Patent application number | Description | Published |
20080220359 | TONER PROCESSES - Disclosed herein are toner particles generated by emulsion/aggregation processes. The processes are conducted under conditions that shorten the time for coalescence and post-formation washing, thereby increasing efficiency of the processes as compared to conventional processes. | 09-11-2008 |
20090017393 | TONER COMPOSITIONS - Disclosed herein are emulsion aggregation toner particles having less than about 15 atomic percent oxygen in relation to a total atomic percent of 100 for all elements on the surface thereof. Such toner particles exhibit lower marks on print defects. | 01-15-2009 |
20090092918 | Grafting Metal Oxides Onto Polymer for Toner - Toner particles, including at least one binder, at least one colorant, and at least one metal surface additive, wherein the at least one metal oxide surface additive is a metal oxide particle covalently bonded with at least one polycondensation polymer. | 04-09-2009 |
20090111040 | RESIN-COATED PEARLESCENT OR METALLIC PIGMENT FOR SPECIAL EFFECT IMAGES - A pigment particle coated with at least one of a resin and a charge control surface additive, wherein the pigment particle is a pearlescent or metallic pigment. The pigment adds pearlescent effects and is a size and charge as to be used as a toner material in electrostatographic image formation. | 04-30-2009 |
20090142692 | LOW MOLECULAR WEIGHT LATEX AND TONER COMPOSITIONS COMPRISING THE SAME - Provided are a latex process and a toner process, both of which include the preparation of a latex having weight average molecular weight of from about 12×10 | 06-04-2009 |
20090220880 | GRAFTING FUNCTIONALIZED PEARLESCENT OR METALLIC PIGMENT ONTO POLYESTER POLYMERS FOR SPECIAL EFFECT IMAGES - Pigment particles with at least one metal oxide surface additive, wherein the at least one metal oxide surface additive is a metal oxide particle covalently bonded with at least one polycondensation polymer, wherein the pigment particle is a pearlescent or metallic pigment. | 09-03-2009 |
20090321676 | FERROMAGNETIC NANOPARTICLES WITH HIGH MAGNETOCRYSTALLINE ANISOTROPY FOR MICR INK APPLICATIONS - An ink including stabilized magnetic single-crystal nanoparticles, wherein the value of the magnetic anisotropy of the magnetic nanoparticles is greater than or equal to 2×10 | 12-31-2009 |
20090325098 | FERROMAGNETIC NANOPARTICLES WITH HIGH MAGNETOCRYSTALLINE ANISOTROPY FOR MICR TONER APPLICATIONS - A toner including stabilized magnetic single-crystal nanoparticles, wherein the value of the magnetic anisotropy of the magnetic nanoparticles is greater than or equal to 2×10 | 12-31-2009 |
20100053643 | METHOD AND APPARATUS FOR PRINTING - Aspects of the disclosure provide a printing method that can utilize a lightly pigmented toner along with a darkly pigmented toner to improve the image quality. The method can include receiving a dataset corresponding to a printing of a printing system using a darkly pigmented toner. The printing system may have an undesirable optical density printing range for the darkly pigmented toner. Further, the method can include converting the dataset to a first dataset corresponding to a first printing of the printing system using the darkly pigmented toner, and a second dataset corresponding to a second printing of the printing system using a lightly pigmented toner. The first dataset can avoid the undesirable optical density printing range for the darkly pigmented toner, and a combination of the first printing and the second printing providing a substantially same printed optical density corresponding to the received dataset. | 03-04-2010 |
20100092215 | PRINTING SYSTEM WITH TONER BLEND - An improved electrostatic printing method includes printing a first marking material, such as a fully colorized toner, and also printing a second marking material on the same area of the print substrate. The second marking material is a mixture of two toners, where at least one of the two toners has a lower color strength than the first marking material. The second marking material has the same hue as the first marking material, and the ratio of toners in the mixture is such that the second marking material has a color strength matching that of an undesirable optical density printing rage of the first marking material. | 04-15-2010 |
20100092886 | TONER COMPOSITIONS - The present disclosure provides processes for producing toners by emulsion aggregation where the resulting toner particles have high pigment loadings and desired circularity. The methods include adding a metal, in embodiments a metal salt, at the beginning of coalescence, which surprisingly speeds the coalescence process and produces toner particles having a desired size and circularity for use in electrophotographic imaging systems. | 04-15-2010 |
