Abstract: Novel 5-pyrazolone magenta dye-forming couplers are blocked with a coupler moiety which yields an alkali-soluble or colorless reaction product. The coupler moiety is joined via its coupling position to the enol oxygen of the 5-pyrazolone and is displaced therefrom during processing as a result of reaction by means of oxidized color developing agent to thereby activate the 5-pyrazolone coupler. These couplers have good reactivity and good resistance to aerial contaminants, such a formaldehyde, and can be incorporated in photographic emulsions and elements.

Abstract: A mask for selectively transmitting therethrough a desired light radiant energy is disclosed. The mask comprises a stress-relieved, essentially dimensionally stable base, comprising a copolymer of tetrafluoroethylene and hexafluoropropylene, which is capable of transmitting therethrough the light radiant energy. A blocking film is deposited on at least a portion of the base for blocking the transmission of the light radiant energy through the portion of the base.

Abstract: The light stability of organic dyes is improved by the presence of at least one of the complexes represented by general formula (I) or (II) ##STR1## wherein M represents a Cu, Co, Ni, Pd or Pt atom; R.sup.1 and R.sup.4, which may be the same or different, each represents an alkyl group or an aryl group; R.sup.2 and R.sup.3, which may be the same or different, each represents a hydrogen atom, an alkyl group or an aryl group; or R.sup.1 and R.sup.2, and R.sup.3 and R.sup.4 may combine to represent a non-metallic atomic group necessary to form a 6-membered ring; and Z represents a non-metallic atomic group necessary to form a 5-membered ring, 6-membered ring, 8-membered ring, or 10-membered ring.

Abstract: A photopolymerizable composition for the production of water-developable printing plates and relief plates, based on a water-soluble or water-dispersible mixture, containing a photoinitiator, of(a) one or more water-soluble or water-dispersible polymers containing copolymerized N-vinylpyrrolidone units and/or one or more polymers containing vinyl alcohol units and(b) one or more olefinically unsaturated photopolymerizable monomers,which comprises, as an additive or as the sole polymer, a water-soluble modified vinyl alcohol polymer which contains from 5 to 75, especially from 10 to 60, % by weight of chemically bonded oxyethylene units. These modified vinyl alcohol polymers are in particular oxyethylated polyvinyl alcohol or hydrolyzed graft polymers of vinyl esters onto polyethylene glycols. The compositions are easier to process into printing plates and relief plates, and exhibit a long shelf life.

Abstract: A method of stabilizing organic substrate materials having an absorption maximum in the wavelength region of about 300 nm to about 800 nm to light which comprises making coexist with the organic substrate at least one metal complex salt represented by the following general formula (I): ##STR1## wherein Cat represents a divalent or a monovalent cation, and n is 1 or 2. A photographic material thus stabilized is also disclosed.

Abstract: A method of stabilizing an organic substrate material such as a photographic dye against the action of light having an absorption maximum between about 300 nm and about 800 nm in wavelength by making co-exist with the organic substrate material at least one compound represented by the formula (I) defined in the specification is disclosed.

Abstract: A method of stabilizing an organic substrate material having an absorption maximum in the wavelength region of about 300 nm to about 800 nm to light without detracting from the color hue and the purity of the organic substrate material, which comprises making at least one metal complex salt represented by the following formula (I) coexist with the organic substrate material: ##STR1## wherein M represents a Cu, Co, Ni, Pd or Pt atom; R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.6, R.sup.7, R.sup.8 and R.sup.9 each represents a hydrogen atom, a halogen atom or a cyano group, or an alkyl group, an aryl group, a cycloalkyl group or a heterocyclic ring which may be attached directly to the carbon atom in the respective ring or through a divalent coupling group, or R.sup.1 and R.sup.2, R.sup.2 and R.sup.3, R.sup.3 and R.sup.4, R.sup.6 and R.sup.7, R.sup.7 and R.sup.8, or R.sup.8 and R.sup.9 may combine to form the non-metal atoms necessary to complete a 6-membered ring; R.sup.

