| Patent application number | Description | Published |
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| 20090004588 | Photoconductor structure processing methods and imaging device photoconductor structures - Photoconductor structure processing methods and imaging device photoconductor structures are described. According to one embodiment, a photoconductor structure processing method includes processing a photoconductor structure of an imaging device and wherein the photoconductor structure comprises charge transport material configured to conduct electrical charges generated responsive to reception of light to form a latent image during an electro-photographic imaging process, the processing comprising removing at least some of the charge transport material from at least a portion of the photoconductor structure. The photoconductor structure may also be further treated to reduce the migration of charge transport material. Additional embodiments are described in the disclosure. | 01-01-2009 |
| 20100328411 | PRINTING ON VINYL PRINT MEDIA - A system and method of ink-jet printing on vinyl print media can comprise jetting an ink-jet ink onto a vinyl print medium to form a printed image, and applying from 50-100° C. of heat to the printed image. The ink-jet ink can include a colorant, an aqueous liquid vehicle, and core-shell polymer particles. Upon printing and heating, at least a portion of the aqueous liquid vehicle evaporates, the vinyl print medium plasticizes (but does not flow), and the ink-jet ink flows. The fused polymer particles form a film that encapsulates at least a portion of the colorant. | 12-30-2010 |
| 20110020036 | Liquid Electrophotographic Printer - The present disclosure is drawn to apparatuses, methods, and systems involving liquid electrophotographic printing. Generally, a liquid electrophotographic printer can comprise an ink application device that is configured to apply liquid electrophotographic ink to a substrate, and a roller having a tacky surface that removes excess material from the surface of the substrate thereby pretreating the substrate prior to receiving the liquid electrophotographic ink. | 01-27-2011 |
| 20110079756 | POLYMER-ENCAPSULATED NANOPARTICLE SYSTEMS - A polymer-encapsulated nanoparticle system includes a non-aqueous medium; and polymer-encapsulated nanoparticles formed in situ in the non-aqueous medium. Each polymer-encapsulated particle has a diameter that is less than 1 micron, and includes a solid particle core, and a polymer coating established directly on the solid particle core. | 04-07-2011 |
| 20110082235 | METHOD OF MAKING A PIGMENT DISPERSION - A method for making a pigment dispersion can include dispersing pigment particles in an aqueous liquid medium to form a dispersion, adding a first monomer to form a dispersive coating on the pigment particles, adding a second monomer to the dispersion, and forming a polymer coating on the surface of the pigment particles by polymerizing the second monomer with the first monomer, wherein the polymer coating includes at least one urethane linkage or urea linkage. | 04-07-2011 |
| 20110104409 | INKJET PRINT MEDIA - An inkjet print medium includes a base substrate, a layer of a deinking solution at least partially diffused into the base substrate, and an ink-receiving layer established on the layer of the deinking solution. The deinking solution includes a flocculant in an amount ranging from about 0.1 wt. % to about 40 wt. % of a total wt. % of the deinking solution. | 05-05-2011 |
| 20110105643 | POLYMER-ENCAPSULATED NANOPARTICLES - A polymer-encapsulated nanoparticle is disclosed herein. The polymer-encapsulated colorant nanoparticle includes a colorant nanoparticle core, and a polymer coating permanently established on the colorant nanoparticle core via covalent bonding or physical bonding, the polymer coating including in situ polymerized monomers or prepolymers of a discontinuous phase of an inverse emulsion. The polymer-encapsulated colorant nanoparticle has a size ranging from about 20 nm to about 1000 nm. | 05-05-2011 |
| 20110184095 | LIGHT FAST ENCAPSULATED PIGMENT - A light fast encapsulated pigment includes an inner core region that includes a pigment and an outer shell that includes a polymer comprising a UV absorber non-covalently incorporated therein. The light fast encapsulated pigment finds use in ink compositions. | 07-28-2011 |
