Film Or Film Coating Improvement Ingredient Containing, E.g., Wetting Agent, Coating Aid, Plasticizer, Antistatic Agent, Etc. Patents (Class 430/631)
  • Patent number: 5089380
    Abstract: Base and auxiliary solvent solubilized precipitated dispersions of couplers and other photographic materials usually produce very small particle dispersions, and usually such dispersions are extremely highly reactive because of the smallness of the particle size. However, some relatively more hydrophobic couplers, even though they produce small particles when a dispersion is formed by the precipitation technique, lead to extremely unreactive dispersions. The method of this invention constitutes a single step precipitation technique where a permanent high boiling water insoluble coupler solvent is incorporated into the precipitated particles to produce photographically highly active coupler dispersions.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: February 18, 1992
    Assignee: Eastman Kodak Company
    Inventor: Pranab Bagchi
  • Patent number: 5089382
    Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, wherein in at least one silver halide emulsion layer contains a compound represented by the following general formula (I) ##STR1## wherein Z represents an oxygen atom or a sulfur atom; R.sub.101 and R.sub.102, which may be the same or different, represent each an alkyl group and at least one of R.sub.101 and R.sub.102 is a butyl group, a pentyl group, a hexyl group, a heptyl group or an octyl group; V.sub.1, V.sub.2, V.sub.3, V.sub.4, V.sub.5, V.sub.6, V.sub.7 and V.sub.8, which may be the same or different, each represent a hydrogen atom, a halogen atom, an alkyl group, an acyl group, an acyloxy group, an alkoxycarbonyl group, a carbamoyl group, a sulfamoyl group, a carboxyl group, a cyano group, an alkoxy group, an alkylthio group, an alkylsulfonyl group, a sulfo group or an aryl group; of V.sub.1 to V.sub.
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: February 18, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Nobuo Sakai
  • Patent number: 5087554
    Abstract: The invention provides stable dispersions of couplers and methods of their formation. The stable dispersions are formed by the use of a nonionic water soluble polymer in combination with an anionic surfactant having a sulfate or sulfonate head group and a hydrophobic group of 8 to 20 carbons. The preferred nonionic water soluble polymers are polyethyleneoxide and polyvinylpyrrolidene. It is preferred that the dispersions have a pH of between about 5 and 5.5.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: February 11, 1992
    Assignee: Eastman Kodak Company
    Inventors: Krishnan Chari, James T. Beck
  • Patent number: 5085980
    Abstract: A photographic element is disclosed comprising a support having provided thereon a highly water-absorbing high molecular weight compound having degree of swelling of 5 or more.
    Type: Grant
    Filed: March 12, 1991
    Date of Patent: February 4, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshiaki Aono, Koichi Nakamura, Takeshi Shibata
  • Patent number: 5064752
    Abstract: A silver halide photographic material comprising a support having provided thereon at least two hydrophilic colloid layers, wherein at least one of the hydrophilic layers comprises water or a hydrophilic colloid and a compound represented by formula (I) dispersed therein using water or a water-soluble organic solvent:PWR-(Time).sub.t -PUG (I)wherein PWR represents a group capable of releasing (Time).sub.t -PUG upon reduction;Time represents a group capable of releasing the PUG residual group by the successive reaction, after being released as (Time).sub.t -PUG;t represents 0 or 1;PUG represents a photographically useful group; and at least one water-soluble group exists in one molecule of the compound.
