Abstract: A silver halide black-and-white photographic light sensitive material is disclosed, comprising a support having thereon a silver halide emulsion layer comprising silver halide grains, wherein at least 50% of the total grain projected area is accounted for by tabular grains having a chloride content of 20 mol % or more, two parallel {100}major faces and an average aspect ratio of 2 or more, said tabular grains being prepared by nucleating in the presence of a surfactant comprised of polyalkyleneoxide block copolymer.

Abstract: A dispersion of fine solid particles having good production suitability, good dispersion stability and high spectral absorption, which is obtained by pulverizing an aqueous slurry of a dye represented by general formula (II) in the presence of a polyalkylene oxide represented by general formula (I-a) or (I-b): ##STR1## wherein a and b each represents a value of 5 to 500.D--(X).sub.y (II)wherein D represents a compound residue having a chromophore, X represents dissociative hydrogen or a group having dissociative hydrogen, and y is an integer of 1 to 7. An embodiment that a compound represented by general formula (I) is present together with the polyalkylene oxide of general formula (I-a) or (I-b) is also disclosed.

Abstract: A photographic emulsion is disclosed comprised of coprecipitated radiation-sensitive silver halide grains containing greater than 70 mole percent bromide, based on silver, and exhibiting a coefficient of variation of less than 30 percent. Greater than 90 percent of total projected area of the grains is accounted for by tabular grains having {111} major faces, exhibiting a thickness of less than 0.07 .mu.m, and having latent image forming silver salt epitaxy chemical sensitization sites on their surfaces, and a dispersing medium that contains a grain dispersity reducing concentration of a polyalkylene oxide block copolymer surfactant comprised of two terminal lipophilic alkylene oxide block units linked by a hydrophilic alkylene oxide block unit accounting for from 4 to 96 percent of the molecular weight of the polymer.

Abstract: A method of preparing a silver halide emulsion is disclosed, comprising a disperse medium and silver halide grains, said method comprising the steps of:(1) forming silver halide tabular grains for the silver halide emulsion in the presence of at least one polymer having repeating units represented by formula (1),(2) subsequently to the step (1), removing the polymer by washing with water, and(3) using as seed crystals the silver halide tabular grains obtained via steps (1) and (2) and further growing these grains;--(R--O).sub.n -- (1)wherein each R represents an alkylene group having 2 to 10 carbon atoms, and n is an average number of repeating units which ranges from 4 to 200, and further a silver halide photographic material is disclosed, comprising the above silver halide emulsion.

Abstract: A radiation-sensitive emulsion is disclosed comprised of a dispersing medium and a coprecipitated grain population having a coefficient of variation of less than 30 percent. The coprecipitated grain population consists essentially of tabular grains containing greater than 50 mole percent bromide, based on silver, and having {111} major faces. The dispersing medium is comprised of (a) a cationic starch peptizer and (b) a polyalkylene oxide block copolymer surfactant.

Abstract: The present invention provides a silver halide photographic photosensitive material which comprises a support and at least one silver halide photographic emulsion layer, a hydrazine compound being contained in at least one of the emulsion layer and other hydrophilic colloid layer, characterized in that at least one of the emulsion layer and other hydrophilic colloid layer contains a water-soluble polymer having an amino group exclusive of a primary amino group as a promoter for enhancement of contrast. By using the said silver halide photographic photosensitive material, images of high contrast can be formed using a developer of low pH value without causing change in photographic performances even when the pH value changes.

Abstract: A photographic film that is especially useful as a motion picture print film is comprised of a support having, in order, on one side thereof an antihalation undercoat and at least one silver halide emulsion layer and having, in order, on the opposite side thereof an antistatic layer and a protective topcoat; wherein the protective topcoat is comprised of a polyurethane binder and a lubricant and the polyurethane binder has a tensile elongation to break of at least 50% and a Young's modulus measured at 2% elongation of at least 50000 lb/in.sup.2. The polyurethane binder provides a tough but flexible protective topcoat that is capable of resisting abrasion and scratching when the film is conveyed through a projector and capable of standing up to the repeated use to which motion picture print films are typically subjected.

