Abstract: A radiation-sensitive element is disclosed including a radiation-sensitive layer comprised of a cobalt(III)complex and a photoreductant. A process is disclosed in which the photoreductant is converted to a reducing agent by exposure to electromagnetic radiation longer than 300 nanometers. The reducing agent is then reacted with a cobalt(III)complex. Images can be recorded directly within the radiation-sensitive layer or in a separate image-recording element or layer by use of the residual cobalt(III)complex not exposed or one or more of the reaction products produced by exposure. By using the ammonia liberated from ammine ligand containing cobalt(III)complexes on exposure in combination with imagewise and uniform exposures, positive or negative images can be formed in diazo image-recording layers or elements associated with the radiation-sensitive layer. By the selection of amine-responsive reducing agent precursors, the amines released by the cobalt(III)complexes cause an amplified image.

Abstract: A broadband laser recording and data storage medium for direct read after writing, formed from a photosensitive silver-halide emulsion in four steps. First, a non-saturating actinic radiation exposure is used to create latent images. A normal photographic development is used to produce a medium of gray neutral density. The surface of the remaining silver halide is fogged in a water or alcohol based solution to create a very thin layer of silver precipitating nuclei on the surface. Finally, a single-step, negative silver diffusion transfer process is used to dissolve the unexposed and undeveloped silver halide, forming silver ion complexes.

Abstract: A process for producing a lithographic printing plate from a light-sensitive lithographic printing plate comprising a support, a non-silver light-sensitive layer which is provided on the support and which forms a water-insoluble lipophilic image and a gelatino-silver halide light-sensitive emulsion layer on the non-silver light-sensitive layer, which process comprises the steps of:(a) imagewise exposing the light-sensitive lithographic printing plate;(b) developing the gelatino-silver halide light-sensitive emulsion layer;(c) exposing the non-silver light-sensitive layer to light;(d) washing out the gelatino-silver halide light-sensitive emulsion layer in the presence of a proteolytic enzyme; and(e) developing the non-silver light-sensitive layer.

Abstract: A diffusion control layer comprising a polymerization product of a monomer capable of undergoing .beta.-elimination in an alkaline environment is disclosed for use in diffusion transfer film units, as an interlayer or overcoat in photosensitive elements, or as a timing layer or overcoat in image-receiving elements.

Abstract: A photographic light-sensitive material is described comprising a support having thereon at least two silver halide photographic emulsion layers capable of forming a silver image upon treatment with an alkaline processing solution in the presence of a developing agent for silver halide after exposure, said material containing an interlayer positioned between said emulsion layers, wherein the improvement comprises said interlayer containing a complex which is formed from a mixture of hydroquinone derivatives having a solidifying point of 100.degree. C. or less, and which are different compounds from the developing agent for silver halide used in the treatment of the material, and a homopolymer or copolymer containing a recurring unit represented by formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; Q represents of chemical bond, --COOR.sub.2 -- or --CONHR.sub.2 --; A represents a chemical bond or an oxygen atom; B represents a chemical bond or ##STR2## D represents --CH=CH).

Abstract: An improved process for forming an embossed pattern through the use of a writing concentrated beam opening holes in a film capable of undergoing residue free evaporation. A layer of photoresist is overlayed with the film and upon being exposed and processed the layer supplies the prospective embossed pattern.

Abstract: A method of making flyleads for video disc playback cartridges wherein a dry film resist is coated on both sides of a metal sheet, one side is exposed through a patterned mask, the patterned side is developed and etched, and the remaining photoresist is removed.

Abstract: The invention provides a novel method for the preparation of a printing plate suitable for dry planographic printing without supply of dampening water utilizing the ink-repellency of a cured silicone resin. In the inventive method, a base plate provided with two successive layers of a first adhesive agent and a photocurable organopolysiloxane composition is overlaid with a UV-transparent covering sheet provided with a layer of a second adhesive agent in such a manner that the layers of the organopolysiloxane composition and the second adhesive agent are in direct contact with each other and irradiated with UV light pattern-wise through the sheet.

Abstract: Photocross-linkable, organic solvent-soluble polymers having a Tg greater than 200.degree. C. are disclosed. The polymers contain sufficient radiation-sensitive cross-linkable units to render the polymers insoluble in organic solvents on exposure to radiation to which the cross-linkable units are sensitive. Also disclosed are supports, particularly supports having a radiation-sensitive surface, having thereon a layer of the described photo-corss-linkable polymers. The polymers are capable of receiving heat-transferrable dyes and are useful in forming color filter arrays for solid-state imaging devices. A particularly convenient method of forming solid-state color imaging devices having a layer containing an array of color filters is also disclosed.

