Abstract: A processing composition adapted for use in a silver diffusion transfer film unit which includes an alkali soluble borate compound.

Abstract: Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a novel releasable azo dye. The dyes are azophenols, or precursors of azophenols, and have electron withdrawing groups in each of the positions ortho to the phenolic hydroxy group.

Abstract: Photographic method and film unit wherein a positive image is produced in a film unit by diffusion-transfer process and is viewable from the opposite side of the film unit to the side onto which image-wise light is initially directed, whereby image-reversal means in the optical system of a camera are unnecessary. After exposure, a film unit is moved into a reception means providing lightproof protection to photosensitive portions thereof and also permitting viewing of formation of a positive image therein, the film unit being removable from the reception means after effective completion of photographic processes therein.

Abstract: A color diffusion transfer photographic unit is disclosed which contains a silver halide photosensitive element having a support and at least one silver halide emulsion layer thereon and an image receiving element having a support and an image receiving layer thereon wherein the unit contains a polymer having a first monomer which contains a tertiary nitrogen atom wherein at least 5 mole % of said first monomer is grafted and/or graft-copolymerized with a second monomer which is a vinyl monomer having a tertiary or quaternary nitrogen.

Abstract: A dye-releasing mechanism is described which employs a nondiffusible dye-releasing compound having a dye or dye-precursor moiety attached thereto through a sulfonamido cleavage linkage so that a diffusible sulfonamide dye or dye-precursor will be released upon oxidation and subsequent alkaline hydrolysis of the compound.

Abstract: There is disclosed an improvement in a diffusion transfer photographic material having a transparent support, a receiving layer, a silver halide emulsion layer, and a neutralization layer, wherein the neutralization layer contains a copolymer containing fluorine.

Abstract: An improved neutralization layer is disclosed for a diffusion transfer photographic material wherein said layer contains a copolymer having a monomer unit represented by the formula ##STR1## wherein A is a divalent radical selected from the group consisting of an alkylene group, an arylene group and a combination group consisting of at least one alkylene group and at least one arylene group; the alkylene group containing two or more carbon atoms; the alkylene group, the arylene group and the combination group containing at least one --COOR and/or at least one ##STR2## in which R is hydrogen or an alkyl group.

Abstract: A restraining layer capable of retarding the diffusion of hydroxyl groups is of particular use in a neutralization system for the dye diffusion transfer process. The restraining layer of the invention comprises a film-forming linear polymer consisting of alternating hydrophilic and hydrophobic segments joined to one another by carbonate, urethane and/or ester groups. The neutralization system provides retarded reduction of pH in the photographic material.

Abstract: Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable pyridylazopyrazole or pyrimidylazopyrazole dye moiety. The compound contains in the ortho position of the azopyrazole moiety a metal chelating group, a salt thereof or a hydrolyzable precursor thereof, and 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.

Abstract: Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable 1-arylazo-4-isoquinolinol dye moiety. The compound contains:(a) in the ortho position of the arylazo moiety a metal chelating group, a salt thereof or a hydrolyzable precursor thereof; and(b) 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.

Abstract: Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable azo dye moiety. The compound has the formula: ##STR1## wherein: G is a metal chelating group (or a salt or hydrolyzable precursor thereof) or a group which together with a ##STR2## IS CAR (bonded through the oxygen); G.sup.1 is a hydroxy group (or a salt of hydrolyzable precursor thereof);Z is an electron withdrawing group;Z' is alkyl, aryl or N(R).sub.2 (R being H, alkyl or aryl);Car is a ballasted carrier moiety; andT is 0 or 1.The dye can be transferred imagewise to an image-receiving layer where it can be contacted with metal ions to form a metal-complexed azo dye transfer image of excellent stability. The retained dye image in the photographic element can also be bleached, fixed and metallized to form a color transparency or a motion picture film.

Abstract: Improved diffusion transfer products having a light-reflecting layer which includes a U V absorber dispersed in the layer.

Abstract: Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable 2-(5-nitro-2-pyridylazo)-1-naphthol dye moiety. The compound contains 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.

