Abstract: An optical recording medium in which a recording layer (4) on which optically readable data are recorded is formed on a rectangular base material (1), a protective layer (5) is formed by roll coating on the recording layer (4) and wherein the base material (1) on which the recording layer (4) and the protective layer (5) have been formed is cut into a predetermined shape. The protective layer (5) provided on the recording layer (4) is formed of a material having a low Young modulus and a lower thermal conductivity as compared with the base material.

Abstract: Yellow dye-forming couplers of the acylacetanilide class, having an electron withdrawing group or electronegative element attached to the keto functional group, have excellent light-absorption characteristics and are useful in photographic elements.

Abstract: A silver halide color photographic material comprising on a support at least a silver halide emulsion layer, comprising a compound represented by general formula (I):A--(L).sub.r --INH--(CH.sub.2).sub.n --Q(I)wherein A represents a coupler residue excepting 1H-pyrazolo[1,5-b]-1,2,4-triazole and 1H-pyrazolo[5,1-c]-1,2,4-triazole; L represents a timing group or a group which reduces an oxidation product of a developing agent; r represents an integer of 2 to 4; n represents an integer of 0 to 3; Q represents a group having a molecular weight of 80 to 250; and INH represents a development inhibitor residue bonded to A--(L).sub.r via hetero atoms and selected from a group ##STR1## wherein * represents the position at which the group is connected to L and ** represents the position at which the group is connected to --(CH.sub.2).sub.n --Q.

Abstract: A sliver halide color photographic material compriseing a support having at least one layer containing at least one a compound of the formula (I), (II) or (III). ##STR1## n=0, 1, or 2.

Abstract: This invention provides composition and method to overcome the very high viscosity of prior small-particle dispersions when admixed with gelatin in aqueous solution for coating a photographic film element.The invention is generally accomplished by the utilization of a second surfactant in the melt formulated by the admixture of the small-particle dispersion and the gelatin solution. The surfactants of this invention, that is, utilized to control the theology of such said melts, have the following general structure: ##STR1## wherein n=5 to 20 andx=1 to 4.

Abstract: The invention provides new magenta-dye-forming couplers, new magenta dyes formed therefrom, and new photographic elements containing the new couplers. The new couplers have the structure (I):Q--G--Q.sub.(I)wherein --G-- has the structure (II):--L--NH--SO.sub.2 --R--SO.sub.2 -NH--L--.sub.(II)wherein --R-- is substituted or unsubstituted alkylene, alkoxylene, arylene, or aryloxylene, andeach --L-- is independently substituted or unsubstituted alkylene, alkoxylene, arylene, aryloxylene, or aryloxyalkylene, andQ-- has the structure (III ): ##STR1## wherein: each R.sup.1 -- is independently H-- or a substituent; each X-- is independently H-- or a coupling-off group; andeach of D, E, and Z is independently a substituted or unsubstituted methine group, .dbd.

Abstract: A color photographic element is disclosed comprising a support bearing at least one photographic silver halide emulsion layer, an image dye-forming coupler, and a coupler (A) capable of forming a compound that is washed out of the photographic element upon processing and capable of releasing a bleach accelerator group, wherein the coupler (A) is represented by the formula:(SOL).sub.x --COUP--(R.sup.1).sub.y --(R.sup.2).sub.

Abstract: Novel bicyclic pyrazolo couplers contain a sulfone group of formula (I):--L--NHC(.dbd.O)--(L).sub.n --B--SO.sub.2 --R.sup.1 Iwherein:each L is independently a divalent group linking the adjacent groups;n is 0 or 1;B is a divalent group selected from aryl, aryloxy, aryloxyalkyl, and --C(R.sup.2)(R.sup.3)-- wherein R.sup.2 and R.sup.3 are independently hydrogen or alkyl; andR.sup.1 is a substituted or unsubstituted alkyl having 1 to 22 carbon atomsThese couplers are useful in photographic materials and processes. They exhibit improved color reproduction and dye light stability when employed in color photographic materials and processes.

Abstract: A silver halide photographic light-sensitive material includes a support, and at least one light-sensitive silver halide emulsion layer formed on the support, wherein at least one of the light-sensitive silver halide emulsion layers contains at least one type of an acylacetamide type yellow dye forming coupler having an acyl group represented by formula (I) below, and at least one type of a compound represented by formula (W) below: ##STR1## wherein DI represents a development inhibitor.

Abstract: A new method of preparation of a single isomer of a benzotriazole compound comprises the step of reacting a benzotriazole compound containing symmetrical substituents on the benzo ring with phosgene to produce the corresponding carbamyl chloride. The carbamyl chloride can be reacted with a timeing group of a coupling-off group of a photographic coupler to form a photographic development inhibitor releasing coupler. Such compounds are useful in photographic materials and processes.

Abstract: A silver halide color photographic light-sensitive material capable of providing a dye image having improved spectral absorption characteristic as well as high color-forming property and excellent dye image fastness is disclosed. The light-sensitive material comprises at least one silver halide emulsion layer having a cyan color-forming property, wherein the silver halide emulsion layer having the cyan color-forming property contains at least one cyan coupler represented by the following formula (I) or (II) and at least one of a sparingly water-soluble homopolymer and/or copolymer: ##STR1## wherein Za and Zb each represents --C(R.sub.3).dbd. or --N.dbd., provided that one of Za and Zb is --N.dbd. and the other is --C(R.sub.3).dbd.; R.sub.1 and R.sub.2 each are an electron attractive group having a Hammett's substituent constant .sigma..sub.p of 0.2 or more and the sum of the .sigma..sub.p values of R.sub.1 and R.sub.2 is 0.65 or more; R.sub.

