Class / Patent application number | Description | Number of patent applications / Date published |
430108230 | Azo containing adjuvant | 51 |
20080220358 | COLORING COMPOUND AND YELLOW TONER CONTAINING THE COLORING COMPOUND - Provided are a coloring compound for color toner which satisfies all of solubility in an organic solvent, a color tone, and lightfastness, and does not inhibit the polymerization of a polymerizable monomer when used in a polymerized toner, and a yellow toner using the coloring compound and achieving compatibility between a good color tone and excellent lightfastness, in which, the coloring compound has a structure represented by the following formula (1). | 09-11-2008 |
20090068581 | Magenta Toner for Developing Electrostatic Image - A magenta toner for developing an electrostatic image, the magenta toner comprising at least a binder resin and a magenta colorant, wherein the magenta colorant comprises a compound represented by Formula (1), wherein D is represented by one of Formulas (2) to (4): | 03-12-2009 |
20090075193 | COLORING COMPOUND, YELLOW TONER, SHEET FOR HEAT-SENSITIVE TRANSFER RECORDING, AND INK - A coloring compound is provided which is excellent in coloring ability and transparency, has high solubility in organic solvents, and is superior in light resistance. A toner, a sheet for heat-sensitive transfer recording and an ink that use the coloring compound are also provided. The coloring compound is represented by the following general formula: | 03-19-2009 |
20090087769 | Finely divided azo dye and process for producing the same - Finely divided azo dye and process for producing the same. The invention relates to a finely divided mono-azo pigment of formula (I) in the beta crystal phase (I), characterised in that at least 90 % by weight of the particles have a stoke equivalent diameter equal to or smaller than 130 nm. | 04-02-2009 |
20090104556 | Polymeric Colour Electrophotographic Toner Compositions and Process of Preparing Polymeric Electrophotographic Toner Composition - The present invention relates to micron to sub-micron sized coloured polymeric electrophotographic toner particles, a process for making those particles and their use as dry or liquid electrophotographic toners, and as component in the preparation of two-component electrophotographic developers. The particles comprise two different kinds of polymers and are made through dewatering of a water-in-oil emulsion. | 04-23-2009 |
20090117482 | ELECTROPHOTOGRAPHIC TONER - The present invention relates to a toner for electrophotography containing a resin binder, a colorant, and a clay-organic complex obtained by intercalating into a smectite clay a quaternary ammonium salt represented by the formula (A): | 05-07-2009 |
20090162776 | Magenta Toner For Developing Electrostatic Image - Disclosed is a magenta toner, which contains magenta colorants composed of compound A represented by Formulas (1), (2) or (3) in an amount of mA and compound B selected from a group consisting of a mono-azo pigment, a naphthol pigment and rhodamine chelate pigment in an amount of mA, and a ratio of amount mA:mB is 90:10 to 55:45. | 06-25-2009 |
20090202933 | YELLOW TONER - A yellow toner comprising colored resin particles containing a binder resin and a yellow colorant, wherein the yellow colorant is a compound represented by a structural formula (1): | 08-13-2009 |
20090246672 | TONER FOR THE DEVELOPMENT OF ELECTROSTATIC IMAGE AND THE PRODUCTION PROCESS THEREOF - A toner for the development of an electrostatic image is provided wherein at least one layer of a particulate resin is coated onto a substantial portion of the surface of an agglomerate of particles made from at least primary polymer particles and primary colorant particles, wherein at least one of the primary polymer particles and the particulate resin contains a wax, and the particulate resin of the outermost layer is substantially free of wax and a process for producing the toner. | 10-01-2009 |
20090280426 | TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT - A toner for electrostatic image development containing a resin binder and a charge control agent, wherein the resin binder contains a polyester A obtained by polycondensing a carboxylic acid component containing isophthalic acid and/or an ester thereof, and an alcohol component, and wherein the charge control agent contains an azo-iron complex represented by the formula (I): | 11-12-2009 |
