| Entries |
| Document | Title | Date |
|---|
| 20080206664 | METHOD FOR PRODUCING CORE MATERIAL OF ELECTROPHOTOGRAPHIC FERRITE CARRIER AND RESIN-COATED FERRITE CARRIER - The present invention provides a method for producing a core material of an electrophotographic ferrite carrier, by charging a raw powder with an average particle size of 20 to 50 μm obtained by preparing raw materials for ferrite into a combustion flame along with a carrier gas for the raw powder, thermal-spraying the powder in atmospheric air to ferritize the powder, subsequently rapidly solidifying the thermal-sprayed particle, and sampling and collecting the particle, wherein the method satisfies the conditions comprising the following (1) to (3): (1) a mixture gas of propane and oxygen is used for the combustion flame for the thermal spraying, and a volumetric ratio of the propane to the oxygen is 1:3.5 to 6.0; (2) the carrier gas for the raw powder is air, nitrogen, oxygen or a mixture gas thereof, and the ratio (a/b) of a charged amount (a) of a raw powder (kg/hr) to a charged amount (b) of the carrier gas (kg/hr)for the raw powder is 4.8 or less; and (3) a flame flow velocity of the combustion flame is 65 to 125 m/sec. | 08-28-2008 |
| 20080268367 | METHOD OF MAKING POROUS PARTICLES - The present invention is a method for the preparation of porous particles that includes dissolving a polymer material in a first organic solvent and adding a second organic solvent and nonionic organic polymer particles to form an organic phase. The organic phase is dispersed in an aqueous phase that includes a particulate stabilizer to form a dispersion and the dispersion is homogenized. The first and second organic solvents are evaporated and the product is recovered. | 10-30-2008 |
| 20080299485 | FLUOROCHEMICAL SULFONAMIDE SURFACTANTS - Described are fluorochemical surfactants derived from nonafluorobutanesulfonyl fluoride that contain polyalkyleneoxy side chains and may be copolymerized with acrylic acid or methacrylic acid to form polyacrylates or polymethacrylates. The surfactants surprisingly lower the surface tension of water and other liquids in the same or similar low values achieved by premier surfactants such as those derived from perfluorooctane sulfonyl fluoride. | 12-04-2008 |
| 20090142690 | METHOD OF MANUFACTURING TONER - A method of manufacturing a toner including forming a wax liquid dispersion in which a wax is dispersed in an organic solvent (A1), mixing an organic layer including the wax liquid dispersion, a binder resin and an organic solvent (A) to form an oil phase and dispersing and emulsifying the oil phase in an aqueous medium to obtain an emulsified liquid dispersion, wherein the aspect ratio average of the wax in the wax liquid dispersion is from 0.3 to 0.7 and the toner includes toner particles satisfying the following relationship (1) in an amount of 20% by number or smaller based on all toner particles: 0.5| 06-04-2009 | |
| 20090269692 | METHOD OF MANUFACTURING TONER - A method of manufacturing the toner comprising dispersing at least one of a binder resin or a precursor thereof, a coloring agent and a releasing agent in an organic solvent to obtain an oil phase,dispersing the oil phase in an aqueous medium with a shearing force to obtain a dispersion emulsion, wherein the dispersion emulsion process has plural stages and the shear speed A of the emulsification process of stage n is faster than the shear speed B of the emulsification process of stage n+1. | 10-29-2009 |
| 20100015547 | METHOD FOR PRODUCING ELECTROSTATIC IMAGE DEVELOPING TONER - Provided is a method for producing an electrostatic image developing toner comprising: agglutinating wax and resin particles in aqueous medium; manufacturing a toner composed of wax and resin for developing an electrostatic image, wherein the wax is inside colorants. The method solves the problems of existing toner for developing an electrostatic image, such as low dispersion and easy detachment of colorants, low image density, the contamination of carriers and developing sleeves and low durability. The toner of the invention has high roll viscosity resistance and durability, and the colorants will not detach. | 01-21-2010 |
