Abstract: A silver halide photographic material is disclosed, comprising a support having thereon at least one light-sensitive silver halide emulsion layer, wherein said silver halide photographic material contains a compound by formula (IA), or which contains at least one hydroxamic acid compound having a bicyclo ring as a partial structure and represented by formula (IB).

Abstract: A silver halide photographic laight-sensitive material is disclosed. The light-sensitive material comprises a support and a silver halide emulsion layer and a non-light-sensitive hydrophilic colloid layer provided on the support, wherein at least one of the silver halide emulsion layer and the non-light-sensitive hydrophilic colloid layer contains a compound represented by the following Formula 1, and the silver halide emulsion layer contains tabular silver halide grains having an average aspect ratio of not less than 2.0 account for at least 50 % of total grain projected area of the emulsion, and the tabular grains have an average silver iodide content is not more than 1 mole-%;Formula 1R.sub.11 --(S).sub.n --R.sub.12wherein R.sub.11 and R.sub.12 are each independently represent an aliphatic group, an aromatic group or a heterocyclic group, the groups represented by R.sub.11 and R.sub.12 may be the same or different and they may be bonded with together to form a ring; and n is an integer of from 2 to 6.

Abstract: Photographic elements are disclosed in which exposure to at least one portion of the spectrum is recorded by a silver halide emulsion layer unit as an image having its optical density provided by silver. The layer unit is comprised of a plurality of radiation sensitive silver halide emulsion layers that are responsive to the same region of the spectrum, but differ in sensitivity, including a non-wandering silver halide reducing agent. A molar ratio of reducing agent to silver halide in one of the emulsion layers is less than that stoichiometrically required for complete silver halide reduction to silver. A higher molar ratio of reducing agent to silver halide is contained in a remaining of the two emulsion layers.

Abstract: A radiation sensitive emulsion is disclosed containing iridium doped composite silver halide grains comprised of (a) host portions having an average aspect ratio of less than 1.3 and consisting essentially of monodisperse silver iodochloride grains containing from 0.05 to 3 mole percent iodide, based on total silver forming the host portions, with maximum iodide concentrations located nearer the surface of the host portions than their center and (b) epitaxially deposited portions containing the iridium dopant and silver bromide accounting for from 0.1 to 5 mole percent of total silver forming the composite grains.The emulsions are prepared by (a) first providing an emulsion containing grains which form the host portions of the grains and (b) modifying the performance properties of the host grains by a combination of silver bromide addition, iridium dopant incorporation and antifoggant addition, in which, prior to antifoggant addition, silver bromide in the amount of from 0.1 to 5.

Abstract: The invention relates to an emulsion comprising silver halide grains, said grains being tabular and comprising sensitizing dye(s) and silver salt epitaxial deposits, and addenda that includea tetraazaindene and a hexose reductone represented by Formula I: ##STR1## wherein R.sub.1 and R.sub.2 are the same or different, and may represent H, alkyl, cycloalkyl, aryl, or an alkyl group with a solubilizing group such as --OH, sulfonamide, sulfamoyl, or carbamoyl. Alternatively, R.sub.1 and R.sub.2 may be joined to complete a heterocyclic ring such as aziridinyl, azetidinyl, pyrrolidinyl, piperidinyl, morpholinyl, piperazinyl, or pyridinyl, R.sub.4 and R.sub.5 are H, OH, alkyl, aryl, cycloalkyl, or may together represent an alkylidene group, n is 0,1, or 2 and R.sub.3 is H, alkyl, aryl, or CO.sub.2 R.sub.6 where R.sub.6 is alkyl.

Abstract: A solution containing a dimethylamine silver chloro-iodide complex is added with an antifoggant to a silver chloride emulsion to form a stable AgICl emulsion.