    Type: Grant
    Filed: June 25, 1990
    Date of Patent: November 12, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazunobu Katoh, Kozo Sato, Keisuke Shiba
  • Patent number: 5049483
    Abstract: There is disclosed a direct positive silver halide light-sensitive material which can be processed in ultra-rapid processing and have a higher sensitivity, a lower Dmin, an excellent antistatic property and less flactuation of the properties in storing. The light-sensitive material contains an electron-accepting compound in a silver halide emulsion layer, and a fluorinated surfactant and/or at least one of the compounds represented by Formulas I-a to II-b in a photographic component layer: ##STR1## wherein R.sub.1 to R.sub.4 represent independently a hydrogen atom, a lower alkyl group, an alkoxy group, a carboxy group, an alkoxycarbonyl group, a sulfo group, a halogen atom, and a nitro group, provided that at least one of R.sub.1 and R.sub.2 is a carboxy group, an alkoxycarbonyl group or a sulfo group.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: September 17, 1991
    Assignee: Konica Corporation
    Inventors: Naoko Yatsuyanagi, Tsuyoshi Mitsuhashi
  • Patent number: 5047315
    Abstract: A silver halide color photographic material comprising a support having provided thereon a photographic layer containing:a) at least one compound capable of chemically binding with an aromatic amine developing agent or its oxidation product, which remains after color development processing, to produce a chemically inert and substantially colorless compound andb) at least one of the compounds presented by the following Formulae (I), (II) or (III): ##STR1## wherein X and X' each represents a divalent to hexavalent polyvalent group; n and m each represents an integer of 2 to 6; R represents an aliphatic group; R' represents an aliphatic group or an aromatic group, provided that R or R' existing in the same molecule may be the same or different from each other; R.sub.1, R.sub.2, R.sub.3 and R.sub.
    Type: Grant
    Filed: September 12, 1988
    Date of Patent: September 10, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Osamu Takahashi
  • Patent number: 5037734
    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.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: August 6, 1991
    Assignee: Eastman Kodak Company
    Inventors: Jerome R. Lenhard, Bonnie R. Hein
  • Patent number: 5028520
    Abstract: A silver halide photographic material for X-ray use comprising a support having provided thereon at least one hydrophilic colloid layer, at least one of which is a silver halide emulsion layer, wherein the silver halide emulsion layer contains tabular silver halide grains having an aspect ratio of 3 or more, and at least one of the silver halide emulsion layers or other hydrophilic colloid layers of the photographic material contains a polyhydroxy-substituted benzene compound in an amount of from 3.times.10.sup.-2 mol to less than 5.times.10.sup.-1 mol per mol of silver.
    Type: Grant
    Filed: May 26, 1989
    Date of Patent: July 2, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tadashi Ito
  • Patent number: 5028516
    Abstract: A method of forming an image comprising exposing, developing and fixing a laser scanner-utilizable silver halide photographic material which has at least one silver halide emulsion layer sensitized spectrally in an infrared region on one side of a support, said silver halide photographic material containing in at least one layer located on the emulsion layer side one or more of an additive selected from among:(1) surface active agents having a solubility of 0.005 wt % or more at 30.degree. C. in a developer and a surface tension of 45 dyne/cm or less (measured at 30.degree. C. in a condition of 1.0 wt % aqueous solution), and(2) polymers represented by the following general formula (I), and having a molecular weight of from 2,000 to 500,000:--X).sub.x (Y).sub.
    Type: Grant
    Filed: March 27, 1989
    Date of Patent: July 2, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuo Mukunoki, Naoki Arai, Kazuo Kagawa
  • Patent number: 5019491
    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.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: May 28, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kazuhiko Takeuchi
  • Patent number: 5019490
    Abstract: Silver halide photographic materials are disclosed, comprising a support carrying at elast one hydrophilic organic colloid layer in which at least one photographically useful reagent is dispersed with at least one of ethylenic addition polymerized polymer which contains at least 50% by weight of trifluorochloroethylene units.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: May 28, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hidetoshi Kobayashi, Osamu Takahashi
  • Patent number: 5013639
    Abstract: Aliphatic diesters of alkylenedicarboxylic acid compounds are water-immiscible high-boiling organic solvents useful for dispersing hydrophobic photographic additives in hydrophilic colloid compositioins which are incorporated into light-sensitive silver halide photographic materials.In particular, said aliphatic diesters of alkylenedicarboxylic acid compounds correspond to the general formula ##STR1## wherein R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9 and R.sub.10, equal or different, each represents a hydrogen atom or a lower alkyl group, with the proviso that at least one of R.sub.3, R.sub.5, R.sub.7 and R.sub.9 is an alkyl group or at least one pair of R.sub.4 and R.sub.6 or R.sub.8 and R.sub.10 are both alkyl groups and the total number of carbon atoms in R.sub.3, R.sub.4, R.sub.5 and R.sub.6 and the total number of carbon atoms in R.sub.7, R.sub.8, R.sub.9 and R.sub.10 is, each, less than 12, and m is 0 to 10.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: May 7, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Ivano Delprato, Agostino Baldassarri
  • Patent number: 5008179
    Abstract: The invention is accomplished by providing an aqueous dispersion of a photographic coupler by precipitation from a solvent solution by solvent and/or pH shift. A second aqueous dispersion of an activating permanent solvent for the photographic coupler is also provided. The dispersion of activating permanent solvent and photographic coupler are combined to form a combined dispersion which is mixed with a gelatin dispersion of silver halide particles to form a photographic emulsion suitable for casting as a photographic element. In a preferred method of the invention, the activating solvent is incorporated into a dispersion of latex particles prior to being combined with the dispersion of photographic coupler.
