Process Of Making Radiation-sensitive Composition Patents (Class 430/135)
-
Patent number: 11329314Abstract: Disclosed are a sulfide-based solid electrolyte imparted with improved lithium ion conductivity and a method of preparing the same. More particularly, disclosed is a sulfide-based solid electrolyte containing a lithium element (Li), a phosphorus element (P), a sulfur element (S) and a halogen element (X), and including a crystal phase of an argyrodite crystal structure, wherein a molar ratio (X/P) of the halogen element (X) to the phosphorus element (P) is higher than 1.Type: GrantFiled: October 8, 2019Date of Patent: May 10, 2022Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hyoung chul Kim, Byung Kook Kim, Hun Gi Jung, Kyung Yoon Chung, Jong Ho Lee, Hae Weon Lee, Ji Won Son, Eu Deum Jung, Ji Su Kim, Sung Jun Choi
-
Patent number: 9921499Abstract: An electrophotographic photosensitive member includes a substrate and a photosensitive layer containing a phthalocyanine pigment. The crystalline particles of the phthalocyanine pigment have a crystallite correlation length r and a particle size R of 400 nm or less, and a parameter k defined by r/R is in the range of 0.17 to 0.42.Type: GrantFiled: October 26, 2016Date of Patent: March 20, 2018Assignee: CANON KABUSHIKI KAISHAInventors: Kaname Watariguchi, Shoma Hinata, Kazuko Sakuma, Tsutomu Nishida, Jumpei Kuno, Hirofumi Kumoi, Masato Tanaka, Masataka Kawahara, Yuto Ito, Isao Kawata
-
Publication number: 20150099225Abstract: A method of preparing a photoconductor drum having an overcoat layer is provided. The photoconductor drum is used in an electrophotographic image forming device. The photoconductor drum is prepared from a curable composition including a urethane resin having at least six radical polymerizable functional groups and a charge transport molecule having at least one radical polymerizable functional group. The amount of the urethane resin having at least six radical polymerizable functional groups in the curable composition is about 35 percent to about 65 percent by weight. The amount of the charge transport molecules having at least one radical polymerizable functional group in the curable composition is about 35 percent to about 65 percent by weight. This overcoat layer improves wear resistance of the photoconductor drum without negatively altering the electrophotographic properties, thus protecting the photoconductor drum from damage and extending its useful life.Type: ApplicationFiled: December 15, 2014Publication date: April 9, 2015Inventors: Mark Thomas Bellino, David Glen Black, Weimei Luo, Scott Daniel Reeves
-
Patent number: 9000101Abstract: The disclosure describes a neat, one-pot scheme for reacting a hydroxyl propagating end of a polymer with a cyclic acid anhydride to form a free acid terminus.Type: GrantFiled: July 10, 2013Date of Patent: April 7, 2015Assignee: Xerox CorporationInventors: Andrew J. Myles, Jordan H. Wosnick, Karen A. Moffat, Valerie M. Farrugia
-
Publication number: 20150037732Abstract: The present teachings describe a process of forming a charge transport layer (CTL) coating dispersion. The process includes mixing a surfactant and a first organic solvent until the surfactant is completely solubilized. Fluoroplastic particles are added to the solubilized surfactant and first organic solvent while mixing to form a slurry. The slurry includes a particulate solid content of from about 5 weight percent to about 60 weight percent. The process includes mixing a base solution that includes a charge transport material, a binder, an antioxidant and a second organic solvent. The base solution is added to the slurry while mixing to form a CTL pre-mix dispersion.Type: ApplicationFiled: August 1, 2013Publication date: February 5, 2015Applicant: Xerox CorporationInventors: Lanhui Zhang, Lin Ma
-
Patent number: 8790853Abstract: The present disclosure is directed to charge generating compositions and methods of making the charge generating compositions. The composition may comprise one or more polymers comprising styrene units and allyl alcohol units, and one or more photoconductive particles. Electrophotographic devices employing the compositions, including methods of making the devices, are also disclosed.Type: GrantFiled: March 1, 2006Date of Patent: July 29, 2014Assignee: Xerox CorporationInventors: Jin Wu, John J. Wilbert, Marc J. Livecchi, Liang-bih Lin
-
Patent number: 8568952Abstract: The present teachings describe a process for mixing comprising obtaining a dispersion of solid particles and an organic solvent wherein the dispersion comprises a particulate solid content of from about 0.5 weight percent to about 10 weight percent. The dispersion is mixed at a resonant frequency of the mixing system.Type: GrantFiled: January 25, 2012Date of Patent: October 29, 2013Assignee: Xerox CorporationInventors: Cuong Vong, Marko Saban, Vladislav Skorokhod, Lanhui Zhang, Lin Ma, Norman Chi Su, Zhen Lai