Abstract: A silver halide photographic material comprising a support having provided thereon at least one silver halide emulsion layer, wherein the silver halide emulsion comprises silver halide grains having a silver chloride content of 50 mol % or more, and the silver halide grain contains a cyanochromium complex ion represented by the following formula (I) and at least one complex of a metal selected from rhodium, ruthenium, osmium, rhenium and iron:?Cr(CN).sub.6-n L.sub.n !.sup.m- (I)wherein L represents H.sub.2 O or OH; n represents 0 or 1; and m represents 3 or 4.

Abstract: A silver halide color photographic light-sensitive material is disclosed, comprising a support having thereon at least one photographic constituent layer, wherein any one of the photographic constituent layer contains at least one reducing agent for color formation represented by formula (I), at least one dye forming coupler and at least one water-insoluble polymer.

Abstract: A process is disclosed of preparing a high bromide tabular grain emulsion comprising (1) in a grain nucleation step creating in a dispersing medium tabular grain nuclei containing parallel twin planes and (2) in a grain growth step subsequently growing the grain nuclei into tabular grains by running into the dispersing medium high bromide silver halide grains having a maximum equivalent circular diameter of less than 40 nm, wherein (a) the high bromide grains are formed prior to the grain nucleation step and then held in the presence of a grain growth restrainer adsorbed to the grain surfaces to inhibit grain ripening and (b) during the growth step the restrainer is desorbed from the high bromide grains and silver and halide ions forming the high bromide grains are released by ripening into the dispersing medium in the growth step.

Abstract: Solid particle dispersions of compounds useful in imaging elements can be made with substantially improved stability to particle growth by dispersing the compound of interest in the presence of a relatively small amount of a second compound that is structurally similar to the compound of interest. This second compound is combined with the compound of interest prior to dispersing the compound of interest, i.e., prior to milling in the case of milled dispersions, and prior to precipitation in the case of pH or solvent precipitated dispersions. While being distinct, the second compound has a similar chemical structure to the main compound.

Abstract: A photographic element comprising at least one silver halide emulsion layer in which the silver halide is sensitized with a compound of the formula: ##STR1## wherein A is a silver halide adsorptive group that contains at least one atom of N, S, Se, or Te that promotes adsorption to silver halide, and L represents a linking group containing at least one C, N, S or O atom, k is 1 or 2, and XY is an fragmentable electron donor moiety in which X is an electron donor group and Y is a leaving group other than hydrogen, and wherein:1) XY has an oxidation potential between 0 and about 1-4 V; and2) the oxidized form of XY undergoes a bond cleavage reaction to give the radical X.sup..cndot. and the leaving fragment Y.In a preferred embodiment of the invention, the radical X.sup..cndot. has an oxidation potential .ltoreq.-0.7V.

Abstract: A photographic element comprises a support and at least one silver halide emulsion layer in which the silver halide is sensitized with a fragmentable electron donor of the formula X--Y, wherein X is an electron donor moiety and Y is a leaving group other than hydrogen, and wherein:1) X--Y has an oxidation potential between 0 and about 1.4 V; and2) the oxidized form of X--Y undergoes a bond cleavage reaction to give the radical X.sup..cndot. and the leaving fragment Y.In a preferred embodiment of the invention, the radical X.sup..cndot. has an oxidation potential .ltoreq.-0.7V.

Abstract: A silver halide photographic light sensitive material comprises a support and provided thereon, a light sensitive silver halide emulsion layer, wherein said light sensitive silver halide emulsion layer or another layer contains an organic compound having a boron atom bonding to at least two oxygen atoms.

Abstract: The present invention describes a light-sensitive silver halide photographic material comprising a support and silver halide emulsion layer or layers, wherein at least one of said silver halide emulsion layers contains tabular silver halide grains having an average diameter to thickness ratio of at least 2:1 and at least one azodicarbonamide derivative.

Abstract: A photographic print element is disclosed having a reflective support and at least one image recording emulsion layer unit containing cube-like silver iodochloride grains containing from 0.05 to 3 mole percent iodide, based on total silver, in a controlled, non-uniform iodide distribution forming a core, an iodide-free surface shell having a thickness of greater than 50 .ANG., and a sub-surface shell that contains a maximum iodide concentration.