20090305156 | Pigment preparation based on an azo pigment - The invention relates to a pigment preparation which contains the mono-azo pigment of formula (1) and 0.1 to 40% by weight, preferably 0.5 to 25% by weight, in particular 1.0 to 17.5% by weight, of a pigment dispersant, in relation to the weight of the mono-azo pigment of formula (I), which is composed of disazo compounds, at least 30% by weight of the disazo compounds forming an asymmetrical disazo compound of formula Y-X-A-X-Z (II), in which A stands for biphenylene, 3,3′-dichlorobiphenylene, 3,3′-dimethoxybiphenylene, 3,3′-dimethylbiphenylene or 2,2′-dichloro-3,3′-dimethoxybiphenylene; X stands for a —NH—CO—CH(COCH3)-N═N—, —N═N—CH(COCH3)-CO—NH— or —N═N— group; Y stands for substituted or unsubstituted phenyl, pyrazolin-5-on-4-yl, 1-phenyl-pyrazolin-5-on-4-yl, 2-hydroxynaphth-1-yl or 2-hydroxy-3-(phenylaminocarbonyl)naphth-1-yl, the substituents being C | 12-10-2009 |
20090311618 | Surface-modified non-magnetic mono-component color toner with improvements in background contamination and transfer efficiency and method of preparing the same - Provided is a non-magnetic mono-component color toner with improved charge properties by surface modification with a charge control agent. The color toner is prepared by spheroidizing toner core particles including a binder and a colorant in the presence of 0.5 to 3 parts by weight of a charge control agent and coating the resultant spherical toner core particles with a first spherical organic powder with an average particle size of 50 to 120 nm, a second spherical organic powder with an average particle size of 600 to 1,000 nm, silica with an average particle size of 5 to 20 nm, and titanium dioxide with an average particle size of 300 to 1,000 nm. The color toner exhibits excellent surface charge properties (e.g., a narrow charge distribution, high chargeability, and good charge maintenance capability), thereby ensuring low image/background contamination, high transfer efficiency, good image density and long-term stability. | 12-17-2009 |
20100009279 | TONER FOR ELECTROPHOTOGRAPHY - A toner for electrophotography comprising a charge control agent comprising a specified iron-azo complex or a specified metal compound of a benzilic acid derivative, a colorant, and a resin binder comprising a polyester, the polyester being a polyester obtained by polycondensing an alcohol component containing a propylene oxide adduct of bisphenol A and a carboxylic acid component, wherein the propylene oxide adduct of bisphenol A has an average mole of propylene oxide added of from 2.4 to 4.0, and wherein an adduct with 2 mol of propylene oxide is contained in an amount of 60% by mol or less, and an adduct with 4 mol of propylene oxide is contained in an amount of 10% by mol or more, of the propylene oxide adduct of bisphenol A, and wherein the propylene oxide adduct of bisphenol A has a content ratio of primary hydroxyl groups of 10% by mol or less of the entire hydroxyl groups. The toner for electrophotography of the present invention is suitably used in developing latent images and the like formed in electrophotography, electrostatic recording method, electrostatic printing method or the like. | 01-14-2010 |
20100015544 | TONER PROCESS - The present disclosure provides toners and processes for preparing toner particles possessing excellent charging characteristics. The process includes forming a dispersion including at least one organic and/or organometallic charge control agent, and then combining that dispersion with an emulsion suitable for use in forming toner particles. | 01-21-2010 |
20100035171 | YELLOW TONER - Provided is a yellow toner having toner particles each containing at least a binder resin, a colorant, and a polar resin, the yellow toner being characterized in that: the colorant is a coloring compound having a specific structure; in a microscopic compression test at a measurement temperature of 25° C., the toner has a recovery ratio Z(25) of 40 to 80%; and the toner has a glass transition temperature (TgA) measured with a differential scanning calorimeter (DSC) of 40° C. to 60° C. and a temperature (P1) of the highest endothermic peak measured with the DSC of 70° C. to 90° C., and the temperature (P1) of the highest endothermic peak and the glass transition temperature (TgA) satisfy the relationship of 15° C.≦P1−TgA≦50° C. | 02-11-2010 |
20100035172 | NANOSIZED PARTICLES OF BENZIMIDAZOLONE PIGMENTS - A nanoscale pigment particle composition includes an organic benzimidazolone pigment, and a sterically bulky stabilizer compound, wherein the benzimidazolone pigment associates non-covalently with the sterically bulky stabilizer compound that is an alkylated-benzimidazolone compound; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale pigment particles. | 02-11-2010 |
20100099039 | Pigment Composition Based on C.I. Pigment Yellow 191 - The invention relates to a pigment composition based on P.Y. 191 of the formula (1) containing 0.05 to 30 mol %, based on the sum of P.Y. 191 and a further yellow colorant, of at least one further yellow colorant of the formula (2) and/or of C.I. Pigment Yellow 100 in which R1, R2, R3 and R4 are each independently hydrogen, halogen, —CH | 04-22-2010 |