-
Publication number: 20130280652Abstract: An object of the invention is to provide a method of making a p-terphenyl compound mixture which includes two symmetric p-terphenyl compounds respectively represented by formula (1) and formula (2) and an asymmetric p-terphenyl compound represented by formula (3)Type: ApplicationFiled: June 12, 2013Publication date: October 24, 2013Inventors: Shinya NAGAI, Atsushi Takesue, Makoto Koike, Katsumi Abe, Takehiro Nakajima
-
Patent number: 8535860Abstract: A coating liquid for an undercoat layer of an electrophotographic photoreceptor which is formed by sequentially stacking the undercoat layer and a photosensitive layer on an electrically conductive support, wherein the coating liquid comprises titanium oxide microparticles and silicon nitride microparticles as an inorganic compound, a binder resin and an organic solvent.Type: GrantFiled: February 20, 2009Date of Patent: September 17, 2013Assignee: Sharp Kabushiki KaishaInventors: Satoshi Katayama, Kohichi Toriyama, Mami Adachi, Kotaro Fukushima, Junichi Washo
-
Publication number: 20130189616Abstract: The present teachings describe a process for mixing comprising obtaining a dispersion of solid particles and an organic solvent wherein the dispersion comprises a particulate solid content of from about 0.5 weight percent to about 10 weight percent. The dispersion is mixed at a resonant frequency of the mixing system.Type: ApplicationFiled: January 25, 2012Publication date: July 25, 2013Applicant: XEROX CORPORATIONInventors: Cuong Vong, Marko Saban, Vladislav Skorokhod, Lanhui Zhang, Lin Ma, Norman C. Su, Zhen Lai
-
Patent number: 8349457Abstract: Perfluoroisopropyl-substituted perfluorophtalocyanines, including zinc (II), copper (II) and oxo-vanadium (IV) complexes of 29H,31H,1,4,8,11,15,18,22,25-octakis-fluoro-2,3,9,10,16,17,23,24-octakis-perfluoro(isopropyl)phthalocyanine (F64Pc), may be sublimed under high vacuum conditions. The compounds/molecules produce advantageous thin films (20-100 nm) on glass substrates by physical vapor deposition. Many potential applications of the disclosed compounds/molecules are disclosed, e.g., as semiconductor materials. In situ electrical conduction and optical transmission measurements during the deposition process reveal the formation of conducting pathways and potential microscopic intermolecular electronic couplings.Type: GrantFiled: December 1, 2009Date of Patent: January 8, 2013Assignee: New Jersey Institute of TechnologyInventors: Sergiu M. Gorun, Olga Tsaryova, Lukasz Lapok
-
Publication number: 20120231379Abstract: Provided is a fluorine-containing resin particle dispersion including: fluorine-containing resin particles, a resin which is not dissolved in at least one solvent in a group of hydroxyl group-containing solvents including an alcohol-based solvent having 1 to 10 carbon atoms, containing no aromatic ring in the molecule structure, and a water-based medium, and which is adhered on the surface of the fluorine-containing resin particles, and at least one solvent, in which the resin is not dissolved, in the group of hydroxyl group-containing solvents, in which the fluorine-containing resin particles having the resin adhered on the surface thereof are dispersed.Type: ApplicationFiled: August 12, 2011Publication date: September 13, 2012Applicant: FUJI XEROX CO., LTD.Inventors: Katsumi NUKADA, Wataru YAMADA, Takatsugu DOI, Yuko IWADATE
-
Patent number: 8124193Abstract: Methods of controlling gloss of an image are disclosed. The methods may include forming an image over a substrate by applying an ink composition and optionally an overcoat composition at least partially over the substrate. The ink composition or overcoat composition may include at least one gellant, at least one curable monomer, optionally at least one curable wax and optionally at least one photoinitiator. The ink composition or overcoat composition may be curable upon exposure to radiation. The methods may further include providing a micro-roughness to one or more portions of the ink composition or overcoat composition by non-uniformly curing the ink composition or overcoat composition, and flood curing the ink composition or overcoat composition to complete a cure. The methods may thereby provide a controlled gloss level to the image.Type: GrantFiled: March 9, 2009Date of Patent: February 28, 2012Assignee: Xerox CorporationInventors: Jennifer L. Belelie, Michelle N. Chretien, Barkev Keoshkerian, Naveen Chopra, Peter G. Odell, Christopher A. Wagner
-