Abstract: A process for preparing a photosensitive lithographic printing plate precursor wherein a layer containing a water-insoluble lipophilic resin is disposed on a support having a hydrophilic surface, the coating of a silver halide emulsion is directly applied to said layer and dried, said coating of silver halide emulsion is dried with hot air at 60.degree. to 150.degree. C. without permitting the same to set.

Abstract: In a color diffusion transfer photographic element containing at least one dye-releasing redox compound-containing layer associated with a silver halide photographic emulsion and capable of releasing a diffusible dye as a result of a redox reaction with the oxidation product of a developing agent produced by the development of silver halide with an alkaline processing solution, and at least one layer containing an antistain agent, the improvement which comprises said dye-releasing redox compound-containing layer associated with said silver halide photographic emulsion being spaced from the adjacent interlayer containing said antistain agent by a spacer layer essentially containing a hydrophilic colloid or by a silver halide emulsion layer having substantially the same spectral sensitivity as that of the associated silver halide emulsion.

Abstract: This invention relates to a multilayered printing plate consisting of (1) a photosensitive printing layer comprising an elastomeric polymer, an ethylenically unsaturated monomer and a photoinitiator, (2) an elastomeric backing layer which is partially photocured and made from a vinyl terminated prepolymer containing a photoinitiator and (3) an optional supporting layer. The multilayer structure is useful for flexographic printing.

Abstract: A method is disclosed of photographically processing a negative-working imagewise exposed silver halide photographic element to produce a reversal dye image comprising (a) developing the imagewise exposed silver halide with an electron transfer agent to produce oxidized electron transfer agent which reacts with a competing oxidizable substance and (b) developing silver halide remaining with the electron transfer agent in the presence of a dye image providing compound capable, after the competing oxidizable substance has been depleted, of reacting with the oxidized electron transfer agent to produce a reversal dye image. Image transfer film units are disclosed useful in the practice of this method. Such film units include those containing in addition to the competing oxidizable substance and initially immobile dye image providing compound a layer containing additional silver halide and a scavenger separating the additional silver halide from the immobile dye image providing compound.

Abstract: A lift-off mask for the patterned deposition of thin films comprises a three layer sandwich of photoresist-aluminum-photoresist on a substrate. Deposition occurs through an opening in the top photoresist layer and through larger size (i.e., undercut) openings in the aluminum and bottom photoresist layers. The top layer of photoresist remains on the mask during deposition and defines the pattern, the bottom photoresist is fully exposed and in the openings provides an undercut which prevents edge tearing during lift-off, and the aluminum layer (typically 50-200 Angstroms thick) protects the bottom layer of photoresist from dissolving during formation of the top photoresist layer. Also described is a technique in which the edges of thin films are tapered by depositing them from a direction oblique to the substrate surface and by rotating the substrate during deposition. These techniques are specifically discussed in the context of fabricating Josephson junction devices.

Abstract: Original plates for producing dry planographic printing plates comprising (a) a support, and over and in contact with the support, (b) a light-sensitive adhesive layer made of a photopolymerizable composition comprising one or more photopolymerizable ethylenically unsaturated compounds and one or more photopolymerization initiators and overlying said light-sensitive adhesive layer, (c) a light-sensitive ink-repellent layer made of a silicone composition comprising one or more silicones, one or more photopolymerizable ethylenically unsaturated compounds and one or more photopolymerization initiators. Dry planographic printing plates can be produced from the original plates by image-wise exposing to actinic light and developing.

Abstract: To reduce silver coating weight in photographic silver halide elements (e.g., medical X-ray films) the density of the silver image is increased by forming a black-toned, direct positive image in a photopolymer layer on the reverse side from the silver image.

Abstract: A color photographic material comprising a support and at least one layer thereon containing at least one compound of formula [I]: Formula [I] ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 each are defined in the specification and claims of this application.The compound of formula [I] is incorporated in a color photographic material to prevent the discoloration and fading-in-color of the color photographic material.

