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7390605 |
Resin binder for toner
The present invention relates to a resin binder for toner, containing a crystalline polyester having a softening point of 80° to 130° C., containing a resin obtained by polycondensation of an...
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7387863 |
Crystalline polyester for toner
The present invention relates to a crystalline polyester for toner, obtained by polycondensation of an alcohol component comprising 70% by mol or more of 1,6-hexanediol, and a carboxylic acid...
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7385002 |
Process for preparing resin binder for toner
The present invention relates to a process for preparing a resin binder for toner, comprising the steps of (A) carrying out an addition polymerization reaction of addition polymerization resin...
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7384722 |
Method for preparing functional particulate organic material, toner using the functional particulate organic material, and image forming method and apparatus using the toner
A method for preparing a functional particulate organic material, including providing a suspension of a particulate organic material having an acid group on a surface thereof; reacting a metal...
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7379696 |
Toner for developing electrostatic image, fixing method for fixing image formed of the toner, and image forming method and process cartridge using the toner
A toner including toner particles including a colorant; a binder resin; and a release agent, wherein the binder resin includes a polyester resin (A) having a crystallinity and a specific formula...
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7378213 |
Image forming process and image forming apparatus
A process contains in which heating and fixing an image of a toner on a recording medium is performed by heating one or more heat-transfer media by a heating element, and pressing the recording...
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7378210 |
Electrophotographic toner and manufacturing method thereof, polyester resin for electrophotographic toner and manufacturing method thereof, electrophotographic developer and image forming method
The present invention provides a binder resin that is used for an electrophotographic toner, an electrophotographic toner using the same, and a manufacturing method thereof, as well as an...
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7374848 |
Toner and method or preparing the toner
A toner including a binder; a colorant; and a wax, wherein the binder includes a polyester resin; and a reaction product of a polymer having a group capable of reacting with an active hydrogen with...
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7368214 |
Electrostatic latent image developing toner and manufacturing method thereof
An electrostatic latent image developing toner including, as a binder resin, a crystalline resin and at least one kind of non-crystalline resin, wherein, in a dynamic viscoelasticity measurement by...
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7368213 |
Toner and fixing device and image forming device using the same
A toner containing toner particles having a core-shell structure containing a binder resin, a colorant and a release agent. The toner particles are prepared by dissolving or dispersing at least one...
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7368211 |
Magnetic toner
To provide a magnetic toner which is excellent in durability and developability even in the case of being applied to high-speed developing process or being used in a large-capacity process...
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7365150 |
Process for producing polyester resin for toner
A polyester resin for toner which is obtained through polymerization in the presence of a release agent ingredient with a melting point of 60–100° C. or a release agent ingredient comprising an...
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7361441 |
Color toner, and full-color image-forming method
A yellow toner in which, in a spectral-distribution diagram in which the reflectance (%) is plotted as ordinate and the wavelength (nm) as abscissa, the reflectance determined for a toner in a...
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7358023 |
Method for producing toner, toner and printed matter
The invention provides a method for producing a toner comprising: a step of preparing a powder for production of the toner from a raw material containing a resin as a main component, a coloring...
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7351510 |
Toner for electrophotography
A toner for electrophotography, containing a low-softening point polyester-based resin having a softening point of from 80° to 120° C.; and a high-softening point polyester-based resin having a...
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7340202 |
Image forming apparatus and process cartridge for use therewith
An image forming apparatus and process cartridge that achieves extended operating life of a two-component developer without generating such problems as toner scattering, etc. either in the initial...
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7335453 |
Toner compositions and processes for making same
A toner composition is provider including a branched amorphous polyester resin and a crystalline polyester resin, wherein the toner possesses rheological properties yielding desired characteristics.
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7329476 |
Toner compositions and process thereof
A toner composition is provided which contains a polyester resin with hydrophilic groups and hydrophobic end groups and a colorant, wherein said polyester resin is of the formula:
wherein R is...
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7323281 |
Toner, developer including the toner, container containing the toner or the developer and method of producing the toner
A toner comprising toner particles comprising a first binder resin; a second binder resin different from said first binder resin and having a glass transition temperature of from 40 to 55° C.; a...
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7320850 |
Magenta toner
A magenta toner is provided which contains at least a binder resin, a colorant, and a wax, in which a maximum heat-absorption peak temperature as measured using a differential scanning calorimeter,...
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7316879 |
Imaging color toner, color image forming method and color image forming apparatus
In an imaging color toner employing a photofixing system, a binder resin, which contains, as a principal component, a polyester resin obtained by mixing a first polyester resin having a softening...
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7312011 |
Super low melt and ultra low melt toners containing crystalline sulfonated polyester
A toner is disclosed that includes a toner binder of crystalline sulfonated polyester, wherein the crystalline sulfonated polyester is 90% by weight or more of the toner binder, and a colorant. In...
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7306887 |
Toner and developer for electrostatic development, production thereof, image forming process and apparatus using the same
A toner is prepared by dissolving and/or dispersing a modified polyester resin in an organic solvent to yield a solution or dispersion, the modified polyester resin being reactive with a compound...
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7303847 |
Dry toner
A dry toner is provided that is prepared by a method including the steps of (A) dissolving or dispersing a toner composition in an organic solvent to prepare a toner composition liquid and (B)...
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7300736 |
Toner, and developer, image forming method, image forming apparatus and process cartridge using the toner
A toner contains: (A) a binder resin; (B) a colorant; (C) a charge controlling agent; and (D) an additive. (A) contains: a polyester resin containing no tetrahydrofuran-insoluble component; and...