Patent number: 8101327Abstract: Disclosed herein is an electrophotographic imaging member comprising a substrate, a charge transport layer and an overcoat layer formed by combining a film forming binder and a hole transporting hydroxy triarylamine compound having at least one hydroxyl functional group that is linked to a ring carbon of an aryl group by an alkyl group having 1 to 12 carbon atoms and is capable of forming at least one of a chemical bond and a physical bond with the film forming binder. Also disclosed is an electrophotographic imaging member with an overcoat layer formed by combining a film forming polycarbonate binder, a hole transport material, a surface energy reducing silicone material comprising a crosslinkable acrylate monomer, and a solvent. Coatings and methods of forming imaging members also are disclosed.Type: GrantFiled: August 31, 2006Date of Patent: January 24, 2012Assignee: Xerox CorporationInventors: Yuhua Tong, Cindy C. Chen, Susan M. VanDusen
-
Publication number: 20120008984Abstract: An electrophotographic photoconductor having a photosensitive layer and a crosslinked resin surface layer over a support, wherein shapes of concaves and convexes in a surface of the electrophotographic photoconductor are measured by a surface roughness/profile measuring device to obtain one-dimensional data arrays, the arrays are subjected to multiresolution analysis (MRA-1) through wavelet transformation to be separated into six frequency components including HHH, HHL, HMH, HML, HLH and HLL to obtain one-dimensional data arrays, the arrays of the HHL are thinned out to be reduced 1/10 to 1/100, thereby producing one-dimensional data arrays, which are then subjected to multiresolution analysis (MRA-2) through wavelet transformation to be separated into six frequency components including LHH, LHL, LMH, LML, LLH and LLL to thereby obtain 12 frequency components in total; and a center-line average roughness (WRa) of the 12 frequency components satisfies relationship (i) below.Type: ApplicationFiled: March 17, 2010Publication date: January 12, 2012Applicant: RICOH COMPANY. LTD.Inventors: Hidetoshi Kami, Junichi Yamazaki, Yukio Fujiwara, Kazuhiro Egawa
-
Patent number: 7998650Abstract: Disclosed herein is a method for preparing oxytitanium phthalocyanine as a charge generating material. The method comprises the steps of mixing 30˜100 wt % sulfuric acid and an oxytitanium phthalocyanine crude in a mixing ratio between 100:1 and 1:1, homogeneously grinding the mixture in a wet grinder filled with zirconia or glass beads as grinding media at ?20° C.˜60° C. for 0.1˜24 hours, and removing the grinding media from the ground mixture using a solvent. According to the method, oxytitanium phthalocyanine usable as a high-quality charge generating material can be prepared without the use of expensive and difficult-to-handle reactants, such as trifluoroacetic acid and pentafluoropropionic acid. Further disclosed is an oxytitanium phthalocyanine charge generating material prepared by the method.Type: GrantFiled: October 7, 2004Date of Patent: August 16, 2011Assignee: PHTALOS Co., Ltd.Inventors: Ki Suck Jung, Jong Ho Kwon, Seong Soo Park, Jun Sik Shin, Woo Ho Son, Seung Wook Song
-
Patent number: 7951515Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer, and where the photogenerating layer contains at least one photogenerating component, and a mixture of an ester thiol and a poly(vinyl halide) copolymer.Type: GrantFiled: November 24, 2008Date of Patent: May 31, 2011Assignee: Xerox CorporationInventors: Jin Wu, Marc J Livecchi, Linda L Ferrarese, John J Wilbert
-
Patent number: 7740774Abstract: A resonant enhanced photosensitive material includes a trap center that is adapted to interact with light and enhances the photosensitivity of the material based on a resonant interaction process with photons. The invention provides enhanced photosensitivity materials and, especially a method for enhancing photosensitivity in glasses, glass ceramics and ceramics.Type: GrantFiled: July 24, 2007Date of Patent: June 22, 2010Assignee: Schott AGInventors: Joseph S. Hayden, Bianca Schreder, Jose Zimmer
-
Patent number: 7713499Abstract: Apparatuses and methods for preparing sol-gel solutions are provided. Specifically, apparatuses include a vessel optionally containing a stirrer; a pump; a fluidized bed reaction column; and multiple fluid lines. The multiple fluid lines connect the vessel and the pump in a first circulation loop and connect the vessel, the pump and the fluidized bed reaction column in a second circulation loop. Processes for preparing sol-gel solutions using such apparatuses are also disclosed.Type: GrantFiled: April 28, 2006Date of Patent: May 11, 2010Assignee: Xerox CorporationInventors: Timothy P. Bender, David T. Borbely, Frank Ping-Hay Lee, Nan-Xing Hu
-