Abstract: There are disclosed a hexagonal silver halide tabular emulsion having an excellent monodispersibility and a silver halide photographic material which contains the above tabular silver halide emulsion and excels in a graininess, a sensitivity and a preservability. The above silver halide photographic emulsion is prepared in the presence of at least one of the polymers having a recurring unit represented by the Formula (1) and at least one of the polymers having a recurring unit represented by Formula (2):--(R--O).sub.n -- (1)--(CH.sub.2 CH.sub.2 O).sub.m -- (2)wherein R represents an alkylene group having 3 to 10 carbon atoms; and n and m each represents an average number of the recurring unit, respectively and each represents 4 to 200.

Abstract: Disclosed is a silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, wherein the silver halide emulsion is produced in the presence of a polyalkylene oxide group-containing organopolysiloxane. The emulsion being produced in the presence of the defoaming agent is prevented from being foamed in a stirrer rotating at an elevated rotation speed. The stirring performance of the stirrer is enlarged, and the conditions for forming the silver halide grains can be controlled more uniformly. The photographic properties of the emulsion are improved and it is easy to scale up the production of the emulsion.

Abstract: Disclosed is a method for producing silver halide grains containing tabular grains having a thickness of from 0.02 to 0.3 .mu.m and an aspect ratio (diameter/thickness) of from 2 to 50 at a proportion of from 75 to 100% of the total projected area of silver halide grains, which comprises at least nucleation, ripening and growing steps in a dispersion medium solution consisting of water and a dispersion medium, wherein gelatin having the following characteristics (a) occupies from 30 to 100 wt % of said dispersion medium used in said growing step:characteristics (a)the relation between the number percentage of a chemically modified --NH.sub.2 group in the gelatin and the methionine content of the gelatin is in the region a.sub.1 depicted in FIG. 1.Also disclosed is a silver halide emulsion comprising at least a dispersion medium and silver halide grains produced by the above-described method.

Abstract: A light-sensitive silver halide emulsion contains tabular silver halide grains with an equivalent-circle diameter/thickness ratio of 8 to 100. In this light-sensitive silver halide emulsion, a variation coefficient of a grain size distribution of the tabular silver halide grains is 1% to 20%, and 50% or more (number) of all of the tabular silver halide grains are grains whose ratio, b/a, of a longest distance, a, between two or more twin planes of the tabular silver halide grain to a grain thickness, b, is 1.5.ltoreq.b/a<5.

Abstract: A silver halide photographic material comprises a plastic support, a silver halide emulsion layer and an antistatic backing layer. A process for the preparation of the photographic material comprises the steps of: coating a silver halide emulsion on one side of the support to form the silver halide emulsion layer; and coating an aqueous coating solution on the other side of the support to form the antistatic backing layer. The coating solution contains electroconductive particles, a binder and a specific nonionic surface active agent represented by the formula (Ia), (Ib), (II), (III) or (IV).

Abstract: The present invention relates to a silver halide photographic material comprising a support, at least one silver halide emulsion layer coated thereon, and a hydrophilic colloid layer coated on said at least one silver halide emulsion layer, wherein said hydrophilic colloid layer comprises a combination of (a) at least one surfactant selected from the group consisting of non-ionic polyoxyethylene surfactants and anionic polyoxyethylene surfactants and (b) at least one surfactant selected from the group consisting of non-ionic perfluoroalkylpolyoxyethylene surfactants and polyoxyethylene-modified polysiloxane surfactants.

Abstract: A silver halide photographic material is disclosed, which comprises at least one compound represented by the following general formula (1) or (2): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 each represent a C.sub.25-70 alkyl group; X, Y and Z each represent a divalent bridging group; A and B each represent any unit selected from the group consisting of --(CH.sub.2 CH.sub.2 O).sub.a --, --(CH.sub.2 CH(OH)CH.sub.2 O).sub.b --, --((CH.sub.2).sub.c CH(R)CH.sub.2 O).sub.d --, and --(CH.sub.2 CH.sub.2 O).sub.e --(CH.sub.2 CH(OH)CH.sub.2 O).sub.f --((CH.sub.2).sub.c CH(R)CH.sub.2 O).sub.g -- in which c represents an integer 1 to 3 and R represents H, CH.sub.3 or phenyl group; D represents a hydrogen atom or C.sub.1-8 alkyl group; and a represents 5 to 40, b and d each represent 5 to 30, e represents 0 to 40, and f and g each represent 0 to 30.

