Abstract: Silver halide photographic element comprising a support bearing a light sensitive silver halide emulsion layer and a cyclic azole dye forming coupler associated with a stabilizer combination comprising:i) a compound having the following Formula S: ##STR1## and ii) a compound having the following Formula I: ##STR2## wherein: R.sub.3 represents an aryl group or a heterocyclic group;Z.sub.1 and Z.sub.2 each represent an alkylene group having 1 to 3 carbon atoms provided that the total number of carbon atoms in the ring is 3 to 6;n is an integer of 1 or 2;L represents a divalent linking group;R.sub.4 represents an alkyl, alkenyl or aryl group;w represents an integrer of 1 to 5;y represents 0 or 1provided that if w is more than 1, then the --L.sub.y R.sub.4 groups may be the same or different, and two --L.sub.y R.sub.4 groups may be joined to form a ring; and that the total number of carbon atoms in --L.sub.y R.sub.4 is at least 8.

Abstract: This invention relates to a silver halide photographic element comprising a silver halide emulsion precipitated and/or chemically sensitized in the presence of an sulfenimide compound represented by the formula: ##STR1## wherein M represents the atoms necessary to form, with R.sup.1 and R.sup.2, a five or six-membered ring or a multiple ring system; w is 1 or 0, wherein when w is 0, R.sup.1 and R.sup.2 are independently substituted or unsubstituted aliphatic, aromatic or heterocyclic groups, and when w is 1, R.sup.1 and R.sup.2 are independently carbonyl or sulfonyl groups; R.sup.3 is independently a substituted or unsubstituted aliphatic, aromatic or heterocyclic group and x is 0 or 1.

Abstract: This invention provides a thermally processable imaging element comprising a support and a thermographic or photothermographic imaging layer, said imaging layer comprising a sulfenimide compound represented by the formula: ##STR1## wherein M represents the atoms necessary to form, with R.sup.1 and R.sup.2, a five or six-membered ring or a multiple ring system; w is 1 or 0, wherein when w is 0, R.sup.1 and R.sup.2 are independently substituted or unsubstituted aliphatic, aromatic or heterocyclic groups, and when w is 1, R.sup.1 and R.sup.2 are independently carbonyl or sulfonyl groups; R.sup.3 is independently a substituted or unsubstituted aliphatic, aromatic or heterocyclic group and x is 0 or 1.In one embodiment the thermally processable imaging element comprises:(a) photographic silver halide, and(b) an image-forming combination comprising(i) an organic silver salt oxidizing agent, with(ii) a reducing agent for the organic silver salt oxidizing agent.

Abstract: This invention relates to a silver halide photographic element for digital exposure comprising a cubical silver chloride emulsion precipitated and/or chemically sensitized in the presence of an aryliodonium compound represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 and R.sup.3 are independently H, or aliphatic, aromatic or heterocyclic groups, alkoxy groups, hydroxy groups, halogen atoms, aryloxy groups, alkylthio groups, arylthio groups, acyl groups, sulfonyl groups, acyloxy groups, carboxyl groups, cyano groups, nitro groups, sulfo groups, alkylsulfoxide or trifluoralkyl groups, or any two of R.sup.1, R.sup.2 and R.sup.3 together represent the atoms necessary to form a five or six-membered ring or a multiple ring system;R.sup.4 is a carboxylate salt or 0.sup.- ; w is 0 or 1; and X.sup.- is an anionic counter ion; with the proviso that when R.sup.3 is a carboxyl or sulfo group, w is 0 and R.sup.4 is 0.sup.-.

Abstract: This invention relates to a silver halide photographic element comprising a silver halide emulsion precipitated and/or chemically sensitized in the presence of an aryliodonium compound represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 and R.sup.3 are independently H, or aliphatic, aromatic or heterocyclic groups, alkoxy groups, hydroxy groups, halogen atoms, aryloxy groups, alkylthio groups, arylthio groups, acyl groups, sulfonyl groups, acyloxy groups, carboxyl groups, cyano groups, nitro groups, sulfo groups, alkylsulfoxide or trifluoralkyl groups, or any two of R.sup.1, R.sup.2 and R.sup.3 together represent the atoms necessary to form a five or six-membered ring or a multiple ring system;R.sup.4 is a carboxylate salt or 0.sup.- ; w is 0 or 1; and X.sup.- is an anionic counter ion; with the proviso that when R.sup.3 is a carboxyl or sulfo group, w is 0 and R.sup.4 is 0.sup.-.