    Type: Grant
    Filed: November 22, 1989
    Date of Patent: April 16, 1991
    Assignee: Eastman Kodak Company
    Inventors: Krishnan Chari, Wayne A. Bowman, Brian Thomas
  • Patent number: 4990431
    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.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: February 5, 1991
    Assignee: Eastman Kodak Company
    Inventors: Pranab Bagchi, James T. Beck, Lia A. Crede
  • Patent number: 4990435
    Abstract: A polymeric latex to load photographically useful compounds into photographic elements comprises, as a dispersed phase, fine particles of a hydrophobic polymer which, for at least 70% of its weight, comprises:(a) repeating units derived from an ethylenic monomer containing a sulfonic or sulfonate group which monomer is capable of forming hydrophilic homopolymers, said units comprising 0.5 to 1.5% by weight of said hydrophobic polymer,(b) repeating units derived from an N-3-oxo-alkyl-substituted acrylamide, said units comprising from 5 to 25% by weight of said hydrophobic polymer, and(c) repeating units derived from acrylic acid ester monomers having a TG lower than 0.degree. C., said units comprising at least 43.5% by weight of said hydrophobic polymer,the remaining polymer weight percentage, from zero to 30%, being formed by repeating units derived from inert monomers and/or cross-linking monomers.
    Type: Grant
    Filed: December 10, 1986
    Date of Patent: February 5, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Angelo Vallarino, Mauro Besio, Lorenzo Vittore
  • Patent number: 4985338
    Abstract: A silver halide photographic material comprising a support having provided thereon at least one hydrophilic colloid layer, the hydrophilic colloid layer comprising polymer particles which contain hydrazine derivative.
    Type: Grant
    Filed: March 10, 1989
    Date of Patent: January 15, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Minoru Sakai, Kazunobu Katoh, Jiro Yamaguchi, Hisashi Okada, Tomokazu Yasuda, Masaki Satake
  • Patent number: 4980273
    Abstract: The matting agent particles of matted photographic imaging materials contain a finely divided solid as well as a dye that is only present at the image-forming points after exposure and development of the material. The starry night effect is thereby avoided. The dye can be formed during exposure and development from a precursor, e.g., from silver halide or from couplers for color photography or for diazo processes.
    Type: Grant
    Filed: July 26, 1989
    Date of Patent: December 25, 1990
    Assignee: E. I. DuPont de Nemours and Company
    Inventor: Manfred Fautz
  • Patent number: 4975363
    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 hydrophilic colloid surface layer of said photographic materials containing (a) a non-ionic surface active agent having a polyoxyethylene group, (b) a fluorinated organic compound which is the reaction product of a polyoxyalkyleneamine compound and a fluorinated organic acid compound, (c) discrete particles of a water-insoluble matting agent and (d) discrete particles of a water-insoluble surface modifying agent selected in the group of a silicone polymer and colloidal silica.
    Type: Grant
    Filed: November 3, 1989
    Date of Patent: December 4, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Elio Cavallo, Renzo Torterolo
  • Patent number: 4971885
    Abstract: A recording sheet which comprises a substrate having a large of a metal on the surface thereof, and a layer of microcapsules, said layer of microcapsules including a coupling agent to improve the adhesion of said microcapsule layer to said metal layer; the coupling agent is preferably a silane.
    Type: Grant
    Filed: May 4, 1989
    Date of Patent: November 20, 1990
    Assignee: The Mead Corporation
    Inventors: William A. Hammann, IV, Rong-Chang Liang, Teresa M. Thomas, Jesse Hipps, Sr.
