Patent application number | Description | Published |
20090045360 | QUANTUM DOT-BASED LUMINESCENT MARKING MATERIAL - A luminescent marking material includes a luminescent material, which includes quantum dots, and a vehicle for delivering the luminescent material to an object. A method of embedding information on a substrate includes assigning information to luminescent material, which includes quantum dots, forming luminescent marking material by combining luminescent material and marking material, and creating an image on a substrate with the luminescent marking material. A system that embeds and recovers information on a substrate includes an image forming device containing such a luminescent marking material for forming an image on the a substrate and a document reading device including a radiation emitting unit, which emits radiation that causes the luminescent marking material to illuminate, and a reader that detects the data on the substrate while the luminescent marking material is illuminated. | 02-19-2009 |
20090214972 | TONER COMPOSITIONS - The present disclosure provides resins having fluorescent agents suitable for use in toner compositions that are capable of imparting fluorescent properties to images printed with the toners. | 08-27-2009 |
20090280429 | POLYESTER SYNTHESIS - The present disclosure provides for enzymatic polymerization to produce polyester resins suitable for use in manufacturing toners. | 11-12-2009 |
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 |
20100055750 | POLYESTER SYNTHESIS - The present disclosure provides for enzymatic polymerization to produce polyester resins suitable for use in manufacturing toners. In embodiments, crystalline copolymers, which are polyesters, may be synthesized from lactones, cyclic anhydrides, cyclic carbonates, and combinations thereof. These crystalline copolymers, in turn, may be utilized in the synthesis of toner particles. | 03-04-2010 |
20100062358 | POLYESTER SYNTHESIS - The present disclosure provides methods for modifying polymeric resin materials after polymerization to make fine adjustments in the chemical or physical properties of the resin, or in modifying the structure of the polymer chains. The resulting resins may be useful in forming toner particles. In embodiments, a polymeric resin may have epoxy groups added to its backbone to increase its melting point. The resulting polymer, sometimes referred to herein as an epoxidized polymer, may, in turn, be reacted with wax-like components, to increase the compatibility of the polyester with waxes utilized in forming toner particles. In other embodiments, the resulting epoxidized polymer may be reacted with components possessing carboxylic acid groups to adjust the acid value and weight average molecular weight of the resin. | 03-11-2010 |
20100081076 | PRODUCTION OF POLYESTERS IN A CONTINUOUS PACKED-BED REACTOR USING IMMOBILIZED ENZYME CATALYSTS - In accordance with various embodiments, there is a method of making a polyester. The method can include providing a monomer solution, the monomer solution including one or more cyclic esters in a concentration ranging from about 1 to about 100% and one or more solvents in a concentration ranging from about 99% to about 0%. The method of making a polyester can also include providing a packed-bed reactor including one or more immobilized enzymes, wherein the packed-bed reactor has an inlet and an outlet. The method can further include circulating the monomer solution through the packed-bed reactor to generate a solution enriched with polyester, such that the one or more immobilized enzymes convert the one or more cyclic esters to polyester in the packed-bed reactor during circulation and collecting the solution enriched with polyester exiting through the outlet. | 04-01-2010 |
20100084610 | FLUORESCENT ORGANIC NANOPARTICLES AND A PROCESS FOR PRODUCING FLUORESCENT ORGANIC NANOPARTICLES - Fluorescent organic nanoparticles and a process for producing fluorescent organic nanoparticles having a size of less than about 500 nanometers comprising a polymeric matrix comprising one or more crosslinked polymer resins, and comprising one or more fluorescent dyes incorporated into the polymer matrix. | 04-08-2010 |
20100086683 | FLUORESCENT SOLID INK MADE WITH FLUORESCENT NANOPARTICLES - A nonpolar or solid (or phase change) ink composition that includes a carrier and at least one nanoscale fluorescent pigment particle composition and/or a fluorescent organic nanoparticle composition. The fluorescent organic nanoparticle composition includes a polymeric matrix obtained by modified EA latex process and/or emulsion polymerization and one or more fluorescent dyes and the nanoscale fluorescent pigment particle composition includes pigment molecules with at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, the functional moiety of the pigment associates non-covalently with the functional group of the stabilizer. | 04-08-2010 |
