solution of an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine; and treating the Type Y titanyl phthalocyanine with monohalobenzene thereby resulting in a high sensitivity titanyl phthalocyanine.Type: ApplicationFiled: June 27, 2007Publication date: January 1, 2009Applicant: XEROX CORPORATIONInventor: Jin Wu
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Publication number: 20080318146Abstract: The presently disclosed embodiments are directed to charge transport layers useful in electrostatography. More particularly, the embodiments pertain to an electrostatographic imaging member comprising a charge transport layer that exhibits improved charge mobility transport and comprises novel terphenyl compounds.Type: ApplicationFiled: June 21, 2007Publication date: December 25, 2008Applicant: XEROX CORPORATIONInventors: Nancy Belknap, John F. Yanus, Markus R. Silvestri, Helen R. Cherniack, Edward Grabowski