Abstract: A multicolored display and process for forming such a display is provided. The multicolored display includes marking particles comprising a mixture of photochromic materials. The photochromic materials each exhibit a first “invisible” photochromic state at a first absorption spectrum and at least a second “visible” photochromic state at a second absorption spectrum. The second “visible” photochromic state of each photochromic material produces a different color relative to the other photochromic materials. In embodiments, the marking particles include a mixture of a spiropyran material and a dithienylethene material.

Abstract: A toner process that includes a first heating of a colorant dispersion, a first polyester resin free latex emulsion, a second polyester latex emulsion, and a wax dispersion in the presence of a coagulant containing a metal ion; adding a third polyester free latex; adding an organic sequestering compound or a silicate salt sequestering compound, followed by a second heating.

Abstract: 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 Tg of the emulsion resin to produce the resultant toner particles.

Abstract: The toner includes emulsion aggregation toner particles having a core and a shell. The core includes binder including a first non-crosslinked styrene acrylate polymer and a crosslinked styrene acrylate polymer, at least one colorant, at least one wax, and aluminized silica. The shell includes a second non-crosslinked styrene acrylate polymer that is preferably the same as the non-crosslinked styrene acrylate polymer of the core. The aluminized silica is advantageously used as a coagulant in the emulsion aggregation formation of the toner. A developer containing the toner and a method of forming an image using the toner are also described.

Abstract: A toner process that includes a first heating of a colorant dispersion, a first polyester resin free latex emulsion, a second polyester latex emulsion, and a wax dispersion in the presence of a coagulant containing a metal ion; adding a third polyester free latex; adding an organic sequestering compound or a silicate salt sequestering compound, followed by a second heating.

Abstract: A method of making particles suitable for use as toners includes forming a mixture of sulfonated polyester resin, a colorant dispersion and optionally a wax dispersion, homogenizing the mixture, adding a coagulant to the mixture to aggregate the mixture to form aggregated particles, and coalescing the aggregated particles to form coalesced particles. In the method, when a predetermined average particle size is achieved during the aggregation and/or coalescing step, a complexing agent that complexes with ions of the coagulant is added in an amount effective to substantially halt any further particle growth. The complexing agent is believed to halt further growth by complexing with free coagulant ions still in the solution.

Abstract: A toner is disclosed that includes a toner binder of crystalline sulfonated polyester, wherein the crystalline sulfonated polyester is 90% by weight or more of the toner binder, and a colorant. In other embodiments, the toner includes a crystalline sulfonated polyester and a linear amorphous sulfonated polyester, and a colorant. In these embodiments, the crystalline sulfonated polyester is from about 20% to about 60% by weight of the toner binder and the linear amorphous sulfonated polyester is from about 40% to about 80% by weight of the toner binder. The toners possess excellent miniumum fixing temperatures in the range of from about 80° C. to about 130° C. Processes for preparing the toners are also described.

Abstract: A toner composition includes a styrene-based polymer resin, a crystalline polyester wax, a second wax different from the crystalline polyester wax, a colorant, and a coagulant.

Abstract: A toner process involving the heating a mixture of an acicular magnetite dispersion, a colorant dispersion, a wax dispersion, a first latex containing a crosslinked resin, and a second latex containing a resin free of crosslinking in the presence of a coagulant to provide aggregates, stabilizing the aggregates with an organic complexing compound salt dissolved in a base, and further heating the aggregates to provide coalesced toner particles.

Abstract: A method of forming polymeric microspheres for biomedical applications includes forming polymeric microspheres by an emulsion/aggregation process from a precursor monomer species, and treating the polymeric microspheres to attach a biomedical functional material to the polymeric microspheres, where the polymeric microspheres have an average particle diameter of from about 1 to about 15 microns with a narrow particle geometric size distribution. The biomedical functional material may be, for example, a radioactive material, a radioactive precursor material, a bioactive agent, or a ligand.

Abstract: A toner process comprised of a first heating of a mixture of an acicular magnetite dispersion, a colorant dispersion, a wax dispersion, and a core latex comprised of a first latex containing a vinyl crystalline polyester resin substantially free of crosslinking, and wherein said polyester is substantially dissolved in a vinyl monomer and polymerized to provide said first core latex resin, and which mixture contains a second crosslinked resin containing latex wherein said heating is accomplished in the presence of a coagulant to provide aggregates; adding a shell latex comprised of a polymer substantially free of crosslinking, and further heating said aggregates to provide coalesced toner particles, and wherein said further heating is at a higher temperature than said first heating.

Abstract: A process for generating on a substrate, such as a document, a security mark comprised of a glossy ink containing a colorant.

Abstract: A process for the preparation of toner by, for example, mixing a colorant, a latex, and a coagulant comprising cationic wax dispersion to provide, for example, a toner composition of high gloss images.

Abstract: A process involving heating a mixture of a colorant dispersion, a latex emulsion, and an optional wax dispersion in the presence of a coagulant containing a metal ion, a base, and an organic sequestering agent, and wherein said heating involves a first heating and a second heating, and wherein the second heating is at a higher temperature than the first heating; and wherein said higher temperature is equal to about or above about the Tg of polymer or resin contained in said latex emulsion.

Abstract: A process comprising heating a mixture of colorant and latex in the presence of a coagulant and a silicate salt, and wherein said heating comprises a first heating equal to or below about the glass transition temperature of a polymer contained in said latex, and a second heating equal to or about the glass transition temperature of a polymer contained in said latex; wherein said first heating enables the formation of aggregates and said second heating enables the fusion of said colorant and said polymer; and optionally wherein said silicate is contained in an alkali metal hydroxide.

Abstract: A chemical toner and an emulsion aggregation process for preparing the chemical toner, wherein the chemical toner is composed of: (a) a resin including a compound which exhibits a molecular weight polydispersity of from about 1.1 to about 3.0 (where the resin is produced by a stable free radical polymerization process); (b) an optional wax; and (c) a colorant, wherein the particle size of the chemical toner exhibits a geometric standard deviation of about 1.25 or less.

Abstract: A toner process involving the heating a mixture of an acicular magnetite dispersion, a colorant dispersion, a wax dispersion, a first latex containing a crosslinked resin, and a second latex containing a resin free of crosslinking in the presence of a coagulant to provide aggregates, stabilizing the aggregates with a silicate salt dissolved in a base, and further heating the aggregates to provide coalesced toner particles.

Abstract: A toner process comprised of heating a mixture of an acicular magnetite dispersion, a colorant dispersion, a wax dispersion, a first latex containing a crosslinked resin, a second latex containing a resin substantially free of crosslinking, a coagulant and a silica, and wherein the toner resulting possesses a shape factor of from about 120 to about 150.

Abstract: A process for the preparation of toner by, for example, mixing a latex with a colorant mixture comprised of colorant, an ionic surfactant, and a polytetrafluoroethylene; adding a coagulant; heating the resulting mixture below about the glass transition temperature (Tg) of the latex resin; adding a stabilizer; heating above about the Tg of the latex resin; and isolating the toner.

Abstract: A process comprising heating a mixture of colorant and latex in the presence of a coagulant and a silicate salt, and wherein said heating comprises a first heating equal to or below about the glass transition temperature of a polymer contained in said latex, and a second heating equal to or about the glass transition temperature of a polymer contained in said latex; wherein said first heating enables the formation of aggregates and said second heating enables the fusion of said colorant and said polymer; and optionally wherein said silicate is contained in an alkali metal hydroxide.