  • Patent number: 4968599
    Abstract: Fluoroalkyl surface active agents are provided as effective coating aids for hydrophilic colloid coating compositions for photographic materials. These coating aids are of the formula: ##STR1## where M is a cation,x and y are each independently 0 or an integer of from 1 to 6 such that the sum of x and y is an integer of from 2 to 6, andp and q are each independently 1 or 2, with the proviso that when the sum of x and y is 6, p and q are each 1, and when the sum of x and y is 2, p and q are each 2.
    Type: Grant
    Filed: June 29, 1989
    Date of Patent: November 6, 1990
    Assignee: Eastman Kodak Company
    Inventors: Alan R. Pitt, Trevor J. Wear
  • Patent number: 4963476
    Abstract: A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer containing at least 1.0.times.10.sup.-4 gram equivalent of an anionic surface active material as anion per gram of a hydrophilic dispersion medium in the emulsion layer, the material having dispersed in the emulsion layer a light-collecting dye that has an emission band overlapping at least partially with the optical absorption band of a spectral sensitizing dye on a silver halide grain present in the emulsion layer, the light-collecting dye having an emission quantum yield of at least 0.1 at a concentration of 10.sup.-4 mol/dm.sup.3 in dry gelatin at room temperature, with the proviso that the light-collecting dye and the spectral sensitizing dye may be the same compound.
    Type: Grant
    Filed: September 23, 1988
    Date of Patent: October 16, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tadao Sugimoto, Masakazu Yoneyama
  • Patent number: 4957857
    Abstract: The invention provides stable dispersions of couplers and methods of their formation. The stable dispersions are formed by the use of a nonionic water soluble polymer in combination with an anionic surfactant having a sulfate or sulfonate head group and a hydrophobic group of 8 to 20 carbons. The preferred nonionic water soluble polymers are polyethyleneoxide and polyvinylpyrrolidene.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: September 18, 1990
    Assignee: Eastman Kodak Company
    Inventor: Krishnan Chari
  • Patent number: 4948701
    Abstract: A gelatino, silver halide, wash-out element containing a dispersion of a plasticized hydrophobic thermoplastic polymer dispersed as droplets in water, is described. This element can be used to prepare wash-out images of superior quality and integrity. Carbon black also may be present to enhance and darken the resulting images prepared therefrom.
    Type: Grant
    Filed: November 1, 1989
    Date of Patent: August 14, 1990
    Assignee: E. I. DuPont de Nemours and Company
    Inventor: Robert P. Held
  • Patent number: 4948720
    Abstract: The present invention provides a photographic element that includes an antistatic composition comprising a polyphosphazene comprising repeating units of the formula: ##STR1## and a salt that complexes with the polyphosphazene. In the above formula, x, y, R.sub.1, R.sub.4, R.sub.5, W, X, Y, and Z are as defined herein.
    Type: Grant
    Filed: January 6, 1989
    Date of Patent: August 14, 1990
    Assignee: Eastman Kodak Company
    Inventors: Janglin Chen, Wayne T. Ferrar, James E. Kelly, Akemi S. Marshall
  • Patent number: 4946768
    Abstract: 3-Aminoallylidenemalononitrile compounds corresponding to the formula: ##STR1## wherein R.sub.1 is a short alkyl chain having 1 to 3 carbon atoms and R is a substituted or unsubstituted long alkyl chain greater than 10 carbon atoms, are useful in photography for absorbing ultraviolet radiations in the range from 360 to 400 nm, with no undesired absorption near 420 nm, when introduced in a photographic gelatin layer.
    Type: Grant
    Filed: July 2, 1986
    Date of Patent: August 7, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Angelo Vallarino
  • Patent number: 4946770
    Abstract: A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer containing a dispersion, said dispersion comprising oleophilic fine particles containing (a) at least one oil-soluble cyan coupler represented by formula (I) (described herein) capable of forming substantially non-diffusible cyan dye upon coupling with an oxidation product of an aromatic primary amine developing agent, and (b) a water-insoluble, organic solvent-soluble homopolymer or copolymer comprising not more than about 20% by weight of a repeating unit having an acid radical in the main chain or a side chain thereof, wherein the dispersion does not contain high-boiling point organic solvents. The photographic material provides color images excellent in preservability, particularly resistance to dark discoloration and light discoloration in good balance.