| 20100035175 | METHOD FOR PRODUCING TONER - A method for producing a toner, comprising the step of feeding raw materials containing a resin binder and a colorant to an open-roller type kneader, and melt-kneading the raw materials, wherein the resin binder contains a crystalline polyester and an amorphous polyester, and wherein the crystalline polyester and the amorphous polyester fed to the open-roller type kneader are in a weight ratio, i.e. crystalline polyester/amorphous polyester, of from 5/95 to 30/70, and have a ratio of average particle sizes of crystalline polyester/amorphous polyester of from 1.5 to 4.0. The toner obtained according to the present invention is used in, for example, the development of a latent image formed in electrophotography, electrostatic recording method, electrostatic printing method or the like. | 02-11-2010 |
| 20100081078 | METHOD FOR PRODUCING TONER - The present invention is to provide a method for producing a toner capable of sufficiently decreasing the percentage of moisture content of a wet cake in the process of obtaining colored resin particles in wet state (wet cake), capable of reducing the workload in the following drying process, and thus excellent in productivity. A method for producing a toner comprising the steps of: a process of obtaining an aqueous dispersion of colored resin particles by forming colored resin particles by a wet method; a process of obtaining the colored resin particles in wet state (wet cake) by supplying the aqueous dispersion of the colored resin particles to a belt filter and performing solid-liquid separation; and a process of drying the wet cake, wherein a filter cloth continuous running type belt filter is used as the belt filter in the process of obtaining the wet cake, and the filter cloth continuous running type belt filter has a separation-washing mechanism, in which the aqueous dispersion of the colored resin particles is supplied on a lower filter cloth of the belt filter, the colored resin particles are separated followed by washing, and thus the wet cake is formed, and a pressure-ventilation mechanism, in which the wet cake is covered with an upper filter cloth, the wet cake, disposed between the upper and lower filter cloths, is ventilated while pressure is applied to the wet cake, and thus the wet cake having low percentage of moisture content is obtained. | 04-01-2010 |
| 20100159385 | METHOD OF PREPARING TONER HAVING CONTROLLED MORPHOLOGY - A method for the preparation of shaped polymeric particles, and in a particular embodiment shaped electrostatographic toner particles, of controlled morphology including the following steps. A selected solvent or solvent mixture is used to dissolve a polyester polymer material to form an organic phase, wherein the polyester material is formed from at least one diol and at least one multicarboxylic aromatic acid and has a solubility parameter of greater than 9.0 (cal/cm | 06-24-2010 |
| 20100279225 | METHOD OF FILTERING POROUS PARTICLES - The present invention is a method of manufacturing porous polymer particles comprising: forming a dispersion of porous polymer particles in an external aqueous phase, wherein individual porous particles each comprise a continuous polymer phase and internal pores containing an internal aqueous phase; and filtering the dispersion of porous polymer particles with a filter to remove the external aqueous phase, wherein the filtering is done while agitating the porous particles. | 11-04-2010 |
| 20100297548 | METHOD FOR PRODUCING TONER FOR DEVELOPING ELECTROSTATIC IMAGE AND APPARATUS FOR PRODUCING RESIN PARTICLES - A method for producing resin particles, including ejecting a liquid containing at least a resin in the form of droplets from a droplet ejecting unit having a plurality of holes provided in a part of a flow channel for feeding the liquid containing at least a resin, and drying and solidifying the ejected droplets so as to obtain the resin particles, while the ejected droplets are transported by a primary transport air flow flowing in the direction in which the droplets are ejected, wherein the ejected droplets are further transported by a secondary transport air flow which transports the ejected droplets in a different direction from a direction in which the primary transport air flow flows, and wherein a smaller angle of angles formed between a velocity vector of the primary transport air flow and a velocity vector of the secondary transport air flow is less than 120 degrees. | 11-25-2010 |
