Dry Toner With Chemically Identified Adjuvant (e.g., Charge Control Agent, Colorant, Etc.) Patents (Class 430/108.1)
  • Patent number: 9904196
    Abstract: A white toner for developing an electrostatic charge image includes a white toner particle containing a binder resin and a white pigment particle, wherein, when a number average circle equivalent diameter of the white pigment particles, which are observed in a sectional image of the white toner particle, is taken as A, and a number average circle equivalent diameter of the white pigment particles, which are present in a surface layer portion within 35% from a surface of the white toner particle with respect to a particle diameter thereof, is taken as B, a relationship expressed by A>B is satisfied.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: February 27, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Kana Yoshida, Atsushi Sugawara, Tsuyoshi Murakami, Masaki Iwase
  • Patent number: 9882133
    Abstract: Embodiments of the disclosure provide an electronic package device and a fabrication method thereof, and a method for testing the electronic package device. The electronic package device comprises a base substrate and a package substrate that are provided opposite to each other, and a sealant provided therebetween. The electronic package device further comprises an electronic function layer provided on a side of the base substrate facing the package substrate, and a laminated film layer and a test lead provided on a side of the package substrate facing the base substrate. The laminated film layer comprises a hygroscopic film adjacent to the package substrate and a piezoelectric film coating surfaces of the hygroscopic film. The piezoelectric film contacts one end of the test lead, and the other end of the test lead passes through the sealant and extends to an exterior of the electronic package device.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: January 30, 2018
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Dan Wang
  • Patent number: 9857709
    Abstract: To provide a toner, containing: a binder resin; a colorant; a releasing agent; and a crystalline polyester resin, wherein the toner satisfies the following formulae (1) to (3): 40° C.?X?55° C. Formula (1) 85° C.?Y?92° C. Formula (2) 35° C.?Y?X?50° C. Formula (3) where X is an onset temperature and Y is an endset temperature of an endothermic peak on a differential scanning calorimetry (DSC) curve of the toner as measured by a differential scanning calorimeter (DSC).
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: January 2, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Naohiro Watanabe, Tsuyoshi Sugimoto, Mamoru Hozumi, Tomoyuki Sato, Shinya Hanatani
  • Patent number: 9717798
    Abstract: A composition is disclosed. The composition comprises at least one polymeric colorant having a polymer component with a colorant component covalently bound thereto, a medicament, and a liquid vehicle. The at least one colorant component does not react directly or indirectly with the medicament. Methods of using the polymeric colorants, including a method for the preparation of skin as a site for a surgical procedure and a method of treating a medical condition, are also provided.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: August 1, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Louis C. Haddad, Douglas A. Hanggi, David B. Olson, Matthew T. Scholz, Dong-Wei Zhu
  • Patent number: 9703223
    Abstract: The present invention provides a toner that includes a charge control agent containing one or two or more resorcin derivatives represented by the following formula (1), a colorant, and a binder resin.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: July 11, 2017
    Assignee: HODOGAYA CHEMICAL CO., LTD.
    Inventors: Masaki Okubo, Motonori Tsuji, Masami Ito, Masaya Tojo, Masafumi Asakai, Tetsuya Yoshida
  • Patent number: 9699192
    Abstract: A method for managing a data item includes a hub receiving a first access request from a first engine executing on a computing device operated by a first host and sending the first access request to a second engine executing on a first computing device of a second host. The second host owns the data item. The hub receives, from the second engine, the data item and an access rule set by the second host for the first host, and sends the first access rule and the data item to the first engine for storage. The first engine grants the first host access to the data item according to the first access rule.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: July 4, 2017
    Assignee: Gramboo Inc.