Patent number: 7670684Abstract: Coating compositions comprising perfluoroalkyl metallo and non-metallo perfluoro-phthalocyanine compounds and associated coating methods are provided by the present invention. Perfluoroalkyl metallo and non-metallo perfluoro-phthalocyanine compounds are suitable for use as functional coatings and may be optionally combined with conductive polymers. The functional properties imparted generally include one or more of chemical resistance, thermal resistance, biological and chemical non-stick surface behavior, electrochromism, variable electromagnetic field signatures, and/or non-linear optical properties.Type: GrantFiled: February 7, 2006Date of Patent: March 2, 2010Assignee: New Jersey Institute of TechnologyInventor: Sergiu M. Gorun
-
Publication number: 20100035169Abstract: An aromatic silicon-containing compound has the formula: Ar—[X-L-SiRn(OR?)3-n]m where Ar represents an aromatic group, X represents a divalent or trivalent group; L represents a divalent linking group; R represents a hydrogen atom, an alkyl group or an aryl group; R? represents an alkyl group having 1 to 5 carbon atoms; n is an integer of from 0 to 2; and m is an integer of from 1 to 5. The aromatic silicon-containing compound can be used in electrophotographic photoreceptors, particularly in outmost protective layers of such electrophotographic photoreceptors.Type: ApplicationFiled: September 14, 2009Publication date: February 11, 2010Applicant: XEROX CORPORATIONInventors: Yu QI, Nan-Xing HU, John F. GRAHAM, Timothy P. BENDER, Ah-Mee HOR, Yvan GAGNON, Cheng-Kuo HSIAO
-
Patent number: 7629103Abstract: A photoconductor comprising a photosensitive layer disposed on an support, wherein the photosensitive layer has at least a crosslinked layer and the crosslinked layer is produced by curing at least a radical polymerizable monomer having three or more functionalities and no charge transport structure and a radical polymerizable compound having a charge transport structure through irradiating a light energy in an atmosphere having a low oxygen concentration of 0.001 vol % to 2.0 vol %.Type: GrantFiled: June 21, 2005Date of Patent: December 8, 2009Assignee: Ricoh Company, Ltd.Inventors: Hiroshi Ikuno, Hiroshi Tamura, Tetsuro Suzuki, Yoshiki Yanagawa
-
Publication number: 20090214260Abstract: An objective is to provide an organic photoreceptor exhibiting high sensitivity, suitable for exposure to a semiconductor laser having an emission wavelength of 350-500 nm or a light emitting diode, with which generation of memory images as well as image defects caused by very small charge leakage is inhibited, and also to provide an image forming apparatus fitted with the organic photoreceptor. Also disclosed is an organic photoreceptor possessing a charge generation layer and a charge transport layer provided on a conductive substrate, wherein the charge generation layer contains particles made of a condensed polycyclic pigment, having an average major axis length of 500 nm or less, an average aspect ratio of 2.5-5.0, and an aspect ratio variation coefficient of 16% or less.Type: ApplicationFiled: February 23, 2009Publication date: August 27, 2009Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Tomoo SAKIMURA, Takeshi ISHIDA
-
Patent number: 7575838Abstract: An imaging member including a substrate; thereover a charge generation layer comprising a thiophosphate; and at least one charge transport layer positioned on the charge generation layer.Type: GrantFiled: July 6, 2006Date of Patent: August 18, 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, Markus Rudolf Silvestri
-
Publication number: 20090202274Abstract: A coating fluid for photosensitive-layer formation having high productivity and stability and a process thereof are provided. Also provided are a high-performance electrophotographic photoreceptor and an image-forming apparatus which are capable of forming high-quality images even in various use environments and are less apt to cause image defects such as black spots or color spots. The objects are accomplished with a process for producing a coating fluid which is for forming a photosensitive layer of an electrophotographic photoreceptor and comprises a charge-generating material and a binder resin, wherein a dispersing medium having an average particle diameter in the range of from 1.0 ?m to 350 ?m is used as a dispersing medium for dispersing the charge-generating material in the coating fluid for photosensitive-layer formation. The coating fluid for photosensitive-layer formation produced by this process is preferable as a photosensitive layer of an electrophotographic photoreceptor.Type: ApplicationFiled: May 18, 2007Publication date: August 13, 2009Applicant: Mitsubishi Chemical CorporationInventors: Teruyuki Mitsumori, Kozo Ishio, Hiroe Fuchigami
-
Publication number: 20090053633Abstract: 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: ApplicationFiled: January 24, 2007Publication date: February 26, 2009Applicant: HODOGAYA CHEMICAL CO., LTD.Inventors: Shinya Nagai, Atsushi Takesue, Makoto Koike, Katsumi Abe, Takehiro Nakajima
-