    Type: Grant
    Filed: August 13, 1987
    Date of Patent: August 7, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Osamu Takahashi, Tsumoru Hirano, Seiki Sakanoue
  • Patent number: 4939077
    Abstract: Photographic silver halide recording material comprising a support, at least one light-sensitive silver halide emulsion layer, a protective layer and optionally other layers, at least one layer which is arranged closer to the support than the protective layer containing a compound which in the form of the free acid corresponds to the following formula ##STR1## wherein R.sub.1 denotes alkylene, arylene, aralkylene or cycloalkylene,L denotes the residue of a polyester diol having an average molecular weight of from 500 to 20,000,m denotes 0 to 1,n denotes 0 to 30, preferably 0 to 10 and m+n.gtoreq.1,is distinguished by improved properties, in particular an improved maximum density.
    Type: Grant
    Filed: August 25, 1989
    Date of Patent: July 3, 1990
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Gunter Helling, Wolfgang Himmelmann
  • Patent number: 4935338
    Abstract: A silver halide photographic material is disclosed, which has at least one silver halide emulsion layer on a support, said silver halide emulsion layer containing a latex which has been stabilized by a protective colloid which is at least one substance selected from among natural water-soluble polymers, derivatives thereof, and synthetic hydrophilic polymers having at least one nonionic group and at least one anionic group in the molecular structure.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: June 19, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Kosaku Masuda, Eiichi Ueda, Noriki Tachibana
  • Patent number: 4917993
    Abstract: A silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and at least one other hydrophilic colloid layer, wherein at least one compound represented by formula (I) is contained in at least one layer of the silver halide photographic material and wherein an organic material selected from the group consisting of a natural or synthetic water-soluble polymer is contained in at least one of the light-sensitive silver halide emulsion layer and the other hydrophilic colloid layer such that at least 10% by weight of the organic material originally present in the layers of the silver halide photographic material is washed out from the layer during development processing:A--X--Y--B (I)wherein A represents an alkyl group, an alkenyl group or an aryl group, which has from 8 to 25 carbon atoms; X represents ##STR1## wherein R represents an alkyl group having from 1 to 10 carbon atoms or --Y--B; Y represents a group consisting of at least one of eac
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: April 17, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuo Mukunoki, Masakazu Yoneyama, Sumito Yamada
  • Patent number: 4916047
    Abstract: A silver halide light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, and containing a compound containing a repeating unit, said compound containing a repeating unit being connected at the repeating unit to a compound represented by formula (I) at the position of the PWR or Time moiety:PWR--Time.sub.t PUG (I)wherein PWR represents a moiety capable of releasing (Time.sub.t PUG upon reduction, and PUG represents a group which can fulfil a photographically useful function after the release; Time represents a moiety capable of releasing PUG through a reaction subsequent to the release from PWR in the form of --Time.sub.t PUG; and t represents 0 or 1.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: April 10, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keizo Koya, Junichi Yamanouchi, Masaharu Toriuchi, Yoshisada Nakamura
  • Patent number: 4916050
    Abstract: A silver halide light-sensitive photographic material comprising on a support photographic component layers containing a compound of Formula [I] and/or Formula [II]:R.sub.1 OOC--R.sub.2 --COO--R.sub.3 --OOC--R.sub.2 --COO).sub.n R.sub.4 [I],R.sub.5 O--R.sub.6 --OOC--R.sub.7 --COO--R.sub.6).sub.n OR.sub.8 [II]wherein R.sub.1 and R.sub.4 are independently selected from the group consisting of an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group and a heterocyclic group; R.sub.2, R.sub.3, R.sub.6 and R.sub.7 are divalent groups independently selected from the group consisting of an alkylene group, an alkenylene group, a cycloalkylene group and a group of any combination of these groups; R.sub.5 and R.sub.6 each is either an acyl group or a phosphonyl group; and n is an integer of from 1 to 20; is disclosed.
