Abstract: A coloring composition comprising a dye compound represented by formula (I): wherein Dye represents a dye structure portion; Q represents —SO—, —SO2—, —SO2NR11—, —CO— or —CONR12— in which R11 and R12 each independently represents a hydrogen atom or a substituent; W represents a divalent aliphatic group; M represents an ionic group; and m represents an integer of 1 or greater, and wherein the dye compound satisfies conditions 1 and 2: Condition 1: 200<Mw/(the number of CO2M groups contained in the dye compound)<500 Condition 2: (the number of CO2M groups contained in the dye compound)/p>0.5, with the proviso that Mw represents a molecular weight of the dye compound represented by the formula (1); and p represents the total number of ionic hydrophilic groups substituted on the dye compound represented by the formula (1).

Abstract: A diazonium salt represented by the following general formula (1) and a thermal recording material using the diazonium salt: General Formula (1) wherein R1 and R2 each independently represents an alkyl group, an aryl group, an acyl group, an alkoxycarbonyl group or a carbamoyl group, and R1 and R2 may be linked each other to form a ring; and R3 to R6 each independently represents a hydrogen atom, a hydroxyl group, a halogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an alkylsulfonyl group, an arylsulfonyl group or a diazonio group, and at least one of R3, R4, R5 and R6 represents the diazonio group.

Abstract: A compound represented by formula (I); a multifunctional isocyanate composition, containing an adduct formed by treating the compound represented by formula (I) with a compound represented by formula (II); and a microcapsule using the multifunctional isocyanate composition: wherein, in formula (I), R1 represents -L1-X1 or X1; R2 represents a hydrogen atom or -L2-X2; L1 and L2 each independently represent a divalent linking group; X1 and X2 each independently represent a nucleophilic substituent; n represents an integer of 1 to 4; and when n is 2 or more, R1s may be the same or different; and R3—(NCO)m??Formula (II) wherein, in formula (II), R3 represents an arbitrary m-valent linking group; and m represents an integer of 2 or above.

Abstract: A heat sensitive recording material comprising a support and a heat sensitive recording layer containing a diazonium salt compound disposed on the support, wherein a compound represented by following formula (1) is contained in the heat sensitive recording material, as well as a microcapsule containing a diazonium salt compound and the compound represented by the following formula (1): in which R1 to R5 each independently represent a hydrogen atom, halogen atom or a substituted or non-substituted alkyl group, alkenyl group, aryl group, alkoxy group, or aryloxy group; R6 to R8 each independently represent a hydrogen atom or a substituted or non-substituted alkyl group or aryl group; and R1 and R7, R1 to R5, and R6 and R8 may join with each other to form a ring, providing that a ring formed by joining of R1 and R7, or R6 and R8 does not form an aromatic ring.

Abstract: A heat-sensitive recording material including a substrate and a heat-sensitive recording layer containing a diazonium salt and a coupler, the heat-sensitive recording layer being disposed on or over the substrate, wherein the diazonium salt is a compound represented by the following general formula (1):

Abstract: A heat-sensitive recording material including a substrate and a heat-sensitive recording layer containing a diazonium salt and a coupler, the heat-sensitive recording layer being disposed on or over the substrate, wherein the diazonium salt is a compound represented by the following general formula (1): 1

Abstract: A heat-sensitive recording material includes, on a support thereof, a heat-sensitive recording layer containing a diazo compound and a coupler.

Abstract: A diazonium salt represented by the following general formula (1) and a thermal recording material using the diazonium salt: 1

Abstract: A heat-sensitive recording material includes, on a support thereof, a heat-sensitive recording layer containing a diazo compound and a coupler.

Abstract: The present invention discloses a diazo compound represented by any one of the following general formulas (I) to (III). Also, the present invention discloses a heat-sensitive recording material including a substrate and a heat-sensitive layer provided on the substrate, the heat-sensitive recording layer including a diazo compound which is represented by any one of the following general formulas (I) to (III), and a coupler to react with the diazo compound to color the same. According to the present invention, there is provided a diazo compound having a high density of color-developing and good storability, and a heat-sensitive recording material using the diazo compound which has excellent color-developing property, light-resistance property, and storage stability before use.

Abstract: An object of the present invention is to provide a pyrrolo[1,2-a]pyrimidine compound that is useful as a coupler providing excellent hue of a cyan system and sufficient density of formed color. The pyrrolo[1,2-a]pyrimidine compound of the present invention for achieving the object is represented by one of following general formulae (1), (2) and (3).

Abstract: The present invention provides a photo-sensitive and heat-sensitive recording material comprising a substrate supporting thereon a photo-sensitive and heat-sensitive recording layer containing a diazo compound and a coupler, wherein the diazo compound is a compound represented by the following general formula (1) and the diazo compound is enclosed in a microcapsule: wherein, R1 and R2 may be the same or different, and represent an alkyl group having 1 to 5 carbon atoms; R1 and R2 may be bonded to each other to form a ring; R3 and R4 may be the same or different, and represent an alkyl group; and R3 and R4 may be bonded to each other to form a ring. This photo-sensitive and heat-sensitive recording material reveals less change in the base concentration between before and after storage before use.

