Organic Nitrogen Containing Binder (e.g., Polyamide, Etc.) Patents (Class 430/109.5)
  • Patent number: 10508225
    Abstract: The present disclosure provides a conductive particle, its manufacturing method and the anisotropic conductive adhesive. The conductive particle comprises a rigid inner core, a resin layer covering an outer surface of the rigid inner core, and a conductive layer covering an outer surface of the resin layer.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: December 17, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Huan Ni, Fengzhen Lv
  • Patent number: 9448501
    Abstract: A toner for developing an electrostatic image, which contains: resin particles (C), wherein the resin particles (C) each contain a resin particle (B) and resin particles (A) or a coating film (P) deposited on a surface of the resin particle (B), where the resin particle (B) contains a second resin (b) and a filler (f), wherein the resin particles (A) or the coating film (P) contains a first resin (a), wherein the second resin (b) contains a crystalline resin, and wherein the resin particle (B) contains the filler (f) in an amount of 15% by mass or greater.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: September 20, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Ryota Inoue, Yoshitaka Sekiguchi, Hiroaki Katoh, Shun Saito
  • Patent number: 9005860
    Abstract: An electrostatic-image developing toner contains a polyester resin prepared by addition reaction of a polycondensate of a carboxylic acid component and an alcohol component with an isocyanate-containing compound. The polycondensate has an active hydrogen group. The alcohol component includes a rosin diol represented by general formula (1): (wherein R1 and R2 are each independently hydrogen or methyl; L1, L2, and L3 are each independently a divalent linking group selected from the group consisting of carbonyl, carboxyl, ether, sulfonyl, optionally substituted linear alkylenes, optionally substituted cyclic alkylenes, optionally substituted arylenes, and combinations thereof; L1 and L2 or L1 and L3 are optionally taken together to form a ring; and A1 and A2 are rosin ester groups).
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: April 14, 2015
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Emi Miyata, Hirotaka Matsuoka, Susumu Yoshino, Yuki Sasaki
  • Patent number: 9005859
    Abstract: A colorless transparent toner containing a crystalline resin having a urethane bond and/or a urea bond.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: April 14, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Akiyoshi Sabu, Shinya Nakayama, Atsushi Yamamoto, Yukiko Nakajima, Hideyuki Santo
  • Patent number: 8962229
    Abstract: An electrostatic charge image developing toner is configured of a polycondensate of a polyol and a polycarboxylic acid including a trimellitic acid, includes a polyester resin with an ethylenic unsaturated bond, and has toner particles including a reaction product of the polyester resin and a compound having an imidazoline structure in a surface part, a molar ratio of the trimellitic acid is from 0.1 mol % to 10 mol % with respect to the entire polymerization components of the polyester resin, and a weight ratio of the compound having an imidazoline structure is from 0.1% by weight to 10% by weight with respect to the total weight of the toner particles excluding the compound having an imidazoline structure.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: February 24, 2015
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Akira Matsumoto, Yukiaki Nakamura, Satoshi Kamiwaki
  • Patent number: 8962736
    Abstract: A process and result for forming an electrically relaxable coating composite for an electrophotographic imaging component includes providing a non-functionalized soluble carbon nanotube complex, and mixing a polymer material with the soluble carbon nanotube complex. The electrically relaxable coating composite exhibits resistivity in the range or about 107 to about 1012 ohm-cm.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: February 24, 2015
    Assignee: Xerox Corporation
    Inventor: Kock-yee Law
  • Patent number: 8951705
    Abstract: A development agent containing toner that contains a binder resin having a crystalline resin that has a urethane and/or urea bond in its main chain, a coloring agent, and an organically modified inorganic laminate compound in which organic ions are at least partially substituted for ions present between layers of the organically modified inorganic laminate compound, and toner carrier that contains a core material whose surface is coated with a coating layer having a condensed compound of a melamine resin and/or a guanamine resin and an acrylic resin having a hydroxyl group.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: February 10, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Shinya Nakayama, Atsushi Yamamoto, Yukiko Nakajima, Masahide Yamada, Hideyuki Santo, Suzuka Amemori
  • Publication number: 20150037718
    Abstract: A toner, including: a crystalline resin; a non-crystalline resin; and a colorant, wherein the toner has a sea-island structure which includes a sea containing the crystalline resin and an island containing the non-crystalline resin and the colorant, wherein the island is 1.0 ?m or less in domain diameter, and wherein the toner is 1.7×104 Pa or less in storage elastic modulus at 160° C.