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: April 10, 1990
    Assignee: Konica Corporation
    Inventors: Toyoki Nishijima, Kaoru Onodera
  • Patent number: 4914012
    Abstract: A silver halide photographic light-sensitive material having excellent scratch resistance is disclosed. The photographic light-sensitive material comprises a support having thereon at least two hydrophilic colloid layers, wherein at least one of the layers is a photosensitive silver halide emulsion layer, and at least one of the layers contains composite latex comprising polymeric acrylic acid ester and/or polymeric methacrylic acid ester, and colloidal silica.
    Type: Grant
    Filed: December 28, 1988
    Date of Patent: April 3, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Masayoshi Kawai
  • Patent number: 4898808
    Abstract: An antistatic silver halide photographic light-sensitive material having a support, provided thereon, at least one light-sensitive layer and at least one non-light-sensitive layer is disclosed. Said at least one non-light-sensitive layer comprises a polymer compound consisting essentially of a repeated structural unit represented by Formula [I], and a formamide compound represented by Formula [II]; ##STR1## wherein Z, and Z.sub.2 represent the group of the atoms necessary to form a six-membered ring with--N.sup..sym. --; R represents a divalent group; R.sub.1 and R.sub.2 represent independently one selected from the group consisting of an alkyl group and an aryl group; R.sub.3 represents a hydrocarbon group; R.sub.5 and R.sub.6 represent independently a hydrogen atom or an alkyl group; X.sub.1.sup..crclbar. and X.sub.2.sup..crclbar. represent an anion; a and l represent an integer of 0 and 1.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: February 6, 1990
    Assignee: Konica Corporation
    Inventors: Noriki Tachibana, Masato Nishizeki, Nobuaki Kagawa
  • Patent number: 4891306
    Abstract: A static-inhibited photographic light-sensitive material is provided by incorporating a fluorine-containing block polymer derived from a polymerizable hydrophobic monomer containing at least one fluorine atom and a polymerizable hydrophilic monomer, as an antistatic agent in at least one layer thereof. Unlike known antistatic agents and methods, the use of the above antistatic agent does not adversely affect the photographic characteristics, antitack property, marring resistance, etc., of the photographic light-sensitive material.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: January 2, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shigeki Yokoyama, Yukio Maekawa
  • Patent number: 4891304
    Abstract: A silver halide photographic material comprising a support having provided thereon at least one silver halide emulsion layer containing a compound represented by formula (I): ##STR1## wherein EAG represents an aromatic group bonding to N.sub.A and capable of accepting an electron;N.sub.A and N.sub.B each represents a nitrogen atom;R.sup.1 represents a lone pair, a .pi.-bond, a .sigma.-bond, or a substituent other than a hyudrogen atom;n represents 2 or 3;m represents 0 when n represents 2, or m represents 1 and N.sub.B has a positive charge when n represents 3;X.sup..crclbar. represents an anion;the groups or bonds represented by R.sup.1 may be combined with each other or may be combined with EAG to form a ring;R.sup.2 represents R.sup.3 --CO--, R.sup.3 --SO.sub.2 --, R.sup.3 --CO--N.dbd.CH--, or R.sup.3 --SO.sub.2 --N.dbd.CH--, wherein R.sup.3 represents an alkyl group, an aryl group, or a heterocyclic group;the group represented by R.sup.2 may be combined with at least one of R.sup.
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: January 2, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Koki Nakamura
  • Patent number: 4891307
    Abstract: A silver halide photographic material is disclosed. The material is comprised of a support having thereon at least one silver halide emulsion layer, wherein at least one of the silver halide emulsion layer and another constituent layer contains a fluorine-containing nonionic surface active agent, a fluorine-containing ionic surface active agent and a fluorine-free nonionic surface active agent.
    Type: Grant
    Filed: June 13, 1989
    Date of Patent: January 2, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuo Mukunoki, Yukio Maekawa, Shuzo Suga
  • Patent number: 4877724
    Abstract: A method for hardening gelatin comprising combining the gelatin to be hardened with a compound of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, and X.sup..THETA. are as herein defined. The compounds of this formula effectively harden gelatin with little or no after-hardening. These compounds are useful in hardening gelatin in photographic elements.
