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8178271 |
Polymer having a sulfonic group or a sulfonate group and an amide group and method of producing same
A polymer is provided in which a sulfonic group or a derivative thereof is introduced. The polymer includes a unit represented by the following chemical formula (1): wherein R represents -A1-SO2R1;...
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8178270 |
Toner for development of electrostatic image
A toner for development of electrostatic images, comprising colored resin particles containing a binder resin and a colorant, and an external additive, wherein the external additive contains fine...
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8178274 |
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...
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8163450 |
Toner, and image forming apparatus and image forming method using the toner
A toner including toner particles; and external additives including a fatty acid metal salt having an average primary particle diameter of from 0.5 to 1.5 μm; a positively chargeable particulate ...
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8137880 |
Colored toners
The present disclosure provides blue toners and methods for their production. In embodiments, methods of the present disclosure include systems which may be utilized to predict the color properties...
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8133647 |
Black toners containing infrared transmissive
A toner formulation is disclosed comprising a binder, an IR absorbing colorant, and one or more infrared transmissive colorants, wherein the colorants are configured to provide a low reflectivity...
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8126369 |
Image forming apparatus and process cartridge
The invention provides an image forming apparatus, comprising: an electrophotographic photoreceptor, a charging unit, an exposure unit, a developing unit, a transfer unit, a fixing unit, and a...
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8110329 |
Charge controlling agent and toner
A charge controlling agent is provided as a compound in which an amide group is introduced together with a sulfonic group or a derivative thereof. The charge controlling agent is characterized by...
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8101328 |
Charge control agents for toner compositions
The present disclosure provides polymer-ionic complexes useful as charge control agents. Such charge control agents may be utilized with toner particles to impart excellent triboelectric charging...
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8097390 |
Electrophotographic toner, invisible electrophotographic toner, electrophotographic developer, toner cartridge, process cartridge, and image formation apparatus
The invention provides an electrophotographic toner containing at least a binder resin and an infrared absorber, the infrared absorber comprising a perimidine-squarylium dye represented by the...
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8097389 |
Color toner for flash fusing, method for producing the same, and electrostatic image developer, process cartridge, and image forming apparatus using the same
The invention provides a color toner for flash fusing containing at least: a binder resin, a colorant, a leuco dye, a developer and a decolorizer. An absorbance of the color toner after...
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8071268 |
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...
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8071267 |
Phenol polysulfide hole blocking layer photoconductors
A photoconductor that includes, for example, a substrate, an optional ground plane layer, an undercoat layer thereover wherein the undercoat layer contains an aminosilane and a phenol polysulfide,...
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8067136 |
Charge control agent, toner, image forming method, and image forming apparatus
To provide: a charge control agent having negative chargeability, which contributes to environmental conservation and the like to an increased degree, has high performance (high charge amount,...
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8067140 |
Toner for developing electrostatic image and method of producing the same
A toner for developing electrostatic image which has a reduced residual amount of a decomposed product of a polymerization initiator remaining in the toner upon production (mainly an ether...
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8062819 |
Magenta toner for developing electrostatic image
A magenta toner for developing an electrostatic image composed of a binder and a colorant is disclosed. The toner contains a tone controlling agent having a peak of fluorescent spectrum from 380 to...
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8012659 |
Image forming apparatus, toner, and process cartridge
An image forming apparatus including a fixing device to fix a toner image on a recording medium including a heat roller and an oil applicator to apply a silicone oil to the heat roller, having a...
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7998647 |
Electrostatic image developing toner, electrostatic image developer, image forming method, image forming apparatus and printed matter
An electrostatic image developing toner comprising an amide ester represented by formula (1): wherein R1CO— and R2CO— each independently represents a saturated or unsaturated acyl group having a c...
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7955773 |
Toner for developing electrostatic image, developer for developing electrostatic image, toner cartridge, process cartridge, and image forming apparatus
A toner for developing an electrostatic image includes a toner particle to which particles of an external additive A having a number average particle diameter of from 7 nm to 200 nm and particles...
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7943280 |
Toner containing a laminar inorganic mineral in which part or all of the ions present between layers are modified by organic ions
A toner containing a colorant, a binder resin and a laminar inorganic mineral in which part or all of the ions present between layers are modified by organic ions. The toner can be prepared by a...
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7892344 |
P.R. 254 pigment preparation for use in color filters
The invention provides a pigment preparation comprising (a) C.I. Pigment Red 254 with an average particle size d50 of not more than 100 nm;(b) 0.1% to 30% by weight, based on the weight of the PR...
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7842445 |
Secure imaging toner and methods of forming and using the same
A toner for printing documents that are difficult to chemically or physically forge and that are readily easy to visually verify and methods of using and forming the toner are disclosed. The toner...
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7833684 |
Toner compositions
A toner having charge control agents which impart excellent triboelectric charging characteristics.
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7833343 |
Universal stir-in pigments
The invention relates to a pigment preparation containing (a) 50-99 percent by weight of at least one pigment, (b) 1 to 50 percent by weight of an additive based on polyalkylene glycols, and (c) 0...
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7759035 |
Electrostatic charge image developing toner and image forming method
An object is to provide an electrostatic charge image developing toner and an image forming method using the same capable of maintaining image properties for a long duration, which exhibit not only...
