Patent application number | Description | Published |
20080210124 | CORE-SHELL POLYMER PARTICLES - Disclosed herein are nano-sized particles having a core portion comprising a crystalline polymer and a shell portion comprising a polymer derived from at least one monomer not miscible with the crystalline polymer of the shell portion. | 09-04-2008 |
20090047591 | NANO-SIZED COMPOSITES CONTAINING POLYMER MODIFIED CLAYS AND METHOD FOR MAKING TONER PARTICLES USING SAME - A toner comprising toner particles, a polymer binder, at least one colorant and clay composites distributed in the polymer binder, wherein the clay composites comprise a polymer modified clay. | 02-19-2009 |
20090047595 | Nano-Sized Composites Containing Polymer Modified Clays and Method for Making Toner Particles Using Same - A method for making toners to include clay composites. The clay composites 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 with the core, the shell or both. | 02-19-2009 |
20090061349 | LOW MELT TONERS AND PROCESSES THEREOF - A process for preparing toner particles and compositions adapted for use in preparing toners that comprise a blend of a first polyester resin with a second sharp melting polyester resin. The process includes forming an emulsion resin comprising a branched polyester resin, a crystalline polyester resin, a colorant, and optionally a wax. The resin mixture is aggregated using an aggregating agent, such as a zinc acetate solution, to form an aggregate mixture. The aggregate mixture is then coalesced at a temperature of from about 5 to about 20° C. above the T | 03-05-2009 |
20090123864 | Ultra Low Melt Toners Comprised of Crystalline Resins - A toner having an amorphous resin, a crystalline resin, and a colorant, wherein the crystalline resin has a melting temperature of at least 70° C. and a recrystallization point of at least 47° C. exhibits improved document offset properties and improved heat cohesion. Annealing the toner further improves the heat cohesion and morphology of the toner. | 05-14-2009 |
20090141338 | TONER COMPOSITIONS FOR DRY-POWDER ELECTROPHORETIC DISPLAYS - Toner particles and a dry-powder electrophoretic display employing such particles are disclosed herein. The toner particles adapted for a dry-powder electrophoretic display comprise emulsion/aggregation particles having a negative charge. At least a portion of the toner particles include a surface coating, comprising a methacrylate polymer, disposed on the surface of the toner particles to impart a positive charge to a set of toner particles. The emulsion/aggregation toner particles have a particle size generally less than about 10 micrometers that allows for improved image quality as compared to conventional toners utilized in dry-powder electrophoretic displays. | 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 |
20090280429 | POLYESTER SYNTHESIS - The present disclosure provides for enzymatic polymerization to produce polyester resins suitable for use in manufacturing toners. | 11-12-2009 |
20100021839 | TONER COMPOSITIONS - Methods for modifying the acid value of an unsaturated polyester resin suitable for use in forming toner particles are provided. In embodiments, methods may include contacting at least one unsaturated polyester resin with at least one grafting monomer, polymerizing the graft monomer and unsaturated polyester resin to form a graft copolymer, and then utilizing the graft copolymer to form toner particles by combining the graft copolymer with an optional colorant, at least one surfactant, and an optional wax. Toners produced by these methods are also provided. | 01-28-2010 |
20100021841 | LOW MELT TONERS AND PROCESSES THEREOF - A process for preparing toner particles and compositions adapted for use in preparing toners that comprise a blend of a first polyester resin with a second sharp melting polyester resin. The process includes forming an emulsion resin comprising a branched polyester resin, a crystalline polyester resin, a colorant, and optionally a wax. The resin mixture is aggregated using an aggregating agent, such as a zinc acetate solution, to form an aggregate mixture. The aggregate mixture is then coalesced at a temperature of from about 5 to about 20° C. above the T | 01-28-2010 |
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 |
20100122642 | INKS INCLUDING CARBON NANOTUBES DISPERSED IN A POLYMER MATRIX - An ink having a polymer matrix including carbon nanotubes dispersed in a polymer; optionally one or more colorants; and optionally one or more waxes. | 05-20-2010 |
20100124713 | TONERS INCLUDING CARBON NANOTUBES DISPERSED IN A POLYMER MATRIX - A toner comprising: a polymer matrix comprising carbon nanotubes dispersed in a polymer; optionally one or more colorants; and optionally one or more waxes. | 05-20-2010 |
20100222521 | POLYESTER TONER COMPOSITIONS - An emulsion aggregation polyester toner including a polyester resin having modified end groups, wherein the polyester resin includes at least one carboxylic end group. A process of making the toner by oxidation of a polyester resin including reacting the polyester with a hypohalite and a phase transfer catalyst results in a polyester resin endcapped with at least one acidic group. Stable xerographic charging in all ambient environments for all colors, and excellent resistivity and cohesion of the toner, may be achieved. | 09-02-2010 |