Abstract: Compounds of the formula I are suitable as release compounds for photographically useful groups (photographic units). On reacting with nucleophilic reagents, preferably with dinucleophiles, the photographically useful group is released. ##STR1## In formula I: PUG means a photographically useful group;A means a strong electron acceptor;V means a vinylene group or two or more successive vinylene groups, wherein the vinylene group or two successive vinylene groups may form part of an aromatic ring system;L means one or more timing groups;m means 0 (zero) 1 or 2;n means 0 (zero), 1 or 2;R.sup.1 means H or methyl;R.sup.2 means H, alkyl with 1-18 C atoms or aryl;R.sup.3, R.sup.4 mean H or an organic group,wherein R.sup.2 and R.sup.3 may also together mean the residue necessary to complete a ring.

Abstract: The invention provides a multilayer silver halide color negative photographic element comprising in the same layer a cyan dye of formula (I) and a ballasted stabilizer compound of formula (II), where the respective formulas are: ##STR1## andB--L--A--R (II)wherein:the substiuents are as defined herein the specification.

Abstract: This invention provides a thermally processable imaging element comprising a support and a thermographic or photothermographic imaging layer, said imaging layer comprising an aryliodonium compound represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 and R.sup.3 are independently H, or aliphatic, aromatic or heterocyclic groups, alkoxy groups, hydroxy groups, halogen atoms, aryloxy groups, alkylthio groups, arylthio groups, acyl groups, sulfonyl groups, acyloxy groups, carboxyl groups, cyano groups, nitro groups, sulfo groups, alkylsulfoxide or trifluoralkyl groups, or any two of R.sup.1, R.sup.2 and R.sup.3 together represent the atoms necessary to form a five or six-membered ring or a multiple ring system;R.sup.4 is a carboxylate salt or 0.sup.- ; w is 0 or 1; and X.sup.- is an anionic counter ion; with the proviso that when R.sup.3 is a carboxyl or sulfo group, w is 0 and R.sup.4 is 0.sup.-.

Abstract: There is disclosed a silver halide color photographic material and a method for forming a color image using the photographic material. The photographic material comprises a reflective support made up of a base and two or more waterresisting resin covering layers which contain a white pigment and a silver halide emulsion layer containing a yellow coupler represented by formula (I), (II), or (III) and preferably further containing a compound represented by formula (IV), (V), (VI), (VII), or (VIII), each of which formula is defined in claim, on the reflective support.

Abstract: There is disclosed a silver halide color photographic material comprising a silver halide emulsion of high-silver chloride emulsion wherein a thiosulfonic compound represented by formula (I) and a sulfinic acid compound represented by formula (II) are added in the step of the production of said emulsion followed by sulfur sensitization. The disclosure described provides a silver halide color photographic material less in fogging due to the lapse of time after preparation of the emulsion for coating and less in fogging due to rapid development processing.

Abstract: A color recording photographic element is disclosed containing a support and, superimposed on the support, blue, green and red recording layer units. The layer unit nearest the support contains a high chloride tabular grain emulsion and an optionally esterified glycolic ether having a molecular weight of at least 300 and containing at least one thioether moiety. The layer unit farthest from the support is free of the optionally esterified glycol compound. The advantages realized are an increased imaging density range, increased sensitivity, and increased contrast.

Abstract: Certain propenenitrile compounds have been found to function as antifoggants and serve to improve the initial minimum density of black and white photo-thermographic and thermographic elements.

Abstract: A color photographic silver halide material having at least one silver halide emulsion layer, which is stabilized with a compound of formula (I) or (II) ##STR1## where X represents O or NR.sub.2Y represents halogen,Z.sup..crclbar. represents an anion,R.sub.1 represents hydrogen or a substituent, or jointly with X represents the remaining members of a condensed ringR.sub.2 represents hydrogen or a substituent, andQ represents the atoms required for the completion of a 5- or 6-membered ring, is characterized by enhanced stability.

