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Patent Searching and Data


Matches 851 - 900 out of 62,985

Document Document Title
WO/2010/120059A3
Disclosed is a method for producing a toner. The method for producing a toner according to the present invention involves using sulfonic acid group-free polyester, and producing toner particles from an aqueous medium having no organic so...  
WO/2010/147385A2
The present invention relates to a pressure fixing toner which can be fixed at a lower temperature to enable energy-efficient high-speed printing, and a preparation method thereof. The pressure fixing toner comprises: a core which compri...  
WO/2010/146814A1
Provided is a method for coating the surface of magnetic carrier core particles with coating resin composition particles by turning a rotor having multiple stirring members at the surface thereof in order to uniformly coat the surface of...  
WO/2010/143385A1
Disclosed is a toner binder in which a wax can be dispersed with good dispersilibity and which has good electrostatic properties and blocking resistance. The toner binder is characterized by comprising a polyester resin (A) which is prod...  
WO/2010/140677A1
A magnetic carrier for electrophotographic developers which consists of spherical magnetic composite particles prepared by binding ferromagnetic iron oxide particles with a phenol resin, characterized in that the ten-point mean roughness...  
WO/2010/137599A1
A process for producing a core-shell toner is provided in which the toner has core particles containing at least a binder resin (1), a colorant and a release agent and shell layers which contain at least a resin (2) and with which the co...  
WO/2010/090409A3
A toner having a core-shell structure and a method for preparing same are disclosed. The shell unit contains a cross-linked resin to achieve an improved hot offset resistance and an improved charging stability for the toner.  
WO/2010/124616A1
A developer for electrophotographic imaging devices comprises 100 parts by weight of toner particle, and 0.1-4 parts by weight of hydrophobic silica with a particle size of 5-20 nanometers. The toner particle comprises 100 parts by weigh...  
WO/2010/123099A1
Provided is a polyester resin for toners that is obtained by performing condensation polymerization of a carboxylic acid component and an alcohol component, wherein the polyester resin for toners includes an aromatic compound represented...  
WO/2010/120060A2
The present invention provides a toner which has enhanced high temperature storage stability and which prevents the degradation of the charging properties thereof caused by moisture absorption. The toner has a particle volume mean diamet...  
WO/2010/120059A2
Disclosed is a method for producing a toner. The method for producing a toner according to the present invention involves using sulfonic acid group-free polyester, and producing toner particles from an aqueous medium having no organic so...  
WO/2010/116851A1
Disclosed is a charged powder which is capable of forming a highly reliable conductive wire that is dense and free from separation or swelling, while having low resistivity and high adhesion strength to a glass substrate. The charged pow...  
WO/2010/114020A1
Disclosed is a toner binder which has high storage stability and can achieve both of good low-temperature fixability and good hot offset resistance (a broadened fixing temperature range). Specifically disclosed is a toner binder comprisi...  
WO/2010/113870A1
A toner in which the desired functions of external additives (functions of imparting charge stability, flowability, etc. to the toner) can be maintained even when the toner is used in a severe environment such as a high-temperature high-...  
WO/2010/113724A1
Provided are magnetic composite particles that comprise at least fine magnetic particles and a bio-based polymer, and that are characterized by having an average particle diameter of 10-100μm and 50-99.9 wt% of fine magnetic particles. ...  
WO/2010/113954A1
A black magnetic iron oxide powder comprising magnetite as a main component, characterized in that when the powder is molded into a tablet, the tablet in an alternating-current electric field has an electrical resistance that results in ...  
WO/2010/107130A1
An electrophotographic photoconductor having a photosensitive layer and a crosslinked resin surface layer over a support, wherein shapes of concaves and convexes in a surface of the electrophotographic photoconductor are measured by a su...  
WO/2010/106969A1
Disclosed is a charged powder for forming a conductor pattern, which is used for forming a dense conductor layer having low resistance. Also disclosed are a method for producing the charged powder for forming a conductor pattern, and a m...  
WO/2010/077013A3
A method for producing a toner by emulsion aggregation according to the present invention involves adding an abietic acid to adjust the viscosity in the early stage of the reaction, thereby improving the particle size distribution of the...  
WO/2010/108073A1
A bio-toner for use in electrophotographic image forming that contains a bio-resin component that is at least partially derived from a renewable resource is provided. A method of making the bio-toner that contains a bio-resin component f...  
WO/2010/106874A1
Disclosed is a wet image developer in which both good electrification properties and good dispersion stability of toner particles can be achieved. The wet image developer comprises a carrier solution and toner particles each comprising a...  
WO/2010/106873A1
Disclosed is a wet image developer in which the dispersibility of a pigment in a binder resin is improved and therefore the satisfactory coloring performance can be ensured. The wet image developer comprises a carrier solution and toner ...  
WO/2010/077012A3
A method for producing a toner by emulsion aggregation according to the present invention involves adding cellulose derivatives to adjust the viscosity in the early stage of the reaction, thereby improving the particle size distribution ...  