    Inventors: Nitish John, Harriet H. John, Yu Yin Doo Kin
  • Patent number: 9671710
    Abstract: The present disclosure relates to a chemically prepared toner composition including a toner particle having a core including a first polymer binder, an styrene acrylic encapsulated crystalline polyester latex, a pigment, a wax, and a shell formed around the core including a second polymer binder and method to make the same. The disclosed method of preparing the toner results in a change in the distribution of the components of the toner particle wherein the lower molecular weight resins, the pigment, and the wax are located away from the surface of the toner particle.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: June 6, 2017
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Jing X Sun, Cory Nathan Hammond
  • Patent number: 9625848
    Abstract: A toner, wherein the toner is obtained by washing a toner particle dispersion liquid which is obtained by adding cellulase to a dispersion slurry, and the dispersion slurry is obtained from a dispersion liquid or an emulsion of a toner material-containing oil phase in an aqueous medium, and wherein the dispersion liquid or the emulsion contains a cellulosic dispersion stabilizing agent.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: April 18, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Yousuke Suzuki, Sayaka Yuasa, Sayuri Kojima, Takahiro Kadota, Yasuaki Iwamoto
  • Patent number: 9606466
    Abstract: The present invention is a toner including a toner particle containing a binder resin and a charge control agent, wherein the binder resin includes a resin having a polyester unit with at least one aliphatic compound condensed to the terminal thereof, the at least one aliphatic compound being selected from the group consisting of aliphatic monocarboxylic acids each having 30 or more and 102 or less carbon atoms and aliphatic monoalcohols each having 30 or more and 102 or less carbon atoms; and the charge control agent includes a specific compound (a pyrazolone monoazo metal compound).
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: March 28, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Toru Takahashi, Yoshihiro Ogawa, Daisuke Tsujimoto, Wakashi Iida
  • Patent number: 9574036
    Abstract: Ionomer composite resins and core/shell nanoparticles are described. The ionomer resin contains a metal ion. The metal can be in the core, shell or both.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: February 21, 2017
    Assignee: Xerox Corporation
    Inventors: Valerie M Farrugia, Wendy Chi, Sandra J Gardner
  • Patent number: 9551947
    Abstract: A magnetic toner is provided that exhibits an excellent dot reproducibility and developing performance after being allowed to stand in a high temperature and high humidity environment and an excellent low-temperature fixability. The magnetic toner has an inorganic fine powder and a magnetic toner particle containing a binder resin, a magnetic body, and a release agent, wherein in a stress relaxation measurement using a rotating plate rheometer, the magnetic toner exhibits a yield value A at 25° C. of at least 3×106 (sec), and the magnetic toner that has been heated to 80° C. and then cooled to 25° C. exhibits a yield value B at 25° C. of not more than 1×105 (sec).
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: January 24, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shuichi Hiroko, Yoshihiro Nakagawa, Tomohisa Sano
  • Patent number: 9546286
    Abstract: Disclosed herein are resistive composites comprising at least one resin; at least one carbon black having a surface hydrophobically modified with at least one organic group, the at least one organic group having a molecular weight of the composite of 4000 or less and comprising the formula —X(G)-, wherein X is directly attached to the at least one carbon black and is selected from arylene, heteroarylene, and alkylene, G is a substituent of X, and —X(G)- is nonionic; and wherein the resistive composite has a volume resistivity, Rv, at a relative volume fraction, XCB, of the at least one carbon black in the coating, where Rv is at least 106 ohm-cm; and log Rv has a substantially linear relationship with XCB when XCB is varied from 0.1 to 0.5. Also disclosed are coatings made from such composites, such as coatings for rollers/belts for office automation machines, and methods of making such coatings.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: January 17, 2017
    Assignee: Cabot Corporation
    Inventors: Eugene N. Step, Andriy Korchev, Agathagelos Kyrlidis, Clovis D. Haynes, Gregory R. Schulz, John R. Szwec
  • Patent number: 9534118
    Abstract: Dye mixtures based on dye(s) of formula (1) and dye(s) of formula (2) formula (3) formula (4) formula (5a) and/or formula (5b)
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: January 3, 2017
    Assignee: DyStar Colours Distribution GmbH