| 20110045402 | METHOD FOR PRODUCING TONER - A method for producing a toner including the steps of melt-kneading at least a resin binder and a colorant to give a kneaded product (step 1); and heat-treating the kneaded product obtained in the step 1 (step 2), wherein the resin binder contains a crystalline resin and an amorphous resin, wherein the crystalline resin contains a specified composite resin containing (a) a specified polycondensation resin component and (b) a styrenic resin component, in a specified weight ratio, wherein the composite resin is contained in the resin binder in a specified amount. The toner obtained by the above method is used in, for example, the development of a latent image formed in electrophotography, electrostatic recording method, electrostatic printing method or the like. | 02-24-2011 |
| 20110117488 | CARRIER AND TWO-COMPONENT DEVELOPER COMPOSED OF THE CARRIER - An objective is to provide a carrier exhibiting stable charge providing ability in which sufficient charge can be provided to toner having a small particle diameter, and no image contamination such as fog caused by toner scattering via lack of electrification is generated. Another objective is to provide a carrier capable of maintaining a charging level of no interference for image formation even under the image forming condition at which a charging level for printing a number of prints continuously is difficult to be maintained. Disclosed is a carrier comprising a core particle made of ferrite possessing Mg and coated thereon, a resin, wherein the core particle has a ratio of the number of irregular-shaped core particles of at most 5%, based on the total number of core particles, and a surface of the core particle has grains having a maximum grain diameter of 2-5 μm. | 05-19-2011 |
| 20110151374 | METHOD AND APPARATUS OF RAPID CONTINUOUS DROP FORMATION PROCESS TO PRODUCE CHEMICAL TONER AND NANO-COMPOSITE PARTICLES - A process for making particles is provided. In embodiments, a suitable process includes a mixing tank for mixing a plurality of droplets dispersed within a liquid media. The process further includes a drop ejector controlling unit in operable communication with a drop ejector array for launching a plurality of droplets, the plurality of droplets including the plurality of particles, and an outlet port for receiving the plurality of droplets. | 06-23-2011 |
| 20110151375 | METHOD AND APPARATUS OF RAPID CONTINUOUS PROCESS TO PRODUCE CHEMICAL TONER AND NANO-COMPOSITE PARTICLES - A process for making particles is provided. In embodiments, a suitable process includes a mixing tank for mixing a plurality of particles dispersed within a liquid media and a vane unit for applying a swirling effect to the plurality of droplets received from the mixing tank through a spray nozzle. The vane unit is in operable communication with a spray nozzle for launching a plurality of droplets, the plurality of droplets including different combinations of the plurality of particles. The process further includes a plurality of outlet ports, where each of a first set of outlet ports includes a filter and of the other outlet port is filterless. | 06-23-2011 |
| 20110223534 | HYDROPHOBILIZATION METHOD FOR PARTICLES - A hydrophobilization method is disclosed, comprising subjecting particles to a hydrophobilizing treatment in an aqueous medium with a hydrophobilizing agent to hydrophobilize surfaces of the particles, wherein the surfaces of the particles are hydrophobilized with the hydrophobilizing agent in the presence of a phase transfer catalyst. | 09-15-2011 |
| 20110281215 | PROCESSES FOR PRODUCING POLYESTER LATEXES VIA SOLVENT-BASED EMULSIFICATION - A process for making a latex emulsion suitable for use in a toner composition includes contacting at least one amorphous polyester resin with an organic solvent to form a resin mixture, adding a neutralizing agent, and deionized water to the resin mixture, removing the solvent from the formed latex, separating the solvent from water, and recycling the solvent from the resin mixture for utilization in a subsequent phase inversion emulsion process. | 11-17-2011 |
| 20120094231 | METHOD OF MANUFACTURING TONER, TONER MANUFACTURING APPARATUS, AND METHOD OF MANUFACTURING RESIN PARTICLES - A method of manufacturing toner is provided, including discharging a toner constituents liquid from multiple nozzles to form liquid droplets and solidifying the liquid droplets into toner particles. The multiple nozzles satisfy the following formula: | 04-19-2012 |