Abstract: The invention concerns a color negative process wherein a photographic material comprising silver chloride or silver bromide and a DIR or DIAR coupler is processed in the presence of a polyester comprising intralinear thioether atoms.

Abstract: A silver halide photographic material is disclosed, which comprises a support having thereon at least one light-sensitive silver halide emulsion layer, wherein said silver halide photographic material contains at least one compound represented by the following formula (I): ##STR1## wherein R.sup.1 represents a substituted or unsubstituted alkyl group having from 1 to 6 carbon atoms; and R.sup.2 represents a branched alkyl group having 20 or more carbon atoms, a straight chain or branched alkenyl group having 17 or more carbon atoms, or a substituted alkyl or substituted alkenyl group substituted with at least one substituent selected from the group consisting of an alkoxycarbonyl group, an alkenoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an acyl group, an alkoxyl group, an alkylthio group, an arylthio group, an alkylsulfonyl group, an arylsulfonyl group, an aryl group and a heterocyclic group, and having 12 or more carbon atoms in total.

Abstract: A silver halide photographic light-sensitive material having at least one light-sensitive silver halide emulsion layer on a support is disclosed. The light-sensitive silver halide emulsion layer contains tabular silver halide grains having an average aspect ratio of 2 or more and contains a compound represented by the following formula (I) and/or the oxidized product thereof:X.sub.1 --A--X.sub.2 Formula (I)wherein X.sub.1 and X.sub.2 each represent OR.sub.1 or ##STR1## wherein R.sub.1 represents a hydrogen atom or a group capable of being converted to a hydrogen atom upon hydrolysis, and R.sub.2 and R.sub.3 each represent hydrogen, alkyl, aryl, heterocyclic, heterocyclic sulfonyl, heterocyclic carbonyl, sulfamoyl, or carbamoyl, A represents arylene, and at least one of the groups representative of X.sub.1, X.sub.2, and A is substituted by a group which accelerates adsorption to a silver halide grain.

Abstract: The invention is directed to a process for preparation of a silver halide emulsion comprising providing an unsensitized emulsion, heating to carry out chemical sensitization of said emulsion, cooling said emulsion, heating said emulsion a second time to complete heat treatment.

Abstract: The invention relates to a radiation-sensitive silver halide emulsion comprisingsilver halide grains including tabular grains(a) having {111} major faces,(b) containing greater than 70 mole percent bromide, based on silver,(c) accounting for greater than 90 percent of total grain projected area,(d) exhibiting an average equivalent circular diameter of at least 0.7 .mu.m,(e) exhibiting an average thickness of less than 0.07 .mu.m, and(f) having latent image forming chemical sensitization sites on the surfaces of the tabular grains, anda spectral sensitizing dye adsorbed to the surfaces of the tabular grains,wherein the surface chemical sensitization sites include at least one silver salt epitaxially located on said tabular grains adsorbed onto said grains during grain forming or sensitizing and said emulsion further comprising at least one sulfodihydroxy aryl compound represented by the Formulas I or II ##STR1## wherein X and Y represent an SO.sub.

Abstract: A photographic element is disclosed containing a compound capable of releasing image-wise a photographic useful group (PUG) based on a mechanism involving radical formation under development conditions and splitting of a homolytically labile bond. In a preferred embodiment the compound capable of releasing the PUG is a hydrazine derivative or a 1-aryl-3-pyrazolidinone derivative.