    Inventors: Fanny Vermandel, Adrian Murgatroyd, Clemens Grund, Manfred Hoppe, Ulrich Weingarten
  • Patent number: 9518156
    Abstract: A method includes heating a sulfonated polyester resin in an organic-free solvent, adding a solution of silver (I) ion to the heated resin in water to form a mixture, reducing silver (I) to silver (0) by heating the mixture from about 65° C. to about 90° C., thereby forming an emulsion of composite particles comprising a sulfonated polyester matrix and a plurality of silver nanoparticles disposed within the sulfonated polyester matrix, and allowing the silver nanoparticles to agglomerate into a silver nanodendrite structure.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: December 13, 2016
    Assignee: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Alana Desouza, Sandra J. Gardner
  • Patent number: 9513593
    Abstract: An image forming apparatus includes an image holding member; a charging unit; an electrostatic charge image forming unit; a developing unit that accommodates an electrostatic charge image developer that contains toner particles having a shape factor SF1 of 120 to 145 and hydrophobic inorganic oxide particles having a number average particle diameter of 30 nm to 80 nm and satisfies the Formula (1), and develops the electrostatic charge image formed on the surface of the image holding member to form a toner image, by the electrostatic charge image developer; a transfer unit; and a cleaning unit that includes a cleaning blade which contacts with the surface of the image holding member at contact pressure of 9.8 mN/mm to 21.6 mN/mm, and removes toner remaining on the surface of the image holding member after transferring the toner image by the cleaning blade: Q?160?12R??(1).
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: December 6, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Nagahito Ichijo
  • Patent number: 9500970
    Abstract: Provided is a toner that has excellent low-temperature fixability and is capable of obtaining an image having a stable image density, in which the occurrence of image defects is suppressed. The toner includes toner base particles, each of which contains a binder resin and a magnetic material, and organic-inorganic composite fine particles on each of the toner base particles. Each of the organic-inorganic composite fine particles comprises a vinyl resin particle, and inorganic fine particles which are embedded in the vinyl resin particle, and at least a part of which are exposed. The volumetric specific heat of the organic-inorganic composite fine particles and the volumetric specific heat of the toner base particles satisfy a predetermined provision.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: November 22, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shotaro Nomura, Masami Fujimoto, Katsuhisa Yamazaki, Kouji Nishikawa, Daisuke Yoshiba, Hiroki Akiyama
  • Patent number: 9501015
    Abstract: An image forming apparatus includes an image forming unit, a heating unit, and a fixing unit. The image forming unit uses a toner including a flat pigment. The heating unit heats a recording medium. The fixing unit allows the recording medium to pass therethrough so as to cause an image formed on the recording medium to be fixed onto the recording medium by heat. In the image forming apparatus, the heating unit heats the recording medium on which the image has not been formed, the image forming unit forms the image on the recording medium having been heated, and the fixing unit fixes the image having been formed onto the recording medium.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: November 22, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Aya Kakishima, Miho Ikeda, Koichiro Yuasa, Yasumitsu Harashima, Toko Hara, Yoshihiro Hayashi
  • Patent number: 9500969
    Abstract: Disclosed here is a method for producing a decolorizable electrophotographic toner, comprising mixing a first dispersion liquid in which a colorant is dispersed in an amount such that the content of the colorant in the toner is from 5% to 35% by weight, with a second dispersion liquid in which particles containing at least a binder resin and having a volume average particle diameter of 500 nm or less are dispersed, aggregating the colorant and the particles containing at least the binder resin, thereby obtaining aggregated particles, fusing the aggregated particles at a temperature lower than a completely decolorizing temperature of the colorant to obtain the toner, and measuring the number ratio of particles having an equivalent circle diameter of 0.6 ?m or more and 2.5 ?m or less of the toner using a flow particle image analyzer after the toner is subjected to a stirring treatment.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: November 22, 2016
    Assignees: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha Pilot Corporation, The Pilot Ink Co., Ltd.