20100086701 | RADIATION CURABLE INK CONTAINING FLUORESCENT NANOPARTICLES - Radiation curable compositions, such as UV curable ink compositions, contain a polymeric dispersant, a curable material, that includes a carrier and at least one nanoscale fluorescent pigment particle and an optional non-fluorescent colorant. The fluorescent organic nanoparticle composition includes one or more fluorescent dyes dispersed in a polymeric matrix obtained by modified EA latex process or by emulsion polymerization. In a different embodiment, the nanoscale fluorescent pigment particle composition includes pigment molecules with at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, the functional moiety of the pigment associates non-covalently with the functional group of the stabilizer, and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles. | 04-08-2010 |
20100086867 | TONER CONTAINING FLUORESCENT NANOPARTICLES - A method for making toners to include at least one nanoscale fluorescent pigment particle composition and/or a fluorescent organic nanoparticle composition. The particles are incorporated into emulsion of toner and used in making toner via emulsion aggregation. Such toners may have a core and/or a shell and the clay composites may be included within the core, the shell or both. The fluorescent organic nanoparticle composition includes a polymeric matrix obtained by modified EA latex process and/or emulsion polymerization and one or more fluorescent dyes and the nanoscale fluorescent pigment particle composition includes pigment molecules with at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, the functional moiety of the pigment associates non-covalently with the functional group of the stabilizer, and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles. | 04-08-2010 |
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 |
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 |
20100304287 | POLYESTER SYNTHESIS - The present disclosure provides processes for the production of block copolymer polyester resins suitable for use in manufacturing toners. In embodiments, the copolymers include both a crystalline block and an amorphous block, which can self-assemble to form nanoparticles suitable for use in forming toners. | 12-02-2010 |
20100330487 | TONER COMPOSITIONS - Coated phosphorescent pigments are provided which may be utilized in toner compositions. In embodiments, the phosphorescent pigment may be coated by a powder coating process. The large pigment particles may be dry blended with dried resin latex particles, thereby coating the pigment surface, followed by heating and shearing in a rotary kiln or extruder to melt the toner resin and fuse it to the pigment surface. The resulting coated particles may be utilized with other toners, in embodiments color toners, to provide phosphorescent images. | 12-30-2010 |
20110008722 | TONER COMPOSITIONS - Toners are provided which include a resin including at least one baroplastic polymer. The baroplastic polymer, in embodiments, may be a block copolymer with discrete low glass transition temperature (Tg) domains and high Tg domains that plasticize one another at ambient temperature when subjected to pressures of from about 500 psi (about 3.45 MPa) to about 10,000 psi (about 69 MPa), enabling them to be extruded and molded without heat. The resulting polymers, in turn, may then be utilized to form toners. | 01-13-2011 |
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 |
20110014564 | POLYESTER SYNTHESIS - The present disclosure provides processes for the production of block copolymer polyester resins suitable for use in manufacturing toners. In embodiments, the copolymers include both a crystalline block and an amorphous block, which can self-assemble to form nanoparticles suitable for use in forming toners. | 01-20-2011 |
20110086302 | TONER COMPOSITIONS AND PROCESSES - An emulsion aggregation toner composition includes toner particles including: an unsaturated polymeric resin, such as amorphous resins, crystalline resins, and combinations thereof; an optional colorant; an optional wax; an optional coagulant; and an IR absorber. The use of an IR absorber may permit formation of color toners that have uniform gloss and crease properties, i.e., the IR absorbers may prevent gloss and crease differences between color and black toners. | 04-14-2011 |
20110123924 | TONER COMPOSITIONS - The present disclosure provides for enzymatic polymerization to produce polyester resins suitable for use in manufacturing toners. In embodiments, crystalline copolymers, which are polyesters, may be synthesized from lactones, cyclic anhydrides, cyclic carbonates, and combinations thereof. These crystalline copolymers, in turn, may be utilized in the synthesis of toner particles. | 05-26-2011 |