Publication number: 20080254381Abstract: A chemical toner composition including a polymer polymerized from starting ingredients comprising a resin monomer and a release agent monomer.Type: ApplicationFiled: April 10, 2007Publication date: October 16, 2008Applicant: XEROX CORPORATIONInventors: Daryl W. Vanbesien, Edward G. Zwartz, Cuong Vong, Maria N V. McDougall, Timothy P. Bender, Jennifer L. Belelie, Tyler Norsten
-
Publication number: 20080199795Abstract: An electrophotographic photosensitive member having excellent electrophotographic properties, a method of manufacturing the electrophotographic photosensitive member, and a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member are provided. The surface layer of the electrophotographic photosensitive member includes a polymer having a specific repeating structural unit and fluorine-atom-containing resin particles. The fluorine-atom-containing particles in the surface layer are dispersed so as to be provided with particle sizes almost up to those of primary particles.Type: ApplicationFiled: April 15, 2008Publication date: August 21, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Harunobu Ogaki, Nobumichi Miki, Kazunori Noguchi, Nobuo Kosaka
-
Patent number: 7410743Abstract: A method includes pre-milling a pigment by dry ball milling the pigment with crushed CO2 (s), reducing the size of particles of the pigment by milling the pigment with glass beads, measuring a size of the particles of the pigment, determining whether that size of the particles is acceptable and coating the imaging member with the pigment if it is determined that the size of the particles is acceptable. A system includes a mill, a measuring device, a coating device and a controller that controls the mill to dry ball mill a pigment with crushed CO2, and then controls the mill to reduce the size of the pigment by milling the pigment with glass beads. The controller controls the measuring device to measure a size of the particles of the pigment to determine whether the size of the particles is acceptable. The imaging member is then coated with the solution.Type: GrantFiled: May 27, 2005Date of Patent: August 12, 2008Assignee: Xerox CorporationInventors: John Chambers, Francisco Lopez, Liang-Bih Lin
-
Publication number: 20080107986Abstract: A salt-like hydrophobic structured silicate, wherein the cation of the salt-like structured silicate is a low molecular weight organic cation or a combination thereof with NH4+, H3O+, alkali metal, alkaline earth metal, earth metal and/or a transition metal ion. The anion of the salt-like structured silicate is an island, ring, group, chain, band, layer or tectosilicate or a combination thereof. The structured silicate is produced by (a) reacting a structured silicate, whose cation is NH4+, H3O+, an alkali metal, alkaline earth metal, earth metal, and/or transition metal ion or a combination thereof, and whose anion of which is an island, ring, group, chain, band, layer or tectosilicate, or a combination thereof, in an aqueous dispersion with a low molecular weight organic cation; (b) adding to and intensively blending with the aqueous structured silicate dispersion a hydrophobic compound from the group of waxes and metal soaps in a quantity ranging from 0.Type: ApplicationFiled: April 28, 2005Publication date: May 8, 2008Inventors: Eduard Michel, Ruediger Baur
-
Publication number: 20080096118Abstract: A polyester resin has a molecular weight distribution (MWD) of approximately from 1.0 to 2.2, wherein molecular weight distribution (MWD) is a weight-averaged molecular weight (Mw)/a number-averaged molecular weight (Mn); and a luminosity (L*) of from approximately 97.0 to 100 when the polyester resin is molded in a diameter of 5 cm and a thickness of 2 mm.Type: ApplicationFiled: May 9, 2007Publication date: April 24, 2008Applicant: FUJI XEROX CO., LTD.Inventors: Fumiaki Mera, Tetsuo Ohta
-
Publication number: 20080026311Abstract: The present invention relates to a resin emulsion being produced by neutralizing a resin binder containing acid group with a basic compound in an aqueous medium wherein the resin binder containing acid group contains a polyester produced from a raw monomer composition containing a trivalent or higher-valent polyhydric alcohol in an amount of 1 to 15 mol %; a process for producing the resin emulsion; and a toner for electrophotography using the resin emulsion. In the resin emulsion of the present invention, a resin is readily emulsified therein even when using a crosslinked polyester as the resin, and the resin emulsion is substantially free from hydrolysis of the resin and can produce a toner having an excellent heat-resistant storage property.Type: ApplicationFiled: July 6, 2007Publication date: January 31, 2008Applicant: KAO CORPORATIONInventors: Hiroshi MIZUHATA, Takashi Kubo, Takashi Mukai
-