    Inventors: Masahiro Ikuta, Takahito Kabai, Takayasu Aoki, Tsuyoshi Itou
  • Patent number: 9494885
    Abstract: A method for producing a developing agent including preparing a dispersion liquid containing first fine particles containing a binder resin and second fine particles containing a color developable compound, a color coupler, and a color eraser, and aggregating the first and second fine particles in the dispersion liquid to form aggregated particles.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: November 15, 2016
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Takahito Kabai, Tsuyoshi Itou
  • Patent number: 9383669
    Abstract: Provided is a brilliant toner containing a brilliant metallic pigment of which the surface is covered with at least one kind of metal oxides selected from a group consisting of silica, alumina, and titania, wherein the brilliant toner has a dielectric loss factor of from 10×10?3 to 60×10?3.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: July 5, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Masaru Takahashi, Sakiko Hirai, Shotaro Takahashi, Atsushi Sugitate, Shuji Sato
  • Patent number: 9366980
    Abstract: A process for making colored polyester latex by phase inversion emulsification is described.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: June 14, 2016
    Assignee: Xerox Corporation
    Inventors: Shigeng Li, Peter V Nguyen, Judith M Vandewinckel, Amy A Grillo, Chieh-Min Cheng
  • Patent number: 9359512
    Abstract: A siloxane-containing ink composition for variable data lithographic printing includes a nano-particle polymer or blend of nano-particle polymers, wherein the polymer or polymers of the blend are water dispersible at temperatures below 100 degrees Celsius; and solids content is in an amount of greater than 25 percent by total weight.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: June 7, 2016
    Assignee: XEROX CORPORATION
    Inventors: Carolyn Moorlag, Marcel Breton, Guerino Sacripante, Ke Zhou
  • Patent number: 9354531
    Abstract: A process for making a latex emulsion where distillation occurs at an elevated temperature is used to make resin particles with a conditioned surface which can be used to make magenta toner with increased efficiency.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: May 31, 2016
    Assignee: XEROX CORPORATION
    Inventors: Shigeng Li, Christopher M Wolfe, Randy P Tin, Eric Godshall, Shigang Qiu, Peter V Nguyen, Jay L Schneider, Linda S Schriever, Steven M Malachowski, Amy A Grillo, Chieh-Min Cheng
  • Patent number: 9329512
    Abstract: Bio-based toner compositions that exhibit excellent performance and provide high print quality. More specifically, the present bio-based toner compositions comprise greater than 20% bio-resins but avoid the moisture sensitivity issues that bio-resins are prone to by also including one or more oil additives.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: May 3, 2016
    Assignee: XEROX CORPORATION
    Inventors: Varun Sambhy, Juan A. Morales-Tirado, Santokh S. Badesha, Susan J. LaFica
  • Patent number: 9316960
    Abstract: A fixing device includes: a non-contact heating portion that includes at least one non-contact heating unit which heats a toner image on a sheet; and a pressurizing and heating unit that is provided downstream in a sheet transport direction with respect to the non-contact heating portion and that pressurizes and heats the toner image. A time from a first point of time when the toner image reaches a toner melting temperature by heating of the non-contact heating portion to a second point of time when the toner image enters the pressurizing and heating unit is set equal to or more than a predetermined time. The predetermined time is a time when a ratio between the weight of the toner in the toner image before the entrance and the sum of the weight of the toner and the weight of the carrier liquid is equal to or more than 70%.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: April 19, 2016
    Assignee: KONICA MINOLTA, INC.