Abstract: A silver halide color photographic light-sensitive material having an improved color forming property, color reproducibility and image preservative performance is described. The light-sensitive material comprises a support having provided thereon at least one silver halide emulsion layer comprising (a) a cyan dye-forming coupler represented by the following formulas (I) or (II): ##STR1## wherein Za, Zb, R.sub.1, R.sub.2 and X represent substituents described herein; (b) a compound represented by the following formula (A): ##STR2## wherein R.sub.a1 -R.sub.a6 represent substituents described herein.

Abstract: A photographic element contains a light-sensitive silver halide layer having associated therewith a coupler which is a pyrazolone compound with a coupling-off substituent at the -4-position, said compound having the formula: ##STR1## wherein each R.sup.1 is independently a substituted or unsubstituted alkylsulfonyl or arylsulfonyl group; each R.sup.2 and R.sup.3 is independently a substituent; R.sup.4, R.sup.5, and R.sup.6 are independently hydrogen or substituted or unsubstituted alkyl groups; m and n are independently 0 or 1 but both are not 0; x1 and x2 are independently 0 to 5; and y is 0 to 3; provided that each of R.sup.3, R.sup.4, R.sup.5, and R.sup.6 is selected such that the calculated log P of the thiophenol corresponding to the substituent at the 4-position of the pyrazolone is at least 4. The photographic element provides an improved combination of low continued coupling together with a magenta hue exhibiting a long wavelength of maximum absorption.

Abstract: Disclosed is a silver halide color photographic material comprising a support having thereon at least one layer containing one or more cyan couplers of formula (I): ##STR1## wherein R.sub.11 represents a branched or cyclic alkyl group, a branched or cyclic alkoxy group, a substituted aryl group, or a substituted aryloxy group; R.sub.21 represents a substituent which may optionally be substituted. R.sub.12 represents an aliphatic group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group, an alkylamino group, an anilino group, a heterocyclic-oxy group, or a heterocyclic-amino group; R.sub.22 and R.sub.32 each represents a substituent; r.sub.2 represents an integer of from 0 to 4; provided that when r.sub.2 is a plural number, the plurality of R.sub.32 groups may be the same or different; R.sub.13, R.sub.23 and R.sub.33 each represent a hydrogen atom or a substituent; provided that the total of Taft's substituent constant .sigma.* values of R.sub.13, R.sub.23 and R.sub.33 is 1.5 or more; R.

Abstract: A silver halide light-sensitive photographic element comprising a support and provided thereon a plurality of light-sensitive layers including a green-sensitive layer comprising a dispersion of particles in a hydrophilic colloid, the particles comprising a pyrazolazole dye forming coupler dissolved in a coupler solvent comprising a long chain unsaturated alcohol.

Abstract: A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer and containing a 1H-pyrazolo[5,1-c]-1,2,4-triazole couplers represented by the general formula (I) of the general formula (II): ##STR1## wherein A represents a group which is bonded to L via the benzene ring or a carbon atom in R.sup.

Abstract: An optical disk is configured as comprising a pair of substrates one of which has a recording layer borne thereon, the substrates being joined together through an adhesive so that the recording layer is interposed therebetween. In one form, one of the substrates is of glass, the other substrate is of a resin. In another form, both the substrates are of glass or resin. Delamination is prevented by using the adhesive having a specific glass transition temperature, Young's modulus, and dynamic loss factor.

Abstract: Compounds of Formula I are suitable as light stabilizers for the image dyes produced by chromogenic development from pyrazoloazole couplers ##STR1## In Formula I, R.sup.1 represents H, a group that can be split off under alkaline conditions, alkyl or aryl;R.sup.2 represents --OH, alkyl, aryl, alkoxy or ##STR2## R.sup.3, R.sup.4, R.sup.5 and R.sup.6 represent H, --OH, --COOH, --SO.sub.3 H, --SO.sub.2 H, alkyl, aryl, alkoxy, sulphonyl, sulphamoyl, acylamino or ##STR3## at least one of the groups R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 being a group of the formula ##STR4## A represents alkylene with 1-6 C atoms; n represents 0 or 1,R.sup.7 represents H or alkyl, optionally substituted alkyl,R.sup.8 represents optionally substituted alkyl, cycloalkyl or aryl with 4-20 C atoms;R.sup.1 and R.sup.3 can form a 5- or 6-membered ring, in which case R.sup.2 =--OH or alkoy;R.sup.2 and R.sup.4 can form a 5- or 6-membered carbocyclic ring.

Abstract: An optical memory device comprising at least one transparent substrate and a light reflection layer or an optical memory layer laminated on one surface of the substrate, in which the light reflection layer or the optical memory layer is constituted with a UV-ray or electron-ray cured resin dispersingly containing a light reflective metal powder or an optical recording material.

Abstract: The improved silver halide color photographic material contains at least one pyrazolotriazole base magenta coupler represented by the following general formula [Ia] or [Ib]: ##STR1## This photographic material is improved in image keeping quality, especially in lightfastness, without lowering the efficiency of color formation and it also insures good color reproduction.