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7300733 |
Black toner with defined loss tangent
To provide a black toner having excellent charging property and transferring property against a severe environmental change. The black toner includes toner particle containing at least a binder...
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7297455 |
Toner, and image forming method
A toner is composed primarily of toner particles containing at least a binder resin, a colorant and a wax, and inorganic fine particles. The binder resin is one which has at least a polyester unit...
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7294442 |
Toner for developing electrostatic image, method for manufacturing the toner, developer including the toner, container containing the toner, and color image forming method using the toner
A toner for developing an electrostatic image having a good combination of hot offset resistance and low temperature fixability. The toner includes (1) a resin having at least one group that can...
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7267864 |
Image supporting material, method for use thereof and image forming apparatus utilizing the same
The present invention provides an image supporting material for fixably supporting a color toner image, the material including a base material, a light scattering layer provided on the base...
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7262262 |
Resin composition for toner and toner
The present invention has for its object to provide a resin composition for toner exhibiting excellent low temperature fixation performance, high temperature offset-resistance and anti-blocking...
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7258959 |
Toner for electrophotography and image forming apparatus
The object of the present invention is to provide a developer having a sharp charge amount distribution and bringing out high-quality image without substantially smearing a charging unit,...
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7252914 |
Toner for electrophotography and developer for electrophotography using the same, process cartridge, apparatus for forming image, and method for forming image
A toner for electrophotography fulfilling both the fixability and the void resistance at high level, and forms a high-quality image. The toner for electrophotography contains: a binder resin; and a...
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7250485 |
Polyester resin composition for toner and toner
A toner resin composition comprising a linear polyester resin (A) containing a C 3 to C 10 aliphatic diol component and a linear polyester resin (B) containing a C 3 to C 10 aliphatic diol...
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7250243 |
Nonmagnetic one-component toner for electrophotographic image forming apparatus
A nonmagentic one-component toner for an electrophotographic image forming apparatus includes a toner with toner particles, a binder resin having a coloring agent, a charging control agent, and a...
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7250242 |
Toner
A toner comprising a resin binder and a colorant comprising a composite oxide of two or more metals, wherein the composite oxide has a BET specific surface area of 0.5 to 7 m 2 /g and a saturation...
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7247413 |
Electrostatic latent-image developing toner
An electrostatic latent-image developing toner comprising:
a core particle and a shell layer formed on an outer portion thereof, wherein the shell layer comprises a crystalline polyester...
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7241545 |
Toner, developer using the same, toner container using the same, process cartridge using the same, image-forming process using the same and image-forming apparatus using the same
A toner has a storage elastic modulus (G′) of 500 Pa or more at a frequency of 1 Hz and temperature of 180° C., while the toner is obtained by dissolving or dispersing a toner composition in an...
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7235338 |
Toner and image forming method and process cartridge for image forming apparatus using the toner
A toner prepared by a method of dissolving or dispersing toner constituents comprising a modified resin capable of reacting with an active hydrogen and a colorant which is a black metallic material...
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7235337 |
Toner for electrostatic image development
A toner for electrostatic image development, containing a resin binder containing a polyester having monomer units wherein at least one monomer is selected from the group consisting of fumaric acid...
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7232636 |
Toner for electrostatic image development
A toner for electrostatic image development comprising a resin binder comprising (a) a high-softening point polyester having a softening point of greater than 120° C. and 160° C. or less; and (b)...
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7229734 |
Electrophotographic toner
In the toner comprising at least a colorant, a releasing agent and a binder resin, the releasing agent being a mixture of carnauba wax and non-paraffin wax, the binder resin contains a polyester...
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7226984 |
Binder for electrostatic image developing toner
Provided is a binder for an electrostatic image developing toner using a polyester resin in which at least a part of a carboxylic acid component (a) and/or an alcohol component (b) comprises a...
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7217485 |
Toner for electrophotography, and image fixing process, image forming process, image forming apparatus and process cartridge using the same
A toner for electrophotography contains a binder resin, a charge control agent, and a colorant. The colorant is a black iron oxide compound containing 10 to 45% by weight of titanium component...
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7214460 |
Yellow toner
To provide a yellow toner allowing formation of an image with an excellent transparency for an OHP, an excellent coloring power, and an excellent light resistance. In the yellow toner including at...
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7214458 |
Toner compositions
A toner that contains resin, colorant, wax and an aromatic hydrocarbon compatibilizer.
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7211360 |
Developing agent
A developing agent comprising color toners and a cyan toner, the color toners including a yellow toner, a magenta toner, and a black toner, wherein the black toner comprises a binder resin...
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7208256 |
Toner for image formation, method of producing the toner, toner container, toner cartridge, process cartridge, and image forming apparatus
A toner for image formation is provided, which is produced by dispersing in an aqueous solvent a toner composition which includes a composition thermally soluble in an organic solvent and a...
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7208253 |
Toner composition
A toner containing a mixture of a sulfopolyester resin, a colorant and an alkyl amide.
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7205357 |
Polyester resin composition for toner
A polyester resin composition for a toner comprising a titanium compound in an amount of from 0.005 to 4% by weight, and an inorganic phosphorus compound in an amount of from 0.001 to 5% by weight;...
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7198874 |
Toner, method of making, method of using
The present invention relates to a toner useful, for example, for visualizing an electrostatic latent image formed on an image bearing member by a method such as electrophotography and...
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