Abstract: A method and apparatus for delivering solvent free marking material to a receiver is provided. A printhead includes a discharge device having an inlet and an outlet with a portion of the discharge device defining a delivery path. An actuating mechanism is moveably positioned along the delivery path. A material selection device has an inlet and an outlet with the outlet of the material selection device being connected in fluid communication to the inlet of the discharge device. The inlet of the material selection device is adapted to be connected to a pressurized source of a thermodynamically stable mixture of a fluid and a marking material, wherein the fluid is in a gaseous state at a location beyond the outlet of the discharge device. A calibration station is positioned relative to the printhead. Additionally, or alternatively, a cleaning station is positioned relative to the printhead.

Abstract: A method and apparatus for delivering solvent free marking material to a receiver is provided. A printhead includes a discharge device having an inlet and an outlet with a portion of the discharge device defining a delivery path. An actuating mechanism is moveably positioned along the delivery path. A material selection device has an inlet and an outlet with the outlet of the material selection device being connected in fluid communication to the inlet of the discharge device. The inlet of the material selection device is adapted to be connected to a pressurized source of a thermodynamically stable mixture of a fluid and a marking material, wherein the fluid is in a gaseous state at a location beyond the outlet of the discharge device.

Abstract: A method of forming a color filter and a color filter are provided. The method includes providing a mixture of a color filter material and a compressed fluid; providing a substrate; providing a printhead adapted to deliver the mixture of the color filter material and the compressed fluid toward the substrate; positioning the printhead in a predetermined location relative to the substrate; and ejecting the mixture of the color filter material and the compressed fluid through the printhead toward the substrate, wherein the color filter material becomes free of the compressed fluid prior to the color filter material contacting the substrate at the predetermined location.

Abstract: A process for the preparation of a radiation-sensitive silver halide emulsion comprised of high bromide tabular silver halide grains is described, the process comprising: (a) providing in a stirred reaction vessel a dispersing medium and high bromide silver halide tabular seed grains, the seed grains comprising at least 5 mole % of the final emulsion silver, and (b) precipitating a silver halide shell which comprises at least 5 mole % of the final emulsion silver onto the seed grains by introducing at least a silver salt solution into the dispersing medium at a rate such that the normalized shell molar addition rate, Rs, is above 1.

Abstract: An imaging composition comprises a mixture of a fluid and a functional material; wherein the fluid is compressed and the functional material is an electroluminescent material which is dissolved, dispersed and/or solubilized in the compressed fluid; and wherein the mixture is thermodynamically stable or thermodynamically metastable or both.

Abstract: An imaging composition comprising a mixture of a fluid and a functional material; wherein the fluid is compressed and the functional material is dispersed and/or solubilized in the compressed fluid; and wherein the mixture is thermodynamically stable or thermodynamically metastable or both.

Abstract: An apparatus and method for mixing at least two reactants is taught wherein a first reactant is delivered to a reaction zone through a first annular flow path and a second reactant is delivered to the reaction zone through a second annular flow path. The first and second annular flow paths are concentric with one another and the two reactants intermix with one another in the reaction zone. There is a rotating disc having a surface, defining one boundary of the reaction zone. The flow of the first and second reactants across the rotating disc and through the reaction zone is generally radial and has a residence time in the reaction zone of not more than about 100 msec, and preferably not more than about 50 msec. The reaction zone resides in a main reactor vessel and there is a driven agitator residing in the main reactor vessel to stir the contents thereof.

Abstract: An apparatus and method for mixing at least two reactants is taught wherein a first reactant is delivered to a reaction zone through a first annular flow path and a second reactant is delivered to the reaction zone through a second annular flow path. The first and second annular flow paths are concentric with one another and the two reactants intermix with one another in the reaction zone. There is a rotating disc having a surface, defining one boundary of the reaction zone. The flow of the first and second reactants across the rotating disc and through the reaction zone is generally radial and has a residence time in the reaction zone of not more than about 100 msec, and preferably not more than about 50 msec. The reaction zone resides in a main reactor vessel and there is a driven agitator residing in the main reactor vessel to stir the contents thereof.