20100099040 | Toners comprising modified pigments and processes for preparing the same - The present invention relates to toner compositions comprising a resin and a colorant. Various embodiments of the colorant used in the toner compositions are disclosed, including a modified pigment comprising a pigment having attached at least one organic group having the formula −X-I, wherein X, which is directly attached to the pigment, represents an arylene or heteroarylene group, or an alkylene group, and I represents a non-polymeric group comprising at least one ionic group or at least one ionizable group. Processes for preparing toner compositions are also described. | 04-22-2010 |
20100104967 | ELECTROSTATIC-IMAGE-DEVELOPING TONER AND PREPARATION PROCESS THEREOF, ELECTROSTATIC IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS - An electrostatic-image-developing toner includes: a binder resin; and a yellow pigment in an amount of from about 5 to about 50 ppm. | 04-29-2010 |
20100104968 | Polymerized toner having high resolution - A polymerized toner is provided. The polymerized toner comprises a reactive anionic surfactant having at least one reactive functional group. The reactive anionic surfactant is added simultaneously with a dispersant to prepare an aqueous dispersion or is added within 2 hour after a polymerization reaction of a monomer mixture is initiated in an aqueous dispersion. This simultaneous or rapid addition allows the reactive anionic surfactant to be dispersed on the surface of the toner particles. The reactive anionic surfactant is located over the entire surface of the toner particles to increase the surface charge density of the toner, achieving good charge stability and excellent imaging characteristics. | 04-29-2010 |
20100178607 | Method for the Production of Pure C.I. Pigment Orange 74 - The invention relates to a method for conditioning and purifying pigment orange 74. The method is characterized in that the aqueous suspension of the raw pigment, optionally after adding an organic solvent from the group comprising isobutanol, chlorobenzene and o-dichlorobenzene, is subjected to a finishing treatment, the organic solvent is optionally removed using a distillation process, the remaining aqueous pigment suspension is mixed with a non-ionic surfactant and is heated to a temperature ranging from 30 to 100° C. and the pigment is then filtered off. | 07-15-2010 |
20100203440 | TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT - A toner for electrostatic image development containing a resin binder, a negatively chargeable charge control agent, and a positively chargeable charge control agent, wherein the resin binder contains at least one polyester, wherein a carboxylic acid component of the polyester contains isophthalic acid and/or an ester thereof and fumaric acid and/or an ester thereof, provided that if two or more polyesters are used, the carboxylic acid component is taken as an overall component, and wherein the negatively chargeable charge control agent contains a metal-containing azo dye and/or a metal complex of salicylic acid, and wherein the toner has a softening point of from 90° to 120° C. The toner for electrostatic image development of the present invention can be suitably used in developing latent images formed in, for example, electrophotography, an electrostatic recording method, an electrostatic printing method, or the like. | 08-12-2010 |
20100261114 | MAGENTA ELECTROSTATIC DEVELOPING TONER, DEVELOPER FOR ELECTROSTATIC DEVELOPMENT, PRODUCTION METHOD OF ELECTROSTATIC DEVELOPING TONER, IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS - A magenta electrostatic developing toner includes binder resin particles that do not contain a coloring agent or a release agent and has a shape factor SF | 10-14-2010 |
20100261115 | YELLOW ELECTROSTATIC DEVELOPING TONER, DEVELOPER FOR ELECTROSTATIC DEVELOPMENT, PRODUCTION METHOD OF ELECTROSTATIC DEVELOPING TONER, IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS - A yellow toner includes binder resin particles that do not contain a coloring agent or a release agent and have a shape factor SF | 10-14-2010 |
20100273101 | YELLOW TONER - To provide a yellow toner satisfying good toner particles and a superior coloring power, the toner has toner base particles having at least a binder resin, a colorant and a wax component, and contains as the colorant at least a coloring matter compound represented by the following general formula (1) and a pigment represented by the following formula (2). | 10-28-2010 |