    Type: Application
    Filed: March 7, 2013
    Publication date: February 5, 2015
    Inventors: Tatsuya Morita, Kazumi Suzuki, Shingo Sakashita, Masana Shiba, Taichi Nemoto, Yoshitaka Yamauchi, Azumi Miyaake, Rintaro Takahashi
  • Publication number: 20150024317
    Abstract: A part material for printing three-dimensional parts with an electrophotography-based additive manufacturing system, the part material including a composition having a high-performance thermoplastic material and a charge control agent. The part material is provided in a powder form having a controlled particle size, and is configured for use in the electrophotography-based additive manufacturing system having a layer transfusion assembly for printing the three-dimensional parts in a layer-by-layer manner.
    Type: Application
    Filed: July 16, 2014
    Publication date: January 22, 2015
    Inventors: James E. Orrock, Steven A. Chillscyzn, Trevor I. Martin
  • Publication number: 20150024316
    Abstract: A part material for printing three-dimensional parts with an electrophotography-based additive manufacturing system, the part material including a composition having an engineering-grade thermoplastic material and a charge control agent. The part material is provided in a powder form having a controlled particle size, and is configured for use in the electrophotography-based additive manufacturing system having a layer transfusion assembly for printing the three-dimensional parts in a layer-by-layer manner.
    Type: Application
    Filed: July 16, 2014
    Publication date: January 22, 2015
    Inventors: James E. Orrock, Steven A. Chillscyzn, Trevor I. Martin
  • Patent number: 8916324
    Abstract: The present invention provides a toner containing base particles formed by emulsifying or dispersing, in an aqueous medium, a toner composition liquid which is obtained by dissolving or dispersing, in an organic solvent, at least a binder resin soluble in the organic solvent and a colorant masterbatch containing a colorant and a colorant dispersion resin, wherein the colorant dispersion resin is a resin having sparing solubility defined below: where the “sparing solubility” means that when 4 parts by mass of the colorant dispersion resin are added to and mixed with 10 parts by mass of the organic solvent, the mixture becomes white turbid at 25° C. or becomes a transparent solution once at 25° C. and then becomes white turbid within 12 hours.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: December 23, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazumi Suzuki, Tatsuya Morita
  • Patent number: 8883385
    Abstract: A toner includes a binder resin, a coloring agent, and a releasing agent containing two or more kinds of alkyl monoester compounds having a different number of carbon atoms in a range of from 30 to 50 carbon atoms. The toner has a crystallinity of 10% or more as measured by x-ray diffraction and/or the binder resin is a crystalline resin in an amount of 50% by weight or more of the binder resin. The two or more kinds of alkyl monoester compounds include a component A accounting for the largest amount ranging from 30% by weight to less than 50% by weight of the releasing agent and a component B accounting for the second largest amount ranging from 10% by weight to less than 50% by weight of the releasing agent.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: November 11, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Shingo Sakashita, Hiroshi Yamashita, Masahide Yamada, Shinya Nakayama, Atsushi Yamamoto, Yukiko Nakajima
  • Publication number: 20140301757
    Abstract: A toner including at least a crystalline resin as a binder resin, wherein a tetrahydrofuran soluble content of the toner includes 5.0% or more as a peak area of a component having a molecular weight of 100,000 or greater in a molecular weight distribution measured by gel permeation chromatography, and the tetrahydrofuran soluble content of the toner has a weight-average molecular weight of 20,000 to 60,000.
