Abstract: The present invention is drawn to colorless toner compositions for overcoating a print having an ink jet ink image printed thereon. The colorless toner can comprise: a toner resin and at least two additives independently selected from the group consisting of ultraviolet absorbers, free radical inhibitors, thermal stabilizers, and combinations thereof, wherein the ratio of toner resin to total additive is from 1:1 to 99:1 by weight. The colorless toner can also be comprised of a charge control agent and/or a low-melt wax.

Abstract: Disclosed is a process for the preparation of trifluoromethanesulfonic acid anhydride by the steps of (1) forming a mixed anhydride comprising a trifluoromethanesulfonyl acyl residue and a carboxyl residue by contacting trifluoromethanesulfonic acid or a derivative thereof with a carboxyl compound selected from ketene, dialkyl ketenes, carboxylic acids, and derivatives of carboxylic acids and (2) subjecting the mixed anhydride to reactive distillation wherein the mixed anhydride undergoes disproportionation to produce triflic anhydride and a higher boiling carboxylic acid anhydride.

Abstract: The present invention is drawn to colorless toner compositions for overcoating a print having an ink jet ink image printed thereon. The colorless toner can comprise: a toner resin and at least two additives independently selected from the group consisting of ultraviolet absorbers, free radical inhibitors, thermal stabilizers, and combinations thereof, wherein the ratio of toner resin to total additive is from 1:1 to 99:1 by weight. The colorless toner can also be comprised of a charge control agent and/or a low-melt wax.

Abstract: Disclosed is a process for the preparation of trifluoromethanesulfonic acid anhydride by the steps of (1) forming a mixed anhydride comprising a trifluoromethanesulfonyl acyl residue and a carboxyl residue by contacting trifluoromethanesulfonic acid or a derivative thereof with a carboxyl compound selected from ketene, dialkyl ketenes, carboxylic acids, and derivatives of carboxylic acids and (2) subjecting the mixed anhydride to reactive distillation wherein the mixed anhydride undergoes disproportionation to produce triflic anhydride and a higher boiling carboxylic acid anhydride.

Abstract: An aqueous ink composition having insoluble dye dispersed uniformly throughout by means of a coupling/dispersive (dual function) agent. The coupling/dispersive agent is characterized by association with insoluble dye molecules as well as by solubilization in a water based carrier medium. The resulting ink is water fast because the coupling/dispersive agent probably evaporates during drying or migrates away.

Abstract: Disclosed is process for the production of symmetrical fluoro-substituted anhydrides from mixed or unsymmetrical anhydrides, i.e., wherein the two carboxylic acid acyl groups of the anhydrides are different, by subjecting an unsymmetrical anhydrides to reactive distillation to produce a lower boiling product comprising a symmetrical fluorocarboxylic acid anhydride and a higher boiling product comprising a second symmetrical anhydride. The process is particularly useful for the coproduction of trifluoroacetic anhydride (TFAA) and acetic anhydride (Ac2O) from ketene and trifluoroacetic acid wherein ketene and trifluoroacetic acid (TFA) are reacted to produce a mixed anhydride, acetyl trifluoroacetate (Ac-TFA), which then is subjected to reactive distillation to produce a vapor product comprising TFAA and a liquid product comprising Ac2O.

Abstract: Disclosed is a process for the preparation of alkanoate esters of hydroxybenzenesulfonic acids and salts thereof by the steps of (1) contacting or reacting phenol with an alkanoic acid in the presence of trifluoroacetic acid (TFA) and trifluoroacetic anhydride (TFAA) to produce a aryl alkanoate ester and (2) contacting the reaction mixture of step (1) with a sulfonating agent to convert the aryl alkanoate ester to an alkanoate ester of hydroxybenzenesulfonic acid. The process provides the economic advantage inherent in using the product of esterification of step (1) without Disolation in the sulfonation of step (2).

Abstract: This invention concerns a composition for use as an additive in an ink composition for an inkjet printer or a laserjet printer or as a coating on paper or plastic substrate used in an inkjet or laserjet printer which improves lightfastness and durability properties of the ink, which additive composition comprises: (A) at least one ultraviolet absorber, (B) at least one free radical inhibitor, (C) at least one antioxidant, and (D) at least one liquid carrier selected from the group consisting of water, organic liquid or combinations thereof. These compositions result in a print image that is more colorfast and durable than those of the conventional art.

Abstract: This invention concerns a composition for use as an additive in an ink composition for an inkjet printer or a laserjet printer or as a coating on paper or plastic substrate used in an inkjet or laserjet printer which improves lightfastness and durability properties of the ink, which additive composition comprises: (A) at least one ultraviolet absorber, (B) at least one free radical inhibitor, (C) at least one antioxidant, and (D) at least one liquid carrier selected from the group consisting of water, organic liquid or combinations thereof. These compositions result in a print image that is more colorfast and durable than those of the conventional art.

Abstract: Disclosed is an improved process for the continuous production of aromatic carboxylic acids by the liquid-phase oxidation of an alkyl aromatic compound with an oxygen-containing gas in the presence of oxidation catalyst which effectively utilizes the heat of reaction in the process of removing excess water generated from the reaction and minimizes the loss of solvent used as the carrier for the reaction catalyst. Operation of the process is improved by removing reactor off-gas directly into a water removal column for distillation. A portion of distillate condensed from the overhead aqueous vapors of the water removal column is refluxed to the fractionating zone of the water removal column.

Abstract: An ink jet ink formulated to substantially reduce or eliminate start-up problems when an ink jet apparatus is initially discharged. The ink comprises at least two fluid components. The components have been matched to provide an ink that substantially maintains its initial formulation despite evaporation of the components.

Abstract: An ink jet ink formulated to substantially reduce or eliminate start-up problems when an ink jet apparatus is initially discharged. The ink comprises at least two fluid components. The components have been matched to provide an ink that substantially maintains its initial formulation despite evaporation of the components.