| 20110184096 | COATED PIGMENT COMPOSITION - A polymer-coated pigment composition includes at least one organic pigment and a coating layer non-covalently attached to an outer surface of the organic pigment. The coating layer comprises at least one metal oxide or the metalloid oxide and a polymer attached to an outer surface of the metal oxide or metalloid oxide. A method of enhancing dispersibility of an organic pigment includes coating a surface of the organic pigment with the metal oxide or the metalloid oxide, or a combination thereof, and attaching the polymer to the metal oxide or the metalloid oxide, or the combination. An ink composition includes an ink vehicle and the polymer-coated pigment composition described above. | 07-28-2011 |
| 20110184111 | POLYMER-ENCAPSULATED PIGMENT - A polymer-encapsulated pigment and a method of modifying a pigment use functional groups of an interface layer to attach a polymer to a pigment composition. The polymer-encapsulated pigment includes a pigment composition, a polymer and an interface layer. In the polymer-encapsulated pigment and the method, the interface layer is covalently attached to an outer surface of the pigment composition. The polymer is attached to the interface layer with a linking group. The linking group is attached to the interface layer by a covalent bond of a functional group. The linking group includes a nucleophilic carbon atom to which the polymer is covalently attached. | 07-28-2011 |
| 20110242241 | INK COMPOSITION CONTAINING NON-VOC LIQUID CARRIER - Ink composition including non-VOC liquid carrier and method of making the same are disclosed. A disclosed example ink composition has a viscosity that is below about 70.0 cps and includes non-VOC liquid carrier, dispersing agents and pigment particles having an average size of less than about 10 μm. Also disclosed are method of use and method of making such ink composition containing non-VOC liquid carrier. | 10-06-2011 |
| 20110247522 | METHOD OF ADVANTAGEOUS MANIPULATION OF THE SOLID PIGMENT COLORS - A method is provided for adjusting the color associated with a pigment particle, to achieve a desired value of the L*a*b* color space associated with such pigment particle. The method comprises the step of reducing the amount of impurities vicinal to the pigment particle in order to achieve the desired L*a*b* color coordinate, or increasing the amount of impurities vicinal to the pigment particle in order to achieve the desired L*a*b* color coordinate. A pigment particle composition comprising pigment particles and impurities with a desired value of the L*a*b* color coordinate is also provided. | 10-13-2011 |
| 20110269901 | METHOD OF FORMING IONICALLY-CHARGED, ENCAPSULATED COLORANT NANOPARTICLES - A method of forming ionically-charged, colorant nanoparticles involves forming in-situ ionically-charged polyurethane monomers, and forming an emulsion including the ionically-charged polyurethane monomers and a colorant nanoparticle. The method further involves polymerizing or crosslinking the ionically-charged polyurethane monomers in the emulsion, where the polymerizing or crosslinking chemically attaches the ionically-charged polyurethane monomers to a surface of the colorant nanoparticle to form an ionically-charged encapsulation layer on the surface. | 11-03-2011 |
| 20120003008 | PHOTOCONDUCTOR FOR ELECTROPHOTOGRAPHY - A method for making a photoconductor for electrophotography can comprise depositing a charge generating layer on an electrode; depositing a charge transfer layer on the charge generating layer, where a plurality of charge transfer molecules are disposed within the charge transfer layer; depositing a film of non-conducting material onto the surface of the charge-transfer layer; heating the film and the surface to cause a subset of the charge transfer molecules to move into the non-conducting material, creating in the film a conducting sub-layer and an insulating sub-layer, where the insulating sub-layer is substantially free of charge transfer molecules. | 01-05-2012 |