    Type: Application
    Filed: October 17, 2012
    Publication date: October 9, 2014
    Inventors: Shingo Sakashita, Shinya Nakayama, Masahide Yamada, Atsushi Yamamoto, Hideyuki Santo, Yukiko Nakajima, Suzuka Amemori
  • Patent number: 8852834
    Abstract: To provide a toner, including: a crystalline binder resin including a urethane bond or a urea bond, or both thereof; and a colorant, wherein the colorant has a number-average particle diameter of 0.5 ?m or less, and a ratio of particles having a particle diameter of 0.7 ?m or greater in a number-size distribution of the colorant is 5% by number or less.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: October 7, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideyuki Santo, Shinya Nakayama, Atsushi Yamamoto, Daiki Yamashita, Suzuka Amemori
  • Publication number: 20140272696
    Abstract: Toner contains a mother toner particle that contains a crystalline resin; and wax; and a coloring agent, wherein the area of endothermic peak derived from the crystalline resin during a first temperature rising as measured by differential scanning calorimetry is at least 20 J/g, wherein the ratio of the area of endothermic peak derived from the wax during a second time temperature rising as measured by differential scanning calorimetry (DSC) to the area of endothermic peak derived from the wax during a first time temperature rising as measured by differential scanning calorimetry is at least 0.50, wherein the ratio of the area of endothermic peak derived from the wax during a first time temperature rising as measured by differential scanning calorimetry to the area of endothermic peak derived from the crystalline resin during a first temperature rising as measured by differential scanning calorimetry is at least 0.10.
    Type: Application
    Filed: February 4, 2014
    Publication date: September 18, 2014
    Inventors: Hiroshi YAMASHITA, Toyoshi Sawada, Hideyuki Santo
  • Publication number: 20140272698
    Abstract: Toner contains a binder resin containing two or more kinds of crystalline resins; and a coloring agent, wherein the two or more kinds of crystalline resins have at least two endothermic peak temperatures in a set of endothermic peak temperatures of the two or more kinds of crystalline resins as measured by differential scanning calorimetry (DSC).
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventors: Masahide YAMADA, Atsushi Yamamoto, Satoyuki Sekiguchi, Keiji Makabe, Kohsuke Nagata, Toyoshi Sawada
  • Patent number: 8828633
    Abstract: To obtain a toner which has excellent charge rise and stability, tends to have a sharp charge distribution, has excellent pigment dispersion properties, exhibits no disarray in an image even during a high-speed copying operation, and can stably output high-resolution images. A toner comprising toner particle containing a binder resin, a colorant, resin PA, and resin PB, wherein the resin PA has unit A represented by Formula (1), the resin PB has unit B represented by Formula (2), a content “a” of the unit A in the toner particle is 2.00 ?mol/g or more, and a molar ratio b/a of the content “a” and a content “b” of the unit B in the toner particle is 0.10 or more and 10.00 or less.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: September 9, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hitoshi Itabashi, Takashi Kenmoku, Harumi Takada
  • Patent number: 8758969
    Abstract: A method for producing an antenna structure for an RFID device, a dry toner for use in producing an antenna for an RFID device and a RFID device comprising an antenna structure made of fused toner are disclosed. In a method for producing an antenna structure for an RFID device, a dry toner comprising a polymeric binder and metallic particles is provided. The toner comprises particles having a resistance allowing triboelectric charging or a resistance allowing inductive charging, wherein said metallic particles are nanoparticles having a mean particle size below approximately 500 nm in at least one direction. In the method, a continuous layer of the dry toner is applied to a substrate in a desired shape of an antenna via an electrophotographic printing process, and subsequently the toner is fused to the substrate by heating the toner above its glass transformation temperature.
    Type: Grant
    Filed: December 22, 2007
    Date of Patent: June 24, 2014
    Assignee: Eastman Kodak Company
    Inventors: Detlef Schulze-Hagenest, Dinesh Tyagi
  • Patent number: 8709694
    Abstract: A polyurethane resin which is an addition polymer, includes an isocyanate compound containing at least a compound having two or more isocyanate groups; and an alcohol compound containing rosin diol represented by Formula (1): wherein in Formula (1), R1 and R2 represent a hydrogen atom or a methyl group, L1, L2, and L3 each independently represent a carbonyl group, an ester group, an ether group, a sulfonyl group, a chain alkylene group which may have a substituent, a cyclic alkylene group which may have a substituent, an arylene group which may have a substituent, and a divalent linking group selected from a group consisting of combinations of the above-described groups, wherein L1 and L2 or L1 and L3 may form a ring together, and A1 and A2 represent a rosin ester group.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: April 29, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hirotaka Matsuoka, Sumiaki Yamasaki, Yuki Sasaki, Satoshi Hiraoka, Hirofumi Shiozaki, Emi Miyata
  • Publication number: 20140080051
    Abstract: To provide a toner (X), which contains toner particles, each toner particle contains: a core phase (Q) containing a crystalline resin (A); and a shell phase (S) provided on a surface of the core phase (Q), where the shell phase (S) contains a crystalline polyurethane resin (B), wherein maximum peak temperature (Ta) of heat of melting of the crystalline resin (A) is 40° C. to 70° C., and maximum peak temperature (Tu) of heat of melting of the crystalline polyurethane resin (B) is 50° C. to 90° C.