    Inventors: Yuji Kamoda, Junya Hirayama, Shigeo Uetake, Tomohiko Masuda
  • Patent number: 9291931
    Abstract: Provided is an electrostatic charge image developing toner, including: toner base particles including a polyester resin as a binder resin; and an external additive on the surface of the toner base particles. The external additive includes silica. The silica is produced by sol-gel method, and is aspherical. The percentage of change in the specific surface area of the toner when it is stored under high-temperature, high-humidity conditions is from 25% to 45%.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: March 22, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Junichi Awamura, Tsuneyasu Nagatomo, Satoshi Kojima, Shingo Sakashita, Tomoki Murayama, Masaya Fukuda
  • Patent number: 9261808
    Abstract: Fluorescing highlights can be provided in selected portions of non-color image areas of a printed toner image using fluorescing dry toner particles, such as fluorescing magenta and fluorescing yellow dry toner particles. Before fixing, each fluorescing dry toner particle comprises a polymeric binder phase and a fluorescing colorant that emits at one or more ?max wavelengths of at least 420 nm and up to and including 690 nm and that is dispersed within the polymeric binder phase.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 16, 2016
    Assignee: EASTMAN KODAK COMPANY
    Inventors: Dinesh Tyagi, Louise Granica
  • Patent number: 9261814
    Abstract: A developing roller that is capable of carrying toner on a surface thereof, and that supplies the toner carried on the surface to a surface of a photosensitive drum when a voltage is applied thereto, includes: an elastic layer; and a surface layer that covers the elastic layer and contains aluminum oxide, wherein the aluminum oxide of the surface layer contains tetracoordinated aluminum atoms and hexacoordinated aluminum atoms existing in a higher proportion than the tetracoordinated aluminum atoms.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: February 16, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kazunari Hagiwara, Tatsuaki Orihara, Shuhei Tokiwa, Yasuyuki Matsumoto, Manami Haraguchi, Atsushi Nakamoto, Yasuhiro Horiguchi
  • Patent number: 9235152
    Abstract: There is provided a toner, including toner mother particles which contain a binder resin, a colorant, and a wax, wherein a difference between a density of the wax in a solid state and a density of the wax in a liquid state is not less than 0.11 g/cm3; the density of the wax in the liquid state is not more than 0.835 g/cm3; and a heat quantity of the wax per unit mass which is obtained from an endothermic peak area at a low temperature side measured by a differential scanning calorimetry is not less than 190 mJ/mg.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 12, 2016
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kumiko Suzuki, Jun Ikami
  • Patent number: 9213252
    Abstract: A transparent developer has a glass transition point of 63.0° C. to 66.0° C., both inclusive, and a melt temperature, indicative of a softening point by a 1/2 method, of 94.3° C. to 97.0° C., both inclusive.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: December 15, 2015
    Assignee: Oki Data Corporation
    Inventor: Manami Hiraide
  • Patent number: 9182693
    Abstract: A toner to develop an electrostatic charge image, the toner including at least a binder resin, a colorant, and a releasing agent, wherein a weight average molecular weight of the toner measured by using a gel permeation chromatography (GPC) method on a tetrahydrofuran (THF) soluble fraction is in a range of about 30,000 to about 80,000 g/mol, wherein a molecular weight distribution curve of the toner obtained by using the GPC method on the THF soluble fraction has at least one peak in a molecular weight range of 100 to 1,000 g/mol, a peak in a molecular weight range of 1,000 to 5,000 g/mol, and a main peak in a molecular weight range of 5,000 to 20,000 g/mol, a method of preparing the toner, a device to supply the toner, and an apparatus and method of forming an image by using the toner. The toner has more than certain levels of low-temperature fixability, an anti-hot-offset property, a charging ability, a gloss property, and a heat storage ability.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: November 10, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Takeshi Yoshida, Sung-jin Park, Yo-da Shin, Hwoing-woon Lee, Jin-mo Hong
  • Patent number: 9081315
    Abstract: A toner composition including at least one phosphorescent pigment that absorbs energy released by natural or artificial light, and is able to be seen in a dark environment through luminescence of a certain color created by the energy released as light, and a method of forming and using the toner are described. The phosphorescent toner has a particle size in the range of about 15-40 microns, which allows the toner to have the ability to absorb and then release the needed amount of light energy to be noticeable in a dark environment.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: July 14, 2015
    Assignee: TROY GROUP, INC.