Abstract: A photographic element comprising a support having thereon at least one layer containing a polymeric mordant containing a repeating unit represented by the general formula (I): ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, each represents a hydrogen atom or a lower alkyl group having 1 to 6 carbon atoms; R.sub.3 and R.sub.4, which may be the same or different, each represents a methyl group or an ethyl group; Y represents a halogen atom, a nitro group, a cyano group, a methoxy group, a methoxycarbonyl group or an ethylthio group; and X.crclbar. represents an anion.

Abstract: Novel photographic developing compositions adapted for the processing of an exposed film unit in the light, which processing compositions include at least one light-absorbing material and an inorganic cation exchange resin, e.g., an aluminosilicate polymer such as those present in natural or synthetic clays; and photographic systems employing the same.

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.

Abstract: Aromatic nitro compounds are disclosed where the aromatic ring contains electron-withdrawing groups and said aromatic nitro compound is capable of undergoing intramolecular nucleophilic displacement after reduction of the nitro group. The compounds are especially useful in photographic elements where an image dye-providing material or a photographic reagent are released upon cleavage from the compound.

Abstract: This invention is concerned with photographic products, particularly diffusion transfer photographic film units, useful in photographic processes conducted outside of a camera wherein post-exposure fogging by ambient light is prevented by a compound initially present as a substantially colorless compound which is activated by base to provide a light-absorbing reagent or colored optical filter agent which is capable of being irreversibly discharged without a change in pH. The colorless compound or filter agent precursor is initially disposed in a layer of the film unit, for example, in a layer coated over the photosensitive element. Subsequent to imagewise exposure of the photosensitive element, the colored optical filter agent is generated by contacting the colorless precursor with a basic processing composition.

Abstract: Photographic elements, processes for forming images in photographic elements and new compounds are disclosed. Generally, the invention relates to ballasted electron-accepting nucleophilic displacement compounds; after acceptance of at least one electron (reduction) by a nucleophile precursor group, the compounds are capable of undergoing intramolecular nucleophilic displacement to release a diffusible moiety, such as an image dye or a photographic reagent. In certain embodiments, the ballasted electron-accepting nucleophilic displacement compounds are used in combination with electron donors and electron-transfer agents. The processes disclosed are particularly useful in providing positive transfer images using negative-working silver halide emulsions.

Abstract: Non-diffusible dye-providing compounds for the dye diffusion transfer process yielding yellow to red color images of wanted absorption characteristics and improved light fastness correspond to the formula(A.sup.1).sub.n -- D -- N .dbd. N -- Py -- (A.sup.1).sub.1-nin whichA.sup.1 represents an oxidizable organic carrier residue which may be attached through a connecting member X and containing a group which confers diffusion resistance, from which carrier residue, either in its oxidized or in its unoxidized form, a part is split off together with the group which confers diffusion resistance under alkaline photographic development conditions, a diffusible azo dye represented by the formula P--N.dbd.N--B being released imagewise at the same time;D represents a heterocyclic or carbocyclic aromatic group;Py represents a pyridine or 1,2-dihydropyridine group which is attached to the azo group through its 3-position and carries an amino or hydroxyl group in its 6-position;N = 0 or 1.

Abstract: A photographic sound recording and reproduction method is disclosed wherein a sound track is formed by silver diffusion transfer processing. Film units suitable for this application are described which comprise a support, a layer containing silver precipitating nuclei, and a layer containing photosensitive silver halide crystals.In one embodiment, a photographic sound track may be produced in a silver diffusion transfer color motion picture film unit, which further comprises an optical color screen.

Abstract: Diffusion transfer photographic products and processes involving film units having an anti-light piping capability so that the film units can be exposed in a dark chamber of a camera, withdrawn from the dark chamber while distributing an opaque processing composition between elements of the unit to protect the unit from further exposure and transported into light before distribution of the opaque processing composition is complete.

Abstract: The neutralization layer (acid polymer layer) in a photographic film unit for the production of colored transfer images contains a crosslinked acrylic or methacrylic acid copolymer having at least 30 mol % of copolymerized acrylic acid or methacrylic acid and the crosslinking has been brought about by copolymerizing said acid monomers or the corresponding esters together with a crosslinking agent having at least two copolymerizable carbon-carbon double bands.