    Type: Application
    Filed: September 17, 2013
    Publication date: March 20, 2014
    Inventors: Toyoshi SAWADA, Masahide YAMADA, Atsushi YAMAMOTO, Tatsuya MORITA, Satoyuki SEKIGUCHI, Keiji MAKABE, Kousuke NAGATA
  • Publication number: 20140080047
    Abstract: To provide an electrophotographic toner, which contains a crystalline resin, a non-crystalline resin, a colorant, and a releasing agent, wherein the toner has a storage elastic modulus of 5.0×104 Pa to 5.0×106 Pa at 80° C., and a storage elastic modulus of 2.0×102 Pa to 2.0×103 Pa at 140° C., and wherein the toner has a ratio (C)/((C)+(A)) of 0.10 or greater, where (C) is an integrated intensity of a diffraction spectrum derived from a crystalline structure, (A) is an integrated intensity of a diffraction spectrum derived from a non-crystalline structure, and the diffraction spectrum is a diffraction spectrum of the toner as measured by an X-ray diffraction spectrometer.
    Type: Application
    Filed: September 17, 2013
    Publication date: March 20, 2014
    Inventors: Rintaro TAKAHASHI, Kazumi SUZUKI, Masana SHIBA, Tatsuya MORITA, Yoshitaka YAMAUCHI, Azumi MIYAAKE
  • Patent number: 8669033
    Abstract: Provided is a toner containing toner particles containing a polyester resin which has a structure part represented by Formula (1): wherein, “A” represents a polyester structure unit having at least one linking group; R1 represents a hydrogen atom, or a chlorine atom; R2 represents a hydrogen atom, a chlorine atom, or a methoxy group; and “L” represents a divalent organic group.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: March 11, 2014
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Mikio Kouyama, Ken Ohmura, Kenji Hayashi, Hiroaki Obata, Koji Shibata
  • Publication number: 20140065534
    Abstract: A toner, including: a crystalline resin containing a urethane bond, a urea bond, or both thereof; and a compound represented by the following General Formula (1), wherein an amount of the compound represented by the General Formula (1) is 0.01% by mass to 0.25% by mass: CnH2n+1R??General Formula (1) where n is 8 to 22 and R is COOH, NH2 or OH.
    Type: Application
    Filed: August 29, 2013
    Publication date: March 6, 2014
    Inventors: Suzuka AMEMORI, Atsushi Yamamoto, Masahide Yamada, Yukiko Nakajima, Shinya Nakayama, Hideyuki Santo
  • Publication number: 20140051019
    Abstract: Toner contains a binder resin containing a crystalline resin having a urethane and/or urea bonding; and a colorant, wherein in a diffraction spectrum of the toner as measured by an X-ray diffraction instrument, a ratio {C/(C+A)} of an integral intensity C of the spectrum derived from the crystalline structure to an integral intensity A of the spectrum derived from the non-crystalline structure is 0.12 or greater, wherein the toner satisfies the following relation 1: T1?T2?30° C. (Relation 1), where T1 represents the maximum endothermic peak in the first temperature rising from 0° C. to 100° C. at the temperature rising rate of 10° C./min and T2 represents the maximum exothermic peak in the first temperature falling from 100° C. to 0° C. at the temperature falling rate of 10° C./min as T1 and T2 are measured by diffraction scanning calorimetry (DSC).