| 20120004345 | POLYMER-ENCAPSULATED COLORANT NANOPARTICLES - A polymer-encapsulated colorant nanoparticle includes a colorant nanoparticle core, and a polymer coating established on the colorant nanoparticle core. A negatively chargeable functional group is present on a surface of the polymer-encapsulated colorant nanoparticle. | 01-05-2012 |
| 20120009516 | ELECTROPHOTOGRAPHIC INK - The present disclosure provides inks, systems, and methods directed towards dispersed pigments. In one embodiment, an electrophotographic ink can comprise an aliphatic solvent and a pigment having a surface comprising carbonyl groups stabilized by an amine dispersant having the structure: R | 01-12-2012 |
| 20120009517 | ELECTROPHOTOGRAPHIC INK - The present disclosure provides inks, systems, and methods directed towards polyurethane encapsulated pigments. In one embodiment, an electrophotographic ink can comprise an electrophotographic ink vehicle and a polyurethane encapsulated pigment. The polyurethane encapsulated pigment can comprise a pigment and a polyurethane, wherein the polyurethane fully encapsulates the pigment and forms the outer-surface of the polyurethane encapsulated pigment with a surface roughness of less than 100 nm. Additionally, the electrophotographic ink can have a residual monomer content of less than 0.01 wt % of the electrophotographic ink. | 01-12-2012 |
| 20120026238 | INKJET INK COMPOSITION INCLUDING LATEX POLYMERS - An inkjet ink composition includes latex polymer particles. The latex polymer particles are present in the ink composition in an amount ranging from about 0.5 wt % to about 40 wt %. The latex polymer particles have: a T | 02-02-2012 |
| 20120092412 | INK-JET INKS INCLUDING SELF CROSS-LINKABLE LATEX PARTICLES - The present disclosure includes compositions, methods, and systems including an ink-jet ink comprising a liquid vehicle, a colorant dispersed or dissolved in a liquid vehicle, and self cross-linkable latex particles dispersed in the liquid vehicle. The self cross-linkable latex particle can have at least 0.1 wt % of the self cross-linkable monomer on the surface of the self cross-linkable latex particle providing cross-linking sites on the surface of the self cross-linkable latex particle, and can form an intra- and inter-particle cross-linked latex polymer film after printing the ink-jet ink on a substrate and upon at least partial depletion of the liquid vehicle or a liquid vehicle component. | 04-19-2012 |
| 20120092427 | INK-JET OVERCOATS INCLUDING LATEX POLYMERS AND INORGANIC NANO PARTICLES - The present disclosure is drawn to a nanoparticle containing overcoat composition for use in ink jet printing. The composition can include a liquid vehicle and a composite latex particulate. The composite latex particulate can include inorganic nanoparticles at least partially encapsulated by a polymer. The inorganic nanoparticles can be silica, titania, alumina, zinc oxide, silicates, oxides of indium and tin, and combinations thereof. The inorganic nanoparticles can comprise from about 1 wt % to about 20 wt % of the composite latex particulate. The overcoat composition can be used to improve the properties of ink-jetted images. | 04-19-2012 |
| 20120103542 | INK DISPERSION - An ink dispersion includes an ink vehicle and a colorant dispersed in the ink vehicle. The ink vehicle includes a non-ionic surfactant and a solvent. The non-ionic surfactant has an HLB value ranges from about 5 to about 16, and is chosen from: i) a material represented by one of the formulas R | 05-03-2012 |
| 20120105554 | INK FORMING METHOD - An ink forming method involves preparing a deagglomerated ink or a modified deagglomerated ink. The deagglomerated ink or the modified deagglomerated ink includes at least deagglomerated colorant particles and a liquid component. The deagglomerated colorant particles are chosen from pigment particles each encapsulated with a dispersant. The colorant particles have a particle size ranging from about 50 nm to about 500 nm. Prior to shipping and/or storing the deagglomerated ink or the modified deagglomerated ink, a portion of the liquid component is removed to form a concentrated ink that has a nonvolatile solids content ranging from about 40 wt % to about 90 wt % of the concentrated ink. | 05-03-2012 |