    Inventors: Carrie A. Gilson, Kevin L. Heilman, Michael R. Riley
  • Patent number: 9075329
    Abstract: A method of making toner particles that includes forming a pre-shell aggregate mixture by adding to a reactor pre-shell aggregate ingredients, the includes a latex resin, the reactor having a mixing impeller and a heating jacket; performing pre-shell aggregation while homogenizing the pre-shell aggregate mixture with the impeller at an initial tip speed to form pre-shell aggregates; decreasing the tip speed to a second tip speed when the pre-shell aggregates reach a target intermediate average particle diameter; and then decreasing the tip speed at one or more intervals between when the pre-shell aggregates reach the target intermediate average particle diameter and when the pre-shell aggregates reach a target final average particle diameter so that the tip speed meets the following formula: tip speed=1644ft/min?204.9(ft/(min*?m))*average particle diameter(?m).
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 7, 2015
    Assignee: XEROX CORPORATION
    Inventors: Juan A. Morales-Tirado, Mark A. Jackson
  • Publication number: 20150132693
    Abstract: An emulsion aggregation (EA) toner includes an amorphous polymeric resin, optionally a colorant, and a small molecule crystalline organic compound having molecular weight less than 1,000 g/mol and melting point less than the fusing temperature of the EA toner, wherein a mixture of the resin and the small molecule compound is characterized by a reduction in glass transition temperature from that of the resin and by the lack of a significant solid to liquid phase transition peak for the small molecule compound as determined by differential scanning calorimetry, the enthalpy of fusion for the small molecule compound in the mixture being measured to be less than 10% of the enthalpy of fusion of the compound in pure form. Furthermore, the EA toner may be configured to have a crease fix minimum fusing temperature (MFT) less than or equal to the crease fix MFT of a benchmark ultra-low-melt emulsion aggregation toner.
    Type: Application
    Filed: November 11, 2013
    Publication date: May 14, 2015
    Applicant: XEROX CORPORATION
    Inventors: JORDAN H. WOSNICK, Ke Zhou, Valerie M. Farrugia, Kentaro Morimitsu, Edward G. Zwartz
  • Publication number: 20150132691
    Abstract: A toner includes a polymeric resin, optionally a colorant, and a small molecule crystalline aromatic ether having a molecular weight less than 1,000 g/mol. The polymeric resin may be an amorphous resin and a mixture of the amorphous resin and the crystalline aromatic ether may be characterized by a reduction in glass transition temperature from that of the resin and by the lack of a melting point for the crystalline aromatic ether as determined by differential scanning calorimetry, the enthalpy of fusion for the crystalline aromatic ether in the mixture being measured to be less than 10% of the enthalpy of fusion of the crystalline aromatic ether in pure form. Furthermore, the toner may be configured to have a crease fix minimum fusing temperature (MFT) less than or equal to the crease fix MFT of a benchmark ultra-low-melt emulsion aggregation toner. Suitable crystalline aromatic ethers may include benzyl 2-naphthyl ether.
    Type: Application
    Filed: November 11, 2013
    Publication date: May 14, 2015
    Applicant: XEROX CORPORATION
    Inventors: KE ZHOU, Jordan H. Wosnick, Kentaro Morimitsu, Michael S. Hawkins, Edward G. Zwartz, Valerie M. Farrugia
  • Patent number: 9029431
    Abstract: Porous particles can be prepared using an evaporative limited coalescence process in which one or more discrete cavities are stabilized within the continuous polymeric solid phase of the porous particles. The one or more discrete cavities have inner walls and are dispersed within the continuous polymeric solid phase. The porous particles further comprise a cavity stabilizing hydrocolloid on the inner walls of the one or more discrete cavities, and an amphiphilic (low HLB) block copolymer that is disposed at the interface of the discrete cavities and the continuous polymeric solid phase.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: May 12, 2015
    Assignee: Eastman Kodak Company
    Inventors: Mridula Nair, Tamara K. Jones, Mark R. Mis
  • Patent number: 9029496
    Abstract: Provided is a liquid crystal polyester amide resin which has a good hue. Specific monomers are polymerized using a specific catalyst. The specific monomers are composed of: at least one kind of a monomer selected from among aromatic aminocarboxylic acids, aromatic hydroxyamines and aromatic diamines; and at least one kind of a monomer selected from among aromatic hydroxy carboxylic acids, aromatic dicarboxylic acids or aliphatic dicarboxylic acids, and aromatic diols or aliphatic diols. It is preferable that the content of the at least one kind of a monomer selected from among aromatic aminocarboxylic acids, aromatic hydroxyamines and aromatic diamines is from 0.1 mol % to 85 mol % (inclusive).
