| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 430113000 | Multiple phase liquid carrier medium, i.e., emulsion | 19 |
| 20080220362 | TONER COMPOSITIONS HAVING IMPROVED FUSING PROPERTIES - Image recording device comprising a development system including toner particles comprising a gel latex, a high Tg latex, a wax, and a colorant, and a fuser member, such as a fluoropolymer coated fuser member, which produces images having improved document offset, vinyl offset and half-tone rub properties. | 09-11-2008 |
| 20080299480 | Liquid Developer Process for Producing Liquid Developer, and Image Forming Apparatus - A liquid developer includes toner particles containing mainly a resin material, and a nonvolatile insulating liquid, the toner particles containing therein a liquid constituting the insulating liquid. | 12-04-2008 |
| 20080299481 | Liquid Developer and Image Forming Apparatus - A liquid developer includes: toner particles containing mainly a resin material, and a nonvolatile insulating liquid, the toner particles containing a liquid having a formulation that is different from the insulating liquid, and the liquid contained in the toner particles having an aniline point that is lower than that of the insulating liquid. | 12-04-2008 |
| 20080299482 | METHOD OF MANUFACTURING AQUEOUS DISPERSION OF RESIN FINE PARTICLES, AQUEOUS DISPERSION OF RESIN FINE PARTICLES, METHOD OF MANUFACTURING TONER, AND TONER - A method of manufacturing an aqueous dispersion of resin fine particles, including: a mixing step of mixing an aqueous medium, a resin having an acid group, a basic substance, and a surfactant to obtain a mixture; an emulsification step of applying a shearing force to the mixture while heating at temperature 10.0° C. or more higher than a softening temperature (Tm) of the resin having the acid group to obtain an emulsified product; and a cooling step of obtaining an aqueous dispersion of resin fine particles by cooling the emulsified product, in which, in the cooling step, cooling is carried out at a cooling rate of 0.5° C./min or more to 10.0° C./min or less to a glass transition temperature (Tg) of the resin having the acid group or lower while a shearing force is applied. | 12-04-2008 |
| 20080311504 | METHOD OF MANUFACTURING TONER AND TONER - A method of manufacturing toner including adding an oil phase comprising an organic solvent in which a binder resin, a coloring agent and a releasing agent are dissolved or dispersed and an aqueous phase to an emulsification device equipped with a stirrer, continuously dispersing or emulsifying the oil phase and the aqueous phase in the emulsification device equipped with a stirrer to form a liquid dispersion or emulsion comprising oil phase particles, transporting the liquid dispersion or emulsion to a tank, removing the organic solvent from the liquid dispersion or emulsion followed by drying to form mother toner particles, wherein the releasing agent has been preliminarily prepared to have a dispersion diameter of from 0.15 to 0.7 μm before the releasing agent is contained in the oil phase, a circumferential speed of the stirrer is from 15 to 25 m/s, and a volume particle diameter (DV′) of the oil phase particles at an exit of the emulsification device to the tank and a volume average particle diameter (Dv) of the oil phase particles in the tank satisfy the following relationships: | 12-18-2008 |
| 20090004593 | Method of Producing Liquid Developer and Liquid Developer Produced by the Method - A liquid developer which includes toner particles having small particle size distribution, uniform shape, and excellent fixing properties to a recording medium is provided, a liquid developer which includes toner particles having small particle size distribution and uniform shape and being capable of exhibiting a property of each of materials constituting the toner particles sufficiently is also provided, and a liquid developer having excellent anti-offset properties (mold release properties) is also provided, and further a method of producing a liquid developer capable of producing such a liquid developer efficiently is also provided. In particular, a producing method capable of producing such a liquid developer as described above in a method harmless to the environment is provided. The liquid developer producing method of the present invention includes the steps of: preparing a water-based dispersion liquid comprising a dispersoid composed of a material containing a resin material and a water-based dispersion medium constituted from a water-based liquid in which the dispersoid is dispersed; removing the water-based dispersion medium by spraying the water-based dispersion liquid in the form of droplets to obtain toner particles, each of the toner particles being formed by aggregation of a plurality of particles of the dispersoid contained in each droplet of the water-based dispersion liquid; and dispersing the toner particles into the insulation liquid directly. | 01-01-2009 |
| 20090061345 | TONER - A toner including a binder resin, a colorant, and a release agent is provided. The difference in absorbance ratio between the toner heated for 1 minute in an atmosphere of 100° C. and the toner stored in an atmosphere of 23° C. is from 0.1 to 0.2. The absorbance ratio is a ratio of an absorbance specific to the release agent (such as at 2850 cm | 03-05-2009 |
| 20090130588 | ACID-BASE PROPERTY CONSIDERATIONS FOR IMPROVED ADDITIVE ATTACHEMENT ON TONER - A developer comprised of a toner and at least one external surface additive, wherein an acid-base interaction has an Interaction Surface Parameter (I | 05-21-2009 |
| 20090142689 | POLYESTER-WAX BASED EMULSION AGGREGATION TONER COMPOSITIONS - Emulsion aggregation toners comprising a polyester-wax resin, wherein the polyester-wax resin includes a wax that is chemically incorporated into the main chain of the polyester resin. | 06-04-2009 |