Abstract: The present invention relates to a method for forming a color image in a silver halide color photographic material comprising a reflective support having coated thereon a composition comprising a polyester resin and a white pigment mixed and dispersed in said polyester resin, at least one yellow color forming silver halide photosensitive emulsion layer, at least one magenta color forming silver halide photosensitive emulsion layer, and at least one cyan color forming silver halide photosensitive emulsion layer on said support, each of said yellow, magenta and cyan color forming silver halide photosensitive emulsion layers having silver halide grains containing 95 mol % or more of silver chloride, wherein said method comprises the steps of exposing imagewise said silver halide color photographic material to light, developing said imagewise exposed silver halide color photographic material in a color developing solution, subjecting said developed silver halide color photographic material to desilvering by bleac

Abstract: The present invention relates to a silver halide photographic material comprising a support, at least one silver halide emulsion layer coated thereon, and a hydrophilic colloid layer coated on said at least one silver halide emulsion layer, wherein said hydrophilic colloid layer comprises a combination of (a) at least one surfactant selected from the group consisting of non-ionic perfluoroalkyl(ene)polyoxyethylene surfactants and polyoxyethylene-modified polysiloxane surfactants, and (b) at least one salt of perfluoroalkylsulfonyl imide or perfluoroalkylsulfonyl methide.

Abstract: A water-soluble or water-dispersible, non-ionic surface active compound has the formulaZNHQNHZ (I)whereineach Z independently is a polysaccharide group linked to the remainder of the molecule through one of its ketone groups; and,Q together with the two NH groups to which it is attached represents the atoms necessary to complete a polyalkyleneamine unit wherein at least one of the amine nitrogen atoms has a hydrophobic, substituted or unsubstituted hydrocarbon group linked thereto. Such surfactants can be used in hydrophilic colloid compositions in the manufacture of photographic materials.

Abstract: The present invention relates to a silver halide photographic material comprising a support and at least one silver halide emulsion layer coated thereon, wherein said silver halide emulsion layer comprises from 5 to 15% by weight of a water-soluble, electrically conductive copolymer (1) containing carboxylic groups and sulfonic groups and wherein a hydrophilic colloid layer comprising a combination of a fluorinated surfactant (2), a non-ionic polyoxyethylene surfactant (3) and an anionic polyoxyethylene surfactant (4) is coated on said at least one silver halide emulsion layer.

Abstract: It has been discovered that when polyalkylene oxide compounds or block polymeric or block oligomeric surface active compounds comprising at least a polyoxypropylene (POP) block and a polyoxyethylene (POE) block are added to conventional dispersions of yellow couplers (that is dispersions in which the dispersed particles have a particle size of 0.1 to 0.6 .mu.m), such dispersions in a coated silver halide photographic element produce substantially higher dye yield compared to the conventional dispersion without any additive. Further, the yellow dye formed from such dispersions containing the addenda of this invention are substantially more light stable compared to dispersions that does not contain such addenda.The invention is carried out just by adding required amounts of the said polyoxyethylene (POE)--polyoxypropylene (POP) compound to a preformed milled coupler dispersion prior to coating the photographic element.

Abstract: A coating composition suitable for use in the preparation of a photographic material comprises an aqueous solution of a hydrophilic colloid and a surface active coating aid having the formulaCF.sub.3 (CF.sub.2).sub.n CH.sub.2 O(glycidyl).sub.m Hwhereinn is an integer from 4 to 7; and,m is an integer from 6 to 45.

Abstract: The tendency of a photographically useful compound (PUC) to crystallize when dispersed in an aqueous medium is inhibited by codispersing with the PUC a non-color forming, oil-soluble, monomeric or oligomeric organic compound having a glass transition temperature between 0.degree. and 150.degree. C. Preferred organic compounds are oil-soluble sucrose esters, such as sucrose octaacetate, and rosin and derivatives thereof.

Abstract: A color photographic material with at least one silver halide emulsion layer which contains a color coupler distributed in a polymeric oil former and at least one compound of the formula (I) ##STR1## in which R means alkyl, cycloalkyl, alkenyl, aryl, acyl, alkylsulphonyl or arylsulphonyl,R.sub.1 means a chemical bond or a divalent bridging member,R.sub.2 and R.sub.3 mean alkyl, alkoxy, alkenyl, cycloalkyl, aryl or aryloxy or two residues R.sub.2 or R.sub.3 the remaining atoms of a benzene ring condensed with the phenyl residue andm and n mean 0 to 3, wherein all alkyl, alkoxy, cycloalkyl, alkenyl, aryl, aryloxy and acyl residues may be further substituted,is characterized by improved color stability.