20110143274 | TONER PROCESSES - The present disclosure provides toners and processes for making said toners. In embodiments, the toners are invisible when viewed under natural light, but possess a UV emitter that renders them visible when exposed to UV light of a specific wavelength. By selecting the appropriate UV emitter and utilizing an ionic crosslinker, the gloss of the toner may be tailored to match the gloss of any substrate, such as paper, to which the toner is to be applied, thereby further enhancing its invisibility under visible light. | 06-16-2011 |
20110143278 | TONER PROCESSES - The present disclosure provides toners and processes for making said toners. In embodiments, the toners are invisible when viewed under natural light, but possess a fluorescent agent that renders them visible when exposed to UV light of a specific wavelength. In other embodiments the toners have a color under natural light, and a different color when exposed to UV light. | 06-16-2011 |
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 |
20110177441 | TONER COMPOSITIONS - The present disclosure provides processes for producing images of excellent color fidelity when incorporating a cyan toner with a lower colorant loading in addition to a first cyan toner. In embodiments, the cyan pigmented particles may be cyan emulsion aggregation toners. In accordance with the present disclosure, a pair of cyan toners are matched in color, wherein the color of a first cyan toner printed at a predetermined halftone area coverage on a substrate substantially matches the color of the solid (100%) printed patch of the second cyan toner, which is lighter than the first cyan toner, thus avoiding a visible hue shift on the print that would otherwise be objectionable. In embodiments, the light cyan toner is color matched by adding a hue-adjusting colorant or combination of colorants which absorb wavelengths of light between 500 and 600 nanometers, and optionally adding a shade-adjusting colorant or combination of colorants which absorb wavelengths of light between 400 and 500 nanometers. | 07-21-2011 |
20110177442 | TONER COMPOSITIONS - The present disclosure provides processes for producing images of excellent color fidelity when incorporating a magenta toner with a lower colorant loading in addition to a first magenta toner. In embodiments, the magenta pigmented particles may be magenta emulsion aggregation toners. In accordance with the present disclosure, a pair of magenta toners are matched in color, wherein the color of a first magenta toner printed at a predetermined halftone area coverage on a substrate substantially matches the color of the solid (100%) printed patch of the second magenta toner, which is lighter than the first magenta toner, thus avoiding a visible hue shift on the print that would otherwise be objectionable. In embodiments, the light magenta toner is color matched by adding a hue-adjusting colorant or combination of colorants which absorb wavelengths of light between 400 and 500 nanometers, and optionally adding a shade-adjusting colorant or combination of colorants which absorb wavelengths of light between 600 and 700 nanometers. | 07-21-2011 |
20110177443 | 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 of a blue toner, thereby permitting adjustment of the pigment loading and/or toner mass per unit area. | 07-21-2011 |
20110206400 | ELECTROPHOTOGRAPHIC APPARATUS - The present disclosure provides toners having a tunable gloss level, electrophotographic apparatuses for using such toners as well as processes for making such toners. | 08-25-2011 |
20110207044 | TUNABLE GLOSS TONERS - The present disclosure provides toners having a tunable gloss level, electrophotographic apparatuses for using such toners as well as processes for making such toners. | 08-25-2011 |
20110311909 | Toner Compositions - The present disclosure provides processes for producing images of excellent color fidelity when incorporating a magenta toner with a lower colorant loading in addition to a first magenta toner. In embodiments, the magenta pigmented particles may be magenta emulsion aggregation toners. In accordance with the present disclosure, a pair of magenta toners are matched in color, wherein the color of a first magenta toner printed at a predetermined halftone area coverage on a substrate substantially matches the color of the solid (100%) printed patch of the second magenta toner, which is lighter than the first magenta toner, thus avoiding a visible hue shift on the print that would otherwise be objectionable. In embodiments, the light magenta toner is color matched by adding a hue-adjusting colorant or combination of colorants which absorb wavelengths of light between 400 and 500 nanometers, and optionally adding a shade-adjusting colorant or combination of colorants which absorb wavelengths of light between 600 and 700 nanometers. | 12-22-2011 |