Abstract: A novel class of redox releasing compounds contains an N,N-disubstituted carbamoyl ballast group. These compounds can be used in photographic elements and processes to release a dye or other photographically useful group as a function of silver halide development.

Abstract: Polymeric derivatives of tetrazole-5-thiols are useful in conjunction with photosensitive silver halide elements as interlayers to provide interimage control, as dispersants for dye image-forming materials or as silver scavengers.

Abstract: A dye mordant composition containing a polymer comprising repeating units with at least 20 mol % of the repeating units having the general formula (I): ##STR1## wherein R.sub.1 represents an alkyl group containing 1 to 12 carbon atoms, an aralkyl group, an aryl group or an allyl group; R.sub.2 and R.sub.3, which may be the same or different, each represents a hydrogen atom, an alkyl group, an aralkyl group, an aryl group or an allyl group, where the total number of carbon atoms contained in the main chain and/or ring of R.sub.2 and R.sub.3 is less than 16; n represents an integer from 2 to 20; and X.sup..crclbar. represents an anion.

Abstract: In one embodiment, the present invention relates to pyrazolidine derivatives, some of which are novel compounds, all of which are represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 taken individually, the same or different, are each hydrocarbon moieties containing up to about 20 carbon atoms selected from alkyl, aryl, aralkyl and alkaryl, which moieties may be unsubstituted or substituted with a substituent selected from carboalkoxyalkyl, aryl, alkyl, alkoxy, hydroalkyl, aminoalkyl, ketalalkyl and acetalalkyl, and R.sup.1 and R.sup.2 taken together represent the carbon atoms necessary to complete a cyclic moiety selected from: ##STR2## which cyclic moieties may be unsubstituted or substituted with the above-identified substituents; Y is --OH or --NH.sub.2 ; and X is --OH, --NH.sub.2, --NH.sub.2.Z where Z is a salt, or --NHR where R is alkyl or aryl.

Abstract: An image-receiving layer of an image-receiving element used for a color diffusion transfer process comprising a dyeable polymer or mordant polymer having the structural unit represented by the formula (I) ##STR1## wherein Z represents an atomic group necessary for completing a nitrogen-containing heterocyclic ring and X.sup.- represents a monovalent anion;Or represented by the formula (II) ##STR2## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom, an alkyl group, a hydroxyalkyl group, or an aralkyl group, and X.sup.- represents a monovalent anion and a color diffusion transfer process using the image-receiving element described above.

Abstract: Photographic film units and photographic products using an acetal of a hydroxylated polymer and a formyl benzyl quaternary salt(s) as a mordant for diffusible dye image-providing materials.

Abstract: In a color diffusion transfer photographic material which comprises a photosensitive element containing at least one silver halide emulsion layer having associated therein a non-diffusible dye image-providing material, an image-receiving element for immobilizing therein diffusible dye formed by the oxidation reaction of the dye image-providing material and a primary aromatic amino color developing agent to form dye images, and a processing composition for developing the exposed silver halide in the silver halide emulsion layer and transferring the diffusible dye formed into the image-receiving layer with at least one of the photosensitive elements, the image-receiving element or the processing composition containing a primary aromatic amino color developing agent or a precursor thereof, with the photosensitive element and/or the image-receiving element of the photographic material containing at least one of divinyl sulfone and a divinyl sulfone derivative represented by the formula (I): ##STR1## wherein B rep

Abstract: Photographic dye developing agents represented by the following formula (I): ##STR1## wherein A represents an anthraquinone dye moiety, X represents a hydrogen atom, an aliphatic hydrocarbon group, an alicyclic hydrocarbon group, an aryl group or a heterocyclic group, at least one of A and X contains an o-dihydroxyphenyl group or a p-dihydroxyphenyl group as a dye developing agent moiety, n is an integer of 1 to 4, and COY represents a group which is released from the nitrogen atom at a pH of above 9.