20100297546 | TONER COMPOSITIONS - Toner particles are provided which may, in embodiments, include a core and a shell. In embodiments, charge control agents may be co-emulsified with a resin utilized to form a shell. The shell may prevent a crystalline resin in the core from migrating to the toner surface. Inclusion of the charge control agent in the shell itself may provide the resulting toner particles with desirable charge characteristics and sensitivity to relative humidity. | 11-25-2010 |
20100316946 | SELF EMULSIFYING GRANULES AND SOLVENT FREE PROCESS FOR THE PREPARATION OF EMULSIONS THEREFROM - A process for making a self-emulsifying composite suitable for use in forming latex emulsions includes contacting a resin with a solid or highly concentrated surfactant, a solid neutralizing agent in the absence of water and an organic solvent to form a mixture, melt mixing the mixture, and forming a self-emulsifying composite of the melt mixed mixture such as a granule. Self-emulsifying granules are also provided and configured to form a latex emulsion when added to water, which may then be utilized to form a toner. | 12-16-2010 |
20110070539 | ELECTROSTATIC-IMAGE-DEVELOPING TONER, ELECTROSTATIC IMAGE DEVELOPER, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD - An electrostatic-image-developing toner includes a polyester resin; two or more pigments; a polyethylene wax; and a polyolefin-polyvinyl-based graft copolymer, and satisfies the relationship represented by the following equation (1): | 03-24-2011 |
20110104607 | CHEMICAL TONER CONTAINING SUBLIMATION COLORANT FOR SECONDARY TRANSFER PROCESS - A chemical toner composition that includes at least one curable amorphous resin and at least one sublimation colorant. | 05-05-2011 |
20110183251 | DEVELOPING AGENT AND METHOD FOR MANUFACTURING THE SAME - According to one embodiment, there is provided a developing agent including a toner particle containing a coloring agent, a binder resin and an ester wax having an alkyl group having a carbon number of from 32 to 46. When the wax is analyzed by an mass spectrometry, an ester compound having a carbon number showing the maximum strength ratio accounts for from 20 to 45% by mass of the whole of the wax. | 07-28-2011 |
20120070773 | ELECTROSTATIC IMAGE DEVELOPING TONER, ELECTROSTATIC IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - The present invention provides a toner for developing an electrostatic charge image including toner particles having residual ammonium ions and silica particles containing a chlorine compound as an external additive. | 03-22-2012 |
20120094226 | AZO COMPOUND, AND PIGMENT DISPERSANT, PIGMENT COMPOSITION, PIGMENT DISPERSION AND TONER INCLUDING THE AZO COMPOUND - There is provided a colorant compound improved in the dispersibility of an azo pigment into a water-insoluble solvent. The colorant compound is represented by the following general formula (1). R | 04-19-2012 |
20120107737 | Toner Compositions - Toner particles are provided which may, in embodiments, include a core and a shell formed in situ. The resins utilized to form the core, the shell, or both, may be contacted with a water soluble initiator. The resin, in embodiments present in the shell, cross-links at a temperature near the temperature for coalescence, and may prevent a crystalline resin in the core from migrating to the toner surface. | 05-03-2012 |
20120231388 | AZO COMPOUND, AND PIGMENT DISPERSANT, PIGMENT COMPOSITION, PIGMENT DISPERSION AND TONER INCLUDING THE AZO COMPOUND - There is provided an azo compound for improvement in the dispersibility of an azo pigment into a water-insoluble solvent. The azo compound is represented by the following general formula (1): | 09-13-2012 |
20120251939 | PIGMENT DISPERSION AND YELLOW TONER - To obtain a pigment dispersion and a yellow toner having high coloring power and high dispersibility of a pigment in a dispersion medium, a pigment dispersion containing a compound represented by general formula (1) and a yellow pigment represented by general formula (2) are provided in a dispersion medium. | 10-04-2012 |
20120282543 | Easily Dispersible Pigment Preparation Based on C.I. Pigment Yellow 155 - Easily dispersible pigment preparation based on C.I. Pigment Yellow 155 | 11-08-2012 |