Abstract: A relief producing laminate having an over-lamina comprised of an unsaturated natural-like rubber composition characterized by relief differentiation in response to patterned radiation exposure and an under-lamina comprised of a resilient composition and adhered to the over-lamina. The term "natural-like rubber" as used herein includes both natural and synthetic rubbers which exhibit creep as a result of stress relaxation after being cast or formed.The over-lamina is preferably a butadiene homopolymer or copolymer resin composition, more preferably a halogenated butadiene composition and most preferably a neoprene composition. The composition preferably includes a thiol, a monomer and a photoinitiator.The under-lamina composition may be a woven textile or a polymer and is preferably a monoalkenyl aromatic-diene block copolymer resin composition. It is preferably radiation cured and preferably includes a monomer and a photoinitiator.

Abstract: A three-layer blank and a process are disclosed for the formation of frames of metal beam leads that are bonded to integrated circuit chips. The blank incorporates an improved negative-working resist having adhesion to the metal as well as flexibility. The process of forming the leads includes the step of fully photopolymerizing the resist to avoid outgassing of residual monomer as would otherwise occur during bonding.

Abstract: A photosensitive medium for storing optical information relating to the intensity and polarization of incident light, consisting of an inorganic multilayer film comprising multiple thin layers of silver chloride to which additive coloration has been imparted by chemical means, is described.

Abstract: A novel dispersion imaging material comprising a substrate, a sublayer thereon comprising at least 70% by weight of a member selected from palladium, gold, germanium and combinations thereof and having a thickness of 5 A to 200 A, and a main imaging layer on said sublayer comprising at least 50% by weight of tin, and optionally as the outermost layer a protective layer comprising an organic polymer. The sublayer modifies the layer structure of the tin-based main imaging layer. The imaging material has a high safety in respect of toxicity as well as an excellent gradation and a high sensitivity. The imaging material can form thereon an image by a dry process even in a light room without the conventional development and fixation steps.

Abstract: Optically bleachable multilayer films containing additively colored silver chloride which exhibit high infrared transmittance and good bleaching sensitivity, and optical information storage media incorporating such films, are described.

Abstract: A method for producing visible images in certain charge sensitive, dry processable recording elements. Image recording is accomplished by flowing, in a resistive recording element containing a reducible metal compound, an imagewise pattern of electrical current of sufficient magnitude to produce therein a storable latent image. The metal compound in the latent image areas is subsequently reduced by a dry development technique to produce a visible image.

Abstract: A method for preparing aluminum based lithographic printing plates which comprises treating at least one surface of an aluminum base sheet with lithographically suitable, photosensitive, preferably water-soluble, diazo composition and then applying to said surface a lithographically suitable photopolymerizable composition to yield the desired photosensitive lithographic printing plate of improved characteristics.

Abstract: A multipart photosensitive element having a predetermined saturation density including at least two partial record portions for forming a full record, each partial record portion controlling a preselected density range of the full record; all of the partial record portions combining to produce the predetermined saturation density of the full record; at least one of the partial record portions including a fixed contrast emulsion and at least one of the partial record portions including a variable contrast emulsion for varying the contrast of that partial record portion over its preselected density range, each of the variable contrast emulsions being photoresponsive in a different spectral region from the other variable contrast emulsions in the other partial record portions for independently selectively varying the contrast in each of the partial record portions including a variable contrast emulsion.

Abstract: A lift-off mask for the patterned deposition of thin films comprises a three layer sandwich of photoresist-aluminum-photoresist on a substrate. Deposition occurs through an opening in the top photoresist layer and through larger size (i.e., undercut) openings in the aluminum and bottom photoresist layers. The top layer of photoresist remains on the mask during deposition and defines the pattern, the bottom photoresist is fully exposed and in the openings provides an undercut which prevents edge tearing during lift-off, and the aluminum layer (typically 50-200 Angstroms thick) protects the bottom layer of photoresist from dissolving during formation of the top photoresist layer. Also described is a technique in which the edges of thin films are tapered by depositing them from a direction oblique to the substrate surface and by rotating the substrate during deposition. These techniques are specifically discussed in the context of fabricating Josephson junction devices.

Abstract: A dry process high sensitivity imaging film includes a solid, high optical density and substantially opaque film of dispersion imaging material deposited on a substrate. The film of dispersion imaging material comprises a plurality of separate layers of different and substantially mutually insoluble metal components having relatively high melting points and relatively low melting point eutectics, and interfaces between said layers having relatively low melting points.

Abstract: Removable opaque backing layers for photographic silver halide elements are described. The opaque backing layer contains carbon black and a scavenging agent for impurities of the carbon black selected from fine-rain photosensitive silver halides, silver nitrate, and halides of iron, zinc and mercury. The scavenger prevents the impurities from fogging the photographic silver halide emulsion layers of the elements.