Abstract: Color diffusion transfer products and processes are provided incorporating light-sensitive photographic emulsions comprising silver halide grains having an iodide content of about 0.2 to 1.5 mole percent and a mean volume diameter of about 0.05 to 2 .mu., the grain size distribution thereof exhibiting a coefficient of variatin of less than about 35 percent. Preferably, the iodide content of the halide emulsion is about 0.625 percent, the mean volume diameter is about 0.9 to 1.2 .mu., and the coefficient of variation is less than 30 percent. The reamining halides in the grains may be bromide or bromide and chloride. The silver halide emulsions are prepared by single jet techniques.

Abstract: The present invention discloses a process for forming a color dye image in an image receiving layer by diffusion transfer from a light sensitive element containing a diffusible dye developer and a silver halide emulsion which has been imagewise exposed. The exposed light sensitive element is subjected to an alkaline processing solution to transfer the dye developer to an image-receiving layer of an image receiving element to produce a color dye image. The alkaline processing solution thus used should contain a compound of the following general formula: ##STR1## wherein R.sub.1 represents hydrogen, methyl, ethyl, methoxy or hydroxymethyl and R.sub.2 represents hydrogen, methyl or ethyl.

Abstract: In a color diffusion transfer photographic material comprising a photosensitive element including at least one light-sensitive silver halide emulsion layer having a dye image providing material associated therewith, an image receiving element for fixing the diffusible dye formed from said dye image providing material to form a dye image, an alkaline processing composition capable of developing the exposed photosensitive element, and, if necessary, a hydrophilic colloid layer, the photographic material further having neutralizing means for reducing the pH of the alkaline processing composition.

Abstract: An improved process for forming a dye image in an image receiving layer of a film unit containing a light-sensitive element and an image receiving element by incorporation therein of a compound represented by the formula ##STR1## WHEREIN R.sub.1 and R.sub.2 individually represent lower alkyl, and n is 3.

Abstract: In the photographic dye-diffusion transfer process use is made of dye-giving compounds, which are non diffusing in photographic binder layers, and which during development if oxidized imagewise in accordance with the silver halide developed are split owing to the alkali of the developer composition to release diffusing dyes, which are transferred to an image-receiving layer. The dye-giving compounds have the formulaY--NH--Ar--NH--SO.sub.2 --Xar represents an arylene radical such that the group Y--NH-- is attached to the group --NH--SO.sub.2 --X through a chain of n(n=1,2,3, or 4) vinylene groups which are part of the arylene radical;X represents the radical of a dye or dye precursor;Y represents a --COR or --SO.sub.2 R radical; andR represents an alkyl, aryl or heterocyclic group and can constitute part of a second dye moiety.

Abstract: The present invention relates to a photographic silver halide emulsion layer having disposed therein microvoids to provide photographic speed enhancement to said emulsion. The silver halide emulsion layers are particularly useful in additive multicolor photographic film units.

Abstract: This invention relates to compounds of the formula: ##STR1## wherein: X is methyl, methoxy, hydroxy, amino, chloro or carboxy;m is a positive integer from 1 to 2; andA is an alkyl radical having from 9-17 carbon atoms.The compounds of this invention are particularly useful in diffusion transfer photographic products and processes.

Abstract: A process for forming a dye image on a receiving element by diffusion transfer from a photosensitive element is disclosed wherein the exposed photosensitive element is processed with an alkaline solution in the presence of a particular dye developer having at least one azo radical.

Abstract: My invention is directed to a process of forming dye images. I accomplish this through a first redox amplification reaction in which a cobalt (III) complex oxidizing agent enters into a redox reaction with a reducing agent at the site of a catalyst image. A second redox amplification reaction follows in which a peroxide oxidizing agent is employed along with dye-image-generating reducing agent to form a dye image corresponding to the pattern of the catalyst.

Abstract: Stable nitroxyl radicals are useful as oxidants in photographic elements or film units.