20110003243 | TONER COMPOSITIONS AND PROCESSES - Environmentally friendly toner particles are provided which may include a bio-based amorphous polyester resin, optionally in combination with another amorphous resin and/or a crystalline resin. Methods for providing these toners are also provided. | 01-06-2011 |
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 |
20110129774 | INCORPORATION OF AN OIL COMPONENT INTO PHASE INVERSION EMULSION PROCESS - A process for making a resin emulsion suitable for use in forming toner particles including an oil component incorporated into the latex core of the toner particles. | 06-02-2011 |
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 |
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 |
20110212396 | BIO-BASED AMORPHOUS POLYESTER RESINS FOR EMULSION AGGREGATION TONERS - Disclosed are amorphous polyesters that contain only renewable resources designed for emulsion aggregation toner fabrication. The amorphous polyesters may be obtained from the mixture of three different monomers: 1,4:3,6-dianhydro-D-sorbitol (isosorbide), nonanedioic acid (azelaic acid), and butanedioic acid (succinic acid). Different polymer properties may be achieved depending on the ratio of these three monomers. By altering the ratio, polymers of high to low acid value can be obtained, as well as different ranges of glass transition temperatures. | 09-01-2011 |
20110250535 | TONER COMPOSITIONS AND PROCESSES - The present disclosure provides processes for producing polyester 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 compound, at the beginning of coalescence, which speeds the coalescence process and produces toner particles having a desired size and circularity for use in electrophotographic imaging systems. | 10-13-2011 |
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 |
20120064453 | PROCESSES FOR PRODUCING POLYESTER LATEXES WITH IMPROVED HYDROLYTIC STABILITY - A process for making a latex emulsion suitable for use in a toner composition includes contacting at least one crystalline polyester resin with an organic solvent and a stabilizing agent to form a resin mixture, adding a neutralizing agent, and deionized water to the resin mixture, removing the solvent from the formed latex, and continuously recovering latex particles. | 03-15-2012 |
20120156607 | TONER COMPOSITIONS AND PROCESSES - Environmentally friendly toner particles are provided which may include a bio-based amorphous polyester resin, optionally in combination with another amorphous resin and/or a crystalline resin. Methods for providing these toners are also provided. In embodiments, the bio-based amorphous polyester resin is modified with a multi-functional bio-based acid, thereby providing acid-functionalized polyesters, which can be readily emulsified in emulsion aggregation processes for toner fabrication. | 06-21-2012 |
20120183897 | Rosin-Based Resin and Toner Containing Same - Disclosed is a polyester resin comprising the polycondensation product of (a) at least one diacid, acid ester, or diester; and (b) at least one diol; wherein either (i) at least one diacid, acid ester, or diester comprises a rosin diacid, rosin acid ester, or rosin diester; or (ii) at least one diol comprises a rosin diol, and wherein at least one of the rosin diacid, rosin acid ester, rosin diester, or rosin diol is either (A) an ester of a functionalized rosin or an ester of a reduced functionalized rosin, or (B) a dimerized rosin. Also disclosed is a toner composition comprising particles which comprise the disclosed polyester resin and an optional colorant. | 07-19-2012 |
20120190765 | ROBUST CURABLE SOLID INKS - Curable solid inks which are solid at room temperature and molten at an elevated temperature at which the molten ink is applied to a substrate. In particular, the curable solid inks of the present embodiments retain the advantages of handling, safety, and print quality usually associated with conventional curable solid phase change inks but have replaced the petroleum-based materials generally used in the conventional inks with renewable “green” materials to provide a robust and environmentally-friendly curable solid ink. | 07-26-2012 |
20120208118 | RESIN COMPOSITIONS AND PROCESSES - Environmentally friendly resin particles are provided which include a monomer having a color, which is able to impart color to the resulting resin. The resulting resin may be used to form various articles, including toner. A toner of the present disclosure may thus include the bio-based polyester resin, optionally in combination with another amorphous resin and/or a crystalline resin. Methods for providing these resins are also provided. | 08-16-2012 |
20120219894 | TONER COMPOSITIONS AND PROCESSES - Environmentally friendly toner particles are provided which may include a bio-based amorphous polyester resin, optionally in combination with another amorphous resin and/or a crystalline resin. Methods for providing these toners are also provided. In embodiments, the bio-based amorphous polyester resin includes a biologically derived diol, such as 2,3-butanediol. | 08-30-2012 |
20120264047 | Polyester resin comprising a biopolyol - A polyester resin toner-forming composition containing a biopolyol is described. The biopolyol can enhance branching, crosslinking or both. | 10-18-2012 |
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 |
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 |
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 |