Abstract: An apparatus and method for mixing at least two reactants is taught wherein a first reactant is delivered to a reaction zone through a first annular flow path and a second reactant is delivered to the reaction zone through a second annular flow path. The first and second annular flow paths are concentric with one another and the two reactants intermix with one another in the reaction zone. There is a rotating disc having a surface, defining one boundary of the reaction zone. The flow of the first and second reactants across the rotating disc and through the reaction zone is generally radial and has a residence time in the reaction zone of not more than about 100 msec, and preferably not more than about 50 msec. The reaction zone resides in a main reactor vessel and there is a driven agitator residing in the main reactor vessel to stir the contents thereof.

Abstract: An apparatus and method for mixing at least two reactants is taught wherein a first reactant is delivered to a reaction zone through a first annular flow path and a second reactant is delivered to the reaction zone through a second annular flow path. The first and second annular flow paths are concentric with one another and the two reactants intermix with one another in the reaction zone. There is a rotating disc having a surface, defining one boundary of the reaction zone. The flow of the first and second reactants across the rotating disc and through the reaction zone is generally radial and has a residence time in the reaction zone of not more than about 100 msec, and preferably not more than about 50 msec. The reaction zone resides in a main reactor vessel and there is a driven agitator residing in the main reactor vessel to stir the contents thereof.

Abstract: A process for the preparation of a radiation-sensitive silver halide emulsion comprised of high chloride cubical silver halide grains containing from 0.05 to 3 mole percent iodide, based on total silver, where the iodide is incorporated in the grains in a controlled, non-uniform distribution forming a core containing at least 50 percent of total silver, an iodide free surface shell having a thickness of greater than 50 Å, and a sub-surface shell that contains a maximum iodide concentration is disclosed, the process comprising: (a) providing in a stirred reaction vessel a dispersing medium and host high chloride silver halide cubical grains comprising a speed enhancing amount of iodide, and (b) precipitating silver halide onto the host grains by introducing at least a silver salt solution into the dispersing medium at a rate such that the normalized molar addition rate, Rn, is above 3.

Abstract: A radiation-sensitive emulsion is disclosed comprised of cubical silver halide grains containing from 0.05 to 3 mole percent iodide, based on total silver, and an iridium coordination complex dopant, wherein (i) the iodide is incorporated in the grains in a controlled, non-uniform distribution forming a core containing at least 50 percent of total silver, an iodide free surface shell having a thickness of greater than 50 Å, and a sub-surface shell that contains a maximum iodide concentration, and (ii) the iridium coordination complex dopant is incorporated into the sub-surface shell or into a region of the core extending up to 60% of the total silver into the grain from the sub-surface shell. Speed and reciprocity of iodochloride emulsions can be improved by localized addition of known in the art reciprocity-controlling iridium dopants in relation to high iodide region of the grain.

Abstract: A method is disclosed of manufacturing radiation-sensitive emulsions by a pulsed flow double-jet process in which high chloride silver halide grains are grown in the presence of a thioether ripening agent in the dispersing medium in the reaction vessel the silver halide grains exhibiting an average grain roundness coefficient n in the range of from 2 to less than 15.

Abstract: A method is disclosed of manufacturing a radiation-sensitive tabular grain emulsion comprised of (a) providing in a stirred reaction vessel a host tabular grain emulsion containing greater than 50 mole percent bromide, based on silver, and a speed enhancing amount of iodide and (b) then introducing a silver salt solution into the stirred reaction vessel, wherein (1) the silver salt solution is introduced into the stirred reaction vessel at a rate sufficient to create a new grain population, (2) halting introduction of the silver salt solution for a time sufficient to allow the new grain population to be ripened out, and (3) repeating steps (1) and (2) from 3 to 20 times until silver introduced in steps (1) and (2) amounts to from 5 to 50 percent of total silver forming the radiation-sensitive tabular grain emulsion.

Abstract: A radiation-sensitive emulsion is disclosed in which at least 70 percent of total grain projected area is accounted for by tabular grains (a) having {100} major faces, (b) containing greater than 50 mole percent chloride, based on silver, (c) having a mean equivalent circular diameter in the range of from 2.0 to 5.0 .mu.m, and (d) exhibiting a mean thickness of 0.1 .mu.m or less.The emulsion is prepared by (a) precipitating up to 10 percent of the total silver forming the high chloride {100} tabular grains to create a first grain population under conditions that form a crystal lattice structure that favors the growth of high chloride {100} tabular grains, (b) thereafter rapidly introducing silver and halide ions to create a second grain population, and (c) growing the first grain population to create the high chloride {100} tabular grains by ripening out the second grain population.