Abstract: Novel yellow dye-forming couplers, and photographic elements, emulsions and processes for developing images utilizing the novel couplers, are disclosed. The novel couplers include (a) an acyl acetanilide in which the acyl group has a monocyclic or multicyclic carbon center attached to the carbonyl moiety, and (b) an aryloxy coupling-off group at the coupling position of the acylacetanilide, the coupling-off group having in the ortho position a polarizable substituent.

Abstract: A photographic element containing a silver halide emulsion layer having associated therewith, a dye-forming coupler and a dye stabilizer which has a melting point of less than 150.degree. C. (and preferably less than 100.degree. C.) and is of the formula: ##STR1## wherein R, m, q, X, Y, r, and (R.sup.7).sub.n are defined in the specification.The element particularly contains a coupler which forms a yellow dye upon reaction with oxidized developer. A method of making stabilizers of the above type using particular solvents and a non-aqueous workup, is also provided.

Abstract: Novel cyclic azole couplers and photographic elements containing them are described. The couplers are represented by the following structure: ##STR1## wherein: COUP is a cyclic azole coupler moiety;R.sub.1, R.sub.2 and R.sub.3 independently represent hydrogen or a substituent;L is a linking group joining the azole ring and the aryleneoxy group;G is a bi-valent linking group; andm is an integer of 0 to 2.

Abstract: A silver halide color photographic material is disclosed which comprises a support having thereon at least one layer containing at least one compound of the following general formula: ##STR1## wherein R.sub.1 represents a hydrogen atom, an aliphatic group, --C(.dbd.O)--R.sub.7, --S(.dbd.O)2--R.sub.8 or --P(.dbd.O)(R.sub.7)(R.sub.9); R.sub.2 and R.sub.3 each represents --O--R.sub.10, --S--R.sub.10, an acylamino group or an aliphatic group; R.sub.4 represents --C(.dbd.O)--R.sub.11 or a heterocyclic group; R.sub.5 and R.sub.6 each represents a hydrogen atom or a substituent group; R.sub.7 and R.sub.9 each represents an aliphatic group, an aliphatic oxy group, an aryl group or an aryloxy group; R.sub.8 represents an aliphatic group or an aryl group; R.sub.10 represents an aliphatic group or --C(.dbd.O)--R.sub.7 ; and R.sub.11 represents a substituted hydrazino group or a heterocyclic group.

Abstract: (Magenta) colour images with improved stability to light may be obtained with a colour photographic recording material containing compounds of formula I as magenta couplers. The magenta couplers of formula I are particularly suitable for use in recording materials of positive colour images on light reflecting or transparent supports.

Abstract: Magenta dye images with excellent stability to light are obtained with a color photographic recording material which contains, associated with a light-sensitive silver halide emulsion layer, at least one magenta coupler corresponding to formula I and at least one compound corresponding to formula II.

Abstract: A silver halide color photographic light-sensitive material having a support which has thereon at least one light-sensitive silver halide emulsion layer and at least one light-nonsensitive layer, whereinthe light-nonsensitive layer comprises a layer which contains a compound represented by formula (I) and a compound represented by formula (II),the light-sensitive silver halide emulsion layer comprises at least one coupler represented by formula (III), anda total amount of a compound represented by formula (II) is 2 to 20 mol % of a total amount of a compound represented by formula (I).

Abstract: A novel cyan coupler for photographic dye, a process of forming a dye using the coupler and a photographic material containing the cyan coupler are disclosed. The coupler is represented by formula ##STR1## R, R.sub.1, X, m and n are defined in the specification.

Abstract: An optical information recording medium comprises (1) a base, (2) at least one recording film provided on the base, being capable of bringing about a change in light tranmittance upon being exposed to an optical and/or thermal energy of an incident laser beam, and (3) a reflective film provided on the recording film. The optical information recording medium can exhibit a high contrast and is interexchangeable with CD and LV.

Abstract: A color-photographic recording material is described which contains a magenta coupler and, as stabilizer, at least one compound of the formula ##STR1## where the radicals are as defined in claim 1.

Abstract: Improved hue, speed of dye formation and reduced staining are provided by a photographic element comprising a light-sensitive silver halide layer having associated therewith a 1-phenyl-3-anilino-pyrazolo-5-one coupler comprising a ballasted parent and a coupling-off group and containing substituents on the 1-phenyl and 3-anilino rings of the parent having Hammett sigma values which together sum to at least 1.1, the coupler further having at the 4-position of the pyrazolone ring a coupling-off group comprising a phenylthio group containing a carbonamido substituent in the position para to the sulfur on the phenylthio ring with the substituents on the phenylthio ring selected such that the calculated log P of the thiophenol corresponding to the coupling-off group is at least 4.

Abstract: A photographic element, and coupler employed therein, comprises a photographic silver halide emulsion layer containing a yellow dye-forming coupler having a the general formula: ##STR1## wherein Z is a ballasted group which splits off on silver halide development which is of such size and configuration to render the coupler non-diffusible in photographic layers, prior to splitting off, andR.sup.1 and R.sup.2 are each individually an alkyl or aryl group whose combined effect is to render the yellow dye formed on coupling sufficiently mobile to produce image smearing.