Abstract: A silver halide photographic emulsion prepared in the presence of at least one member of polymers comprising at least one repeating unit derived from at least one member of monomers represented by the following formula (1) ##STR1## wherein R.sup.1 represents a hydrogen atom or a lower alkyl group; R.sup.2 represents a monovalent substituent group; R.sup.3 represents an alkylene group having 3 to 10 carbon atoms; L represents a bivalent bonding group; and n represents the mean number of a repeating unit represented by --R.sup.3 --O-- and is a number of at least 4, but not more than 200.

Abstract: A coating composition for applying a layer to a photographic element which comprises gelatin, water and from 0.35 to 1 percent by weight based on the total weight of the composition of a surfactant mixture comprising from 20 to 60 percent by weight of a mixture of anionic surfactants, from 30 to 75 percent by weight of a nonionic surfactant and from 3 to 13 percent by weight of a cationic surfactant based on the total weight of surfactant mixture; the mixture of anionic surfactants comprising from 30 to 85 percent by weight of di- and tri-isopropyl naphthalene sulfonate, sodium salts and from 15 to 70 percent by weight of a dioctyl sulfosuccinate, sodium salt; a di-fluoroalkyl sulfosuccinate, sodium salt where alkyl is C.sub.4 -C.sub.6 ; perfluoro-octyl sulfonate(tetraethyl ammonium salt) or a perfluoro-alkyl carboxylate ammonium salt where alkyl is a mixture of C.sub.5 -C.sub.

Abstract: A color image-forming method wherein a cyan dye image having an excellent hue and less fading due to light and humidity can be obtained and the discharge amount of a processing solution can be reduced is disclosed, which comprises subjecting a silver halide color photographic light-sensitive material comprising a support, having provided thereon a light-sensitive silver halide emulsion layer containing a yellow dye-forming coupler, a light-sensitive silver halide emulsion layer containing a magenta dye-forming coupler, a light-sensitive silver halide emulsion layer containing a cyan dye-forming coupler, and a non-light-sensitive hydrophilic colloid layer, to an exposure and then to a color development with a color developing solution, wherein the above silver halide color photographic light-sensitive material contains at least one scarcely water soluble epoxy compound having at least one group represented by Formula (AO) in at least one layer of the silver halide emulsion layers and non-light-sensitive hydrop

Abstract: A photographic material comprising at least one silver halide emulsion layer and a copolyester support-said copolyester comprising polyether group(s) in the side chain is disclosed.Preferably the copolyester is prepared by copolycondesing diol moieties that comprise a polyether group substituted with a sulfonic acid group in acid or salt form into the copolyester.

Abstract: Water-soluble, non-ionic surface active compounds are provided having the formula ##STR1## wherein R.sup.1 and R.sup.2 are each independently hydrogen or an alkyl group having from 1 to 4 carbon atoms;X is a hydrophobic substituted or unsubstituted arylene group or a hydrophobic substituted or unsubstituted alkylene group;Y.sup.1 and Y.sup.2 are each independently a chemical bond, --CO-- or --(CH.sub.2).sub.m NR.sup.3 CO--;m is an integer from 1 to 6;R.sup.3 is as defined for R.sup.1 and R.sup.2 ; and,Z.sup.1 and Z.sup.2 are each independently a hydrophilic polyhydroxyalkyl group. The compounds are particularly useful as coating aids for the coating of hydrophilic colloid layers in the preparation of photographic materials.

Abstract: A fluorinated polymer comprising at least three different groups within the polymer chain derived from reactive monomers, the monomers comprising:(a) a fluorinated, ethylenically unsaturated monomer;(b) a hydroxyl-containing, ethylenically unsaturated monomer; and(c) a polar, ethylenically unsaturated monomer.The fluorinated polymers provide a surfactant that is particularly useful in the coating of polymeric layers. The surfactants can reduce surface anomalies, such as mottle when used to coat photothermographic and thermographic elements from certain solvent systems. The present invention also provides photothermographic and thermographic elements comprising the foregoing fluorinated polymers.

Abstract: Polyhydroxyalkyl compounds and co-stabilizing agents are used to impart stabilizing or antifogging properties to photographic recording materials.