20100147686 | SYSTEMS AND METHODS FOR TRANSPORTING PARTICLES - Various particle transport systems and components for use in such systems are described. The systems utilize one or more traveling wave grids to selectively transport, distribute, separate, or mix different populations of particles. Numerous systems configured for use in two dimensional and three dimensional particle transport are described. | 06-17-2010 |
20100147687 | SYSTEMS AND METHODS FOR TRANSPORTING PARTICLES - Various particle transport systems and components for use in such systems are described. The systems utilize one or more traveling wave grids to selectively transport, distribute, separate, or mix different populations of particles. Numerous systems configured for use in two dimensional and three dimensional particle transport are described. | 06-17-2010 |
20100147691 | SYSTEMS AND METHODS FOR TRANSPORTING PARTICLES - Various particle transport systems and components for use in such systems are described. The systems utilize one or more traveling wave grids to selectively transport, distribute, separate, or mix different populations of particles. Numerous systems configured for use in two dimensional and three dimensional particle transport are described. | 06-17-2010 |
20100159375 | TONERS CONTAINING POLYHEDRAL OLIGOMERIC SILSESQUIOXANES - Disclosed is a toner composition comprising toner particles which comprise a resin, an optional colorant, and a polyhedral oligomeric silsesquioxane compound. | 06-24-2010 |
20100159376 | TONERS CONTAINING POLYHEDRAL OLIGOMERIC SILSESQUIOXANES - Disclosed is a toner composition comprising toner particles which comprise (a) a resin having chemically bonded thereto a polyhedral oligomeric silsesquioxane, (b) and an optional colorant. | 06-24-2010 |
20100173239 | LOW MELT COLOR TONERS WITH FLUORESCENCE AGENTS - A low melt or ultra low melt toner includes at least one amorphous polyester of an alkoxylated bisphenol based polyester, a crystalline polyester derived from the reaction of an aliphatic dicarboxylic acid or aromatic dicarboxylic acid with an aliphatic diol, at least one colorant and at least one fluorescence agent. Methods of authentication of the toner, of authentication of documents formed from the toner, of embedding information in documents, and the like are also set forth. | 07-08-2010 |
20100203439 | TONER COMPOSITIONS AND PROCESSES - Environmentally friendly toner particles are provided which may, in embodiments, include a bio-based amorphous polyester resin, optionally in combination with another amorphous resin and/or a crystalline resin. Toner particles may, in embodiments, have a core-shell configuration, with the shell formed of the bio-based amorphous polyester resin, the amorphous polyester resin, the crystalline polyester resin, or combinations thereof. | 08-12-2010 |
20100297546 | TONER COMPOSITIONS - Toner particles are provided which may, in embodiments, include a core and a shell. In embodiments, charge control agents may be co-emulsified with a resin utilized to form a shell. The shell may prevent a crystalline resin in the core from migrating to the toner surface. Inclusion of the charge control agent in the shell itself may provide the resulting toner particles with desirable charge characteristics and sensitivity to relative humidity. | 11-25-2010 |
20100330486 | Toner Compositions - A toner including at least one amorphous polyester, at least one crystalline polyester and at least one ester wax, wherein the linear polyester and the at least one ester wax have a difference in solubility parameter of from about 0.1 to about 1.7. | 12-30-2010 |
20110014559 | COLORED TONERS - The present disclosure provides violet toners and methods for their production. In embodiments, methods of the present disclosure include systems which may be utilized to predict the color properties of a violet toner, thereby permitting adjustment of the pigment loading and/or target mass per unit area. | 01-20-2011 |
20110091803 | CURABLE TONER COMPOSITIONS AND PROCESSES - An emulsion aggregation toner composition includes toner particles including: an amorphous polyester resin; an optional crystalline resin; an optional colorant; an optional wax; an optional coagulant; and a polymeric or oligomeric hydroxy ketone photo initiator capable of initiating crosslinking of said polyester resin, wherein at least one of the amorphous polyester resin and the optional crystalline resin when present is unsaturated. | 04-21-2011 |
20110177245 | INK COMPOSITIONS - A light-magenta solid ink including an ink vehicle and a colorant. The colorant includes a magenta colorant, a hue-adjusting colorant that absorbs light having a wavelength of from about 400 to about 500 nm, and an optional shade-adjusting colorant that absorbs light having a wavelength of from about 600 to about 700 nm. | 07-21-2011 |
20110177246 | INK COMPOSITIONS - A light-magenta radiation-curable gel ink including at least one curable monomer, at least one organic gellant, at least one photoinitiator, and a colorant. The colorant includes a magenta colorant, a hue-adjusting colorant that absorbs light having a wavelength of from about 400 to about 500 nm, and an optional shade-adjusting colorant that absorbs light having a wavelength of from about 600 to about 700 nm. | 07-21-2011 |
