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Class 430/137.17 - Two-phase polymerization (e.g., oil-water)


Subclass of Class 430 - Radiation imagery chemistry: process, composition, or product thereof
Definition: Subject matter wherein polymerization takes place in a two
No. of patents: 243
Last issue date: 05/29/2012


1              
NumberTitleIssue Date
8187785Method of manufacturing toner
A method of manufacturing the toner comprising dispersing at least one of a binder resin or a precursor thereof, a coloring agent and a releasing agent in an organic solvent to obtain an oil phase, dispersing the oil phase in an aqueous medium with a shearing force ...
05/29/2012
8142976Method for preparing multiple emulsion and porous polymer particles therefrom
A method of manufacturing a double emulsion with narrow dispersed phase particle size distribution comprising: providing an organic phase comprising solid hydrocolloid particles dispersed in an organic solvent; and dispersing the organic phase in an aqueous phase in...
03/27/2012
8092974Production method of toner for developing electrostatic image
A production method of a toner includes a suspension process in which a polymerizable monomer composition is dispersed in an aqueous dispersion medium; and a polymerization process in which suspension polymerization is performed with the suspension in the presence o...
01/10/2012
8092975Method for producing toner for devoloping electrostatic image
Provided is a method for producing a toner for developing electrostatic image which inhibits the generation of small diameter microparticles as a by-product in the polymerization for the toner, which includes easy or simple washing treatment (washing/filtration/dehy...
01/10/2012
7906266Magnetic toner
A magnetic toner is disclosed including magnetic toner particles containing at least a binder resin and a magnetic powder. The magnetic powder contains a specific amount of phosphorus elements, and a specific amount of silicon elements, based on the iron element, wi...
03/15/2011
7842449Method of preparing toner and toner prepared using the method
A method of preparing a toner includes: preparing a toner composition including a macromonomer having a hydrophilic group, a hydrophobic group and at least one reactive functional group, at least one polymerizable monomer, and a colorant; emulsion-polymerizing the t...
11/30/2010
7767375Production process of polymerized toner
In a process for producing a polymerized toner, comprising Step 1 of preparing a polymerizable monomer composition and Step 2 of polymerizing the polymerizable monomer composition with a polymerization initiator to form colored polymer particles, Step 1 comprises St...
08/03/2010
7749675Method of preparing toner and toner prepared using the method
A method of preparing a toner, including: preparing a colorant dispersion by mixing a reactive emulsifier and a colorant; preparing a toner composition by mixing a macromonomer including a hydrophilic group, a hydrophobic group and at least one reactive functional g...
07/06/2010
7727700Toner for developing electrostatic image, method for producing the same, developer, image forming apparatus, process cartridge, and image forming method
A toner is disclosed, for developing electrostatic images by means of image forming apparatuses, that comprises toner particles, and an external additive, wherein the toner particles comprise a binder resin and a colorant, the external additive is introduced onto th...
06/01/2010
7682768Production process of polymerized toner
A process for producing a polymerized toner, comprising the step of polymerizing a polymerizable monomer composition containing a polymerizable monomer and a colorant in the presence of a polymerization initiator in an aqueous dispersion medium to form colored polym...
03/23/2010
7682769Method of manufacturing toner, toner, and image forming method
Disclosed is a method of manufacturing toner possessing the steps of conducting a polymerization process for acquiring wax-containing polyester resin particles via condensation-polymerization of carboxylic acid and alcohol employing oil droplets after forming the oi...
03/23/2010
7666566Electrophotographic toner and method of preparing the toner
A method of preparing a toner in an aqueous medium, including: preparing a dispersion or an emulsion of a toner composition comprising a resin including a carboxyl group and a colorant; and mixing an aromatic compo...
02/23/2010
7662536Resin particle liquid dispersion for electrostatic image developing toner, production process of the liquid dispersion, electrostatic image developing toner, production process of the toner, electrostatic image developer and image forming method
A resin particle liquid dispersion for an electrostatic image developing toner includes: a polycondensable resin obtained by polycondensing at least one selected from the group consisting of a polycondensable monomer, an oligomer of the polycondensable monomer and a...
02/16/2010
7550245Toner and production method of the same, and image forming method
The object of the present invention is to provide a toner having a uniform composition of toner materials among toner particles, excelling in charge stability, enabling high-quality images without substantially causing fog and toner scattering, and having a small di...
06/23/2009
7371494Magnetic toner and method of manufacturing magnetic toner
The present invention provides a magnetic toner which is hardly influenced by an environment, and with which an image with high quality and excellent resolution can be stably even under low humidity. In the magnetic toner of present invention: ...
05/13/2008
7368212Toner for developing electrostatic image, developer, image forming apparatus, process for forming image, process cartridge and process for measuring porosity of toner
A toner for developing an electrostatic image, includes: a colorant; and a binder resin. The toner has a particle including at least one pore having a diameter of 10 nm or over, and a porosity thereof is in a range from 0.01 to 0.60. ...
05/06/2008
7354972Amphipathic polymer particles and methods of manufacturing the same
The invention is directed to amphipathic polymeric particles that serve as both the dispersant and the binder in water based inks, ink compositions containing these particles, and methods for making the particles. The polymeric particles contain both hydrophilic and...
04/08/2008
7344818Method for producing toner and an image forming method employing the toner
A method for producing a toner comprising the step of coagulating at least one crystalline ester compound represented by Formula 1 and resin particles in an aqueous medium in the presence of and aluminum compound. R1—(OCO—R2)...