Abstract: The invention discloses an aqueous-developable chromogenic photographic heat-transferable non-aqueous dye-diffusion-transfer photographic element comprising radiation sensitive silver halide, a dye-providing compound that forms or releases a heat-transferable, image dye upon reaction of said compound with the oxidation product of a primary amine developing agent, a hydrophilic binder, and a thermal solvent for facilitating non-aqueous diffusion transfer wherein said thermal solvent comprises a sugar group containing amphiphilic compound, said amphiphilic compound comprising from one to three independently constituted 3 to 22 carbon atom hydrophobic tail(s) with one or more attached hydrophilic mono or oligosaccaridic rings or chains such that the HLB value of the compound is less than about 13.

Abstract: A coating composition suitable for use in the preparation of a photographic material comprises an aqueous solution of a hydrophilic colloid and a surface active coating aid having the formulaCF.sub.3 (CF.sub.2).sub.n CH.sub.2 O(glycidyl).sub.m Hwhereinn is an integer from 4 to 7; and,m is an integer from 6 to 45.

Abstract: Light-sensitive silver halide color photographic elements comprising a silver halide photographic emulsion layer including a) at least one 2,5-diacylamino phenol cyan coupler dissolved in low-boiling water-immiscible organic solvent droplets dispersed in said emulsion layer in reactive association with at least one non-ionic surfactant compound having a HLB higher than 20 and at least one anionic surfactant compound and b) at least one cationic carbocyanine spectral sensitizing dye.

Abstract: A silver halide photosensitive material comprising a support having thereon a photosensitive layer comprising at least one silver halide emulsion layer and with a total silver coating amount of silver halide of 2.5 g/m.sup.2 or less, and wherein at least one of the layers of the photosensitive material contains a surfactant containing a (poly)glycerol group.

Abstract: The invention relates to a melt for the coating of a layer in a photographic element and which contains water, gelatin and an anionically charged, hydrophobic group containing compound that is (a) water soluble or soluble in a solution of 5 to 20 percent of water miscible organic solvent,said melt being further characterized by containing an amount of an amphiphilic compound which is sufficient to reduce the viscosity of said melt, said compound selected from the class consisting of:Type A: Sugar (saccharidic) compounds, characterized by having one to three hydrophobic groups, each group containing from about 6 to about 22 carbon atoms, and having one or more attached hydrophilic mono- or oligosaccharidic hydrophilic chains that may or may not be terminated by a negatively charged group such as a sulfate, sulfonate or a carboxyl group; andType B: Compounds compromising a hydrophobic group having from about 6 to about 22 carbon atoms and having one or two attached hydrophilic chains comprising at least 4 oxyet

Abstract: Water-soluble, non-ionic surface active compounds are provided having the formula ##STR1## wherein R.sup.1 and R.sup.2 are each independently hydrogen or an alkyl group having from 1 to 4 carbon atoms;X is a hydrophobic substituted or unsubstituted arylene group or a hydrophobic substituted or unsubstituted alkylene group;Y.sup.1 and Y.sup.2 are each independently a chemical bond, --CO-- or --(CH.sub.2).sub.m NR.sup.3 CO--;m is an integer from 1 to 6;R.sup.3 is as defined for R.sup.1 and R.sup.2 ; and,Z.sup.1 and Z.sup.2 are each independently a hydrophilic polyhydroxyalkyl group. The compounds are particularly useful as coating aids for the coating of hydrophilic colloid layers in the preparation of photographic materials.

Abstract: A process is disclosed of accelerating the preparation of a photographic emulsion containing tabular silver halide grains exhibiting a reduced degree of total grain dispersity. A dispersing medium is provided containing bromide ions, and a population of silver halide grain nuclei containing parallel twin planes is formed in the dispersing medium. A portion of the grain nuclei are ripened out, and then the silver halide grain nuclei containing parallel twin planes remaining are grown to form tabular silver halide grains. A polyalkylene oxide containing both hydrophilic and lipophilic block units is selected from among those known to be capable of reducing total grain dispersity when present during nucleation. However, in this process precipitation is accelerated while maintaining low dispersity of the total grain population by forming twin planes in the grain nuclei within the pAg and temperature boundaries of Curve A in FIG.