20110177247 | INK COMPOSITIONS - A light-cyan solid ink including an ink vehicle and a colorant. The colorant includes a cyan colorant, a hue-adjusting colorant that absorbs light having a wavelength of from about 500 to about 600 run, and an optional shade-adjusting colorant that absorbs light having a wavelength of from about 400 to about 500 nm. | 07-21-2011 |
20110177248 | INK COMPOSITIONS - A light-cyan radiation-curable gel ink including at least one curable monomer, at least one organic gellant, at least one photoinitiator, and a colorant. The colorant includes a cyan colorant, a hue-adjusting colorant that absorbs light having a wavelength of from about 500 to about 600 nm, and an optional shade-adjusting colorant that absorbs light having a wavelength of from about 400 to about 500 nm. | 07-21-2011 |
20110217645 | TONER COMPOSITIONS AND METHODS - A toner and method for making a toner that includes an amorphous resin, a crystalline resin, and a cyanine dye. The cyanine dye improves heat cohesion without negatively effecting other desirable properties. | 09-08-2011 |
20110318685 | METHOD FOR CONTROLLING A TONER PREPARATION PROCESS - A method of making toner particles, including mixing at least one emulsion of at least one resin, a colorant, an optional wax, and optional additives to form a slurry; heating the slurry to form aggregated particles in the slurry; freezing aggregation of the particles by adjusting the pH; and heating the aggregated particles in the slurry to coalesce the particles into toner particles. | 12-29-2011 |
20120039642 | MULTI-STAGE FIXING SYSTEMS, PRINTING APPARATUSES AND METHODS OF FIXING MARKING MATERIAL TO SUBSTRATES - Multi-stage fixing systems for fixing toner to a substrate, printing apparatuses and methods of fixing marking material to a substrate are provided. An exemplary embodiment of the multi-stage fixing systems includes a softening device for softening toner applied to a substrate by a marking device; and a fixing device for fixing the softened toner to the substrate. The fixing device includes a first fixing member including a first surface; a first thermal energy source for actively heating the first surface; and a second fixing member including a second surface, the first surface and the second surface form a fixing nip at which the substrate with softened toner is received. The first fixing member and the second fixing member are operable to apply heat and pressure to the substrate and softened toner received at the fixing nip to fix the toner to the substrate. | 02-16-2012 |
20120145947 | PYROPHORIC IRON NANOPARTICLES AND CONTINUOUS PROCESSES FOR PRODUCTION THEREOF - Pyrophoric nanoparticles and methods of producing the same are provided herein. An exemplary method of producing pyrophoric nanoparticles can include providing a first aqueous solution comprising at least one metal salt and an aliphatic polyether; providing a second solution comprising a metal hydride reducing agent; continuously combining the first and second solutions to produce nanoparticles in a liquid phase; separating the nanoparticles from the liquid phase; and drying the nanoparticles to form pyrophoric nanoparticles. The pyrophoric nanoparticles can have a diameter ranging from about 1 nm to about 50 nm. | 06-14-2012 |
20120189955 | EMULSION AGGREGATION TONERS - The present disclosure provides processes for producing toners. In embodiments, silica is added as a chelating agent during the toner production process contributing to enhanced triboelectric charging properties of the toner particles. | 07-26-2012 |
20120208026 | Silica-Coated Magnetic Nanoparticles and Process for Making Same - Disclosed are magnetic coated nanoparticles comprising magnetic cores coated with silica and an organic stabilizer, the magnetic coated nanoparticles having an average particle diameter of no more than about 1,000 nanometers. Also disclosed is a process for preparing silica-coated nanoparticles which comprises: (a) dispersing magnetic nanoparticle cores in a solvent to provide a dispersion having a pH of from about 1 to about 6; (b) adding to the dispersion of magnetic nanoparticles a solution containing tetraethylorthosilicate; and (c) homogenizing or sonicating the dispersion containing the magnetic nanoparticles. | 08-16-2012 |
20130123403 | Powder Coated Carrier - The instant disclosure describes methods for preparing latex resins for coated carriers using surfactant partitioning, which resins exhibit both lower ζ potential and greater latex stability, while not adversely affecting particle size, toner charge or other metrics. | 05-16-2013 |
20130149643 | Carboxylic acid or acid salt functionalized polyester polymers - The present disclosure describes a polyester that contains plural pendant adjacent carboxylic acid or acid salt side groups for use in making a toner for use in imaging devices. | 06-13-2013 |
