Abstract: A silver halide photographic emulsion that comprises silver halide grains. The emulsion was prepared in the presence of at least one halogen oxoacid salt represented by formula (I) below: M(XOn)m  (I) wherein M represents an alkali metal ion or alkaline-earth metal ion, X represents a halogen atom, n represents 2 or 3, and m represents 1 or 2. A silver halide photographic light-sensitive material that has at least one silver halide emulsion layer on a support. The material contains the above silver halide photographic emulsion.

Abstract: Disclosed is a silver halide color photographic light-sensitive material that comprises at least one magenta emulsion layer containing at least one specific pyrazolotriazole magenta dye-forming coupler, in which a silver halide emulsion in the magenta emulsion layer containing the magenta dye-forming coupler comprises a high silver chloride emulsion whose silver chloride content is 98 mol % or more, at least one light-insensitive hydrophilic colloidal layer contains a solid fine-particle dispersion of a dye that has 1 to 7 dissociable hydrogen or group having a dissociable hydrogen, and the magenta emulsion layer containing the magenta dye-forming coupler is a light-sensitive silver halide emulsion layer most apart from the light-insensitive hydrophilic colloidal layer containing the solid fine-particle dispersion of the dye, among all the light-sensitive silver halide emulsion layers.

Abstract: A print material having a support, at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler and at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, characterised in that the red-sensitive layer contains at least one oil former, the cyan coupler is of the formula 1

Abstract: The present invention provides a photothermographic material including a support having disposed on one surface of the support, at least one image forming layer containing a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, a development accelerator and a binder, and at least one protective layer on the identical surface, wherein 50% by mass or more of the binder contained in the image forming layer is a water soluble binder, and the reducing agent is contained in the form of a solid dispersion.

Abstract: The invention provides a color negative photographic element comprising a light sensitive silver halide emulsion imaging layer having associated therewith a cyan dye-forming coupler dispersion comprising a first 2-ureido-5-acylamino substituted phenolic cyan dye-forming coupler [P], a second phenolic cyan dye-forming coupler [AP] where the 2-substituent is other than an ureido group, a substantially non-color-developable phenolic activator compound [ACT], and a non-phenolic organic coupler solvent having a boiling point of at least 150C; wherein compounds represented by [P], [AP], and [ACT] are present in the coupler dispersion in relative weight fractions of from 0.30 to 0.65 for [P], from 0.15 to 0.35 for [AP], and from 0.15 to 0.

Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon one or more layers including at least one light-sensitive silver halide emulsion layer comprising at least one coupler which undergoes a coupling reaction with an oxidized product of an aromatic primary amine developer to form a dye, wherein at least one of the layer(s) on said support comprises at least one compound represented by the following formula (I): wherein R1 represents a linear or branched unsubstituted alkenyl group having 3-14 carbon atoms, R2 represents an alkyl group, a cycloalkyl group, a linear or branched unsubstituted alkenyl group having 3-14 carbon atoms, R3 represents a group capable of being substituted on the benzene ring, and m represents an integer from 0 to 4. This may be use as a light-sensitive material which can provide a stable color-image.

Abstract: A heat-developable color photosensitive material of single sheet type, which comprises a support having provided thereon at least light-sensitive silver halide, a color developing agent or a precursor thereof, dye-forming couplers capable of forming dyes by reacting with an oxidation product of the color developing agent, a reducible silver salt, a thermal solvent and a binder, wherein a water-insoluble thermoplastic polymer prepared by polymerizing at least one kind of monomer is included in layers containing the dye-forming couplers, thereby preventing the dyes formed from bleeding to ensure high sharpness and making an improvement in raw-stock storability.

Abstract: A process of producing a solid dispersion of an organic compound comprising a step in which after solid dispersing an organic compound, a temperature is elevated stepwise to subject the dispersion to heat treatment.

Abstract: A silver halide photosensitive material comprises at least one light-sensitive layer and at least one non-light-sensitive layer on a support. The photosensitive material contains at least one compound represented by general formula (1), and a ratio of fluorescent X-ray intensity of fluorine to fluorescent X-ray intensity of carbon, F/C, in the surface of the photosensitive material is 0.