Abstract: A radiographic element is disclosed comprised of a film support capable of transmitting radiation to which the radiographic element is responsive having opposed major surfaces, and, coated on the opposed major surfaces, spectrally sensitized high tabularity tabular grain emulsion layer units, and, interposed between each of the emulsion layer units and the support, means for absorbing radiation to which said emulsion layer units are responsive. The emulsion layer units exhibit a coefficient of variation of less than 15 percent, based on the total grain population having an equivalent circular diameter of greater than 0.1 .mu.m, and greater than 97 percent of the projected area of grains having an equivalent circular diameter of greater than 0.1 .mu.m is accounted for by tabular grains having a mean thickness of less than 0.3 .mu.m and a halide content of from 0 to 5 mole percent chloride, from 0 to 5 mole percent iodide, and from 90 to 100 mole percent bromide, based on total silver.

Abstract: A multicolor photographic element capable of forming a viewable reversal dye image is disclosed comprising a support and, coated on the support, a blue recording yellow dye image forming layer unit, a green recording magenta dye image forming layer unit, and a red recording cyan dye image forming layer unit, each of the dye image forming layer units containing at least one silver halide emulsion layer comprised of a vehicle and silver halide grains having (1) a halide content of from 0 to 5 mole percent chloride, from 0.1 to 20 mole percent iodide, and from 80 to 99.9 mole percent bromide, based on total silver. At least one of the silver halide emulsion layers in one of the layer units positioned to receive exposing radiation prior to at least one of the green or red recording layer units is a tabular grain emulsion layer in which a polyalkylene oxide block copolymer is present selected to allow the preparation of tabular grains having a mean thickness of less than 0.3 .mu.

Abstract: A photographic emulsion is disclosed containing a coprecipitated grain population exhibiting a coefficient of variation of less than 10 percent. The coprecipitated grain population consists essentially of tabular grains which are at least 50 mole percent bromide, based on silver, and which have a mean thickness in the range of from 0.080 to 0.3 .mu.m, and a mean tabularity of greater than 8.

Abstract: The invention is performed by providing a first flow of water and surfactant, a second flow comprising solvent, base and photographic material, and mixing said first and second streams and either simultaneously or immediately following thereof neutralizing said streams to prevent hydrolysis of a hydrolyzable surfactant and/or premature precipitation of particles before neutralization. The streams then may be immediately treated for formation into photographic materials. In a preferred method the first and second stream may be brought together immediately prior to a mixer with addition of acid directly into the mixer to neutralize the dispersion of fine particles.

Abstract: A process is disclosed of preparing a photographic emulsion containing tabular silver halide grains exhibiting a reduced degree of total grain dispersity. After forming a population of silver halide grain nuclei containing parallel twin planes, a portion of the silver halide grain nuclei are ripened out. The silver halide grain nuclei containing parallel twin planes remaining are then grown to form tabular silver halide grains. The total grain dispersity of the emulsion is reduced by incorporating bromide ion in the dispersing medium prior to forming the silver halide grain nuclei and, at the time parallel twin planes are formed in the silver halide grain nuclei, a polyalkylene oxide block copolymer surfactant containing at least three terminal lipophilic alkylene oxide block units each linked through a hydrophilic alkylene oxide block linking unit accounting for at least 4 percent of the molecular weight of the copolymer.

Abstract: A process is disclosed of preparing a photographic emulsion containing tabular silver halide grains exhibiting a reduced degree of total grain dispersity. After forming a population of silver halide grain nuclei containing parallel twin planes, ripening out a portion of the silver haide grain nuclei. The silver halide grain nuclei containing parallel twin planes remaining are then grown to form tabular silver halide grains. The total grain dispersity of the emulsion is reduced by incorporating bromide ion in the dispersing medium prior to forming the silver halide grain nuclei and, at the time parallel twin planes are formed in the silver halide grain nuclei, a polyalkylene oxide block copolymer surfactant containing at least three terminal hydrophilic alkylene oxide block units each linked through a lipophilic alkylene oxide block linking unit accounting for at least 4 percent of the molecular weight of the copolymer.

Abstract: A silver halide photographic material is disclosed, comprising a support having thereon at least one of silver halide emulsion layers and other hydrophilic colloid layers, wherein said at least one of silver halide emulsion layers and hydrophilic colloid layers contains both a phosphagen polymer having a polyalkylene oxide group or a polyglycerol group in the side chain thereof and an anionic polymer salt.