Abstract: The silver halide coating weight of a lithographic element can be reduced by ca. 40% by coating two layers of gelatino-silver halide emulsion on a support, and dividing a speed-adjusting polyoxyethylene compound unequally between the two layers.

Abstract: A radiation-sensitive element is disclosed including a radiation-sensitive layer comprised of a cobalt(III)complex and a photoreductant. A process is disclosed in which the photoreductant is converted to a reducing agent by exposure to electromagnetic radiation longer than 300 nanometers. The reducing agent is then reacted with a cobalt(III)complex. Images can be recorded directly within the radiation-sensitive layer or in a separate image-recording element or layer by use of the residual cobalt(III)complex not exposed or one or more of the reaction products produced by exposure. By using the ammonia liberated from ammine ligand containing cobalt(III)complexes on exposure in combination with imagewise and uniform exposures, positive or negative images can be formed in diazo image-recording layers or elements associated with the radiation-sensitive layer. By the selection of amine-responsive reducing agent precursors, the amines released by the cobalt(III) complexes cause an amplified image.

Abstract: A photographic speed-increasing concentration of a certain organic photographic speed-increasing electron acceptor provides increased photographic speed in a charge-sensitive recording composite material having an ohmic resistivity of at least about 1.times.10.sup.10 ohm-cm. The charge-sensitive recording material can comprise (a) a first electrically conducting layer in association with (b) a photoconductor layer, (c) an electrically activated recording layer comprising an image-forming combination of (i) an organic, heavy metal salt oxidizing agent with (ii) a reducing agent and (iii) the described speed-increasing electron acceptor, and a binder, and (d) a second electrical conducting layer. This recording material can be room light handleable and can provide a developed image with increased speed by dry development subsequent to electrical exposure.

Abstract: A light-sensitive copying material comprising at least two organic coating layers on a support, at least one of the coating layers being a light-sensitive layer which comprises an O-quinone diazide compound whose alkali solubility is increased by irradiation with active rays.

Abstract: Disclosed herein are compositions useful for the preparation of flexible coatings, particularly to photographic materials, which have improved stability to organic solvents and dissolved salts. The compositions comprise an aqueous dispersion of a hydrophilic colloid and a copolymer having a glass transition temperature less than or equal to 60.degree. C. comprising: from about 50 to about 70 percent by weight of an ester of an ethylenically unsaturated carboxylic acid; from about 2 to about 18 percent by weight of an amide of an ethylenically unsaturated carboxylic acid; from about 10 to about 30 percent by weight of a vinyl benzene; and from about 2 to about 18 percent by weight of a sulfonate monomer having the formula ##STR1## wherein R is hydrogen or alkyl; R.sup.1 is selected from the group consisting of alkylene and ##STR2## R.sup.2 is amino substituted with alkyl or hydrogen, or --CH.sub.2).sub.n O-- wherein n is an integer from 0 to 5; m is either 0 or 1; and X is hydrogen or a monovalent cation.

Abstract: Photographic elements are protected against the adverse effects resulting from accumulation of static electrical charges by incorporating in the element an antistatic layer formed from an aqueous coating composition containing a water-soluble film-forming polymeric anionic polyelectrolyte in free acid form, a water-soluble film-forming cross-linkage polymeric binder, and an acid-acting cross-linking agent for the polymeric binder. The antistatic layer is useful with both photographic films and photographic papers employed in black-and-white photography or in color photography and will function as an effective anticurl layer as well as providing excellent protection against static. It is durable, abrasion resistant, non-tacky and highly resistant to the aqueous processing baths employed in photographic processing.

Abstract: A radiation-sensitive element is disclosed including a radiation-sensitive layer comprised of a cobalt(III)complex and a photoreductant. A process is disclosed in which the photoreductant is converted to a reducing agent by exposure to electromagnetic radiation longer than 300 nanometers. The reducing agent is then reacted with a cobalt(III)complex. Images can be recorded directly within the radiation-sensitive layer or in a separate image-recording element or layer by use of the residual cobalt(III)complex not exposed or one or more of the reaction products produced by exposure. By using the ammonia liberated from ammine ligand-containing cobalt(III)complexes on exposure in combination with imagewise and uniform exposures, positive or negative images can be formed in diazo image-recording layers or elements associated with the radiation-sensitive layer.