Abstract: The invention provides oil-in-water emulsions comprising recombinant collagen-like polymer in an amount sufficient to act as stabiliser of the emulsion. The polymer is especially a polypeptide which is free of helix structure, has an isoelectric point at least 0.5 pH units removed from the pH of the oil-in-water emulsion. Furthermore, amphiphilic recombinant collagen-like polymers are provided for use in oil-in-water emulsions.

Abstract: A photographic element is disclosed, comprising a yellow dye forming coupler, a magenta dye forming coupler and a cyan dye forming coupler, wherein spectral reflection absorption characteristics of a yellow dye, a magenta dye and a cyan dye which are formed of the yellow dye forming coupler, the magenta dye forming coupler and the cyan dye forming coupler, respectively, meet the following requirements: 110≧&lgr;max(M)−&lgr;max(Y)≧95, 80≧&lgr;max(C)−&lgr;max(M)≧70, 0.43≧Abs600(M)≧0.38, and 0.48≧Abs550(C)≧0.35.

Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon one or more layers including at least one light-sensitive silver halide emulsion layer comprising at least one coupler which undergoes a coupling reaction with an oxidized product of an aromatic primary amine developer to form a dye, wherein at a least one of the layer(s) on said support comprises at least one compound represented by the following formula (I): 1

Abstract: The invention relates to a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith in the same dispersion a certain de-aggregating hydrogen bond donating and hydrogen bond accepting compound and at least one pyrazole fused ring derivative coupler. The combination provides improved colour reproduction.

Abstract: A solid dispersion of a compound for use in photography, the dispersion comprising a dispersoid including an organic compound and a dispersion medium, wherein the average settling velocity (v25) of the dispersoid at 25° C., which velocity is represented by the following equation (1), is no more than 5.

Abstract: A silver halide color photographic material is disclosed, comprising a support having thereon a yellow image forming layer, a magenta image forming layer and a cyan image forming layer, each of which contains light sensitive silver halide, wherein when the photographic material having been exposed to light for 10−10 to 10−3 sec. per pixel and processed, an effective tone range of a color image obtained in each of the color image forming layers is 0.65 to 0.84.

Abstract: A silver halide color photographic light-sensitive material having at least one blue-sensitive emulsion layer, at least one green-sensitive emulsion layer, and at least one red-sensitive emulsion layer on a transparent support, wherein the transparent support is a plastic support having two surfaces undercoated with an undercoat solution containing at least one compound selected from the group consisting of a water-miscible organic solvent except for alcohols, a substituted phenol having a molecular weight of 200 or less, and a substituted acetic acid in which at least one hydrogen atom on a methyl group of acetic acid is substituted with a halogen atom, and at least one photosensitive emulsion layer contains a specific coupler.

Abstract: A silver halide photographic lightsensitive material comprising at least one silver halide photographic emulsion layer containing a silver halide photographic emulsion prepared by mixing a dispersion of silver halide grains, the silver halide grains exhibiting such spectral absorption maximum wavelength and light absorption intensity that, when the spectral absorption maximum wavelength is less than 500 nm, the light absorption intensity is 60 or more, while when the spectral absorption maximum wavelength is 500 nm or more, the light absorption intensity is 100 or more, with an emulsified dispersion, wherein the silver halide photographic emulsion, when agitated at 40° C. for 30 min, exhibits a variation of absorption spectrum integrated intensity ranging from 400 nm to 700 nm of 10% or less.

Abstract: A silver halide color photographic photosensitive material comprising, on a reflective support, at least one yellow-coloring photosensitive silver halide emulsion layer, at least one magenta-coloring photosensitive silver halide emulsion layer, at least one cyan-coloring photosensitive silver halide emulsion layer and at least one non-photosensitive, non-coloring hydrophilic colloid layer. Reflective density A(&lgr;) at a wavelength &lgr; at an unexposed portion of the material after a color development treatment is 0.08 or less for 450 nm, 0.10 or less for 550 nm, and 0.08 or less for 650 nm. Alternatively, chromaticity at the unexposed portion of the material after the color development treatment satisfies the condition: 91≦L*≦96, 0≦a*≦2.0, −9.0≦b*≦−3.0. Also provided is a process for forming an image using the silver halide color photographic photosensitive material.