    Type: Application
    Filed: August 5, 2013
    Publication date: February 20, 2014
    Inventors: Satoyuki Sekiguchi, Hiroshi Yamashita, Minoru Masuda, Susumu Chiba, Tatsuya Morita, Atsushi Yamamoto, Shinya Nakayama, Masahide Yamada, Kohsuke Nagata, Keiji Makabe, Toyoshi Sawada
  • Patent number: 8652720
    Abstract: Environmentally friendly latex particles are provided which include a gelling agent and a pigment encapsulated in an amorphous resin which may be utilized in forming EA super low melt toners. Methods for providing these resins and toners are also provided.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: February 18, 2014
    Assignee: Xerox Corporation
    Inventors: Hadi K. Mahabadi, Ke Zhou, Michelle N. Chretien, Edward Graham Zwartz, Guerino G. Sacripante
  • Patent number: 8628852
    Abstract: Disclosed are core-shell resin particles (C2) each comprising one or more film-like shell layers (P) comprising a resin (a) which is a polyurethane resin and a core layer (Q) comprising a resin (b). A core-shell resin particle (C2) is characterized in that the weight ratio between (P) and (Q) is from 0.1:99.9 to 70:30, the volatile content in the resin particle (C2) is not more than 2 weight %, and the content of vinyl resins in the resin (b) is not more than 30 weight %. Such resin particles have a uniform particle diameter and are excellent in electrostatic properties, thermal and storage stability and thermal characteristics.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: January 14, 2014
    Assignee: Sanyo Chemical Industries Ltd.
    Inventors: Takashi Akutagawa, Tsuyoshi Izumi
  • Patent number: 8603715
    Abstract: A toner including a core particle and projections at a surface of the core particle is provided. The core particle includes a binder resin and a colorant. The binder resin includes a crystalline resin as a major component. Each of the projections consists of a fine resin particle. An average length of long sides of the projections is not less than 0.15 ?m and less than 0.5 ?m. A standard deviation of lengths of the long sides of the projections is 0.2 or less. A surface coverage of the toner with the projections is within a range of 30 to 90%.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: December 10, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Suzuka Amemori, Atsushi Yamamoto, Masahide Yamada, Shinya Nakayama, Hideyuki Santo, Daiki Yamashita
  • Publication number: 20130252158
    Abstract: An electrophotographic toner, including: a binder resin; a colorant; and an organically-modified layered inorganic mineral, wherein the binder resin contains 50% by mass or more of a crystalline resin relative to the binder resin, and the crystalline resin contains a resin having a sulfonic acid group, and wherein an amount of the sulfonic acid group is 0.1% by mass to 2.0% by mass relative to the resin having the sulfonic acid group.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 26, 2013
    Inventors: Masahide YAMADA, Shinya NAKAYAMA, Atsushi YAMAMOTO, Hideyuki SANTO, Shingo SAKASHITA, Yukiko NAKAJIMA, Suzuka AMEMORI, Akiyoshi SABU
  • Publication number: 20130244011
    Abstract: A colorless transparent toner containing a crystalline resin having a urethane bond and/or a urea bond.
    Type: Application
    Filed: February 4, 2013
    Publication date: September 19, 2013
    Inventors: Akiyoshi SABU, Shinya NAKAYAMA, Atsushi YAMAMOTO, Yukiko NAKAJIMA, Hideyuki SANTO
  • Patent number: 8497056
    Abstract: A magenta toner characterized by satisfying, in DSC measurement, 40.0?Tg(0.5)?60.0 and 2.0?Tg(4.0)?Tg(0.5)?10.0, wherein when preparing a solution of which the magenta toner is dissolved in ethyl acetate, and defined the concentration of the thereof as Cm1 (mg/ml), and the light absorbance thereof at a wavelength of 538 nm as A(ethyl acetate)538, the ratio of A(ethyl acetate)538 to Cm1 satisfies the formula, A(ethyl acetate)538/Cm1<0.15, and, when preparing a solution of which the magenta toner is dissolved in chloroform, and defined the concentration of the thereof as Cm2 (mg/ml), and the light absorbance thereof at a wavelength of 538 nm as A(chloroform)538, the ratio of A(chloroform)538 to Cm2 satisfies the formula, 2.00<A(chloroform)538/Cm2<6.55.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: July 30, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ayako Sekikawa, Takaaki Kaya, Atsushi Tani, Shigeto Tamura
  • Publication number: 20130157183
    Abstract: A developer, including a toner including a binder resin comprising a crystalline resin; and a colorant, and a resin carrier comprising a resin; a magnetic particulate material having a magnetic anisotropy, dispersed in the resin, and having a saturated magnetization of from 16 to 30 emu/g, a coercive force of from 15 to 40 kA/m and an average particle diameter not less than 15 ?m and less than 100 ?m.