Abstract: The invention is generally accomplished by utilization of a surfactant for very small particle photographic dispersions. Three types of such surfactants that have been identified are as follows:Type A--Surfactant comprising 6 to 22 carbon atom hydrophobic tail with one or more attached hydrophilic chains comprising at least 8 oxyethylene and/or glycedyl ether groups that may or may not be terminated with a negative charge such as a sulfate group.Type B--Block oligomeric surfactants comprising hydrophobic polyoxypropylene blocks (A) and hydrophilic polyoxyethylene blocks (B) joined in the manner of A--B--A, B--A--B, A--B, (A--B).sub.n .tbd.G.tbd.(B--A), or (B--A).sub.n .tbd.G.tbd.(A--B).sub.n, where G is a connective organic moiety and n is between 1 and 3.Type C--Sugar surfactants, comprising between one to three 6 to 22 carbon atom hydrophobic tail with one or more attached hydrophilic mono or oligosaccharidic chains that may or may not be terminated by a negatively charged group such as a sulfate group.

Abstract: A silver halide photosensitive material is disclosed, comprising a support having thereon at least one silver halide photosensitive layer and at least one layer containing an acidic dye, a cationic polymer mordant and gelatin, wherein said mordant containing layer further contains a dispersion of an anionic polymer thickener represented by formula (I):--A.sub.x --B).sub.y --E).sub.

Abstract: Light-sensitive silver halide photographic materials comprising a support base and one or more hydrophilic colloid layers, at least one of which is a silver halide emulsion layer, at least one of said hydrophilic colloid layers of said photographic materials containing both a) a non-ionic surface active agent having a polyoxyethylene group and b) a fluorinated organic compound, characterized by the fact that said fluorinated organic compound is the reaction product of a polyoxyalkyleneamine compound and a fluorinated organic acid compound.

Abstract: A silver halide photographic light-sensitive material is disclosed, which has high sensitivity, high contrast and improved standing stability in the manufacturing process. The light-sensitive material has a silver halide emulsion layer and silver halide grains contained in the emulsion layer are spectrally sensitized by a specific sensitizing dye dissolved in a chain hydrocarbon compound having two or more more hydroxy groups or a mixture of the hydrocarbon compound and a water-miscible solvent.

Abstract: A photographic element is described which comprises a silver halide emulsion layer and a bridged tricarbocyanine infrared sensitizing dye which element is stabilized by a combination of an organic reducing agent and a surface active agent. A stabilized photographic silver halide emulsion melt is also described.

Abstract: A silver halide photographic material composed of a support having thereon at least one light-sensitive silver halide emulsion layer, at least one layer of the material containing the combination of a lubricant and a water-soluble compound represented by formula (I):A-X-Y-B (I)wherein A represents an alkyl group, alkenyl group or aryl group which has from 8 to 25 carbon atoms; X represents --O--, ##STR1## --S--, ##STR2## wherein R represents an alkyl group containing from 1 to 10 carbon atoms or -Y-B; Y consists of at least --(CH.sub.2 CH.sub.2 O).sub.a -- and ##STR3## wherein a is an integer from 5 to 50, and b is an integer from 2 to 20; and B represents hydrogen, an alkyl group containing at most 8 carbon atoms, or a phenyl group. The material has superior developement and drying characteristics, particularly in avoidance of droplet marks.

Abstract: The invention is generally accomplished by utilization of a surfactant for very small particle photographic dispersions. Three types of such surfactants that have been identified are as follows:Type A--Surfactant comprising 6 to 22 carbon atom hydrophobic tail with one or more attached hydrophilic chains comprising at least 8 oxyethylene and/or glycedyl ether groups that may or may not be terminated with a negative charge such as a sulfate group.Type B--Block oligomeric surfactants comprising hydrophobic polyoxypropylene blocks (A) and hydrophilic polyoxyethylene blocks (B) joined in the manner of A-B-A, B-A-B, A-B, (A-B).sub.n .tbd.G.tbd.(B-A), or (B-A).sub.n .tbd.G.tbd.(A-B).sub.n, where G is a connective organic moiety and n is between 1 and 3.Type C--Sugar surfactants, comprising between one to three 6 to 22 carbon atom hydrophobic tail with one or more attached hydrophilic mono or oligosaccharidic chains that may or may not be terminated by a negatively charged group such as a sulfate group.