Abstract: Light-sensitive recording material for color photography, which contains, in at least one silver halide emulsion layer, at least one yellow coupler of the formula ##STR1## in which R.sub.1 is alkyl, R.sub.2 is alkyl or aryl and R.sub.3 is substituted or unsubstituted alkyl, alkoxy or alkylmercapto, cycloalkylmercapto, aryl, aryloxy or arylmercapto, the sum of the carbon atoms in the substituents R.sub.1, R.sub.2 and R.sub.3 being 3 to 30 and at least two of these substituents being able to form a cyclic radical together with the carbon atom to which they are bonded, the R.sub.4 s are each halogen, alkyl, alkoxy, halogenoalkyl, alkylsulfonyl or aryloxy, X is a radical detachable during the coupling reaction, A is a 5-membered, heterocyclic, unsaturated ring system which contains 2 or 3 hetero-atoms, at least one of which is a nitrogen atom, and can be fused with a benezene ring and which is substituted by at least one ballast group and r is 1 or 2.

Abstract: Organic substrate materials having absorption maxima between 300 and 800 nm can be stabilized against the action of light by the presence of at least one compound represented by either of the following general formula (I) or (II): ##STR1## where M represents a metal atom selected from the group comprising Cu, Co, Ni, Pd and Pt; R.sup.1, R.sup.2, R.sup.3 and R.sup.4, may be the same or different and each represents a hydrogen atom, a halogen atom, cyano group, an alkyl group, an aryl group, a cycloalkyl group, or a heterocyclic ring, each of the latter four groups being bonded directly or via a divalent connecting group to the corresponding carbon atom of the benzene ring. Alternatively, R.sup.1 and R.sup.2, R.sup.2 and R.sup.3, or R.sup.3 and R.sup.4, may combine to represent the non-metallic atoms necessary to complete a 6-membered ring.R.sup.5 and R.sup.

Abstract: Recording material, for color photography, which contains at least one piperidine compound containing one or more alkyl-substituted phenol groups, as the light stabilizer, in at least one light-sensitive silver halide emulsion layer, one interlayer and/or one protective layer. Colored images which are obtained by image-wise exposure and development of this recording material for color photography display good stability towards the action of visible and ultraviolet light.

Abstract: Light-sensitive recording material for color photography, which contains, in at least one silver halide emulsion layer, at least one magenta coupler of the formula ##STR1## in which A is a 5-membered, heterocyclic, unsaturated ring system which contains 2 or 3 hetero-atoms, at least one of which is a nitrogen atom, and can be fused with a benzene ring and which is substituted by at least one ballast group, R is a substituted or unsubstituted aryl radical, R.sub.1 is hydrogen, halogen, alkyl, alkoxy, halogenoalkyl, alkylsulfonyl or aryloxy and X is a radical detachable during the coupling reaction.The magenta couplers show high reactivity (high maximum density), which facilitates accelerated processing of the photographic materials, and minimal fogging. The couplers also have good fastness to light.

Abstract: Diffusion transfer color processes and products are disclosed employing image-dye providing materials providing magenta image dyes having the chromophoric system represented by the formula ##STR1## wherein each R is the same or different and is an alkyl group, and each X is the same or different and is hydrogen or an alkyl group (including substituted alkyl). The dye image-providing material includes a diffusion control moiety, such as a hydroquinonyl group, and may be diffusible or nondiffusible as a function of the diffusion control moiety.

Abstract: Photopolymerized elements having addition polymerized and unpolymerized image areas comprise a support bearing a layer having hydrophilic or oleophilic polymerized image areas and unpolymerized areas of opposite character, at least one of the image areas having absorbed therein a dye of like character. The dye absorbed photopolymerized elements are prepared after imagewise exposure by leaching out ethylenically unsaturated compound in the unexposed areas and absorbing a dye of like character and solvent carrier for the dye into at least one of the image areas. The dye and carrier mixture are capable of swelling the image areas wherein the dye is absorbed. The absorbed dye is not capable of being transferred from the element. Positive and negative working color copies are produced useful in overlay or projection applications.