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: May 12, 2015
    Assignee: Polyplastics Co., Ltd.
    Inventors: Toshinori Kawahara, Yoshiaki Taguchi
  • Patent number: 9023570
    Abstract: A toner contains a binder resin, a colorant, and a releasing agent, wherein the toner contains toner particles, and wherein a proportion of the toner particles containing one or more voids having diameters D1 of larger than 0.0 ?m but 0.5 ?m or smaller is more than 5.0% to 60%, and a proportion of the toner particles containing one or more voids having diameters D2 of 1.0 ?m or larger is 10% or less.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: May 5, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Masana Shiba, Ryuta Chiba, Tsuneyasu Nagatomo
  • Patent number: 9023567
    Abstract: A toner particle has a core and a shell surrounding the core, wherein the shell contains a polymerized charge enhanced spacer particle, which is a copolymer of a charge control agent and a monomer. A method of making toner particles includes forming a slurry by mixing together a first emulsion containing a resin, optionally a wax, optionally a colorant, optionally a surfactant, optionally a coagulant, and one or more additional optional additive, heating the slurry to form aggregated particles in the slurry, forming a second emulsion containing a monomer and a charge control agent, polymerizing the second emulsion to form a copolymer of the monomer and the charge control agent, and incorporating the copolymer into the toner particles, wherein the aggregated particles form a core of the toner particles.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: May 5, 2015
    Assignee: Xerox Corporation
    Inventors: Robert D. Bayley, Maura A. Sweeney, Grazyna E. Kmiecik-Lawrynowicz
  • Patent number: 9023569
    Abstract: A chemically prepared toner composition according to one example embodiment includes a core including a first polymer binder, a colorant and a release agent; a shell that is formed around the core and includes a second polymer binder; and a borax coupling agent between the core and the shell.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: May 5, 2015
    Assignee: Lexmark International, Inc.
    Inventors: Jing X. Sun, Kofi Opare Diggs
  • Patent number: 9017916
    Abstract: A process for making a latex emulsion including contacting a resin dissolved in a solvent with an absorbent glass that binds the solvent to produce a latex emulsion.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: April 28, 2015
    Assignee: Xerox Corporation
    Inventors: Shigeng Li, Eugene F Young
  • Patent number: 9012113
    Abstract: White toner contains a binder resin, a white pigment, and a releasing agent, wherein the white pigment is coated with the releasing agent and dispersed in the binder resin.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: April 21, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazumi Suzuki, Tatsuya Morita, Yoshitaka Yamauchi, Masana Shiba, Azumi Miyaake
  • Patent number: 9012115
    Abstract: To provide a yellow toner having a colorant in a good dispersed state, obtained through excellent granulation performance and having stable developing performance, the yellow toner contains a binder resin, a wax and a colorant, and is characterized by containing as the colorant a compound represented by the following general formula (1) and a compound represented by the following general formula (2).
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: April 21, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Ujifusa, Taichi Shintou, Yutaka Tani, Masao Nakano, Kaoru Takahashi, Satoshi Saito, Takeshi Miyazaki, Masashi Hirose
  • Publication number: 20150104742
    Abstract: Toner compositions comprising toner particles are described, where the toner particles have an elastic modulus in the range of about 100 Pa to about 1050 Pa and/or have a viscous modulus in the range of about 100 Pa to about 1000 Pa.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 16, 2015
    Applicant: XEROX CORPORATION
    Inventors: Juan A. MORALES-TIRADO, David John William LAWTON, Vincenzo G. MARCELLO
  • Publication number: 20150104741
    Abstract: Toner additives for imparting certain properties to printed images. In particular, toner additives that provide desired tunable gloss levels. The present toner additives comprise polyolefins. The incorporation of such additives into toners, in particular, emulsion aggregation (EA) toners, have provided gloss control without any significant adverse impact on the minimum fix properties of the toner.