Abstract: A heat-developable light-sensitive material, which at least contains: (a) a photosensitive silver halide; (b) a reducible silver salt; (c) a dispersion of fine crystalline particles of a color-developing agent; (d) a dispersion of fine crystalline particles of a coupler capable of reacting with an oxidized product of the color-developing agent, to form a dye; (e) a dispersion of fine crystalline particles of a thermal solvent; and (f) a binder, each of which is contained on the same side of a support. An image-forming method, which utilizes the heat-developable light-sensitive material.

Abstract: A silver halide color photographic light-sensitive material containing a compound of the formula: 1

Abstract: A hydrophilic colloid composition having hydrophobic material dispersed therein and comprising an anionic surface active agent further comprises a cationic surface active agent in an amount sufficient to reduce the viscosity of the composition, the cationic surface active agent comprising a hydrophobic moiety, a non-ionic hydrophilic moiety and a cationic hydrophilic moiety.

Abstract: A color photographic silver halide material containing in at least one red-sensitive layer a cyan coupler having formula (I) and in a photosensitive or non-photosensitive layer a UV absorber having formula (II) where R1 to R4, R11 to R16, Z, m, n and o have the meanings specified in the description, is characterised by good light and dark stability and low secondary densities.

Abstract: Photographic elements are disclosed comprising a silver halide emulsion layer having associated therewith a dye forming coupler and a compound of the following Formula I: wherein n=0-6 and each R is independently hydrogen, an aromatic, cyclic, linear or branched chain hydrocarbon group, NR′R″, or OR′; where R′ is an aromatic, cyclic, linear or branched chain hydrocarbon group and R″ is hydrogen or an aromatic, cyclic, linear or branched chain hydrocarbon group. Photographic elements of the present invention upon exposure and photographic processing exhibit good activity and yield dye images that have unexpected and substantial improvements in the stability of the formed image dyes.

Abstract: Aqueous-based thermally sensitive emulsions and imaging materials include two or more hindered phenol silver ion reducing agents in a non-crystalline reducing agent composition. Such compositions can be provided as evaporated dispersions and can be formulated in aqueous coating compositions to provide thermally developable materials such as thermographic and photothermographic materials.

Abstract: The invention provides a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, UV absorber and (A) a stabilizer of formula (I) wherein R1 is an unsubstituted or substituted alkyl or aryl group or a 5- to 10- membered heterocyclic ring which contains one or more heteroatoms selected from nitrogen, oxygen and sulfur, which ring is unsubstituted or substituted; Z is a hydrogen atom or a substituent group; X is a group selected from —SO2—, —SO—, —COO—,—CO— and —CS—, W is one or more unsubstituted or independently substituted alkylene groups connecting the nitrogen atom to X, and p is 0 or 1; R2 is a substituent group; or the groups represented by Z and R2 can be joined to form a ring which may be substituted; and (B) a high-boiling solvent of formula (II) wherein R3 is an unsubstituted or substituted alkyl or

Abstract: A silver halide photographic lightsensitive material comprising a support having thereon at least one lightsensitive silver halide emulsion layer, wherein the lightsensitive material contains at least one compound represented by general formula (I) and at least one photographically useful group-releasing compound represented by general formula (II) or (III) that is capable of forming a compound having substantially no contribution to a dye after its coupling with an oxidized form of a developing agent:

Abstract: A coupler represented by the following formula (I), and a silver halide color photographic light-sensitive material containing the coupler: wherein R represents an alkyl, alkenyl, alkynyl, aryl or heterocyclic group; L is —CO— or —SO2—; and X is a hydrogen atom or a group capable of being split-off upon coupling with an oxidized product of a developing agent.

Abstract: This invention involves the use of ionic liquids as coupler solvents in a color or monochrome photothermographic system. The presence of an ionic liquid can increase the amount of density or dye formed. The ionic liquid may be combined with other coupler solvents.