WO/2010/101270A1
A classifying apparatus including: a rotor with a plurality of annularly disposed blades, which rotates; and a louver with a plurality of blades which are disposed at an outer circumferential portion of the rotor so as to supply from the...  
WO/2010/098415A1
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...  
WO/2010/098413A1
A black toner has a toner particle including at least a resin (a) having a polyester as a main component, carbon black, and a wax, and a fine inorganic particle. When the Tgs of the black toner measured by DSC at temperature rise rate of...  
WO/2010/067884A3
The present invention relates to a crystalline resin for toners which includes a composite resin including a polycondensation-based resin component obtained by polycondensing an alcohol component containing an aliphatic diol having 2 to ...  
WO/2010/098021A2  
WO/2010/098226A1
A yellow toner is provided which can form high- quality images and has high offset resistance and excellent charging performance while being a capsule-type toner having excellent low-temperature fixability. The yellow toner satisfies, in...  
WO/2010/095794A1
The present invention relates to a toner composition with a broad fusing temperature range and a process for preparing the same. The toner composition according to the present invention creates entanglement between adjacent polymer chain...  
WO/2010/089943A1
A printing ink or toner containing a compound represented by general formula (1) [wherein R1, R2, R3, R4, R5, R6, R7 and R8 are each independently a hydrogen atom, an alkyl group, a cycloalkyl group, or an aryl group; or, alternatively, ...  
WO/2010/090409A2
A toner having a core-shell structure and a method for preparing same are disclosed. The shell unit contains a cross-linked resin to achieve an improved hot offset resistance and an improved charging stability for the toner.  
WO/2010/080099A1
The present invention is directed to surface treatment of toner particles and the toner developers used for the dry development of electrostatic charge images.  
WO/2010/077013A2
A method for producing a toner by emulsion aggregation according to the present invention involves adding an abietic acid to adjust the viscosity in the early stage of the reaction, thereby improving the particle size distribution of the...  
WO/2010/077012A2
A method for producing a toner by emulsion aggregation according to the present invention involves adding cellulose derivatives to adjust the viscosity in the early stage of the reaction, thereby improving the particle size distribution ...  
WO/2010/074720A1
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 ...  
WO/2010/071154A1
Disclosed are: a method for producing a fixed material, in which a dry toner containing a dye can be electrostatically transferred onto a base material such as a cloth satisfactorily by means of an electrophotographic process or the like...  
WO/2010/071153A1
Disclosed is a method for producing a fixed material. The method comprises the steps of: electrostatically providing at least one dry toner comprising a dye component and a binder resin on an electrically charged material; transferring t...  
WO/2010/067884A2
The present invention relates to a crystalline resin for toners which includes a composite resin including a polycondensation-based resin component obtained by polycondensing an alcohol component containing an aliphatic diol having 2 to ...  
WO/2010/067832A1
An electrophotographic apparatus and a process cartridge include an electrophotographic photosensitive member; a developing unit; and a cleaning unit, wherein depressed portions separated from each other and satisfying conditions below a...  
WO/2010/065075A1
A chemical toner is described as well as methods of preparing the same.  
WO/2010/013923A3
Provided is a method of preparing a toner. The method includes preparing initial polymer latex, and aggregating solid particles, that is, polymer latex particles, included in the initial polymer latex, wherein the aggregating of the poly...  
WO/2010/055933A1
The present invention provides a carrier which includes core material particles, and a coating layer on surfaces of the core material particles, wherein the coating layer contains a crosslinked product which is obtained by condensation o...  
WO/2010/050023A1
Disclosed is a binder resin for electrophotographic toners, which is composed of a polycondensed resin obtained by polycondensing an alcohol component, which contains an aliphatic polyhydric alcohol (alcohol A) having two or more seconda...  
WO/2010/050561A1
Disclosed are a process for the production of a pigment/resin composition, a coloring agent, and a coloring method. The process is characterized by introducing both a pigment and a heat-meltable resin continuously into a kneading extrud...  
WO/2010/047418A1
The present invention provides an electrostatic image developing toner capable of improving the dispersibility of wax in the toner and superior in offset resistance and in storageability (heat-resistant storageability) at high temperatur...  
WO/2010/042111A1
Toner compositions, treated fluoropolymer particles, methods of making treated fluoropolymer particles, and the like, are disclosed.  
WO/2010/011079A3
Provided are a toner and a method of preparing the same. The toner includes a binder resin, a coloring agent, and at least one additive, and a storage modulus curve of the toner with respect to temperature has multiple inflection points....  
WO/2010/041677A1
Provided is a toner which contains toner particles having a binding resin, a colouring agent, and wax; and inorganic fine particles, wherein the temperature-storage modulus curve of the toner at high frequency shows a characteristic beha...  
WO/2010/038538A1
Provided are silica fine particles which have small primary particle diameters and are useful as an external additive for a toner. The silica fine particles do not contain coarse agglomerate particles, which are causative of lowering in...  

Matches 851 - 900 out of 62,985