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 |
20120043504 | TONER PROCESSES - The present disclosure provides toners and processes for making said toners. In embodiments, the toners include a fluorescent additive having a fluorescent agent. Toners are colorless when viewed under natural light but when exposed to UV light of a specific wavelength the toners are rendered bright green due to the presence of the fluorescent agent. | 02-23-2012 |
20120108775 | PHOTOCHROMIC POLYESTERS AND METHODS OF PRODUCING PHOTOCHROMIC POLYESTERS - A method for producing a photochromic polyester, the method including: a) providing a reaction solution having at least one ester monomer, a photochromic compound having or functionalized to have at least one hydroxyl group, and a metal-free catalyst; b) reacting the at least one ester monomer and the photochromic compound using the metal-free catalyst to produce a polymeric product, where the polymeric product has a photochromic polyester; and c) separating the polymeric product from the reaction solution. A photochromic polyester includes a photochromic compound covalently linked to a polyester and the polyester is obtained by polymerizing a lactone. | 05-03-2012 |
20120258398 | TONER COMPOSITIONS AND PROCESSES - Toners are provided, which possess low melt properties capable of producing a low gloss finish. Methods for providing these resins and toners are also provided which include the process of controlling the gloss of the toner utilizing a slow acid addition during coalescence optionally combined with little or no chelating agent added during the aggregation process. | 10-11-2012 |
20120276477 | TONER COMPOSITIONS AND PROCESSES - Environmentally friendly toner particles are provided which may include a bio-based amorphous polyester resin including camphoric acid, optionally in combination with a crystalline resin. Methods for providing these toners are also provided. | 11-01-2012 |
20120276478 | Toner compositions and processes - Environmentally friendly toner particles are provided which may include a bio-based amorphous polyester resin including camphoric acid, optionally in combination with a crystalline resin. Methods for providing these toners are also provided. | 11-01-2012 |
20130183615 | Tunable Gloss Toners - The present disclosure provides toners having a tunable gloss level, electrophotographic apparatus for suing such toners as well as processes for making such toners. | 07-18-2013 |
20130236829 | SUPER LOW MELT TONER WITH CORE-SHELL TONER PARTICLES - A toner particle having a core and a shell, and a method for making the toner particle. The core includes a crystalline resin and the shell includes an amorphous resin. The shell is substantially to completely free of the crystalline resin. The toner particle permits inclusion of greater amounts of crystalline resin materials in the core, thereby lowering the minimum fusing temperature of the toner formed from the particles. | 09-12-2013 |
20130245197 | Robust Resin For Solvent-Free Emulsification - A branched polyester suitable for use in solvent-free emulsification, the branched polyester having a first original weight average molecular weight before undergoing solvent-free emulsification and a second weight average molecular weight after undergoing solvent-free emulsification, wherein the branched polyester has a structure that limits degradation of the polyester during solvent-free emulsification to less than about 20 percent of the first original weight average molecular weight, wherein the branched polyester comprises a compound of the formula described. | 09-19-2013 |
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 |
20140165873 | Phenylcyclohexanol Derivatives As Wax Modifiers And Gelators - A compound of the formula | 06-19-2014 |
20140170546 | Thymol Derivatives in Polyester Polymer Toner Resin - The present disclosure provides a polyester toner resin comprising a polyhydroxylated thymol derivative that may be used in manufacturing an emulsion aggregation (EA) toner for imaging devices. | 06-19-2014 |
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 |
20140170555 | Cardanol Derivatives in Polyester Toner Resins - The present disclosure provides a polyester toner resin comprising a polyhydroxylated cardanol derivative, that may be used in manufacturing an emulsion aggregation (EA) toner for imaging devices. | 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 |