Abstract: This invention involves dispersions comprising ionic liquids and a non-ionic surfactant, optionally further comprising a photographically useful compound such as a dye-forming coupler. Such dispersions form coatings that are relatively free of physical defects, and show reduced problems such as crystallization of components like the couplers or ion pairs.

Abstract: A silver halide photographic light-sensitive material, which contains at least one compound of the formula (1): Formula (1) wherein PUG represents a nitrogen-containing heterocyclic group which is bonded to the adjacent carbonyl group through a nitrogen atom, the heterocyclic group directly or indirectly has at least one nitro group as its substituent(s) and can give a pKa value of 9 to 11, ph represents a phenyl group and directly or indirectly has at least one dissociating group as its substituent(s), Z represents a substituent being capable of substitution on the benzene ring, and p is 0 to 4.

Abstract: This invention provides a photographic element comprising at least one silver halide emulsion layer in which the silver halide is sensitized with a compound of the formula (a): &Dgr;−(t)m−XY′  (a) XY′−(t)m−&Dgr;  (b) &Dgr;−(t)m−XY′−(t)m−&Dgr;  (c) wherein &Dgr; is protective group that is eliminated during development of the photographic element, t is a timing group, m is an integer from 0 to 3, and XY′ is a fragmentable electron donor moiety in which X is an electron donor group and Y′ is a leaving proton H or a leaving group Y, with the proviso that if Y′ is a proton, a base, &bgr;−, is present in the emulsion or is covalently linked directly or indirectly to X, and wherein: 1) X—Y′ has an oxidation potential between 0 and about 1.

Abstract: A silver halide color photographic light-sensitive material comprising a support having provided thereon: at least one yellow-color-forming light-sensitive silver halide emulsion layer; at least one magenta-color-forming light-sensitive silver halide emulsion layer; at least one cyan-color-forming light-sensitive silver halide emulsion layer; and at least one light-insensitive non-color-forming hydrophilic colloid layer, wherein at least one layer of said at least one cyan-color-forming light-sensitive silver halide emulsion layer contains at least one cyan-dye-forming coupler having a pKa of not more than 8.

Abstract: A photographic element is disclosed, comprising a yellow dye forming coupler, a magenta dye forming coupler and a cyan dye forming coupler, wherein spectral reflection absorption characteristics of a yellow dye, a magenta dye and a cyan dye which are formed of the yellow dye forming coupler, the magenta dye forming coupler and the cyan dye forming coupler, respectively, meet the following requirements:

Abstract: A silver halide photographic element for forming a sepia image comprising a support and an image forming layer which contains a cyan dye forming coupler, a magenta dye forming coupler and a yellow dye forming coupler, wherein the support has CIELAB a* and b* values within the following ranges at L*>90:0<b*<6.0, 0<a*<1.

Abstract: There is disclosed a silver halide photographic light-sensitive material comprising at least one compound selected from the group consisting of the compounds represented by the following formula (1), (2) or (3): wherein R1 represents a phenyl, aromatic heterocyclic or aliphatic group, having at least one electron-withdrawing group as a substituent, PUG represents a residue of a development inhibitor, Y1 and Z1 respectively represent a substituent which is substitutable on a benzene ring, and n1 and p1 denote integers from 0 to 4, Ar represents an aryl group or an aromatic heterocyclic group, PUG represents a residue of a development inhibitor, TIME represents a timing group and t denotes 0 or 1, A represents a connecting group, m denotes an integer from 2 to 6.

Abstract: A method for forming a dispersion of an oil-soluble photographically useful compound in water or a hydrophilic colloid composition is disclosed, comprising dispersing the compound in the presence of a water-soluble anionic group containing polymeric surfactant, wherein the polymeric surfactant comprises a copolymer obtained from the copolymerization of a maleic anhydride monomer and a copolymerizable ethylenically unsaturated hydrophobic monomer and the anionic groups of the polymeric surfactant comprise primarily carboxy groups obtained upon base hydrolysis of the anhydride groups of the copolymer. The use of hydrolyzed maleic anhydride derived copolymers in place of conventional small-molecule surfactants as a dispersing agent to stabilize photographically active water-insoluble dye couplers or other organic oil-soluble photographically useful compounds enables a dramatic reduction of crystallization of such organic molecules on long-term keeping.

