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WO/2011/083970A2 |
Disclosed are a toner used in an electronic photocopying process or static printing process, and a polyester resin comprised as a binder in the toner. The polyester resin contains lactic acid (D- or L-lactic acid) or a lactide (D- or L-l...
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WO/2011/082556A1 |
The invention discloses a method for producing electrostatic image developing toner. The method comprises: agglutinating resin particles in aqueous medium to produce electrostatic image developing toner including resin, colorants and wax...
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WO/2011/083969A2 |
Disclosed is a toner for use in an electronic photograph-duplicating process or in an electrostatic printing process, and a polyester resin included in the toner as a binder. The polyester resin comprises lactic acids (D or L-lactic acid...
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WO/2011/078163A1 |
Disclosed is an asymmetrical polyazo dye obtained by linking a monoazo dye residue (A) and a different monoazo dye residue (B) via an allylene poly(carboxamide) group. The asymmetrical polyazo dye is characterized in that each monoazo dy...
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WO/2011/078224A1 |
Disclosed are: a binder for a toner, which is used for a toner that exhibits high print density after toner fixation and excellent fixability at low temperatures, thereby being suitable for high-speed printing and capable of reducing the...
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WO/2011/078410A1 |
The invention provides a process for producing a toner for electrophotography including the following (1) to (4): (1): adding an aggregating agent to a resin particle dispersion (a) so as to attain an aggregating agent concentration Ea (...
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WO/2011/074580A1 |
Disclosed are: a toner for electrophotography, which has excellent storage stability and excellent fixability including fixability at low temperatures and hot offset resistance; and a method for producing the toner for electrophotography...
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WO/2011/074899A2 |
Disclosed is a toner manufacturing method. Excellent toner particles are manufactured by using a wax which is encapsulated with a mini emulsion made by polymerization of a styrene - alkyl acrylate resin, which show excellent storage stab...
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WO/2011/074060A1 |
Disclosed is a toner which has a good balance between transfer efficiency and cleaning performance, excellent stress resistance, and a good balance between low-temperature fixing properties and fixed winding properties. Specifically disc...
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WO/2011/074901A2 |
The present invention provides a toner having excellent cleaning and glossing properties. The toner comprises: toner particles with size and distribution which satisfy the conditions of the following equations (1) and (2): (1) 50℃ ≤ ...
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WO/2011/074900A2 |
The present invention provides a high transcription efficiency toner which reduces toner consumption since less toner is used. The toner comprises: toner particles with size and distribution which satisfy the conditions of the following ...
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WO/2011/074674A1 |
A process for producing an electrophotographic toner, comprising: (step 1) maintaining a dispersion of resin particles (A) that comprise a resin comprising 1 to 50 wt% of a crystalline polyester (a1) and an amorphous polyester (b1) and h...
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WO/2011/074902A2 |
Disclosed is a method for manufacturing toner. The manufacturing method of the present invention, comprises a toner particle aggregation step in which a first coagulant with metal salts is used, which provides toner particles with narrow...
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WO/2011/019180A3 |
The present invention relates to an electrostatic image-developing toner which contains binding resin, a coloring agent, and a releasing agent, as well as to a toner composition and to a method for producing the toner composition. The el...
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WO/2010/065075A8 |
A chemical toner is described as well as methods of preparing the same.
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WO/2011/068240A1 |
An electrostatic image developing toner including: a binder resin; a colorant; and a wax, wherein the intensity ratio of an absorbance at 2,850 cm -1 derived from the wax to an absorbance at 828 cm -1derived from the binder resin, repres...
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WO/2011/061917A1 |
Disclosed is a binder resin for a toner, which contains at least a carboxyl group-containing vinyl resin (C), a glycidyl group-containing vinyl resin (E), a reaction product of the vinyl resins, and a crystalline saturated polyester (S)....
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WO/2011/062086A1 |
Disclosed is a toner set for electrophotography, which has good color reproducibility from the low brightness part to the high brightness part in an intermediate color (red) region. Specifically disclosed is a toner set for electrophotog...
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WO/2011/062289A1 |
To obtain a resin for toners, or a toner, which is superior in the quickness in its rise of charging to a sufficient charge quantity in a short time, in the stability of charging that extends from the initial stage up to the printing on ...
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WO/2011/058652A1 |
Provided is a thermochromic color-memorization type toner having a function whereby the image formed on a copy can be kept either at a color-developed state or at a decolored state. Disclosed is a thermochromic color-memorization type to...
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WO/2011/023783A3 |
The present invention relates to a method for preparing a silica particle including at least one phthalocyanine derivative, said particle being prepared from at least one silicon phthalocyanine derivative via reverse microemulsion, to sa...
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WO/2011/055647A1 |
A toner for electrophotography characterized in that, when a monochromatic image of the toner for electrophotography is formed and the reflection absorption spectrum thereof is measured, said reflection absorption spectrum shows a maximu...
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WO/2011/050605A1 |
A colorful carbon powder and a preparation method thereof are provided. The method involves agglutinating anionic compound emulsion containing wax polymer (Ａ) and cationic compound emulsion containing colorant polymer（B）. The anion...
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WO/2011/053014A2 |
The present invention relates to a production method for polymerised toner, and more particularly relates to a production method for toner comprising the steps of: forming an aqueous dispersion medium containing calcium phosphate; formin...
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WO/2011/052043A1 |
Provided is a toner that has excellent electrostatic properties independent of the environment and achieves high image quality over a long period of time. Said toner contains: toner particles that contain at least a binder resin, a color...