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7704660 |
Developer for electronic printing, and process for producing glass plate having electric conductor pattern
To provide a process for producing a glass plate having an electric conductor pattern excellent in adhesion to the surface of the glass plate, whereby it is not required to have a screen ready for...
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7695880 |
Toner, electrophotographic apparatus and process cartridge
A toner, and an electrophotographic apparatus and an electrophotographic process cartridge using the toner are provided having excellent charge stability without adversely affecting electric...
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7678521 |
Electrophotographic toner and image forming apparatus
There are disclosed an electrophotographic toner including a compound represented by formula (1) and a compound represented by formula (2). In Formula (1), R1, R2, R3, and R4 each independently...
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7648812 |
Toner, developer, and image forming apparatus
A toner is provided including a binder resin; a release agent; a colorant; and a fatty acid amide compound, wherein the binder resin includes: an amorphous polyester (A) having a softening point of...
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7611812 |
Use of salts of layered double hydroxides as charge control agents
Layered double hydroxide salts as charge control agents in electrophotographic toners and developers, in powder coating materials, electret materials and in electrostatic separation processes of...
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7595138 |
Toner, two-component developer, and image forming method
A toner of the present invention is a toner comprising an additive and a toner matrix that contains a binder resin, a colorant, and a wax, in which the additive contains an inorganic micropowder to...
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7572563 |
Toner for electrostatic image development
A toner for electrostatic image development containing a resin binder, a charge control agent, and a colorant, and wherein the charge control agent contains a metal complex of a salicylic acid...
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7553600 |
Method for producing toner and positively chargeable non-magnetic single component toner
Methods are described for rendering toner particles that are capable of being sufficiently and uniformly charged. The particles may be positively chargeable, non-magnetic, single component toner...
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7550241 |
Positive chargeable magnetic toner composition
The present invention relates to a magnetic mono-component toner composition with positive charge comprising i) a magnetic toner particle containing a charge control agent with positive charge; ii)...
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7547498 |
Toner for developing electrostatic latent images and a production method for the same
A toner for developing electrostatic images which contains an external additive A containing an irregular-shaped metal oxide and having an average value of the feret's horizontal diameter of from...
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7547497 |
Toner, and developer, image developer and image forming apparatus using the toner
A toner which is negatively charged to develop an electrostatic latent image is provided that contains a colorant; and a binder resin, wherein the toner has an acid value of from 5 to 20 mg KOH/g...
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7498112 |
Emulsion/aggregation toners having novel dye complexes
Disclosed is a toner particle having at least binder and colorant. The colorant is a dye complex comprising a dye, a nonionic surfactant and a complexing agent. The toner having this colorant...
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7498123 |
Infrared dye compositions
Disclosed are novel aminium, diimonium, and polymethine borate dyes that have at least one absorption maximum in the infrared spectral region between about 700 and 2000 nm and that are useful as...
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7442480 |
Positively chargeable toner
A positively chargeable toner comprising a resin binder, a specified compound represented by the formula (I), and a higher fatty acid with a long-chain alkyl group having 8 to 22 carbon atoms...
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7416601 |
Black perylene pigments
Black perylene pigments which comprise one of the isomers of the formula Ia or Ib in which R1, R2 are each independently phenylene, naphthylene or pyridylene, each of which may be mono- or...
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7387670 |
Pigment preparations based on phthalocyanine pigments
A pigment preparation comprising at least one copper phthalocyanine pigment from the group of C.I. Pigment Blue 15, 15:0, 15:1,15:2, 15:3, 15:4, and 15:6, and at least one pigment dispersant of the...
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7384472 |
Pigment preparations based on PY 155
The invention concerns a pigment preparation based on C.I. Pigment Yellow 155, containing 0.1% to 50% by weight, based on the weight of C.I. Pigment Yellow 155, of at least one pigment dispersant...
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7344813 |
Emulsion aggregation toner having gloss enhancement and toner release
A toner includes particles of a resin, an optional colorant, a first wax and a second wax, where the toner particles are prepared by an emulsion aggregation process. Additional waxes can also be...
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7326507 |
Preparation of a toner for reproducing a metallic hue and the toner
The present invention relates to a toner and process for preparing a toner for reproduction of a metallic, preferably golden or silvery, hue by a printing process, especially for...
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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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7303846 |
Electrophotographic toner, process for producing the same, and process for forming image
An electrophotographic toner contains at least a binder resin and a colorant, and log10{[Cu]/[C]} satisfies the following equation (1): −5.0≦log10{[Cu]/[C]}≦−3.5 (1) in which, [C] represe...
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7208254 |
Binding resin for toner, toner and electrophotographic apparatus
In an electrophotographic apparatus, which forms a color image by transferring a plurality of toner images having different colors onto an image-receiving sheet so as to be stacked and fixed...
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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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7183031 |
Positively charged coated electrographic toner particles
Positively charged coated toner particles are provided that comprise a plurality of polymeric binder particles that are substantially free of positively charged pigment and a coating material...
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7175959 |
Toner and production process for the same
A toner including core particles containing at least a resin and a colorant and coated with a resin coating layer is provided. The core particles are formed by flocculating and fusion-bonding at...
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