Publication number: 20080013987Abstract: A toner for electrostatic image development comprising a binder resin and a colorant, the toner having a content of an aluminum element with respect to carbon of approximately 0.005 atm % to approximately 0.02 atm % as measured by X-ray photo-electron spectroscopy.Type: ApplicationFiled: February 8, 2007Publication date: January 17, 2008Applicant: FUJI XEROX CO., LTD.Inventors: Takeshi Shoji, Hiroshi Nakazawa, Masanobu Ninomiya, Shuji Sato, Eisuke Iwazaki
-
Patent number: 7270926Abstract: A process for preparing a charge generating layer comprising dispersing photoconductive phthalocyanine particles in a polymer matrix, the matrix comprising a polymeric film-forming reaction product of vinyl chloride, vinyl acetate, maleic acid, and hydroxyalkyl acrylate, in a solution of n-butyl acetate and methyl isobutyl ketone. An electrophotographic imaging member is also prepared comprising a charge generating layer prepared according to this process.Type: GrantFiled: December 15, 2004Date of Patent: September 18, 2007Assignee: Xerox CorporationInventors: Lanhui Zhang, Cindy C. Chen, Nancy Lynn Belknap, Francisco J. Lopez, Liang-Bih Lin, Andronique Ioannidis, Ed J. Radigan, John S. Chambers
-
Patent number: 7211359Abstract: A method for preparing a coating solution containing a cocrystallized titanyl phthalocyanine-titanyl fluorophthalocyanine, the method comprising: dry milling a charge-generation pigment or mixtures of charge-generation pigments; increasing the amorphousness of the pigment mixture as determined by X-ray crystallography using X-radiation characteristic of Cu K? at a wavelength of 1.Type: GrantFiled: April 30, 2004Date of Patent: May 1, 2007Assignee: Eastman Kodak CompanyInventors: Michel Frantz Molaire, Lloyd Anthony Lobo
-
Patent number: 7056632Abstract: An organic optoelectronic device includes a solution coatable thin film having a hole transporting material, an electron transporting material, and a photogenerating component uniformly dispersed therein. The thin film is about 0.2 microns or less, and can be spin-coated onto a substrate and further coated with electrodes.Type: GrantFiled: January 21, 2003Date of Patent: June 6, 2006Assignee: Xerox CorporatioinInventor: Andronique Ioannidis
-
Patent number: 7026084Abstract: In a process for forming an amorphous TiOPc/TiOFPc pigment mixture containing a low concentration of TiOFPc, a mixture containing phthalonitrile and titanium tetrachloride is subjected to reaction conditions effective to form lightly chlorine-substituted crude crystalline Cl—TiOPc. The lightly chlorine-substituted crude crystalline Cl—TiOPc is combined with crude crystalline TiOFPc in a weight ratio from about 75:25 Cl—TiOPc:TiOFPc to about 99.5:0.5 Cl—TiOPc:TiOFPC to form a crude crystalline pigment mixture, which is treated under conditions effective to form a substantially amorphous pigment mixture of Cl—TiOPc and TiOFPc. The substantially amorphous mixture can subsequently be converted to a nanocrystalline Cl—TiOPc/TiOFPc pigment composition containing a low concentration of TiOFPc.Type: GrantFiled: September 4, 2003Date of Patent: April 11, 2006Assignee: Eastman Kodak CompanyInventors: Michel F. Molaire, Jeanne E. Kaeding, Theodore Zubil, Jeffrey R. Murray
-
Patent number: 7011919Abstract: In a process for forming a self-dispersing crystalline phthalocyanine pigment composition of monodisperse nanoparticles, a mixture containing titanyl fluorophthalocyanines, unsubstituted titanyl phthalocyanine, and an organic monomeric dispersant but substantially free of organic solvents or inorganic salts is dry milled, thereby forming a substantially amorphous phthalocyanine pigment composition. The substantially amorphous composition is contacted with an organic solvent having a hydrogen bonding parameter gammac lower than about 8, thereby forming a self-dispersing cocrystalline phthalocyanine pigment composition of monodisperse nanoparticles containing titanyl fluorophthalocyanines and titanyl phthalocyanine, which can be used to form the charge generation layer of an electrophotographic element.Type: GrantFiled: September 4, 2003Date of Patent: March 14, 2006Assignee: Eastman Kodak CompanyInventors: Michel F. Molaire, Louis J. Sorriero
-
Patent number: 6958204Abstract: An electrophotographic photosensitive member includes a charge generating material and a charge transfer material. The charge transfer material contains a triarylamine compound synthesized from an amine compound and an aryl halide in the presence of a catalyst comprising a phosphine compound represented by formula (1) and a palladium compound: wherein Ar1 to Ar3 are each independently an alkyl or aryl group which may have a substituent group, and at least one of Ar1 to Ar3 is an aryl group. A process cartridge includes the electrophotographic photosensitive member.Type: GrantFiled: August 25, 2004Date of Patent: October 25, 2005Assignee: Canon Kabushiki KaishaInventors: Takakazu Tanaka, Mitsuhiro Kunieda, Yuka Nakajima, Harunobu Ohgaki