Abstract: This invention provides a color silver halide photographic element comprising a support having situated thereon a red light-sensitive, cyan dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; a green light-sensitive, magenta dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; and a blue light-sensitive, yellow dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; wherein at least one of the dye-forming units comprises two or more emulsion layers spectrally sensitized to the same region of the visible spectrum, but exhibiting different photographic sensitivities, each such emulsion layer containing an image dye-forming coupler wherein at least one, but not all, of the emulsion layers of the dye-forming unit contains the hydrolyzed or unhydrolyzed form of a benzazolium compound represented by formula (I): ##STR1##

Abstract: A silver halide color photographic material can be formed which exhibits good storage stability and provides excellent sharpness and superior color reproducibility by incorporating therein a dye comprising an indole moiety having a methyl group substituted by an electron-withdrawing group at the 1-position and an acidic nucleus which are connected together via a methine chain. The dye is typically provided in a light-insensitive layer in the form of a solid dispersion. Specific embodiments include the combination of the indole-containing dye with a magenta dye, fogged silver halide grains, a DIR compound or a mercaptoheterocyclic compound.

Abstract: The invention provides a radiation sensitive emulsion comprised of a dispersing medium and silver iodochloride grainsWHEREIN the silver iodochloride grainsare partially bounded by {100} crystal faces satisfying the relative orientation and spacing of cubic grains andcontain from 0.05 to 1 mole percent iodide, based on total silver, with maximum iodide concentrations located nearer the surface of the grains than their centerand wherein said emulsion further comprises an iodonium salt represented by formula (I) [R.sub.1 I.sup.+ R.sub.2 ] Q.sup.-wherein R.sub.1, R.sub.2, may be independently substituted or non-substituted alkyl, aryl, alkylaryl, but not oxygen, or together R.sub.1 and R.sub.2 may form carbocyclic, heterocyclic, aromatic, or heteroaromatic rings and Q is an anion.

Abstract: A silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, wherein the silver halide emulsion layer contains a silver halide emulsion sensitized by a methine dye represented by following formula (I) and the total content of calcium in the photographic constituting layers on the support is not more than 10 mg/m.sup.2 ; ##STR1## wherein Q represents a non-metallic atomic group necessary for forming a 5-membered or 6-membered ring; R.sub.1 to R.sub.11 each represents a hydrogen atom or a substituent, however, at least one of R.sub.1 to R.sub.3 represents a group containing an aromatic group and R.sub.4 and R.sub.5 are not a hydrogen atom; L.sub.1 to L.sub.

Abstract: A silver halide photographic material comprising a support having provided thereon at least one light-sensitive silver halide emulsion layer, wherein the emulsion is spectrally sensitized with at least one compound selected from the compounds represented by the following formulae (1) and (2) and contains a compound represented by the following formula (5).

Abstract: A silver halide color reversal photographic light-sensitive material includes at least one blue-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer, and at least one red-sensitive silver halide emulsion layer, formed on a support. At least one light sensitive emulsion layer contains silver halide grains having a silver halide phase formed in the presence of an iodide ion-releasing agent, under controlled release of iodide ions from the releasing agent. At least one hydrophilic colloid layer contains a certain heterocyclic compound or a certain DIR compound.

Abstract: An encased photographic material includes a silver halide light-sensitive material having at least one silver halide emulsion layer on a support. The emulsion layer contains gold- and chalcogen-sensitized silver halide grains and a thiocyanate salt therein. At least 60% of a total projected area of the silver halide grains is occupied by tabular grains having an aspect ratio of 3 or more and having on an average 10 or more dislocation lines per grain. A lightproof container contains the light-sensitive material such that an end portion of the light-sensitive material is positioned outside the lightproof container, and that a gas can pass between an inside and an outside of the lightproof container. A light-transmitting case encases and seals the lightproof container. A hydrogen cyanide gas scavenger is present inside the case.

