Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The present embodiments relate to processes of preparing toner particles. More specifically, the processes produce toner particles having high pigment loadings and desired circularity. The processes include diluting the aggregated particulate mixture prior to coalescence.

Abstract: 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.

Abstract: A compound of the formula wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 are each independently selected from a member of the group consisting of hydrogen, alkyl, aryl, arylalkyl, alkylaryl, straight-chain hydrocarbon, branched-chain hydrocarbon, halogen, and mixtures thereof; wherein X1, X2, X3, X4, and X5 are each independently selected from a member of the group consisting of hydrogen, alkyl, aryl, arylalkyl, alkylaryl, alkoxyl, aryloxy, straight-chain hydrocarbon, branched-chain hydrocarbon, halogen, and mixtures thereof; and wherein the compound can optionally be a mixture of cis and trans isomers wherein only one of R1 to R10 is a non-hydrogen group.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A compound of the formula wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 are each independently selected from a member of the group consisting of hydrogen, alkyl, aryl, arylalkyl, alkylaryl, straight-chain hydrocarbon, branched-chain hydrocarbon, halogen, and mixtures thereof; wherein X1, X2, X3, X4, and X5 are each independently selected from a member of the group consisting of hydrogen, alkyl, aryl, arylalkyl, alkylaryl, alkoxyl, aryloxy, straight-chain hydrocarbon, branched-chain hydrocarbon, halogen, and mixtures thereof; and wherein the compound can optionally be a mixture of cis and trans isomers wherein only one of R1 to R10 is a non-hydrogen group.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.