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WO/2011/052794A1 |
A toner including a binder resin, a colorant and protruding portions on a surface of the toner, wherein the average length of long sides of the protruding portions is 0.1 μm or greater, but less than 0.5 μm, wherein the standard deviat...
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WO/2011/049404A2 |
The present invention relates to a polyester resin produced by adding an anti-hydrolysis agent to reactants comprising acids selected from alkylester of aromatic dibasic acid or a mixture of alkylester of aromatic dibasic ester and alkyl...
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WO/2011/042120A1 |
The invention relates to a solid pigment preparation comprising A) 5 to 99 % by weight of PY 155 and B) 1 to 95 % by weight of a co-polymer, comprising the following structural units: (i) 1 to 70 mol-% of structural unit B1; (ii) 1 to 70...
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WO/2010/147647A3 |
The present invention relates to chemical toner compositions comprising a resin and a polymer modified pigment comprising a pigment having attached at least one polymeric group. The polymer modified pigment comprises the reaction product...
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WO/2011/043257A1 |
Disclosed are: a polyester resin for a toner, which is obtained by condensation polymerizing a carboxylic acid component and an alcohol component, and which is characterized in that a specific aromatic compound is used as the carboxylic ...
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WO/2011/040570A1 |
Disclosed are a binder resin for toners which is obtained by condensation-polymerizing a carboxylic acid ingredient with an alcohol ingredient in the presence of a lignin compound, an electrophotographic toner containing the binder resin...
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WO/2011/040288A1 |
The disclosed method for producing a polymerized toner contains a polymerization step wherein a polymerizable monomer composition containing either (a) a radical-polymerizable monomer and (b) a compound represented by formula (1), or (a)...
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WO/2011/040569A1 |
Disclosed is a polyester for a toner obtained by the condensation polymerization reaction of an aliphatic hydroxycarboxylic acid compound in which the sum of the number of hydroxy groups and the number of carboxyl groups is 4 or more, an...
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WO/2011/037446A1 |
A natural oil-based toner resin for producing toner in developing electrophotographic image comprising a copolymer of unsaturated polyester resins and vinyl monomers, wherein the polyester resins have a molecular weight of 500 to 30000 a...
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WO/2011/034063A1 |
Provided is a toner image fixation method whereby the energy used in a fixation step in an electrophotographic image-forming device is reduced. An unfixed toner image formed on a recording medium is coated with a photopolymerizable compo...
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WO/2010/147385A3 |
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...
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WO/2011/025508A1 |
Liquid marking agent development assemblies, hard imaging devices, and liquid marking agent hard imaging methods are described. According to one aspect, a liquid marking agent development assembly includes a developer member comprising a...
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WO/2011/023783A2 |
The present invention relates to a method for preparing a silica particle including at least one phthalocyanine derivative, said particle being prepared from at least one silicon phthalocyanine derivative via reverse microemulsion, to sa...
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WO/2011/021675A1 |
Disclosed is a process for producing a toner, having an agglomeration step of agglomerating first resin particles and colorant particles in an aqueous medium to form an agglomerate; a primary fusion step of heating a water base dispersio...
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WO/2011/021722A1 |
To provide an apparatus for producing a toner, including: a droplet forming unit configured to periodically discharge a toner composition liquid, which includes at least a resin and a colorant, from a plurality of nozzles so as to form d...
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WO/2011/019180A2 |
The present invention relates to an electrostatic image-developing toner which contains binding resin, a coloring agent, and a releasing agent, as well as to a toner composition and to a method for producing the toner composition. The el...
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WO/2011/016519A1 |
Disclosed is a negatively charged polymerized toner which utilizes a charge control agent that contains a cyclic phenol sulfide as an active ingredient, is particularly useful for a color toner and also useful for a polymerized toner, ca...
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WO/2010/005492A8 |
Treated metal oxide particles include metal oxide particles treated with at least a charge modifying agent. The charge modifying agent is represented by the following formula: An-Zc-Yb-Ar(EW)a, wherein Ar represents an aromatic group, EW...
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WO/2011/010509A1 |
Disclosed is a toner for electrophotography, which has good hue, good light resistance and good electrostatic charge, and is capable of providing images that are free from white spots. The toner for electrophotography exhibits a good per...
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WO/2011/007731A1 |
Disclosed is a surface-modified metal oxide powder obtained by subjecting a metal oxide powder to a surface treatment, characterized in that the ratio of the initial frictional charge (A) measured at 1 minute after the powder is disperse...
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WO/2011/003898A1 |
The present invention relates to a polycarbonate of number average molecular weight from 500 to 10000, glass transition point from 30 to 80°C and hydroxyl group value of 30 mg KOH/g or less and the use of said polycarbonate in a urethan...
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WO/2011/001199A1 |
A marking agent concentration method includes concentrating the marking agent by removing at least some liquid carrier between particles without substantially removing retained liquid carrier within the particles and without substantiall...
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WO/2011/001940A1 |
Provided is an electrophotographic developer carrier core material, said carrier core material containing a soft ferrite represented by (MgXMn1 − X)Fe2O4 (with X satisfying 0.1 ≤ X < 1) or a soft ferrite represented by (MgYFe3 − Y)...
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WO/2010/120060A3 |
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...
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WO/2010/147119A1 |
Disclosed is a magnetic carrier for an electrophotograph-developing agent, which comprises spherical complex particles each comprising: a spherical complex core particle comprising at least a ferromagnetic iron oxide iron microparticle a...
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