| 20090214975 | TONER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE AND METHOD OF PREPARING THE TONER, AND IMAGE FORMING METHOD USING THE TONER - A toner prepared by a method including dissolving or dispersing at least at least one member selected from the group consisting of binder resins and precursors thereof, a colorant, a release agent, and a layered inorganic mineral in which ions between its layers are at least partially modified with an organic ion in an organic solvent to prepare a solution or a dispersion which is an oil phase; and dispersing the oil phase in an aqueous medium to prepare an emulsified dispersion in which parent toner particles are granulated, wherein the aqueous medium includes a tertiary amine compound. | 08-27-2009 |
| 20090297977 | Resin particle liquid dispersion for electrostatic image developing toner, electrostatic image developing toner, production method thereof, developer and image forming method - A resin particle liquid dispersion for an electrostatic image developing toner, comprising: an aqueous medium; and a resin particle dispersed in the aqueous medium to have a median diameter of 0.05 to 2.0 μm, the resin particle comprising a polycondensable polymer obtained by polycondensing polycondensable monomers, wherein a storage modulus GL( | 12-03-2009 |
| 20100021840 | DECOLORIZABLE EMULSION COLORING MATERIAL AND METHOD OF PRODUCING THE SAME - There is provided an emulsion coloring material which can be used on ordinary paper, has good color developability, and can be used for conventional erasable pens or printing inks of black or blue color, having sufficiently high densities. When use is made of an erasable emulsion coloring material capable of controlling color development and decolorization by the presence or absence of the interaction between a chromatic material and a color developer, the colored emulsion comprising a copolymer resin of at least one unit selected from styrene and styrene derivatives and at least one unit selected from an acrylic acid ester and a methacrylic acid ester having a substituent which comprises a carbon chain having 4 or more carbon atoms, coloring ability can be enhanced. | 01-28-2010 |
| 20100209841 | TONER, TONER PRODUCTION METHOD, AND IMAGE FORMING METHOD - The present invention provides a method for producing a toner including preparing an emulsified dispersion which contains emulsion particles by emulsifying or dispersing an oil phase containing at least a pigment and any one of a binder resin and a binder resin precursor in an aqueous medium, and granulating toner base particles by converging the emulsified dispersion, wherein the Casson yield value of the single oil phase before being emulsified or dispersed in the aqueous medium is 0.5 Pa to 20 Pa; and the temperature Tn of the emulsified dispersion in the preparation of the emulsified dispersion, the temperature Ts of the emulsified dispersion in the granulation of the toner base particles, and the glass transition temperature Tg of the toner base particles satisfy the relation Tn| 08-19-2010 | |
| 20100323291 | METHOD FOR PRODUCING LIQUID DEVELOPER - The present invention provides a method for producing a liquid developer for electrophotography or electrostatic recording obtained by a coacervation method, which sufficiently maintains the charging property and has good dispersion stability of colored resin particles, as well as a liquid developer obtained by the method. | 12-23-2010 |
| 20110033796 | METHOD OF PREPARING TONER AND TONER PREPARED THEREBY - A method of preparing a toner, including dissolving toner constituents including a binder resin or a binder resin precursor, a colorant and a release agent in an organic solvent to prepare a first liquid; emulsifying the first liquid in an aqueous medium to prepare a second liquid having a viscosity of from 50 to 800 mPa·sec; and at least flowing the second liquid almost vertically down along the wall surface of a pipe in which the air pressure is depressurized to 70 kPa or less twice while keeping a temperature of the second liquid not higher than a Tg of the parent particle through the wall surface thereof to volatilize the organic solvent, wherein a solid content of a slurry after volatilized is from 15 to 50%, and a ratio of the solid content to a solid content of a slurry before volatilized is from 1.05 to 2.00. | 02-10-2011 |
| 20120171606 | BIMODAL STYRENE VINYL POLYMER LATEX FOR CHEMICALLY PRODUCED TONER - A process is provided for preparing a bimodal styrene vinyl polymer latex composition, which may be used to prepare toner for use in electrophotographic applications by the emulsion aggregation process. The process includes preparing a low molecular weight styrene polymer (LMWP) by solution polymerization, preparing a solution of the LMWP in a mixture of styrene and vinyl monomers, emulsifying the LMWP/monomer solution in water, and polymerizing the LMWP and mixture of styrene and vinyl monomers via emulsion polymerization to yield a bimodal molecular weight composition. The latex affords excellent fixing when used in chemically produced toners such as toners produced by emulsion aggregation. | 07-05-2012 |
| 20140072911 | TONER AND METHOD FOR PRODUCING TONER - 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. | 03-13-2014 |
| 20140093820 | TONER FOR DEVELOPING LATENT ELECTROSTATIC IMAGE AND METHOD FOR PRODUCING TONER FOR DEVELOPING A LATENT ELECTROSTATIC IMAGE - To provide a toner containing toner base particles, in each of which a colorant and a releasing agent are encapsulated with a binder resin, where the toner base particles are obtained by the method containing: mixing and emulsifying a mixture containing the binder resin, the colorant, the releasing agent, and an organic solvent in an aqueous medium in the presence of resin particles, wherein the aqueous medium contains a surfactant and an inorganic salt. | 04-03-2014 |
| 20140302436 | CONTINUOUS WAX DISPERSION PRODUCTION PROCESSES - Processes for continuously producing a wax dispersion are disclosed. A multi-screw extruder is used for the processes. A wax and a surfactant are fed into the extruder and melted together. Water is then added to form a dispersion. The wax particles are homogenized and exit the extruder to be passed through a quenching unit. The wax dispersion can be used to make toner compositions. | 10-09-2014 |