    Type: Application
    Filed: November 16, 2012
    Publication date: June 20, 2013
    Inventors: Hideyuki Santo, Masahide Yamada, Kazumi Suzuki, Shinya Nakayama, Atsushi Yamamoto, Tatsuya Morita, Shingo Sakashita, Yukiko Nakajima, Keiji Makabe, Daiki Yamashita
  • Publication number: 20130143155
    Abstract: To provide a toner, including: a crystalline binder resin including a urethane bond or a urea bond, or both thereof, and a colorant, wherein the colorant has a number-average particle diameter of 0.5 ?m or less, and a ratio of particles having a particle diameter of 0.7 ?m or greater in a number-size distribution of the colorant is 5% by number or less.
    Type: Application
    Filed: November 19, 2012
    Publication date: June 6, 2013
    Inventors: Hideyuki SANTO, Shinya NAKAYAMA, Atsushi YAMAMOTO, Daiki YAMASHITA, Suzuka AMEMORI
  • Publication number: 20130130168
    Abstract: Provided is a toner containing toner particles, each of which includes a binder resin containing a polyester as a main component, a colorant, and a wax, in which the binder resin includes a block polymer in which a segment capable of forming a crystalline structure and a segment incapable of forming a crystalline structure are bonded, the toner has a maximum endothermic peak from the binder resin, as determined by differential scanning calorimetry measurement, with a peak temperature in a specific range and with an endothermic quantity in a specific range, and the wax is an ester wax having a functionality of 3 or more.
    Type: Application
    Filed: January 14, 2013
    Publication date: May 23, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Canon Kabushiki Kaisha
  • Publication number: 20130115550
    Abstract: A toner including a core particle and projections at a surface of the core particle is provided. The core particle includes a binder resin and a colorant. The binder resin includes a crystalline resin as a major component. Each of the projections consists of a fine resin particle. An average length of long sides of the projections is not less than 0.15 ?m and less than 0.5 ?m. A standard deviation of lengths of the long sides of the projections is 0.2 or less. A surface coverage of the toner with the projections is within a range of 30 to 90%.
    Type: Application
    Filed: October 19, 2012
    Publication date: May 9, 2013
    Inventors: Suzuka Amemori, Atsushi Yamamoto, Masahide Yamada, Shinya Nakayama, Hideyuki Santo, Daiki Yamashita
  • Patent number: 8361689
    Abstract: The present invention provides an electrostatographic toner that has a condensation polymer binder having carboxylic acid end groups and an acid number of 4 or greater. The carboxylic end groups are converted to metal salts having the structure; (—COO?1)nM+n where M is selected from groups IB, IIB, IIIB, IVB, VB, or IA, IIA, IIIA, IVA, VA, VIA, VIIA and VIIIA of the periodic table and n is an integer from 1-4. The present invention also provides a developer of carrier particles and the electrostatographic toner.
    Type: Grant
    Filed: November 5, 2007
    Date of Patent: January 29, 2013
    Assignee: Eastman Kodak Company
    Inventors: Robert A. Guistina, Dinesh Tyagi, Jason Morgan
  • Publication number: 20130011776
    Abstract: Disclosed is a decolorable toner produced by aggregating dispersed fine particles of a color material containing at least a color-forming compound, a color-developing agent and a decoloring agent with dispersed fine particles containing at least a binder resin having a carboxyl group, then adding a compound having a carbodiimide group or an epoxy group reactive with the carboxyl group of the binder resin, and thereafter fusing the aggregate particles, respectively in an aqueous medium. The thus obtained decolorable toner can suppress the generation of fine powder by the release of erasable color material fine particles from the toner particles.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 10, 2013
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Takayasu Aoki, Motonari Udo, Tsuyoshi Itou, Masahiro Ikuta, Takafumi Hara
  • Publication number: 20120288789
    Abstract: Environmentally friendly latex particles are provided which include a gelling agent and a pigment encapsulated in an amorphous resin which may be utilized in forming EA super low melt toners. Methods for providing these resins and toners are also provided.