Abstract: A novel silver halide color photographic material comprising a support provided thereon at least one layer containing at least one compound represented by the following general formula (A): ##STR1## In the formula, L.sub.1 represents an alkylene or arylene group; R.sub.1 represents a substituent which can be substituted for a hydrogen of the benzene ring; m represents an integer 2 to 7; and n is 0 or an integer of 1 to 4, with the proviso that when either or both of m and n are at least two, the plurality of L.sub.1 groups and/or R.sub.1 groups may be the same or different, and with the proviso that the compound of formula (A) does not form a polymer via an R.sub.1 group. In a preferred embodiment, at least one compound represented by formula (A) is incorporated into a photographic silver halide emulsion layer.

Abstract: A silver halide color photographic material excellent in color reproducibility, color forming property, color image fastness and processing dependency. The material comprises a yellow color forming silver halide emulsion layer formed on a support, said layer containing at least one yellow color forming coupler represented by general formula (I) dispersed by dissolution in a high boiling organic solvent in a weight ratio of the high boiling organic solvent to the yellow color forming coupler of 0.6 or more: ##STR1## wherein X represents an organic residue necessary for forming a nitrogen-containing heterocycle with a nitrogen atom; Y represents an aromatic group or a heterocyclic group; Z represents a group which is eliminatable by reaction of the coupler represented by general formula (I) with an oxidation product of a developing agent.

Abstract: Disclosed is a silver halide color photographic material having at least one light-sensitive silver halide emulsion layer on a support and containing at least one coupler of formula (I): ##STR1## where R.sub.1 represents an alkyl group; R.sub.2 and R.sub.3 each represent a hydrogen atom, an alkyl group or an aryl group, provided that both R.sub.2 and R.sub.3 are not hydrogen atoms at the same time; R.sub.4 and R.sub.5 each represent an alkyl group; X represents a hydrogen atom or a substituent capable of splitting off by coupling with an oxidation product of a developing agent; Y represents a substituent; n represents 0 or 1; and m represents an integer of from 0 to 3. The material has excellent sensitivity and gradation and has improved storage stability, especially latent image stability.

Abstract: Disclosed herein is a light-sensitive material which has a high sensitivity and excels in yellow-image storage stability and pressure resistance. The material has blue-sensitive emulsion layers containing specific acylacetoamide type yellow dye-forming couplers represented by formula (I): ##STR1## wherein R.sub.1 is a monovalent group, Q is a non-metal atom group which bonds to C to form 3- to 5-membered hydrocarbon ring and R.sub.1 is not a hydrogen atom and does not bond to Q to form a ring, at least one of the blue-sensitive emulsion layers contains at least one silver halide emulsion (A) having silver halide grains, 50% or more of which contain 10 or more dislocation lines per grain.

Abstract: A silver halide color photosensitive material which forms a cyan dye that has superior heat resistance and that will not readily fade in a reducing atmosphere. The silver halide color photosensitive material contains in at least one layer on a support at least one coupler represented by formula (I): ##STR1## wherein R.sup.1 represents hydrogen atom or a substituent; R.sup.2 represents a substituent; X represents hydrogen atom or a group releasable on a coupling reaction with an oxidation product of a color developing agent; Z.sup.1 represents a nonmetallic atom group necessary for forming a nitrogen-containing, six-membered, heterocyclic ring which has at least one dissociative group: Z.sup.1 cannot be --C(.dbd.O)--N(R)--C(.dbd.O)--NH--; and R represents a substituent.Also disclosed is a novel dye forming coupler which exhibits a high coupling activity and which gives a dye having a large molar extinction coefficient and superior stability, the coupler being represented by the following formula (XX) or (XXI).

Abstract: Disclosed is a light-sensitive silver halide color photographic material having at least one silver halide emulsion layer on a support, which comprises a two-equivalent yellow coupler represented by the following formula: ##STR1## wherein R.sup.1 and R.sup.2 each represent an alkyl group or a cycloalkyl group; L represents an alkylene group; X represents a divalent linking group; R.sup.3 represents an unsubstituted alkyl group or cycloalkyl group; n represents 0 or 1; and Z represents >C(R.sup.4)R.sup.5 or >NR.sup.4 where R.sup.4 and R.sup.5 each represent a hydrogen atom or a substituent,being contained in at least one of the above silver halide emulsion layers.

Abstract: There is disclosed a silver halide color photographic material which comprises one yellow coupler represented by the following formula (1) or (2), and a compound represented by the following formula (3) or (4). ##STR1## wherein X.sup.1 and X.sup.2 each represent an alkyl group, an aryl group, or a heterocyclic group, X.sup.3 represents an organic residue required to form a nitrogen-containing heterocyclic group together with the >N--, Y represents an aryl group or a heterocyclic group, and Z represents a group capable of being released upon a coupling reaction with the oxidized product of a developing agent, ##STR2## wherein R.sub.a1, R.sub.a2, R.sub.a3, R.sub.a4, and R.sub.a5 each represent a hydrogen atom, or a substituent such as an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, a cyano group, a halogen atom, or a nitro group, provided that R.sub.al, R.sub.a2, R.sub.a3, R.sub.a4, and R.sub.a5 are not hydrogen atoms at the same time, ##STR3## wherein R.sub.

Abstract: Novel photographic silver halide materials contain dye-forming couplers represented by formula (I): ##STR1## wherein K is a coupler moiety based on pyrazolone, phenol, naphthol, enamine, or acylacetamide to which the ballast group is attached, are useful in photographic materials and processes. The containing the couplers exhibit increased coupling activity, and provide formation of dyes having improved maximum magenta image dye density, contrast, and development speed.