    Type: Application
    Filed: October 10, 2013
    Publication date: April 16, 2015
    Applicant: XEROX CORPORATION
    Inventors: VALERIE M. FARRUGIA, Kimberly D. Nosella, Jordan Wosnick, Michael J. D'Amato, Edward G. Zwartz
  • Patent number: 9005857
    Abstract: The present invention relates to a thermochromic color-memory toner containing: a microcapsule pigment encapsulating a thermochromic color-memory composition; and a binder resin, in which the microcapsule pigment shows a hysteresis characteristic that, in a temperature-rise process, decoloration starts when the temperature reaches t3 and the pigment completely reaches a decolored state in a temperature region of t4 or higher, and in a temperature-drop process, coloration starts when the temperature reaches t2 and the pigment completely reaches a colored state in a temperature region of ti or lower, and ti is in a range of from ?50 to 0° C. and t4 is in a range of from 50 to 150° C.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: April 14, 2015
    Assignee: The Pilot Ink Co., Ltd.
    Inventors: Katsuyuki Fujita, Yoshiaki Ono, Yutaka Shibahashi
  • Patent number: 9005869
    Abstract: A method for producing a developing agent including preparing a dispersion liquid containing first fine particles containing a binder resin and second fine particles containing a color developable compound, a color coupler, and a color eraser, and aggregating the first and second fine particles in the dispersion liquid to form aggregated particles.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: April 14, 2015
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Takahito Kabai, Tsuyoshi Itou
  • Patent number: 8999616
    Abstract: A plurality of flakes are provided that can be used in ink or paint wherein the flakes are of a size that requires magnification to see their shape, in the form of polygons, such as squares, triangle or rectangles. A breaking or grinding process is used to break a foil into these shaped flakes and frames or walls are provided within the foil sheet so as to delineate the shapes and these lines provided by frames or walls will facilitate breakage in a preferred manner such that the flakes break into selected shaped polygons. Remnants are typically present along flake edges due to the grinding and breakage process however with magnification, one can see the resultant regular polygonal shape. To clearly see the remnants one requires increased magnification and the remnant itself provides a type of signature. It can be seen as a taggent within a taggent.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: April 7, 2015
    Assignee: JDS Uniphase Corporation
    Inventors: Alberto Argoitia, Cornelis Jan Delst
  • Patent number: 8986917
    Abstract: A method of making a toner composition includes preparing raw toner particles, increasing a surface area of the raw toner particles by contacting the raw toner particles with a base to produce base-treated raw toner particles, and mixing the base-treated raw toner particles with at least one surface additive such that the at least one surface additive attaches to a surface of the base-treated raw toner particles to obtain blended toner particles. A toner composition includes blended toner particles containing base-treated raw toner particles, and at least one surface additive attached to a surface of the base-treated raw toner particles, wherein a ratio of a triboelectric charge of the blended toner composition to a triboelectric charge of the base-treated raw toner particles is from about 0.8 to about 1.2.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 24, 2015
    Assignee: Xerox Corporation
    Inventors: Juan A. Morales-Tirado, Blaise Luzolo
  • Publication number: 20150079504
    Abstract: Provided is a toner that has a plurality of toner particles. Each toner particle can include a binder resin core and a shell disposed about the binder resin core. The binder resin core can include at least one binder resin. The shell can include a plurality of metal nanoparticles. The binder resin core can be prepared by forming an aggregate of the binder resin in which metallic nanoparticles are not present.
    Type: Application
    Filed: September 17, 2013
    Publication date: March 19, 2015
    Applicant: XEROX CORPORATION
    Inventor: Valerie M. Farrugia