| 20120135346 | PROCESSES FOR PRODUCING POLYESTER LATEXES WITH BIO-BASED SOLVENTS - A process for making a latex emulsion suitable for use in a toner composition includes contacting at least one polyester resin with a bio-based solvent to form a resin mixture, adding a neutralizing agent and deionized water to the resin mixture, removing the solvent from the formed latex, and recovering the emulsion. The solvent removed from the formed latex may be re-used, making the process very environmentally friendly. | 05-31-2012 |
| 20120171607 | TONER - Toner characterized in that assuming that the glass transition point of the toner measured by a differential scanning calorimeter (DSC) is represented by T | 07-05-2012 |
| 20120264049 | METHOD OF MANUFACTURING TONER - A method of manufacturing toner is provided. The method includes preparing a toner constituents liquid by dissolving or dispersing toner constituents in an organic solvent. The toner constituents includes a binder resin and a charge controlling agent. The charge controlling agent includes a polycondensation product of a phenol with an aldehyde. The method further includes forming a liquid column resonance standing wave in the toner constituents liquid in a chamber having at least one nozzle by vibrating the toner constituents liquid. The method further includes forming the toner constituents liquid into liquid droplets by discharging the toner constituents liquid from the nozzle. The nozzle is disposed within an area including antinodes of the liquid column resonance standing wave. The method further includes removing the organic solvent from the liquid droplets to solidify the liquid droplets. | 10-18-2012 |
| 20120270148 | METHOD OF MANUFACTURING TONER, APPARATUS FOR MANUFACTURING TONER, AND METHOD OF MANUFACTURING RESIN PARTICLE - A method of manufacturing toner includes forming liquid droplets. The forming liquid droplets includes vibrating a toner constituents liquid in a liquid column resonance liquid chamber having a plurality of nozzles to form a liquid column resonance pressure standing wave therein, and discharging the toner constituents liquid from the nozzles. The method further includes solidifying the liquid droplets. The toner constituents liquid includes an organic solvent and toner constituents dissolved or dispersed in the organic solvent. The toner constituents include a resin, a colorant, and a release agent. The nozzles are disposed within an area including an antinode of the liquid column resonance pressure standing wave. One of the nozzles disposed closer to a node of the liquid column resonance pressure standing wave has a smaller outlet diameter than that disposed farther from the node. The toner constituents liquid is applied with a uniform pressure at a vicinity of each nozzle. | 10-25-2012 |
| 20130034810 | METHOD OF MANUFACTURING TONER, APPARATUS FOR MANUFACTURING TONER, AND METHOD OF MANUFACTURING RESIN PARTICLES - A method of manufacturing toner is provided. In the method, toner constituents are dissolved or dispersed in an organic solvent to prepare a toner constituents liquid. The toner constituents liquid is degassed so that the toner constituents liquid includes dissolved oxygen in an amount of 3 mg/L or less. The toner constituents liquid is vibrated in a chamber having at least one nozzle to form a liquid column resonance standing wave in the toner constituents liquid. The toner constituents liquid is discharged from the nozzle disposed within an area including an antinode of the liquid column resonance standing wave to form the toner constituents liquid into liquid droplets. The liquid droplets are dried to solidify the liquid droplets into solid particles. | 02-07-2013 |
| 20130084522 | AQUEOUS DISPERSIONS FOR USE AS TONERS - 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. | 04-04-2013 |