20130196262 | SYNTHESIS OF ABIETIC ACID-BASED MACROMER FOR POLYESTER RESIN PROCESS - An improved polycondensation method for bio-based polyesters synthesized from pre-formed macromers and the corresponding compositions, which are useful for producing binder polymers for imaging applications such as emulsion-aggregation (EA) toner. | 08-01-2013 |
20140030646 | CHEMICAL BINDING OF RENEWABLE OILS TO POLYESTER EMULSION - Methods for making toner particles comprising a polyester-wax resin, wherein the polyester-wax resin includes a bio-based oil that is chemically incorporated into the main chain of the polyester resin. The toner particles may be formed using emulsion aggregation methods. A toner formed from the toner particles may be used in low-oil or oil-less fusing systems. | 01-30-2014 |
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 |
20140128541 | LATEX PROCESS TO ENABLE HIGH LOADINGS OF HYDROPHOBIC MONOMERS - A method for preparing a latex resin includes initiating polymerization of a starting reaction mixture including a first surfactant, a second surfactant, a solvent, a core monomer, and a hydrophobic monomer to form a latex seed in a reaction vessel, and mixing an additional amount of the second surfactant, the core monomer, and the hydrophobic monomer into the reaction vessel to form an emulsion including latex particles, wherein the first surfactant and the second surfactant may be the same or different. | 05-08-2014 |
20140170545 | Bio-based Branched Resins for Toner - The present disclosure provides a bio-based, branched polyester resin comprising the condensation product of a hydroxyl donor and a cyclic polyhydroxyl acceptor that may be used with a polyacid to form a polyester which may be used in manufacturing toner for imaging devices. | 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 |
20140170547 | Polyester EA Toner Comprising Furan - The present disclosure provides a bio-based polyester resin comprising a polyacidic furan, including the manufacture of such polyester resin, which resin may be used in manufacturing toner for imaging devices. | 06-19-2014 |
20140171589 | Bio-based Polyester Resins - A polyester resin is described which includes bio-based, cyclohexadiene Diels-Alder reaction adduct monomer for use in toner for imaging devices. | 06-19-2014 |
20140178811 | CHEMICAL BINDING OF RENEWABLE OILS TO POLYESTER EMULSION - Methods for making toner particles comprising a polyester-wax resin, wherein the polyester-wax resin includes a bio-based oil that is chemically incorporated into the main chain of the polyester resin. The toner particles may be formed using emulsion aggregation methods. A toner formed from the toner particles may be used in low-oil or oil-less fusing systems. | 06-26-2014 |
20140342280 | Alizarin-Based Polymer Colorants - A polymer colorant including polymer monomer units, and at least one alizarin unit which is incorporated into the polymer and which provides color to the polymer colorant and a process for preparing the polymer colorant. An article or composition containing the polymer colorant. A toner including the polymer colorant, and optionally, one or more ingredients selected from the group consisting of crystalline polyester resins, amorphous polyester resins, colorants, waxes, coagulants, mordants, and mixtures and combinations thereof. A polymer latex including an aqueous dispersion of polymer colorant, wherein the polymer colorant comprises polymer monomer units and at least one alizarin unit which is incorporated into the polymer and which provides color to the polymer colorant; and optionally, a mordant. | 11-20-2014 |
20140368588 | Phase Change Ink Containing Polyester For Improved Image Robustness - A phase change ink composition including an amorphous compound; a crystalline compound; a polyester polymer, wherein the polyester has a molecular weight of from about 500 to about 8,000 and a polydispersity index of from about 1.0 to about 8.0; an optional synergist; an optional dispersant; and a colorant. A process including (1) incorporating into an ink jet printing apparatus the phase change ink composition; (2) melting the ink; and (3) causing droplets of the melted ink to be ejected in an imagewise pattern onto a substrate. An ink jet printer stick or pellet including the phase change ink composition. | 12-18-2014 |
20140371419 | Carmine Colorants - The present disclosure provides a modified carmine which can comprise polymers, such as, polyesters, or conjugating molecules, such as, polycarboxylic acids. | 12-18-2014 |
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 |
20150030977 | LATEX COMPRISING COLORANT AND METHODS OF MAKING THE SAME - A process includes forming an emulsion comprising a monomer and a colorant, the colorant further including an anionic functional group and a lipophilic counter ion, and polymerizing the monomer to form a latex, the latex includes polymer nanoparticles having the colorant dispersed therein. | 01-29-2015 |
20150079504 | EMULSION AGGREGATION TONER FOR SENSOR AND ANTIBACTERIAL APPLICATIONS - Provided is a toner that has a plurality of toner particles. Each toner particle can include a binder resin core and a shell disposed about the binder resin core. The binder resin core can include at least one binder resin. The shell can include a plurality of metal nanoparticles. The binder resin core can be prepared by forming an aggregate of the binder resin in which metallic nanoparticles are not present. | 03-19-2015 |