Abstract: A neutralization system for the dye diffusion transfer process comprises an acid polymer layer containing a polymer with free acid groups and a retarding layer. The retarding layer contains a hydratable polymer which in its non-hydrated state is a barrier for hydroxyl ions and in its hydrated state provides no resistance for diffusing hydroxyl ions. The retarding layer is arranged between a laminate consisting of a light-sensitive film unit comprising at least a light-sensitive silver halide emulsion layer and a non-diffusible dye giving compound associated with the light-sensitive silver halide emulsion layer. The retarding layer allows a first high pH value to be maintained during a first time interval which is sufficient and necessary for producing the desired image density in the image receiving layer and thereafter a second low pH value to be adjusted within a second time interval which is less than half as long as the first.

Abstract: Disclosed herein is an image-transfer film unit comprising:(1) a photosensitive element comprising a support, having thereon at least one silver halide emulsion layer;(2) an image-receiving layer:(3) interposed between any silver halide emulsion layer and said image-receiving layer, at least one pH selectively permeable layer comprising:(a) from about 1 to 100 mole percent of a polymerized monomer containing at least one active methylene group and having the formula: ##STR1## wherein n is 0 or 1; R is hydrogen or methyl; R.sup.1 is substituted or unsubstituted arylenethylene having the structure: ##STR2## wherein Ar is arylene and R.sup.2 is hydrogen, alkyl, aryl or cycloalkyl, or R.sup.1 has the formula: ##STR3## wherein R.sup.3 is alkylene, arylene or cycloalkylene; and R.sup.4 is alkyl, alkoxy or amino when n is equal to 0, and R.sup.

Abstract: Diffusion transfer integral film units are provided having a flare-reducing layer adjacent or contiguous the photosensitive silver halide layer(s).

Abstract: My invention is directed to a process of forming dye images. I accomplish this by bleaching a silver image at least in part with a cobalt bleaching agent to form within the silver image pattern an immobile cobalt reaction product. The concurrent presence of the immobile cobalt reaction product, a peroxide oxidizing agent and a dye-image-generating reducing agent within the silver image pattern allows a dye image to be formed which corresponds to the silver image pattern.

Abstract: A light-sensitive silver halide photographic material comprising a support having thereon at least one hydrophilic colloid layer which contains a color-forming coupler having a nitrogen-containing residue releasable on reaction of the coupler with an oxidation product of a color developing agent and which contains a thiocarbonyl group (S.dbd.C<), a selenocarbonyl group (Se.dbd.C<) or a telluriumcarbonyl group (Te.dbd.C<), the nitrogen atom of the nitrogen-containing residue being attached to the carbon atom in the coupling position of the coupler.

Abstract: A photographic film unit comprises a support having coated thereon at least one photosensitive silver halide emulsion, said layer having associated therewith a dye image-providing material, a dye image-receiving layer, means for discharging an alkaline processing composition within the film unit and at least one layer containing at least one para-nitrobenzylidene dye-forming compound. Some of the para-nitrobenzylidene dye-forming compounds are a dark color at moderately and highly alkaline conditions and are colorless at neutral or only slightly alkaline conditions such as at ambient conditions.

Abstract: Diffusion transfer products and processes are disclosed wherein the processing composition includes, as the viscosity increasing component thereof, a polymer containing recurring groups of the formula: ##STR1## wherein R is hydrogen, alkyl or halogen; R.sub.1 is alkyl; R.sub.2 and R.sub.3 each are alkyl, aryl or alkaryl or R.sub.2 and R.sub.3 together may comprise an alkylene group to form a heterocyclic ring with the nitrogen.

Abstract: Heterocyclic N-(acylhydrazinophenyl)thioamide nucleating agents are disclosed as well as radiation-sensitive compositions and elements containing such nucleating agents in combination with silver halide grains capable of forming an internal latent image. The elements can be used to form direct-positive photographic images. Dye image transfer photographic elements are specifically contemplated.

Abstract: Improvements in the physical characteristics of a photographic assemblage, especially an integral transfer element, are obtained by employing an alkali metal salt in the alkaline processing composition used to process the assemblage. The anion of the salt has a solubility in relation to that of sulfate such that after processing in the presence of calcium and sulfate ions, calcium will combine with said anion in preference to sulfate at any given pH. Especially preferred salts are alkali metal fluorides or oxalates.