Abstract: Pre-press or photomechanical color proofs of half-tone printed products do not faithfully match the color tone values of the final half-tone printed product. This problem occurs from the fact that the printing press, in its mechanical operation, produces half-tone dots on the substrate which are larger than the dots on the printing plate or separation negative itself. It has been found that the proper tonal values for gauging the final results from the press can be obtained in the pre-press color proof by the insertion of a spacer layer between the opaque base and the applied pigment or dye containing layers.

Abstract: A transparency that is used to project an image onto a viewing surface such as a screen is prepared by an electrographic copying process. An element used in this process comprises a transparent support that is coated with an image-receiving hydrophilic colloid layer that receives an image pattern of fusible toner particles. The image pattern of toner particles is fused to the hydrophilic colloid layer by contacting the toned image-bearing layer with a heated fuser surface such as a fuser roll. The fuser surface is coated with a release liquid which inhibits offsetting of the toner particles onto the fuser surface.Transparencies prepared by this process exhibit good resistance to abrasion in toned areas while also displaying substantially no release liquid in non-toned areas upon projection viewing. Furthermore, toned areas of such transparencies can be selectively removed by light rubbing with a moist cloth or tissue.

Abstract: A method of stabilizing organic substrate materials having an absorption maximum in the wavelength region of about 300 nm to about 800 nm to light which comprises making coexist with the organic substrate at least one metal complex salt represented by the following general formula (I): ##STR1## wherein Cat represents a divalent or a monovalent cation, and n is 1 or 2. A photographic material thus stabilized is also disclosed.

Abstract: Organic substrate materials having absorption maxima between 300 and 800 nm can be stabilized against the action of light by the presence of at least one compound represented by either of the following general formula (I) or (II): ##STR1## where M represents a metal atom selected from the group comprising Cu, Co, Ni, Pd and Pt; R.sup.1, R.sup.2, R.sup.3 and R.sup.4, may be the same or different and each represents a hydrogen atom, a halogen atom, cyano group, an alkyl group, an aryl group, a cycloalkyl group, or a heterocyclic ring, each of the latter four groups being bonded directly or via a divalent connecting group to the corresponding carbon atom of the benzene ring. Alternatively, R.sup.1 and R.sup.2, R.sup.2 and R.sup.3, or R.sup.3 and R.sup.4, may combine to represent the non-metallic atoms necessary to complete a 6-membered ring.R.sup.5 and R.sup.

Abstract: A process for preparing a lithoplate by electrophotographic means is provided wherein the toned image is fused, the photoconductive layer in the nonimage area is decoated, and finally, the fused toner is selectively removed leaving oleophilic photoconductive material as the image portion.

Abstract: Screen printing stencils are prepared by affixing to a printing screen substrate an indicia-defining, ultraviolet-sensitive film and cross-linking the film by exposure to ultraviolet radiation. The coating compositions used to form the film comprise copolyacrylate/polyurethane block copolymers, in which the copolyacrylate blocks are copolymers of at least one hydroxy-containing acrylate and at least one acrylate or methacrylate which may be partially substituted with bromine, ultraviolet initiators and cross-linking monomers. Screen printing stencils are provided which are compatible with both water-based and oil-based inks. The disclosed screen printing stencils are used in improved screen-printing methods.

Abstract: An image recording material formed with a support, a photosensitive composition layer formed on the support, and a mono-particle layer of solid particles of different optical transmittances formed on the photosensitive composition layer. When the recording material is exposed to light, the firmness with which the photosensitive composition holds the solid particles varies locally from point to point in accordance with the exposure energies of light passed through the solid particles. Thus by causing the dissolving force of the solvent or other physical forces to act on the photosensitive composition, the particles held weakly are selectively removed from the recording material, whereby an image is formed by the particles left on the recording material. The recording material on which the image has been formed can be used as a printing form as it is or by being subjected to simple after-treatment.