Abstract: A thermal recording material comprising a support having provided thereon a thermal recording layer containing a diazonium salt and a coupling component. The diazonium salt is a compound represented by the following general formula (1):General Formula (1) ##STR1## wherein T and U each independently represents a hydrogen atom, a halogen atom, an alkyl group or an acylamino group; V represents a hydrogen atom, a halogen atom, an alkyl group or OR.sup.3 ; R.sup.1, R.sup.2 and R.sup.3 each independently represents an alkyl group or an aryl group; and X.sup.- represents an anion. The thermal recording material has excellent stock storage stability and provides fast color-developed images having an extremely high developed color density.

Abstract: There is disclosed a silver halide photographic light-sensitive material containing a dye which colors a specific layer in the light-sensitive material and furthermore is quickly decolored and/or eluted during a development processing. The light-sensitive material contains at least one compound represented by the following formula (1), (2) or (3): ##STR1## wherein R.sup.11 represents a hydrogen atom, an alkyl group, an aryl group, --COOR.sup.16, or --CONR.sup.16 R.sup.17 ; R.sup.12, R.sup.13 and R.sup.14 each represents a hydrogen atom, an alkyl group, and an aryl group; R.sup.15 represents a hydrogen atom, an alkyl group, an aryl group, or an amino group; R.sup.13 and R.sup.14 may be combined to form a 6-membered ring; and R.sup.16 and R.sup.17 each represents a hydrogen atom, an alkyl group, and an aryl group; provided that the compound represented by formula (1) does not have a carboxy group or a salt thereof as a substituent; ##STR2## wherein R.sup.1 represents an alkyl group or an aryl group; R.sup.

Abstract: A silver halide photographic material having at least one hydrophilic colloid layer containing a dispersion obtained by emulsifying and dispersing a mixed solution containing at least one oil-soluble dye and at least one water-insoluble, organic solvent-soluble polymer.

Abstract: A silver halide photographic material contains in a hydrophilic colloid layer a 4-arylazooxazoline-5-one compound or/and a 2-arylazo-3-butene-4-olide compound in the form of a dispersion of fine solid particles or a composition with an oil or/and a polymer latex. The compounds not only can selectively color a particular layer alone but also can be speedily decolorized and/or eluted in the course of development processing. In addition, they have no undesirable effects on photographic characteristics.

Abstract: An X-ray photographic material having:(1) at least one sensitive silver halide photographic emulsion layer provided on both sides of a support; and(2) at least one layer provided on at least one side of the support for fixing a dye which can be decolorized during development and which absorbs light in the sensitive region of the photographic material and wherein:(3) the dye contributes to the reduction of cross-over to less than 10%; and(4) the dye is a compound selected from the group consisting of compounds represented by the following general formula (I) and is dissolved in an oil which is a solvent substantially insoluble in water and having a boiling point of not lower than 160.degree. C. and which is dispersed as oil droplets or is loaded and dispersed in a polymer latex: ##STR1## wherein X and Y each represents a substituent group, or X and Y may be combined together to form a heterocyclic ring L.sup.1, L.sup.2 and L.sup.

Abstract: A silver halide color photographic material comprising a support having in a layer thereon at least a dye represented by general formula (I) ##STR1## wherein R.sub.1 and R.sub.4, which may be the same or different, each represents a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group, -NR.sub.7 R.sub.8, --NR.sub.7 CONR.sub.7 R.sub.8, --NR.sub.8 COR.sub.9 or --NR.sub.8 SO.sub.2 R.sub.9 ;R.sub.2 and R.sub.5, which may be the same or different, each represents a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group, a cyano group, a sulfonic acid group, --NR.sub.7 R.sub.8, --NR.sub.8 COR.sub.9, --NR.sub.8 SO.sub.2 R.sub.9, --NR.sub.7 CONR.sub.7 R.sub.8, --COOR.sub.7, --CONR.sub.7 R.sub.8, --COR.sub.9, --SO.sub.2 R.sub.9 or --SO.sub.2 NR.sub.7 R.sub.8 ;R.sub.3 and R.sub.6, which may be the same or different, each represents a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group, --OR.sub.7, --COOR.sub.7, --COR.sub.9, --CONR.sub.7 R.sub.8, --NR.sub.

Abstract: The present invention is directed to an optical information recording medium for carrying out recording, readout and erasing with laser beams which comprises a support having carried thereon at least one of the compounds represented by the following general formulae (I), (II), (III) and (IV): ##STR1## wherein X and X' each represents an atomic group necessary for forming a carbon ring or an atomic group necessary for forming a specific heterocyclic ring; L.sup.1 mainly represents a methine group, or a group formed by linking 3 or 5 methine groups in turn to form conjugated double bonds; and Q and Q' each represents an atomic group whereby a conjugated double bond chain is completed; ##STR2## wherein L.sup.1 and Q are as defined in general formula (I); Z represents an atomic group necessary for forming a carbon ring or heterocyclic ring; R.sup.1 to R.sup.3 and E represent various substituents; and M represents an ion, etc.

Abstract: There is provided a silver halide photographic material wherein a hydrophilic colloid layer is dyed with a new water-soluble dye that will not adversely affect the photographic characteristics of the silver halide emulsion layer. The silver halide photographic material exhibits excellent performance in that the dye is photochemically inactive such that not allow the sensitivity to lower, the latent image to fade, or the image to fog, and the decoloring or dissolving of the dye proceed rapidly in a photographic processing step, leaving no detrimental color on the processed photographic material.