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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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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.
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...
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...
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,...
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...
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...
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...
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)...
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...
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...
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...
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...
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...
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...
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,...
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...
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...
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...
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...
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...
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...
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...
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...
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)...
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...
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...
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...
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...
7214458 Toner compositions  
A toner that contains resin, colorant, wax and an aromatic hydrocarbon compatibilizer.
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...
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...
7208253 Toner composition  
A toner containing a mixture of a sulfopolyester resin, a colorant and an alkyl amide.
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;...
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...