03/18/2008
7344819Manufacturing method for a toner
A method for manufacturing toner includes combining a polymer resin and an organic solvent to obtain an oil-based solvent; combining a dispersion stabilizer with water to obtain a water-based solvent; adding an amphiphilic solvent to the water-based solvent; emulsif...
03/18/2008
7300737Process for producing toner
The present invention provides a toner that exhibits excellent low-temperature fixing properties, offset resistance, and has excellent storage stability in a developing machine. The toner has, in a DSC curve obtained by measuring the toner with differential scanning...
11/27/2007
7294443Toner composition and method for manufacturing the toner composition
A toner composition including toner particles including a binder resin; and a colorant, and a charge controlling agent which is at least located on a surface of the toner particles, wherein the toner composition has a spherical degree of from 0.96 to 0.99, and where...
11/13/2007
7288357Cyan toner and method of producing cyan toner
A cyan toner is provided which is brighter and more greenish in hue than conventional cyan toners and highly translucency. A cyan toner characterized by comprising toner particles at least having a coloring compound represented by the Formula (1): ...
10/30/2007
7282552Styrene copolymers with a bimodal molecular weight distribution
A styrene copolymer composition comprising at least one alkyl acrylate and/or at least one alkyl methacrylate wherein the styrene copolymer composition has a bimodal molecular weight distribution. A method of producing a styrene copolymer comprising reacting styrene...
10/16/2007
7261989Toner for developing electrostatic images, developer, image forming method, and image forming apparatus
The object of the present invention is to provide a toner which has sufficiently high chargeability and less toner spent to a carrier or the like even when several tens of thousands of image sheets are output, is capable of keeping high-charge property and flowabili...
08/28/2007
7258959Toner 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, developing units, a photoconductor, and an intermediate transferring member by...
08/21/2007
7258956Printing plates comprising modified pigment products
The present invention discloses printing plates comprising a substrate and a radiation-absorptive layer, wherein the radiation-absorptive layer comprises at least one modified pigment product. The modified pigment product comprises a pigment having attached at least...
08/21/2007
7255895Method for controlling solute loading of polymer microparticles
Solute-loaded polymer microparticles are obtained by immersing microparticles in a bath comprising a selected solute dissolved in a ternary solvent system. A first solvent of the ternary system is a strong solvent for both the solute and the polymer from which the m...
08/14/2007
7253216Microencapsulated pigment, production process therefor, and aqueous dispersion and ink jet recording ink using the pigment
The present invention provides a microencapsulated pigment, wherein pigment particles having an anionic group on the surface are coated with a polymer comprising a repeating structural unit derived from a cationically polymerizable surface active agent and a repeati...
08/07/2007
7252920Method for manufacturing polymerized toner
A method for manufacturing a polymerized toner comprising a process for forming fine droplets of a polymerizable monomer composition in an aqueous dispersion medium, and a process for polymerizing the polymerizable monomer composition after the process for forming f...
08/07/2007
7250238Toners and processes thereof
Disclosed are toner compositions comprised of a polymer, an optional colorant, and an UV light curable oligomer. Also disclosed are methods for producing a UV curable toner compositions, the toner compositions produced thereby, and methods of utilizing the UV curabl...
07/31/2007
7247416Toner processes and compositions thereof
The invention relates to color toner compositions prepared from a process for the preparation of a dry toner powder from an aqueous pigment concentrate dispersion comprising: blending at least an aqueous-based pigment concentrate dispersion and a resin to produce a ...
07/24/2007
7244540Liquid toners comprising amphipathic copolymeric binder having insoluble components in the shell portion thereof
The invention provides liquid electrographic toner compositions comprising a liquid carrier having toner particles dispersed in the liquid carrier. The liquid carrier has a Kauri-Butanol number less than about 30 mL. The toner particles comprise polymeric binder com...
07/17/2007
7241546Toner, and image forming method
A toner includes toner particles containing at least a binder resin and a colorant, and inorganic fine particles. The shape factor SF-1 of the toner particles is in a specific range. The toner has a storage elastic modulus at 140° C., G′ (140° C.), in a specific...
07/10/2007
7226714Process for producing polymerized toner
A process for producing a polymerized toner, comprising a step 1 of preparing a polymerizable monomer composition comprising at least a polymerizable monomer and a colorant, and a step 2 of polymerizing the polymerizable monomer composition in an aqueous medium to f...
06/05/2007
7208221Biocomposites sheet molding and methods of making those
A Sheet Molding Compound (SMC) as prepregs and cured compositions with naturally derived fibers which have been dried for at least three hours is described. The SMC process combines polyester polymer or resin with the fibers preferably continuously. The molded produ...
04/24/2007
7208256Toner 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 coloring agent, thereby forming toner particles, wherein the thermally solub...
04/24/2007
7166655Colored particulate dispersion, ink for ink-jet recording using the same, and ink-jet recording method
A colored particulate dispersion is provided, in which the particle diameter of colored particulates is small and dispersion stability is excellent. Also provided is an ink for ink-jet recording in which there is little dependency on paper such that excellent color ...
01/23/2007
7163775Toner 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 react with a compound having an active hydrogen in an amount of 2 piece...
01/16/2007
7153625Process for producing toner particles, and toner
In a process for producing toner particles by dispersing in an aqueous medium a polymerizable monomer composition containing at least a polymerizable monomer and a colorant and carrying out polymerization by the use of a polymerization initiator, the concentration o...
12/26/2006
7147979Toner for developing electrostatic image
A toner for developing an electrostatic image, comprising, a binder resin, a colorant, a charge control agent, and a parting agent, and wherein: a volume average particle diameter (Dv) of toner particles is 3 to 10 μm; a ratio (Dv/Dp) of Dv to a number average part...
12/12/2006
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