| 20120116006 | Polymer Encapsulation Of Particles - Methods of encapsulating particles ( | 05-10-2012 |
| 20120129092 | ELECTRICALLY CHARGEABLE ENCAPSULATED PARTICLES - Methods of encapsulating particles ( | 05-24-2012 |
| 20120140008 | INK-JET INKS INCLUDING INTER-CROSSLINKABLE LATEX PARTICLES - The present disclosure includes compositions, methods, and systems having an ink-jet ink comprising a liquid vehicle, a colorant dispersed or dissolved in the liquid vehicle, inter-crosslinkable latex particles dispersed in the liquid vehicle, and an inter-particle crosslinker. The inter-crosslinkable latex particles can comprise at least one hydrophobic monomer; at least one acidic monomer; at least one inter-crosslinkable monomer including at least one keto group; the inter-crosslinkable monomer having the structure described in Formula 1. Additionally, the inter-crosslinkable latex particles can be intra-crosslinked forming an inter-particle crosslinked latex polymer film after printing and upon at least partial depletion of the liquid vehicle or liquid vehicle component. | 06-07-2012 |
| 20120147108 | INK-JET INK PRINTING SYSTEM AND METHOD - An ink-jet ink printing method and associated system can comprise a printer including an ink-jet ink. The ink comprises an aqueous liquid vehicle, 1 wt % to 5 wt % pigment, 1 wt % to 5 wt % acrylic polymer particles, 0.3 wt % to 3 wt % urethane polymer particles, and is formulated to print on a vinyl medium. The system also includes a heating device. Upon applying heat to the ink-jet ink printed on the vinyl medium, the polymer particles in the printed ink fuse, and form a film encapsulating at least a portion of the pigment on the vinyl print medium. | 06-14-2012 |
| 20120157608 | SURFACE MODIFICATION OF POLYMER PARTICLES - Methods of surface modification of polymer particle are useful in the development of marking fluids. The surface modification includes saponifying one or more acrylic ester groups on a surface of the polymer particle. | 06-21-2012 |
| 20120187346 | PROCESS FOR PRODUCING POSITIVELY CHARGED POLYMER ENCAPSULATED PARTICLES - A process for producing positively charged polymer encapsulated particles which have a size of less than 5 μm and which include a positively charged polymer shell surrounding a core of particle. The process includes the steps of, firstly, dispersing the core particles in an aqueous solution; adding a mixture of monomers either before or after the dispersion step; then, polymerizing the monomers in view of obtaining polymer encapsulated particles, wherein the polymer shell of the particle includes polymers or co-polymers that have a functional group FG. Finally, the process includes the step of dispersing the encapsulated particles with surfactants and charge directors in view of obtaining positively charged encapsulated particle dispersions. | 07-26-2012 |
| 20120232215 | SINGLE BATCH LATEX INK COMPOSITIONS AND METHODS - The present disclosure provides methods and composition directed to towards a single batch latex ink-jet ink. In one embodiment, a method of manufacturing a single batch latex ink-jet ink can comprise emulsifying a pigment and a monomer in a solvent, and polymerizing the monomer with a reaction condition sufficient to encapsulate the pigment and sufficient to form individual latex particulates thereby forming a single batch latex ink-jet ink. The ink can contain less than about 0.5 wt % of latex particulates having a diameter of 50 nm or less, can contain about 1 wt % to about 10 wt % of latex particulates having a diameter of about 100 nm to about 250 nm and can contain about 3 wt % to about 5 wt % of encapsulated pigment. | 09-13-2012 |
| 20120252960 | INK COMPOSITION AND METHOD OF PREPARING SAME - An ink composition includes a particulate pigment, a hydrocarbon vehicle, an organic polyamine and an organic polyacid. A ratio by weight percent of the organic polyamine to the organic polyacid in the hydrocarbon vehicle is sufficient to render a conductivity of the ink composition to equal to or less than 15 nanosiemens per centimeter. The ink composition is prepared by combining the particulate pigment with a composition that includes the hydrocarbon vehicle, the organic polyamine and the organic polyacid. The combination is subjected to conditions under which the particulate pigment becomes dispersed in the composition. | 10-04-2012 |