Abstract: This invention provides a thermally processable imaging element comprising a support and a thermographic or photothermographic imaging layer, said imaging layer comprising an aryliodonium compound represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 and R.sup.3 are independently H, or aliphatic, aromatic or heterocyclic groups, alkoxy groups, hydroxy groups, halogen atoms, aryloxy groups, alkylthio groups, arylthio groups, acyl groups, sulfonyl groups, acyloxy groups, carboxyl groups, cyano groups, nitro groups, sulfo groups, alkylsulfoxide or trifluoralkyl groups, or any two of R.sup.1, R.sup.2 and R.sup.3 together represent the atoms necessary to form a five or six-membered ring or a multiple ring system;R.sup.4 is a carboxylate salt or 0.sup.- ; w is 0 or 1; and X.sup.- is an anionic counter ion; with the proviso that when R.sup.3 is a carboxyl or sulfo group, w is 0 and R.sup.4 is 0.sup.-.

Abstract: A thermal dye transfer assemblage comprising:(a) a dye-donor element comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder, the dye being a deprotonated cationic dye which is capable of being reprotonated to a cationic dye having a N-H group which is part of a conjugated system, and(b) a dye-receiving element comprising a support having thereon a polymeric dye image-receiving layer, the dye-receiving element being in a superposed relationship with the dye-donor element so that the dye layer is in contact with the polymeric dye image-receiving layer, the polymeric dye image-receiving layer containing a compound capable of generating an acid upon exposure to UV light, the acid being capable of reprotonating the deprotonated cationic dye.

Abstract: Sulfonium and oxysulfonium salts, useful as photoinitiators, have directly attached to the sulfur atom thereof:at least one aromatic or heterocyclic aromatic substituent containing at least 14 aromatic atoms and having a removable positive hydrogen ion, said substituent exhibiting a higher energy occupied molecular orbital than at least one other substituent directly attached to said sulfur atom;and at least one substituent comprising an electron withdrawing group and exhibiting a lower energy unoccupied molecular orbital than at least one other substituent directly attached to said sulfur atom;said salt being capable, upon exposure to visible radiation, of undergoing irreversible intramolecular rearrangement to form a Bronsted acid comprising the anion of said salt and said removable positive hydrogen ion.

Abstract: There is disclosed a recordable optical element that includes a dye. The element has a substrate and on the surface of the substrate, a dye containing recording layer and a light reflecting layer. The dye is a leuco dye which upon exposure to a thermally-generated acid becomes an absorption dye.

Abstract: A composition of matter including an onium salt and a method of forming images. The onium salt has a chromophore which absorbs ultraviolet radiation, an S, Se, As, N or P atom which is free of substituents exhibiting a higher energy occupied molecular orbital than the chromophore; an insulating group which links the chromophore to the S, Se, As, N or P atom of the salt and substantially prevents .pi. resonance from the chromophore through the S, Se, As, N or P atom; and an anion. The onium salt is capable of forming a Bronsted acid upon exposure to ultraviolet radiation in the presence of a proton source. In the method of forming images, the onium salt is exposed to ultraviolet radiation in the presence of a proton source, to convert said onium salt to a Bronsted acid.

Abstract: Sulfonium, selenonium, arsonium, ammonium and phosphonium salts, useful as photoinitiators, comprise:a chromophore which absorbs visible radiation, the chromophore (1) having a removable positive hydrogen ion and (2) exhibiting a higher energy occupied molecular orbital than at least one other substituent attached to the S, Se, As, N or P atom of the salt;an insulating group which links the chromophore to the S, Se, As, N or P atom of the salt, the insulating group essentially preventing .pi. resonance between the chromophore and the other substituents in the salt;at least one substituent comprising an electron withdrawing group and exhibiting a lower unoccupied molecular orbital than the chromophore; and,an anion;the salts being capable, upon exposure to visible radiation, of forming a Bronsted acid.