| 20130164673 | METHOD OF MANUFACTURING ELECTROPHOTOGRAPHIC TONER - A method of manufacturing electrophotographic toner containing particles obtained by fusing aggregate particles obtained by aggregating an aqueous dispersion of a polyester resin for toner includes: mixing together at least a polyester resin, an organic solvent, and a neutralizer to obtain a mixture (Step 1); mixing the mixture obtained in the step 1 with at least water to obtain a resin dispersion (Step 2); removing an organic solvent from the resin dispersion obtained in the step 2 to obtain an aqueous dispersion of a polyester resin (Step 3); and mixing the aqueous dispersion obtained in the step 3 with a surfactant optionally (Step 4), in which the aqueous dispersion of the polyester resin for toner is obtained through the steps 1-4, the surfactant is added in a content of 70-100 weight % based on the total amount of the surfactant added in the steps 2 and/or 4. | 06-27-2013 |
| 20130196266 | TONER, DEVELOPER, AND IMAGE FORMING APPARATUS - A toner produced by dissolving or dispersing toner components comprising a binder resin, a colorant, and a charge controlling agent in an organic solvent to prepare a toner components liquid, forming liquid droplets of the toner components liquid in a gas phase, and solidifying the liquid droplets into toner particles of the toner. The charge controlling agent includes a polycondensation reaction product of a phenol with an aldehyde. | 08-01-2013 |
| 20130323638 | HEAT TREATMENT APPARATUS AND METHOD FOR MANUFACTURING TONER - An object of the present invention is to suppress the increase of coarse particles due to the fusion of powder particles and reduce a ratio of particles that have been excessively spheroidized, when the powder particles are heat-treated. A heat treatment apparatus including a raw-material supply unit, a hot-air supply unit for heat-treating a raw material and a discharge portion for discharging the heat-treated powder particles, and supplying hot air toward a raw material to be supplied from the raw-material supply unit, wherein the hot-air supply unit has a first nozzle and a second nozzle which spread in the radial direction downward from an upstream side in a hot-air supply direction, the second nozzle is arranged in the inside of the first nozzle, the hot air passes through a space between the first nozzle and the second nozzle, and an air-flow adjustment unit section for rotating the supplied hot air spirally along an inner wall face of the apparatus is provided in an outlet portion of the hot-air supply unit. | 12-05-2013 |
| 20140038100 | PARTICULATE MATERIAL PRODUCTION APPARATUS, AND PARTICULATE MATERIAL PRODUCTION METHOD - A particulate material production apparatus is disclosed. The particulate material production apparatus includes a droplet ejector to eject droplets of a particulate material composition liquid or a melted particulate material composition in a droplet ejection direction from nozzles; a solidifying device to solidify the droplets; a first airflow forming device to form a first airflow to feed the ejected droplets to the solidifying device with the first airflow; and a second airflow forming device to form a second airflow to apply the second airflow the droplets before the droplets are fed by the first airflow. The second airflow forming device forms the second airflow by supplying a pressed gas from a slit, and the traveling direction of the first airflow is substantially perpendicular to the droplet ejection direction. | 02-06-2014 |
| 20140038101 | Stable Emissive Toner Composition System and Method - A method of producing an emissive toner composition including selecting a photoluminescent agent, a charge control agent, and one or more additives and combining the photoluminescent agent, charge control agent, and one or more additives to form an emissive toner composition that when printed to produce an image component on a substrate, the emission spectra of the image component for irradiation with a first excitation energy includes only dominant emission peaks corresponding to one or more dominant emission peaks of the photoluminescent agent. The photoluminescent agent is selected such that it emits light having one or more dominant emission peaks in a first emission spectral region when irradiated with the first excitation energy. The charge control agent and one or more additives are selected such that they do not emit light in the visible spectrum when irradiated with visible light and does not emit light in the first emission spectral region when irradiated with the first excitation energy. | 02-06-2014 |