Abstract: The invention involves a process for making photographic recording materials for radiography having comparable sensitivity and high visual resolution in the resulting x-ray images, whether used with green-emitting or blue-emitting intensifying screens. The invention also describes a process for making x-ray images by the use of such recording materials. The invention regulates the ratio of the silver halide coating's blue to green sensitivity by the addition of an aliphatic 2-amino-1-thio compound of Formula I: ##STR1## wherein R.sup.1 =alkyl of 1 to 5 carbons, aryl, alkylacyl of 1 to 5 carbons, H or arylacyl;R.sup.2, R.sup.3, R.sup.4, R.sup.5 =H, alkyl of 1 to 4 carbons or COR.sup.7 ;R.sup.6 =H or alkyl of 1 to 5 carbons,R.sup.7 =OH, NHR.sup.8, or O-R.sup.10 where R.sup.10 is an alkyl of 1 to 5 carbons;R8, R9=H or alkyl of 1 to 5 carbons;R.sup.1 and R.sup.6 taken together represent one to three methylene groups bridging the nitrogen and the sulfur; andR.sup.1 and R.sup.

Abstract: A photographic element comprising a support having situated thereon a silver halide emulsion, the emulsion comprising an alkynylamine compound of the formula: wherein Z represents atoms necessary to complete a 5 to 10-membered heterocyclic ring system, R.sup.1 represents hydrogen or an alkyl of from 1 to 5 carbon atoms, and R.sup.2 represents hydrogen, or an alkyl, aryl, heteroaryl, carbocyclic or heterocyclic group; andat least one dihydroxy aryl compound represented by formula II or III: ##STR1## wherein R.sup.3 to R.sup.12 are independently selected from the group consisting of hydrogen, hydroxy, sulfonate, or an alkyl of from 1 to 5 carbon atoms, and wherein at least two of such groups represent a hydroxy group.

Abstract: A silver halide color photographic material improved in color forming properties and light fastness of color image is disclosed, comprising a support having thereon a light-sensitive silver halide emulsion layer and a nonlight-sensitive layer, wherein the nonlight-sensitive layer contains a UV absorbent and the silver halide emulsion layer contains a polyhydric alcohol.

Abstract: A silver halide photographic material having the improved storability and anti-stress property is disclosed, which comprises a support having provided thereon at least one light-sensitive silver halide emulsion layer containing a silver halide emulsion, wherein the silver halide emulsion is subjected to a chemical sensitization with a selenium compound, and the emulsion layer or another layer provided on the support contains at least one of the compounds represented by formulas (I), (II) and (III): ##STR1##

Abstract: A silver halide photographic material having the improved storability and anti-stress property is disclosed, which comprises a support having provided thereon at least one light-sensitive silver halide emulsion layer containing a silver halide emulsion, wherein the silver halide emulsion is subjected to a chemical sensitization with a selenium compound, and the emulsion layer or another layer provided on the support contains at least one of the compounds represented by formulas (I), (II) and (III): ##STR1## wherein R.sub.11 to R.sub.16, R.sub.21 to R.sub.26, R.sub.1 and R.sub.2 are defined in the specification.

Abstract: There are described heat-developable photosensitive image-recording materials which include a compound having at least one cyclic 1,3-sulfur-oxygen moiety. The compound is stable in the photographic processing composition but capable of undergoing cleavage in the presence of an imagewise distribution of silver ions and/or soluble silver complex made available as a function of development to liberate a reagent in an imagewise distribution corresponding to that of the silver ion and/or the soluble silver complex. The reagent includes a photographically useful group such as a complete dye or dye intermediate.

Abstract: Disclosed is a color photographic material having, on a reflective support coated with waterproof resin layers, at least three different color-sensitive silver halide emulsion layers containing any of cyan, magenta and yellow couplers, in which the number of said waterproof resin layers under said photographic constitutive layers is at least three, at least one of said waterproof resin layers contains from 15% by weight to 45% by weight of a white pigment, the waterproof resin layer nearest to the substrate of the support and that nearest to the photographic constitutive layers donor contain a white pigment or contain it in an amount of 20% by weight or less, the thickness of the waterproof resin layer nearest to the photographic constitutive layers is 5 .mu.m or less, and at least one emulsion layer contains high silver chloride emulsion grains having a silver chloride content of 95 mol % or more and contains a mercaptohetercyclic compound.