Abstract: Bis-sulfonium, -selenonium, -arsonium, -ammonium, and -phosphonium salts useful as photoinitiators, comprise:an aromatic or heterocyclic aromatic group which absorbs UV or visible radiation and which exhibits a higher energy occupied molecular orbital than at least one other substituent attached to each of the S, Se, As, N or P atoms of said salt;at least one substituent, attached to each of the S, Se, As, N or P atoms of said salt, which comprises an electron-withdrawing group which causes the lowest unoccupied molecular orbital to be localized on the substituent and the S, Se, As, N or P atom of the salt;an insulating group which links said aromatic or heterocyclic aromatic group to each of the S, Se, As, N, or P atoms of said salt, said insulating group essentially preventing .pi.

Abstract: Compositions of matter are provided which comprise a material curable by a Bronsted acid, and a photoinitiator salt having the formula: ##STR1## wherein: R.sup.1 represents an electron-donating chromophore group which absorbs visible radiation and which exhibits a higher energy occupied molecular orbital than at least one of R", R'" and R"";R" represents the same substituent as R' or R'", an optionally substituted aryl group or an optionally substituted alkyl group having from 1 to 18 carbon atoms;R'" represents an electron-withdrawing alkyl, aryl or heterocyclic group;R.sub.1 and R.sub.2 each, independently, represents hydrogen or an electron-donating group;J represents an S, Se, As, N or P atom; andwhen J represents As, N or P, R"" represents the same substituent as R', R" or R'", and when J represents an S or Se atom, R"" represents O or an electron pair; andW.sup..THETA.

Abstract: Sulfonium and oxysulfonium salts, useful as photoinitiators, have directly attached to the sulfur atom thereof:at least one aromatic or heterocyclic aromatic substituent containing at least 14 aromatic atoms and having a removable positive hydrogen ion, said substituent exhibiting a higher energy occupied molecular orbital than at least one other substituent directly attached to said sulfur atom;and at least one substituent comprising an electron withdrawing group and exhibiting a lower energy unoccupied molecular orbital than at least one other substituent directly attached to said sulfur atom;said salt being capable, upon exposure to visible radiation, of undergoing irreversible intramolecular rearrangement to form a Bronsted acid comprising the anion of said salt and said removable positive hydrogen ion.

Abstract: A dry process for the manufacture of microelectronic devices from a work piece, which may be carried out entirely in a vacuum chamber, and which involves the coating of the work piece with a thin film of a monomer, selectively polymerizing the monomer according to a pattern of the microelectronic device desired, heating the layer of monomer to evaporate unpolymerized monomer to expose electronic circuit materials thereunder, removing the exposed electronic circuit materials, and stripping the polymerized monomer resist from the surface of the work piece.

Abstract: Electrostatographic developer compositions for use in developing electrostatic latent images wherein the triboelectric charging potential of functional polymers employed in the carrier materials are controlled through chemical alteration of active hydrogen containing materials by silylation. The controlled variation of the triboelectric behavior of functional polymers by silylation provides a means of attaining optimum triboelectric responses in development systems.

Abstract: Disclosed is an imaging method based upon the selective exposure of a select pair of photoactive materials to actinic radiation. According to this method, charge exchange between materials of a photosensitive mixture results in the selective decomposition of one of the components of said mixture. In the event that the above materials are dispersed within a polymeric film, the selective decomposition of one of these dispersed components will be manifest by changes induced in the polymeric film. Such changes in the characteristic properties of the film will, of course, vary depending upon the content of the dispersed photosensitive components in the film and the extent of decomposition of one of said materials.

Abstract: Electrostatographic developer compositions for use in developing electrostatic latent images wherein the triboelectric charging potential of functional polymers employed in the toner materials are controlled through chemical alteration of active hydrogen containing materials by silylation. The controlled variation of the triboelectric behavior of functional polymers by silylation provides a means of attaining optimum triboelectric responses in development systems.

Abstract: Electrostatographic developer compositions for use in developing electrostatic latent images wherein the triboelectric charging potential of functional polymers employed in the carrier materials are controlled through chemical alteration of active hydrogen containing materials by silylation. The controlled variation of the triboelectric behavior of functional polymers by silylation provides a means of attaining optimum triboelectric responses in development systems.

Abstract: An imaging method based upon visible light induced changes in a photochromic imaging layer containing a dispersion of at least one of the following compounds: ##SPC1##Where a, b, c and d are independently selected from the group consisting of hydrogen, halogen, NO.sub.2, NH.sub.2, lower alkyl, phenyl, phenoxy, lower alkoxy, carboxy, hydroxyl, lower alkyl esters and aryl esters,In an organic film forming binder.