-
Patent number: 6818368Abstract: An electrophotographic photosensitive member includes a charge generating material and a charge transfer material. The charge transfer material contains a triarylamine compound synthesized from an amine compound and an aryl halide in the presence of a catalyst comprising a phosphine compound represented by formula (1) and a palladium compound: wherein Ar1 to Ar3 are each independently an alkyl or aryl group which may have a substituent group, and at least one of Ar1 to Ar3 is an aryl group. A process cartridge includes the electrophotographic photosensitive member.Type: GrantFiled: April 12, 2001Date of Patent: November 16, 2004Assignee: Canon Kabushiki KaishaInventors: Takakazu Tanaka, Mitsuhiro Kunieda, Yuka Nakajima, Harunobu Ohgaki
-
Publication number: 20040161692Abstract: In a process for forming a self-dispersing crystalline phthalocyanine pigment composition of monodisperse nanoparticles, a mixture containing titanyl fluorophthalocyanines, unsubstituted titanyl phthalocyanine, and an organic monomeric dispersant but substantially free of organic solvents or inorganic salts is dry milled, thereby forming a substantially amorphous phthalocyanine pigment composition. The substantially amorphous composition is contacted with an organic solvent having a hydrogen bonding parameter gammac lower than about 8, thereby forming a self-dispersing cocrystalline phthalocyanine pigment composition of monodisperse nanoparticles containing titanyl fluorophthalocyanines and titanyl phthalocyanine, which can be used to form the charge generation layer of an electrophotographic element.Type: ApplicationFiled: September 4, 2003Publication date: August 19, 2004Applicant: NexPress Solutions LLC and Heidelberg Digital LLCInventors: Michel F. Molaire, Louis J. Sorriero
-
Publication number: 20040142257Abstract: An organic optoelectronic device includes a solution coatable thin film having a hole transporting material, an electron transporting material, and a photogenerating component uniformly dispersed therein. The thin film is about 0.2 microns or less, and can be spin-coated onto a substrate and further coated with electrodes.Type: ApplicationFiled: January 21, 2003Publication date: July 22, 2004Applicant: XEROX CORPORATIONInventor: Andronique Ioannidis
-
Publication number: 20040110075Abstract: In a process for forming an amorphous TiOPc/TiOFPc pigment mixture containing a low concentration of TiOFPc, a mixture containing phthalonitrile and titanium tetrachloride is subjected to reaction conditions effective to form lightly chlorine-substituted crude crystalline Cl—TiOPc. The lightly chlorine-substituted crude crystalline Cl—TiOPc is combined with crude crystalline TiOFPc in a weight ratio from about 75:25 Cl—TiOPc:TiOFPc to about 99.5:0.5 Cl—TiOPc:TiOFPC to form a crude crystalline pigment mixture, which is treated under conditions effective to form a substantially amorphous pigment mixture of Cl—TiOPc and TiOFPc. The substantially amorphous mixture can subsequently be converted to a nanocrystalline Cl—TiOPc/TiOFPc pigment composition containing a low concentration of TiOFPc.Type: ApplicationFiled: September 4, 2003Publication date: June 10, 2004Applicant: NexPress Solutions LLCInventors: Michel F. Molaire, Jeanne E. Kaeding, Theodore Zubil, Jeffrey R. Murray
-
Patent number: 6713223Abstract: A device for articulated connection between a control element and a control rod having a ball head comprising a main body attachable to the control element. The main body envelops a locating section providing positive location for the ball head and has an opening area through which the control rod extends when the device is assembled. According to the invention, the locating section is in two parts whereby the main body forms a part into which the ball head can be introduced through a joint duct located outside the opening, while a molding insertable into the joint duct forms the other part of the locating section. As a result, a simple device is created, guaranteeing connection between the control element and the control rod which is backlash-free or has little backlash.Type: GrantFiled: October 17, 2001Date of Patent: March 30, 2004Assignee: FTE automotive GmbH & Co. KGInventors: Alexander Kühn, Stefan Gebert, Christoph Keller
-