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| 20120043035 | RECORDING MATERIAL CONTAINING NONIONIC SURFACTANTS - A recording material, containing nonionic surfactants, including: a supporting substrate, a first bottom base coat applied to at least one surface of said substrate, and a second topcoat layer applied over said bottom base coat. The supporting substrate or the bottom base coat includes nonionic surfactants that have HLB values that are inferior to 15. Also disclosed is a method to deink printed waste papers wherein the waste papers contain recording materials, containing nonionic surfactants such as defined herein. | 02-23-2012 |
| 20120105525 | INKJET INK AND INTERMEDIATE TRANSFER MEDIUM FOR INKJET PRINTING - An inkjet ink ( | 05-03-2012 |
| 20120196222 | LIQUID ELECTROPHOTOGRAPHIC INK CONCENTRATES AND METHODS FOR PREPARING THE SAME - Liquid electrophotographic ink concentrates and methods of preparing the same are disclosed herein. An example of the method includes preparing a mixture of ink components using a first predetermined thermal profile. The ink components include a resin, a pigment, and a carrier. The method further includes preparing a microfluidizer with a composition at a temperature within a predetermined range and processing the mixture in the prepared microfluidizer to form the concentrate. Processing the mixture includes pressure-feeding the mixture into the prepared microfluidizer, passing the mixture through the prepared microfluidizer for a predetermined number of times, and utilizing a second predetermined thermal profile while passing the mixture through the prepared microfluidizer. A viscosity modifier is added to the mixture before and/or during the processing of the mixture. | 08-02-2012 |
| 20120199537 | APPARATUS, METHOD, AND SYSTEM FOR CONDUCTING SINGLE-PASS FILTRATION OF INK WASTE - An apparatus for conducting single-pass filtration of ink waste is disclosed. The apparatus includes: a filter connected to a housing unit and a plurality of absorbent layers within the housing unit, wherein the plurality of absorbent layers are in any order and include: a layer for removing metal and polar compounds, a layer for removing non-polar color impurities, a layer for removing acid functional components, a layer for removing additives with polar or protic functional groups, and a layer for removing residual water. A process and a system that include or utilize the apparatus are also disclosed. | 08-09-2012 |
| 20120206533 | INK COATING COMPOSITION - An ink coating composition is disclosed herein. The ink coating composition includes a polymer latex and an adhesion promoting agent. A non-ionic surfactant is also included in the ink coating composition. The non-ionic surfactant has an HLB value ranging from about 6 to about 15. The ink coating composition also includes a balance of water. | 08-16-2012 |
| 20130026683 | LIQUID INKJETTABLE MATERIALS FOR THREE-DIMENSIONAL PRINTING - The present disclosure is drawn toward compositions, systems, and methods for printing of three-dimensional objects. In one embodiment, a liquid inkjettable material for 3-dimensional printing can comprise from 0.1 wt % to 10 wt % of a pigment, from 10 wt % to 90 wt % of a UV-curable polymer, and from 0.1 wt % to 70 wt % of a polymeric filler. Additionally, the liquid inkjettable material can be jettable from piezo electric inkjet printer nozzles and has acceptable decap performance measured by jetting a normal 50 picoliter ink drop within 10 electric firing pulses after the piezo electric inkjet printer nozzles have been fired and have been subsequently rested for 24 hours. | 01-31-2013 |
| 20130029111 | POST-TREATMENT COMPOSITION FOR A DIGITALLY PRINTED IMAGE - A post-treatment composition for a digitally printed image includes a non-polar solvent and a non-ionic surfactant. The non-ionic surfactant is present in an amount ranging from about 0.5 wt % to about 20 wt % of a total weight of substrate used to form the digitally printed image. The post-treatment composition renders the digitally printed image deinkable. | 01-31-2013 |