Abstract: A silver halide photographic element comprising at least one silver halide emulsion, said silver halide element further comprising an amido compound represented by Formula 1 wherein INH is a development inhibitor; LINK is a linking or timing group and m is 0, 1 or 2; and R1 and R2 independently represents an aliphatic, aromatic or heterocyclic group, or R1 and R2 together with the nitrogen to which they are attached represent the atoms necessary to form a 5 or 6 membered ring or multiple ring system; or R1 and R2 are independently a —C(═O)(LINK)m—INH group, or are substituted with an —NR3aC(═O)—(LINK)m—INH group, with R3a being defined the same as R1 or R2, and wherein the compound of Formula I does not substantially react with oxidized developer to release INH; and a fragmentable electron donor compound of the formula X—Y′ or a compound which contains a moiety of the formula —X—Y′;  wherein X is an electron donor

Abstract: This invention relates to a silver halide photographic element comprising at least one silver halide emulsion, said silver halide element further comprising an amido compound represented by Formula 1 wherein INH is a development inhibitor; LINK is a linking or timing group and m is 0, 1 or 2; and R1 and R2 independently represents an aliphatic, aromatic or heterocyclic group, or R1 and R2 together with the nitrogen to which they are attached represent the atoms necessary to form a 5 or 6 membered ring or multiple ring system, or R1 and R2 are independently a —C(═O)(LINK)m—INH group, or are substituted with an —NR3aC(═O)—(LINK)m—INH group, with R3a being defined the same as R1 or R2; and wherein the compound of Formula 1 does not substantially react with oxidized developer to release INH; and a reductone compound represented by Formula 2 wherein R7 and R8 are the same or different, and may represent H, alkyl, cycloalkyl, aryl, or an

Abstract: A color photographic material comprising a support, at least one light-sensitive silver halide emulsion layer and at least one color coupler associated with said layer, characterized in that the material contains at least one compound of formula R1—SO2—NH—CO—R2  (I) wherein R1 and R2 denote organic radicals, the N atom can also be deprotonated, and compound I is substantially colorless and does not couple to form colored compounds during the processing of the material, is distinguished by its steep gradation and in that a high color density is obtained with inexpensive compounds.

Abstract: A hydrophobically capped oligomeric acrylamide or pyrrolidone is employed as a dispersant for hydrophobic materials in an aqueous medium containing a hydrophilic colloid, e.g. gelatin. The hydrophobic materials include photographic addenda such as color couplers or solid particle dyes. Preferred dispersants have the general formula R—L—T   (1) or in which R, R1 and R2 are each independently selected from aliphatic hydrocarbyl, aryl-(aliphatic hydrocarbyl) and (aliphatic hydrocarbyl)-aryl groups, L is a sulphur atom or a linking group that contains a sulphur atom attached to the T group, and T is a hydrophilic oligomeric group obtained by the oligomerisation of one or more vinyl monomers having an amido function.

Abstract: A silver halide photographic light-sensitive material includes a compound selected from: (1) a quaternary nitrogen or phosphorus salt compound, having 20 or more of total recurring units consisting of an ethyleneoxy group and/or a propyleneoxy group; (2) a quaternary salt compound represented by formula (A): wherein Q represents nitrogen or phosphorus, R1, R2 and R3 represent an alkyl, aryl, alkenyl, alkynyl, or heterocyclic group, L1 represents an alkylene group, Y represents —C(═O) or —SO2—, L2 represents a divalent connecting group having at least one hydrophilic group, Xn− represents an n-valent counter anion, n being an integer of 1 to 3; and (3) a quaternary salt compound represented by formula (B): wherein A represents an organic moiety necessary to complete a nitrogen-containing aromatic heterocyclic ring. L2 represents a divalent connecting group having at least one hydrophilic group that divides L2.