Patent number: 6696214Abstract: The invention provides an electrophotographic photoreceptor, in which suppression of image defects and high sensitivity are compatible, and a method for production thereof. The invention also provides a coating fluid for forming a photosensitive layer and a method for production thereof, as well as an image-forming apparatus using said electrophoto-graphic photoreceptor. Briefly, the electrophoto-graphic photoreceptors may be constructed by forming an undercoating layer on a conductive support, and then forming a photosensitive layer on the undercoating layer. The undercoating layer contains titanium oxide particles in at least either needle shape or dendrite shape. The photosensitive layer contains an electric charge-generating material of which the primary particle size and cohesive particle size are in a range of 0.01 &mgr;m-10 &mgr;m. Accordingly, in the electrophotographic photoreceptors, it is possible to maintain high sensitivity and excellent durability and to form an image with no defect.Type: GrantFiled: January 6, 2003Date of Patent: February 24, 2004Assignee: Sharp Kabushiki KaishaInventors: Satoshi Katayama, Mikio Kakui, Masayuki Sakamoto, Tatsuhiro Morita, Sayaka Fujita, Tadashi Nakamura
-
Patent number: 6663761Abstract: The invention provides a fine pattern forming method in which a pattern interval of a resist pattern is narrowed, and a fine pattern forming material can be certainly formed on a surface of the resist pattern. In the method, a first resist layer containing a material generating acid by heating or light irradiation is coated on a substrate, is exposed through a pattern, and is developed. A developing solution is washed by a washing solution to form a first resist frame, and in a state where the washing solution is adhered to the substrate, a fine pattern forming material containing a material, which is cross-linked by the existence of acid, is coated on the substrate. Acid is generated in the first resist frame by heating or light irradiation, and the first resist frame is covered with a cross-linked layer generated on an interface between the first resist frame and the fine pattern forming material.Type: GrantFiled: April 6, 2001Date of Patent: December 16, 2003Assignee: TDK CorporationInventor: Akifumi Kamijima
-
Patent number: 6645687Abstract: A process comprising forming chlorogallium phthalocyanine (ClGaPc) in N-methyl-2-pyrrolidinone (NMP) to provide a ClGaPc (NMP) Type I; separately dry milling and then wet treating the Type I product to form Type II ClGaPc (NMP); blending the ClGaPc Type II product with hydroxygallium phthalocyanine (HOGaPc) Type V and a resin to form a coating mixture; coating the resulting mixture to form a photoconductive charge generator layer.Type: GrantFiled: May 10, 2002Date of Patent: November 11, 2003Assignee: Xerox CorporationInventors: Cuong Vong, George Liebermann, Richard A. Burt, Ah-Mee Hor
-
Publication number: 20030175605Abstract: The invention provides an electrophotographic photoreceptor, in which suppression of image defects and high sensitivity are compatible, and a method for production thereof. The invention also provides a coating fluid for forming a photosensitive layer and a method for production thereof, as well as an image-forming apparatus using said electrophoto-graphic photoreceptor. Briefly, the electrophoto-graphic photoreceptors may be constructed by forming an undercoating layer on a conductive support, and then forming a photosensitive layer on the undercoating layer. The undercoating layer contains titanium oxide particles in at least either needle shape or dendrite shape. The photosensitive layer contains an electric charge-generating material of which the primary particle size and cohesive particle size are in a range of 0.01 &mgr;m-10 &mgr;m. Accordingly, in the electrophotographic photoreceptors, it is possible to maintain high sensitivity and excellent durability and to form an image with no defect.Type: ApplicationFiled: January 6, 2003Publication date: September 18, 2003Applicant: Sharp Kabushiki KaishaInventors: Satoshi Katayama, Mikio Kakui, Masayuki Sakamoto, Tatsuhiro Morita, Sayaka Fujita, Tadashi Nakamura
-
Patent number: 6613488Abstract: A phthalimide salt compound is contained in a photosensitive material having a charge generating function. Such a photosensitive material exhibits high retention rates of the surface charge. An electrophotographic photoconductor comprising such a photosensitive material is useful in, for example, printers, photocopiers, and facsmilie machines.Type: GrantFiled: October 6, 2000Date of Patent: September 2, 2003Assignee: Fuji Electric Imaging Devices Co., Ltd.Inventors: Yoichi Nakamura, Shinjirou Suzuki, Hideki Kina, Kenichi Hara, Teruo Sasaki
-
Publication number: 20030054273Abstract: An electrophotographic photosensitive member exhibiting a high sensitivity and a potential stability on repetitive use and capable of suppressing image defects, such as black spots in a reversal development scheme, is provided. The photosensitive member includes a support, and a phthalocyanine layer formed on the support and a novel phthalocyanine crystal, which comprises a phthalocyanine compound and a substituted or unsubstituted condensed polycyclic hydrocarbon compound.Type: ApplicationFiled: August 23, 2002Publication date: March 20, 2003Inventors: Masato Tanaka, Hidetoshi Hirano, Kan Tanabe, Kazue Asakura, Atsushi Fujii