Abstract: An imaging system wherein a migration-type imaging member comprising a softenable layer containing agglomerable migration marking material is provided, and the member is exposed to an image pattern of electromagnetic radiation of sufficient energy to cause a simultaneous imagewise migration at least in depth in the softenable layer and agglomeration of the agglomerable migration marking material in the imagewise exposed areas of the imaging member. In another embodiment, a microscopically discontinuous layer of imaging material on a stable substrate is agglomeration or evaporation imaged by the inventive system.

Abstract: High speed organic photoconductors are produced by crystallizing p-terphenyl from solution in a solvent having defined solubility parameter limits. Heterogeneous photoconductive insulating compositions comprising a dispersion of these p-terphenyls in an electrically insulating binder can be applied to an electrically conducting support to provide an electrophotographic element with high photoconductive speed.

Abstract: Photographic elements, diffusion transfer assemblages and processes are described which employ a novel dye developer compound having a dye moiety such as an arylazopyrazolotriazole. The compound contains:(a) a nitrogen atom in a metal chelating location in at least one of the rings attached to the azo group;(b) in the ortho position of the arylazo moiety a metal chelating group (or a salt thereof or a hydrolyzable precursor thereof), and(c) a silver halide developer moiety.The dye developer is transferred imagewise to an image-receiving layer where it is contacted with metal ions to form a metal-complexed dye developer transfer image of excellent stability.

Abstract: A method of stabilizing organic substrate materials against the action of light is disclosed wherein at least one compound represented by the following general formula (I) is made to coexist with the organic substrate material ##STR1## wherein M represents a Cu, Co, Ni, Pd or Pt atom, R.sup.1 represents an alkyl or an aryl group, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 may be the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group or an aryl group. Alternatively, R.sup.2 and R.sup.3, R.sup.3 and R.sup.4 or R.sup.4 and R.sup.5 may combine together to form a 6-membered ring. A photographic material containing the above compound is also disclosed.

Abstract: The light stability of organic dyes is improved by the presence of at least one of the complexes represented by general formula (I) or (II) ##STR1## wherein M represents a Cu, Co, Ni, Pd or Pt atom; R.sup.1 and R.sup.4, which may be the same or different, each represents an alkyl group or an aryl group; R.sup.2 and R.sup.3, which may be the same or different, each represents a hydrogen atom, an alkyl group or an aryl group; or R.sup.1 and R.sup.2, and R.sup.3 and R.sup.4 may combine to represent a non-metallic atomic group necessary to form a 6-membered ring; and Z represents a non-metallic atomic group necessary to form a 5-membered ring, 6-membered ring, 8-membered ring, or 10-membered ring.

Abstract: A process of forming mask images having high contrast at the edges thereof and possessing high heat resistance and high durability comprising imagewise exposing a photographic light-sensitive material comprising a transparent support having thereon, in succession, a mask layer and a layer of an emulsion of a silver halide in a binder followed by development without employing fixing processing to form silver images at the image areas, removing the silver forming the silver images at the image areas with an aqueous solution containing ceric sulfate and sulfuric acid; then reducing the silver halide remaining at the non-image areas to silver; halogenating the silver formed in the non-image areas with an aqueous solution containing dichromate ions and halogen ions; heating the photographic material above about 200.degree. C.

Abstract: A method of stabilizing an organic substrate material having an absorption maximum in the wavelength region of about 300 nm to about 800 nm to light without detracting from the color hue and the purity of the organic substrate material, which comprises making at least one metal complex salt represented by the following formula (I) coexist with the organic substrate material: ##STR1## wherein M represents a Cu, Co, Ni, Pd or Pt atom; R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.6, R.sup.7, R.sup.8 and R.sup.9 each represents a hydrogen atom, a halogen atom or a cyano group, or an alkyl group, an aryl group, a cycloalkyl group or a heterocyclic ring which may be attached directly to the carbon atom in the respective ring or through a divalent coupling group, or R.sup.1 and R.sup.2, R.sup.2 and R.sup.3, R.sup.3 and R.sup.4, R.sup.6 and R.sup.7, R.sup.7 and R.sup.8, or R.sup.8 and R.sup.9 may combine to form the non-metal atoms necessary to complete a 6-membered ring; R.sup.