    Type: Application
    Filed: May 11, 2011
    Publication date: November 15, 2012
    Applicant: XEROX CORPORATION
    Inventors: Hadi K. Mahabadi, Ke Zhou, Michelle N. Chrétien, Edward Graham Zwartz, Guerino G. Sacripante
  • Publication number: 20120282000
    Abstract: To provide a toner for electrophotography, which contains a binder resin, a colorant, and an organic-modified layered inorganic mineral, wherein the binder resin contains a crystalline resin in an amount of 50% by mass or greater, and wherein the organic-modified layered inorganic mineral is an organic-modified layered inorganic mineral in which at least part of ions present between layers of a layered inorganic mineral are modified with organic ions.
    Type: Application
    Filed: April 27, 2012
    Publication date: November 8, 2012
    Inventors: Shinya Nakayama, Atsushi Yamamoto, Masahide Yamada, Hideyuki Santo, Daiki Yamashita, Suzuka Amemori
  • Patent number: 8304157
    Abstract: A toner for an electrophotography and its manufacturing method are disclosed. The toner comprises toner particles containing a cross-linked polymer having two-valent crosslinking group represented by Formula (1), wherein, R1 is a hydrogen atom or a chlorine atom, R2 is a hydrogen atom, a chlorine atom or a methoxy group. The toner satisfies storage durability against heat as well as sufficient low temperature fixing ability.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: November 6, 2012
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Mikio Kouyama, Ken Ohmura, Kenji Hayashi, Yukio Hosoya, Hiroaki Obata, Koji Shibata
  • Patent number: 8126369
    Abstract: The invention provides an image forming apparatus, comprising: an electrophotographic photoreceptor, a charging unit, an exposure unit, a developing unit, a transfer unit, a fixing unit, and a cleaning unit; the electrophotographic photoreceptor having an outermost layer containing a charge transporting material and at least one curable resin selected from the group consisting of a phenol resin, an epoxy resin and a melamine resin, and the toner having an ammonium ion concentration as determined by ion chromatography of from about 50 ppm to about 300 ppm.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: February 28, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Susumu Yoshino
  • Patent number: 8062821
    Abstract: A toner containing a binder resin including a unit of a polyester resin I having an amino group and another unit of a polyester resin II having an anion functional group and a coloring agent, wherein the toner is manufactured by dissolving or dispersing the polyester resin I, the polyester resin II and the coloring agent in an organic solvent to obtain an oil phase, dispersing the oil phase in an aqueous medium and removing the organic solvent followed by drying.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: November 22, 2011
    Assignee: Ricoh Company, Limited
    Inventors: Atsushi Yamamoto, Chiyoshi Nozaki, Tsuyoshi Nozaki
  • Publication number: 20110281212
    Abstract: A compound that includes an aqueous dispersion, wherein the dispersion includes a thermoplastic resin and at least one stabilizing agent, and at least one selected from the group consisting of a colorant and a magnetic pigment, wherein the dispersion has an average volume diameter particle size from about 0.05 to about 10 microns is described.
    Type: Application
    Filed: July 27, 2011
    Publication date: November 17, 2011
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: John Klier, Richard Dicran Varjian, Alastair Stewart Hill
  • Patent number: 8039188
    Abstract: An electrostatic image developing toner including a binder resin; and a colorant, and satisfying following conditions (1) and (2): 0.02?CA/CB?0.20??(1) 1?Nt/St?15??(2) wherein CA represents an amount of a carboxyl group and its salt on a surface of the toner, CB represents an amount of a carboxyl group and its salt in the entire toner, Nt represents an amount of a nitrogen element on the surface of the toner, and St represents an amount of a sulfur element on the surface of the toner.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: October 18, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Norihito Fukushima
  • Publication number: 20110171571
    Abstract: The disclosure provides an electrophotographic toner and methods for preparing the same, including a first binder resin, a second binder resin, a colorant, a releasing agent, a charge control agent, and an ionomer, wherein the second binder resin is a resin derived biomass.