Abstract: A new type of hydrazide compounds is disclosed corresponding to general formula (A): ##STR1## the symbols of which are explained in the description. Examples of synthesis are given. Incorporation of these diacyl hydrazides into the silver halide emulsion layer(s) of a photographic material causes a significant increase in sensitivity.

Abstract: There is disclosed a silver halide photosensitive material having at least one silver halide emulsion layer coated on a support, wherein silver halide grains in the emulsion layer are subjected to reduction sensitization and contain a radical scavenger, prior to the completion of a chemical sensitization. There is also disclosed a silver halide emulsion and a method of manufacturing the same. The said silver halide photosensitive material has a enhanced sensitivity, without causing high fog.

Abstract: A silver halide emulsion contains silver halide grains in a dispersion medium. Tabular silver halide grains having a thickness of less than 0.5 .mu.m, a diameter of 0.3 .mu.m or more, an aspect ratio of 2 or more, and 10 or more dislocations per grain account for 50% or more of a projected area of all the silver halide grains. The grains are formed in the presence of at least one compound which can oxidize silver atoms.

Abstract: The invention relates to a radiation sensitive emulsion comprised of a dispersing medium and silver iodochloride grainsWherein the silver iodochloride grainsare partially bounded by {100} crystal faces satisfying the relative orientation and spacing of cubic grains andcontain from 0.05 to 1 mole percent iodide, based on total silver, with maximum iodide concentrations located nearer the surface of the grains than their centerand wherein said emulsion further comprises a quinone comprising ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 may be independently substituted or non-substituted alkyl, aryl, alkylaryl, or halogen, carboxy, amido, cyano, methoxy; together R.sub.1 and R.sub.2, R.sub.3 and R.sub.4 may form carbocyclic, heterocyclic, aromatic, or heteroaromatic rings.

Abstract: This invention contemplates droplets of liquid lubricant, each droplet coated with colloidal particulate suspension stabilizing agent.The invention also contemplates a method of making size stable lubricant droplets by forming a discontinuous phase of lubricant droplets in a continuous aqueous phase containing a particulate suspension stabilizing agent, reducing the size of the lubricant droplets and limiting the coalescence of the lubricant droplets by action of the particulate suspension stabilizing agent.A third aspect of the invention is an imaging element comprising a support, at least one light-sensitive layer and a protective layer further removed from the support than the light-sensitive layer, at least one layer containing droplets of lubricant coated with colloidal particulate suspension stabilizing agent.

Abstract: Disclosed is a silver halide color photographic material containing at least one pyrazolotriazole magenta of formula (I) and at least one 1,3,5-triazine compound of formula (II) in the same photographic constitutive layer. ##STR1## wherein R represents a hydrogen atom or a substituent; Za, Zb and Zc each represent a methine group, a substituted methine group, .dbd.N-- or --NH--; Y represents a hydrogen atom or a group capable of splitting off from the formula by coupling reaction with an oxidation product of a developing agent; and the formula may form a dimer or a higher polymer via R, Y or the substituted methine group for Za, Zb or Zc. ##STR2## wherein A, B and C each represent a substituted or unsubstituted alkyl, substituted or unsubstituted aryl, substituted or unsubstituted alkoxy, substituted or unsubstituted aryloxy or substituted or unsubstituted heterocyclic group, provided that at least one of A, B and C represents a group of a general formula (III): ##STR3## wherein R.sub.1 ' and R.sub.

Abstract: A silver halide photographic element comprising a silver halide emulsion which is greater than 50 mole % silver chloride, said emulsion being in reactive association with a sulfur donating compound, and a sulfinate compound represented by Formula (I)Z--SO.sub.2 M.sup.1 (I)wherein Z is a non-metallic aryl, alkyl or heterocyclic group, and M is a cationic counter ion;and wherein the sulfur donor is not a thiosulfonate or a diamino disulfide; and a method of making the emulsion.