Abstract: The light stability of organic substrate materials such as photographic dyes is improved by the copresence of at least one of the complexes shown by following formulae I, II, III, or IV ##STR1## wherein M represents Cu, Co, Ni, Pd or Pt; R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each represents a hydrogen atom, a halogen atom, a cyano group or an alkyl group, an aryl group, a cycloalkyl group or a heterocyclic group bonded directly or through a divalent connecting group to the carbon atom of a benzene ring; or R.sup.1 and R.sup.2 ; R.sup.2 and R.sup.3 ; or R.sup.3 and R.sup.4 combine to represent the non-metallic atoms necessary to complete a 6-membered ring; R.sup.5 and R.sup.8 each represents a hydrogen atom, an alkyl group, or an aryl group; R.sup.6 represents a hydrogen atom, an alkyl group, an aryl group, or a hydroxyl group; R.sup.7 represents an alkyl group or an aryl group; and Z represents the non-metallic atoms necessary to complete a 5-membered or 6-membered ring.

Abstract: A method of stabilizing an organic substrate material such as a photographic dye against the action of light having an absorption maximum between about 300 nm and about 800 nm in wavelength by making co-exist with the organic substrate material at least one compound represented by the formula (I) defined in the specification is disclosed.

Abstract: The stability of organic substrate materials having an absorption peak between 300 and 800 nm in wavelength can be improved by the presence of a compound having the following general structural formula (I): ##STR1## wherein M represents Cu, Co, Ni, Pd or Pt; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents a hydrogen or halogen atom, a cyano, an alkyl, an aryl, a cycloalkyl, or a heterocyclic group which may be substituted or unsubstituted and which is attached to the carbon atom in the benzene ring directly or through a divalent connecting group; alternatively, each of R.sub.1 and R.sub.2, R.sub.2 and R.sub.3, or R.sub.3 and R.sub.4 may combine to form the non-metallic atoms necessary to complete a 6-membered ring; and R.sub.5 represents a hydrogen atom or methyl.

Abstract: Organic substrates, especially photographic dyes, are stabilized against light by using a Cu, Co, Ni, Pd or Pt complex of formula (I). ##STR1## wherein M represents Cu, Co, Ni, Pd or Pt; R.sub.1 and R.sub.6 may be the same or different and represent a hydrogen atom or an alkyl group, an aryl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkylsulfonyl group or an arylsulfonyl group; and R.sub.2, R.sub.3, R.sub.4 and R.sub.5 which may be the same or different represent a hydrogen atom, a halogen atom, a cyano group, or an alkyl group, an aryl group, a cycloalkyl group or a heterocyclic group bonded to a carbon atom on a benzene ring directly or through a divalent linking group, or R.sub.2 and R.sub.3, R.sub.3 and R.sub.4 or R.sub.4 and R.sub.5 respectively may combine and represent the non-metallic atomic groupings required to form a 6-membered ring.

Abstract: A method for stabilizing an organic substrate to light the substrate having an absorption maximum in the range of about 300 nm-about 800 nm, which comprises making at least one complex represented by following general formula (I) coexist with the substrate: ##STR1## wherein M represents an atom selected from the group consisting of Cu, Co, Ni, Pd and Pt, X represents O or S, R.sub.1 represents an alkyl group, an aryl group, an alkoxy group, an aryloxy group or, when taken together, the R.sub.1 's bound to the same phosphorus atom represent the non-metallic atoms necessary to complete a 6-membered ring together with the phosphorus atom. A photographic element containing the above complex is also claimed.

Abstract: The stability of organic substrate materials having an absorption peak between 300 and 800 nm in wavelength can be improved by the presence of a compound represented by the following general formula (I), ##STR1## wherein M represents Cu, Co, Ni, Pd or Pt atom; Cat represents a divalent cation or two monovalent cations; X represents S or a ##STR2## group where R.sup.1 and R.sup.2 each represents a CN, a COR.sup.3, a COOR.sup.4, a CONR.sup.5 R.sup.6, or a SO.sub.2 R.sup.7 group and R.sup.1 may combine with R.sup.2 to form a 5- or 6-membered ring; R.sup.3, R.sup.4 and R.sup.7 each represents an alkyl or an aryl group, R.sup.5 and R.sup.6 each represents a hydrogen atom, an alkyl or an aryl group, and n represents an integer of 1 or 2.