    Type: Application
    Filed: August 11, 2010
    Publication date: July 14, 2011
    Applicant: Samsung Electronics Co., Ltd
    Inventor: In KIM
  • Publication number: 20110117485
    Abstract: The present invention relates to a toner composition for forming a masking pattern for use e.g. in connection with a method of building up a three-dimensional body from a large number of mutually connected layers of powder particles that are bonded to each other using radiant heat. The toner composition consists of powder particles that arc able to withstand a temperature of at least 200° C. without sticking together. It also relates to a developer that comprises the toner composition and carrier particles and a method in connection with the production of a volume body by using a toner composition or a developer according to the invention.
    Type: Application
    Filed: August 27, 2008
    Publication date: May 19, 2011
    Applicant: SINTERMASK GMBH
    Inventors: David Hermann, Ralf Larson
  • Publication number: 20110104607
    Abstract: A chemical toner composition that includes at least one curable amorphous resin and at least one sublimation colorant.
    Type: Application
    Filed: November 3, 2009
    Publication date: May 5, 2011
    Applicant: Xerox Corporation
    Inventors: Yulin WANG, Ke ZHOU, Edward G. ZWARTZ, T. Hwee NG
  • Publication number: 20110065039
    Abstract: A toner excellent in low temperature fixability and blocking resistance, and a toner binder are provided. The present invention is a toner binder containing a crystalline resin (A) having a maximum peak temperature of heat of fusion (Ta) of 40 to 100° C., a ratio between the softening point and Ta (softening point/Ta) ranging from 0.8 to 1.55, and a melting start temperature (X) within a temperature range of (Ta±30)° C., and satisfying the following requirements; and a toner containing the toner binder and a coloring agent: [Requirement 1] G?(Ta+20)=50 to 1×106 [Pa] [Requirement 2] |log G?(X+20)?log G?(X)|>2.0 [G?: storage elastic modulus [Pa], G?: loss elastic modulus [Pa]].
    Type: Application
    Filed: March 27, 2009
    Publication date: March 17, 2011
    Applicant: SANYO CHEMICAL INDUSTRIES, LTD.
    Inventors: Koji Ota, Shogo Ejiri
  • Publication number: 20110027713
    Abstract: The disclosure provides an electrophotographic toner including a binder resin; and a light absorber, wherein the light absorber includes a metal nanorod and a surfactant covering a surface of the metal nanorod.
    Type: Application
    Filed: July 19, 2010
    Publication date: February 3, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Moon-il JUNG, Seung-Jin Oh, Eun-ha Lee
  • Publication number: 20110017834
    Abstract: A method for producing an antenna structure for an RFID device, a dry toner for use in producing an antenna for an RFID device and a RFID device comprising an antenna structure made of fused toner are disclosed. In a method for producing an antenna structure for an RFID device, a dry toner comprising a polymeric binder and metallic particles is provided. The toner comprises particles having a resistance allowing triboelectric charging or a resistance allowing inductive charging, wherein said metallic particles are nanoparticles having a mean particle size below approximately 500 nm in at least one direction. In the method, a continuous layer of the dry toner is applied to a substrate in a desired shape of an antenna via an electrophotographic printing process, and subsequently the toner is fused to the substrate by heating the toner above its glass transformation temperature.
    Type: Application
    Filed: December 22, 2007
    Publication date: January 27, 2011
    Inventors: Detlef Schulze-Hagenest, Dinesh Tyagi
  • Patent number: 7794909
    Abstract: An object of the present invention is to provide a spherical toner that has a sharp particle size distribution and a small particle diameter. This is a capsule-type toner that exhibits an excellent low-temperature fixability, while at the same time having a high offset resistance and excellent charging properties and having the ability to provide a high-quality image in which the characters, lines, and dots are precisely defined. The object is achieved by a toner comprising a toner particle that comprises at least (a) resin having polyester as the main component, colorant, wax, and (b) urethane resin, wherein the hydroxyl value per specific surface area of the toner particle is fall into the specific range, and wherein a Tg(0.5) and a Tg(4.0)-Tg(0.5) of the toner fall into specific range.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: September 14, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takaaki Kaya, Shigeto Tamura, Ryoichi Fujita, Ayako Sekikawa, Makoto Kambayashi