| 20140120468 | HEAT TREATING APPARATUS FOR POWDER PARTICLES AND METHOD OF PRODUCING TONER - A production apparatus that does not generate coalesced particles and can reduce a generation frequency of a product having a high circularity by a uniform treatment even if the throughput is increased is provided. A heat treating apparatus for powder particles containing a binder resin and a colorant, the heat treating apparatus including: a treating chamber | 05-01-2014 |
| 20140127624 | DISPENSING TONER ADDITIVES VIA CARRIER DISPENSE AND CLEAR TONER - A process is disclosed for the preparation of developer compositions comprising: providing a first developer including carrier and a first toner comprised of resin, pigment, polyolefin, a first compatibilizer, a first charge control agent, and a first metal oxide surface additive; and, adding thereto a second developer including carrier, and a second toner, second compatibilizer, a second charge control agent, and a second metal oxide surface additive. | 05-08-2014 |
| 20140141371 | ELECTROSTATIC IMAGE DEVELOPING CARRIER, PROCESS OF MAKING THE SAME, ELECTROSTATIC IMAGE DEVELOPER, PROCESS CARTRIDGE, IMAGE FORMING METHOD, AND IMAGE FORMING APPARATUS - An electrostatic image developing carrier includes a ferrite particle that contains from about 1.0% by weight to about 14.0% by weight of elemental magnesium, wherein an average distribution ratio D of the elemental magnesium in the ferrite particle is from about 1.1 to about 2.0, wherein the average distribution ratio D is defined as an average value of D′ of at least 50 ferrite particles, wherein D′ is defined as W1/W2, wherein W1 is a weight ratio of elemental magnesium content Mg to elemental iron content Fe, Me/Fe, in a whole cross-section of the ferrite particle, and W2 is a weight ratio of elemental magnesium content Mg to elemental iron content Fe, Me/Fe, in a square, the two opposite vertices of which are located at two points on a diameter of a circle circumscribing the cross-section, each being half a radius distant from the center of the circumscribing circle. | 05-22-2014 |
| 20140162185 | TONER - A toner containing toner particles, each of which contains a binder resin and a colorant, and silica particles, wherein the silica particles have a volume average particle diameter (Dv) of 70 nm or more and 500 nm or less, the variation coefficient of diameters of the silica particles, based on volume distribution thereof, is 23% or less, and wherein when the silica particles are heated from 105° C. to 200° C., the ratio of mass decrease is 0.60% or less. | 06-12-2014 |
| 20140248558 | Preparing Colorant Dispersions Using Acoustic Mixing - The present disclosure provides processes for making inorganic or organic colorant dispersions using an acoustic mixer, where such dispersion may be used to make toner. Such processes apply low frequency, high intensity acoustic energy and a consistent shear field throughout an entire mixing vessel and provide uniform dispersion of colorants within minutes. | 09-04-2014 |
| 20140248559 | Acoustic Method to Prepare Polyester Resin Emulsions - The disclosure relates to a process for making a latex emulsion suitable for use in a toner comprising at least one amorphous polyester resin and a solvent to form a resin mixture, including that the process is carried out at room temperature using acoustic mixing. | 09-04-2014 |
| 20140370437 | Production of Latex using a Wipe Film Evaporator - A process is disclosed for making a resin emulsion suitable for use in forming toner particles including using a wiped film evaporator for removing residual solvents. | 12-18-2014 |
| 20150086922 | LATEX FORMING PROCESS COMPRISING CONCURRENT STEAM INJECTION EMULSIFICATION AND SOLVENT DISTILLATION - A process includes dissolving a polymer in an organic solvent to form a polymer solution and forming a latex from the polymer solution by contacting the polymer solution with steam while substantially simultaneously distilling the organic solvent. | 03-26-2015 |
| 20150355563 | TONER - In the measurement of an endothermic amount of a toner, (1) an endothermic peak temperature (Tp) derived from the binder resin is 50° C. or higher and 80° C. or lower; (2) a total endothermic amount (ΔH) derived from the binder resin is 30 [J/g] or more and 125 [J/g] or less based on mass of the binder resin; (3) when an endothermic amount derived from the binder resin from an initiation temperature of an endothermic process to Tp is represented by ΔH | 12-10-2015 |