Abstract: The stability of organic substrates having an absorption maximum between 300 and 800 nm in wavelength can be improved by at least one compound represented by the formula (I); ##STR1## wherein M represents Cu, Co, Ni, Pd or Pt; X.sub.1, X.sub.2, X.sub.3 and X.sub.4 eachrepresents an oxygen or sulfur atom, R.sub.1 and R.sub.2 each represents an alkyl, an aryl, a cycloalkyl, an oxocyclalkyl or a heterocyclic group attached to the carbon atom on the chelate ring directly or through a divalent connecting group, R.sub.3 represents a hydrogen atom, an alkyl, an aryl, a cycloalkyl, an oxocycloalkyl or a heterocyclic group attached to the carbon atom on the chelate ring directly or through a connecting group whereby R.sub.1, R.sub.2 and R.sub.3 may be the same or different and R.sub.1 and R.sub.3 or R.sub.2 and R.sub.3 may combine with each other to form a 5-, 6- or 7- member ring structure.

Abstract: A photochromic spiropyran compound is uniformly dispersed in a vinyl chloride homopolymer or copolymer resin binder. The resulting photosensitive composition provides an image which is highly stable against exposure to light, darkness, and heat when the composition is exposed to a light source emitting radiation of wavelength which includes the absorption band of the spiropyran compound.

Abstract: A photographic element comprising a support, a layer containing certain photographically useful fragments and a layer containing a dye mordant composition comprising a polymer having recurring units of the formula: ##STR1## wherein: A comprises polymerized units of ethylenically unsaturated monomers;R is H or alkyl;R.sup.1 is H, alkyl or is a group containing at least one atomatic nucleus;Q is a linking group;Y is H or an inert group;X is a leaving group;E and F are the atoms necessary to complete a 5-7 membered heterocyclic ring;n is 0 to 2;m is 1 to 3;p is 0 or 1;x is 0 to 90 weight percent; andy is 10 to 100 weight percent of the polymer.The polymeric mordants covalently bond with dyes or dye precursors and are especially useful in diffusion transfer processes.

Abstract: Color photographic material is provided which comprises at least one silver halide emulsion layer containing a yellow color coupler of the formula ##STR1## in which G represents a yellow coupler radical bonded via the active methine group to the heterocyclic ring, Z represents --CO-- or --SO.sub.2 -- and M represents a substituent and A represents the non-metallic atoms necessary to complete a five-membered saturated heterocyclic ring.The new two-equivalent yellow couplers lead due to their improved reactivity (high maximum density), minimal fog and high fastness to light and outstanding spectral properties of the dyestuffs formed therefrom to a color photographic material of advantageous properties.

Abstract: A photographic element comprising a support, a layer containing certain photographically useful and/or active fragments and a layer containing a dye mordant composition comprising a polymer having recurring units of the formula selected from the group consisting of: ##STR1## wherein: R.sup.2 is hydrogen or alkyl;R.sup.1 is hydrogen, alkyl or aryl;L is a linking group;W is an electron-withdrawing group;X is a leaving group; andn is 0 or 1.The polymeric mordants covalently bond with dyes or dye precursors and are especially useful in diffusion transfer processes.

Abstract: Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable azo dye moiety such as an arylazo-pyrazolotriazole or arylazo-pyridinol. The compound contains:(a) a nitrogen atom in a metal chelating location in at least one of the rings attached to the azo group;(b) in the ortho position of the arylazo moiety a metal chelating group (or a salt thereof or a hydrolyzable precursor thereof), and(c) a ballasted carrier moiety which is capable of releasing the diffusible azo dye under alkaline conditions.The dye is transferred imagewise to an image-receiving layer where it is contacted with metal ions to form a metal-complexed azo dye transfer image of excellent stability.