20130157187 | Toners with Improved Dielectric Loss - The disclosure describes a pigment treated with a rosin and a toner particle containing that rosin-treated pigment particle. The toner has a lower level of dielectric loss. | 06-20-2013 |
20130260305 | Powder Coated Carrier - The instant disclosure describes methods for preparing latex resins for coated carriers using surfactant partitioning, which resins exhibit both lower ζ potential and greater latex stability, while not adversely affecting particle size, toner charge or other metrics. | 10-03-2013 |
20130337377 | Toners with Improved Dielectric Loss - The disclosure describes a pigment treated with a rosin and a toner particle containing that rosin-treated pigment particle. The toner has a lower level of dielectric loss. | 12-19-2013 |
20140127619 | Red Toners - Red toners that approximate PANTONE® Red 032 and PANTONE® Warm Red are described. The colorant includes an orange colorant and a red colorant, where the orange colorant absorbs light having a wavelength of from about 400 to about 520 nm, and where the red colorant absorbs light having a wavelength of from about 500 to 580 nm. | 05-08-2014 |
20140128518 | Solid Red Ink Formulations - A solid ink including an ink vehicle and a colorant, the colorant includes an orange colorant and a red colorant, where the orange colorant absorbs light having a wavelength of from about 400 to about 560 nm, and where the red colorant absorbs light having a wavelength of from about 510 to 580 nm. The ink substantially matches PANTONE® Red 032 or PANTONE® Warm red. | 05-08-2014 |
20140170551 | Tunable Gloss Toner - The disclosure describes an emulsion aggregation toner process wherein aspartic acid derivatives are employed as chelating agents. Also disclosed is a process for preparing toner using aspartic acid derivatives to freeze/stop toner particle growth where coalescence occurs following acidification of the reaction mixture. | 06-19-2014 |
20140197364 | UV Red Fluorescent EA Toner - The present disclosure relates to a toner design for a clear UV red fluorescence toner having a high lanthanide complex pigment loading, including methods of making the fluorescence toner using a saccharide or a sugar acid to avoid complexation of lanthanide ions from the pigment, with lower aggregation and coalescence temperatures in the preparation of toner particles, where the particles exhibit a narrow size distribution and good xerographic performance. | 07-17-2014 |
20150018483 | METHOD FOR GENERATION OF NANOPARTICLES - A discrete nanostructure formed by a method comprising providing an aliphatic multi-block copolymer. The aliphatic multi-block copolymer includes at least one polyester block and at least one functionalized polycarbonate block. The aliphatic multi-block copolymer, a deprotonating agent and water are mixed to form an aqueous mixture. The aqueous mixture is maintained at a reaction temperature suitable to result in self-assembly of the multi-block copolymer into nanoparticles. | 01-15-2015 |
20150018494 | Anhydride End-Capping of Polymers - The disclosure describes a neat, one-pot scheme for reacting a hydroxyl propagating end of a polymer with a cyclic acid anhydride to form a free acid terminus. | 01-15-2015 |
20150018496 | Polyester/Polycarbonate Block Copolymers Via One-Pot, Neat Ring Opening Polymerization - The instant disclosure describes polyester synthesis processes, including processes for the ring-opening polymerization (ROP) of cyclic organic monomer components and components comprising a functional group using an organocatalyst system to effect ROP-based block copolymer preparation. | 01-15-2015 |
20150018497 | One-Pot, Neat Ring Opening Polymerization to Prepare Resin - The instant disclosure describes a ring opening polymerization (ROP) of cyclic monomer components using a nucleophilic transesterification catalyst system in a neat, single pot reaction to obtain homopolymers and copolymers. | 01-15-2015 |
20150018498 | PURIFICATION OF FUNCTIONALIZED TRIBLOCK COPOLYMERS VIA METHANOL TRITURATION - A method of making a pure block copolymer includes forming a crude block copolymer; heating a solution of the crude block copolymer and alcohol; and cooling the solution to promote precipitation of a purified block copolymer, wherein an amount of impurities remaining in the purified block copolymer is from about 0 to about 5 wt % based on a total weight of the purified block copolymer; a ratio of a polydispersity index of the crude block copolymer to a polydispersity index of the purified block copolymer is from about 1.02 to about 1.25; a ratio of a molecular weight of the crude block copolymer to a molecular weight of the purified block copolymer is from about 0.75 to about 1.0; and a ratio of a number average molecular weight of the crude block copolymer to a number average molecular weight of the purified block copolymer is from about 0.65 to about 1. | 01-15-2015 |