Abstract: New compounds of the formula I are described, wherein n is >1; X is O or NR4; L is a n-valent linking group defined in claim 1 and R1 is H, halogen, C1-C25-alkyl, C3-C25-alkenyl, unsubstituted or by C1-C4-alkyl substituted C5-C8-cycloalkyl; R2 and R3 independently of each other are C1-C4-alkyl, or together with the carbon atom they are bonded to, form a carbocyclic C5-C7 ring, especially C5-C7 cycloalkylene; and m is 1-20, especially 2-4. Compounds of the formula I are active as Dox-scavengers in color photographic material.

Abstract: A color photographic silver halide material containing in at least one red-sensitive layer a cyan coupler having formula (1) 1

Abstract: Disclosed is a color photographic element comprising at least one of (1) a light sensitive silver halide emulsion layer and (2) a non-silver containing light insensitive layer, said at least one layer containing a compound with a minimum of three heteroatoms that does not react with oxidized developer and that has a ClogP sufficient to increase the photographic speed of said element compared to the same element without the compound. The invention provides improved light sensitivity.

Abstract: The invention relates to a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith one or more dye-forming couplers and a stabilizer compound of formula (I): wherein R1 and R2 are independently selected from hydrogen or an unsubstituted or substituted alkyl, aryl, alkoxy, aryloxy or amino group or may combine to complete a 5-10 membered heterocyclic ring which may contain in addition to the silicon atom one or more heteroatoms selected from nitrogen, oxygen and sulfur, which ring is unsubstituted or substituted; each Z independently represents the atoms necessary to complete a substituted or unsubstituted arene or heteroaromatic ring system; X is a single bond or a linking group having a single atom which connects the arene rings or heteroaromatic ring systems; or X forms, together with substituents ortho to X on the arene rings or heteroaromatic ring systems, a fused unsubstituted or substituted 5-, 6- or 7-membered ring, which may cont

Abstract: The invention relates to a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith (A) a cyan dye-forming coupler of formula (I) and (B) a bisphenol derivative compound of formula (II): wherein the substituents are as described in the specification.

Abstract: A heat-developable light-sensitive material, which at least contains:

Abstract: There is disclosed a silver halide color photographic light-sensitive material which excels in a color reproduction and an image fastness and which has an excellent color developability. The above silver halide color photographic light-sensitive material comprises a support and provided thereon a yellow color-developing light-sensitive silver halide emulsion layer, a magenta color-developing light-sensitive silver halide emulsion layer and a cyan color-developing light-sensitive silver halide emulsion layer each having a different color-sensitivity, wherein the above magenta color-developing light-sensitive silver halide emulsion layer contains at least one of the non-diffusible dye-forming couplers represented by the following Formula (M), a high boiling organic solvent having a dielectric constant of 6.0 or less and a refraction index of 1.

Abstract: Silver halide light sensitive photographic elements are disclosed comprising a support bearing at least one yellow image forming hydrophilic colloid layer comprising a yellow dye-forming coupler and a trialkyl citrate coupler solvent of the formula C3H4(OH)(CO2R)3, where each R independently represents an alkyl group and the total number of carbon atoms for the three R groups combined is greater than 6. The combination of such citrate ester solvents with yellow dye forming couplers in photographic elements leads to both good reactivity and good image-dye light stability. The advantages of the invention are particularly useful for photographic color paper elements on reflective supports.

Abstract: There is disclosed a silver halide photographic light-sensitive material which comprises a support and provided thereon at least one light-sensitive silver halide emulsion layer and at least one hydrophilic colloidal layer comprising a solid particle dispersion of a water-insoluble photographically useful compound, said solid particle dispersion being a dispersion comprising both a water-insoluble photographically useful compound of the formula 1 and a specific polymer having a carboxyl group and an alkoxycarbonyl group: wherein A is an acidic nucleus, L1, L2 and L3 each are a methine group which may be substituted, R1 and R3 each are a hydrogen atom or a substituent (including an atom), R2 is a substituent (including an atom), n is 0 or 1, m is an integer of 0 to 4, when m is an integer of 2 to 4, R2 may be the same or different, X is an electron-withdrawing group having Hammett's substitution constant &sgr;m of 0.3 to 1.5.