20130029263 | TONER FOR NON-CONTACT FUSING - A toner for non-contacting fusing containing toner matrix particles containing a resin binder and an external additive having an average particle size of from 10 to 100 nm, wherein the external additive is externally added to the toner matrix particles, wherein the resin binder contains one or more polyesters, wherein a carboxylic acid component of the polyester contains one or more isophthalic acid compounds and one or more fumaric acid/maleic acid compounds, wherein the isophthalic acid compound is contained in an amount of from 10 to 35% by weight, the fumaric acid/maleic acid compound is contained in an amount of from 1 to 15% by weight, and the isophthalic acid compound and the fumaric acid/maleic acid compound are contained in a total amount of from 20 to 36% by weight, of a total amount of the entire raw material monomers of the polyester in the resin binder, and wherein the toner has a softening point of from 90° to 120° C. The toner is suitably used in developing latent images formed in, for example, electrophotography, an electrostatic recording method, an electrostatic printing method, or the like. | 01-31-2013 |
20130095421 | TONER INCLUDING COMPOUND HAVING BISAZO SKELETON - An object of the present invention is to provide a toner having high dispersibility of an azo pigment in a binder resin and a good color tone, having suppressed image fogging and high transfer efficiency, and providing a stable image for a long time. The toner including toner base particles, each of which includes: at least a binder resin, a compound in which a specific bisazo skeleton unit bonds to a specific polymer resin unit, and an azo pigment as a colorant. | 04-18-2013 |
20130122413 | AZO COMPOUND, PIGMENT DISPERSANT CONTAINING THE AZO COMPOUND, PIGMENT COMPOSITION, PIGMENT DISPERSION, AND TONER - A novel compound that can improve the dispersibility of an azo pigment in a non-water-soluble solvent is provided, which is represented by the following formula (1): | 05-16-2013 |
20130323636 | ELECTROSTATIC INK COMPOSITION - The present disclosure is drawn to an electrostatic ink composition comprising: (a) a carrier liquid; (b) particles comprising: (i) a polymer having a melt flow rate of less than 60 g/10 minutes, (ii) a colorant, (c) a charge director, wherein the electrostatic ink composition excludes a positively charged organic molecule or an organic molecule capable of becoming a positively charged organic molecule during an electrostatic printing process. Also disclosed herein is a method of producing a electrostatic ink composition and a method of electrophotographic printing an electrostatic ink composition. | 12-05-2013 |
20140004459 | TONER FOR DEVELOPING ELECTROSTATIC CHARGE IMAGE | 01-02-2014 |
20140004460 | TONER | 01-02-2014 |
20140134531 | YELLOW TONER AND METHOD FOR PRODUCING THE YELLOW TONER - A yellow toner is provided which is much more improved in color development and chroma, and much more improved in light resistance. The yellow toner contains, at least, a binder resin, a wax, and a coloring agent. The coloring agent is a compound represented by the following general formula (1). | 05-15-2014 |
20140162184 | Color Toner - The present disclosure describes a color single component toner with desirable fusing performance. | 06-12-2014 |
20140170553 | YELLOW TONER - The present invention provides a yellow toner having high compatibility of a colorant with a binder resin, having good chroma, and being useful for broadening the green color gamut. The yellow toner contains the binder resin and the colorant, wherein the colorant contains a compound represented by the general formula (1). | 06-19-2014 |
20140308610 | TONER AND METHOD FOR MANUFACTURING TONER PARTICLES - The present invention provides a toner that contains an azo pigment well-dispersed in a binder resin and has a satisfactory color tone. | 10-16-2014 |
20150024321 | NOVEL COMPOUND HAVING AZO SKELETON AND PIGMENT DISPERSANT, PIGMENT COMPOSITION, PIGMENT DISPERSION, AND TONER CONTAINING THE COMPOUND - To provide an azo compound which improves the dispersibility of an azo pigment in a non-water soluble solvent. | 01-22-2015 |
20150037725 | YELLOW TONER AND PROCESS FOR PRODUCING THE YELLOW TONER - A yellow toner is provided which is superior in dispersibility of C. I. pigment yellow 185, has a high color development property, and is superior in light resistance. The yellow toner has toner particles containing at least a binder resin, a wax, and a colorant, wherein the yellow toner contains C.I. pigment yellow 185 and a compound represented by the general formula (1) as the colorant: | 02-05-2015 |
20150140487 | YELLOW TONER - The present invention provides a yellow toner having excellent light resistance. The yellow toner includes toner particles, each of which contains a binder resin, a wax, and a colorant. The colorant is a compound represented by Formula (1). | 05-21-2015 |
20150378273 | YELLOW TONER AND PRODUCTION METHOD THEREFOR - Provided is a toner having high coloring power and being excellent in light fastness. Specifically, provided is a yellow toner, including at least: a binder resin; a wax; and a colorant, in which the colorant contains a compound represented by the general formula (1). | 12-31-2015 |
20170235241 | ELECTROSTATIC LATENT IMAGE DEVELOPING TONER | 08-17-2017 |