    Type: Grant
    Filed: August 31, 1988
    Date of Patent: October 31, 1989
    Assignee: Eastman Kodak Company
    Inventors: Chung Y. Chen, Edgar E. Riecke, Kenneth G. Harbison, Derek D. Chapman
  • Patent number: 4859576
    Abstract: A silver halide photographic material having a high covering power with improved pressure resistance and antistatic properties upon development, which comprises at least one silver halide photographic emulsion layer disposed on at least one side of a support, wherein at least one of the silver halide photographic emulsion layer(s) contains a photosensitive silver halide emulsion containing silver iodide and an internally fogged silver halide emulsion, and at least one of the silver halide photographic emulsion layer(s) and an auxiliary layer(s) which is disposed on the same side of the support as that of the support having said emulsion containing silver iodide contains at least one polyoxyethylenic surface active agent selected from the group consisting of compounds represented by formula (I) and (II) ##STR1## wherein R.sub.1, R.sub.2, R.sub.6, R.sub.8, R.sub.10, and R.sub.
    Type: Grant
    Filed: March 29, 1988
    Date of Patent: August 22, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuaki Miyasaka, Shigeki Yokoyama, Shuzo Suga, Takashi Naoi, Masaki Satake
  • Patent number: 4847186
    Abstract: A silver halide photographic light-sensitive material comprising a support and at least one silver halide emulsion layer, wherein at least one of said emulsion layers or another layers which constitutes said material contains a surface active agent represented by the following general formula: ##STR1## wherein Rf represents a saturated or unsaturated hydrocarbon group having 3 to 24 carbon atoms wherein all or a part of hydrogen atoms is substituted by a fluorine atom, R.sub.1 represents a substituted or unsubstituted saturated or unsaturated hydrocarbon group having 4 to 24 carbon atoms, A represents a trivalent bonding group, B represents a divalent group having an ether bond, D represents a hydrophilic group, and n represents an integer of 2 to 100.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: July 11, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuo Mukunoki, Yukio Maekawa
  • Patent number: 4816290
    Abstract: A process of forming a solid granular film is disclosed, which comprises dispersing solid granules into a liquid with the aid of a dispersant, removing the dispersant from the resulting dispersion to suspend the solid granules at the vapor-liquid interface, and transferring the solid granules onto a support, whereby high covering power is attained with respect to solid granules.
    Type: Grant
    Filed: April 9, 1987
    Date of Patent: March 28, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tatsuo Heki, Noriyuki Inoue
  • Patent number: 4797349
    Abstract: A method for forming a color image which comprises imagewise exposing a color photographic material comprising a reflective support having thereon at least one photosensitive layer containing a color coupler capable of forming a dye image through its coupling reaction with an oxidation product of an aromatic primary amine color developing agent and a silver halide emulsion and processing it with a color developing solution containing substantially no benzyl alcohol, wherein the color development is carried out under the condition that a substantially colorless anionic surface active agent having an unsubstituted aliphatic group, a substituted aliphatic group excluding a fluorine-substituted aliphatic group, or an unsubstituted or substituted aromatic group as a hydrophobic group; and --SO.sub.3 M, --SO.sub.2 M, --OSO.sub.3 M, or --OSO.sub.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: January 10, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Osamu Takahashi, Tadashi Ogawa, Minoru Sakai, Masaharu Toriuchi
  • Patent number: 4783396
    Abstract: The present invention provides silver halide photographic materials containing a havel compound, which when reduced, releases a photographically useful group as triggered off by the cleavage of the nitrogen-oxygen single bond in the compound and which is represented by the following general formula (I): ##STR1## wherein EAG represents a group which accepts an electron from a reducing substance; N and O each represents nitrogen atom and an oxygen atom, respectively; R.sup.1 and R.sup.2 each represents a substituent other than a hydrogen atom, and when R.sup.1 or R.sup.2 is bonded to --(Time).sub.t PUG, R.sup.1 or R.sup.2 is a mere bond or a substituent other than a hydrogen atom, and R.sup.1 and R.sup.
    Type: Grant
    Filed: October 30, 1986
    Date of Patent: November 8, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Koki Nakamura, Sahigeru Nakamura
  • Patent number: 4746594
    Abstract: A silver halide photographic material for a photomechanical process is disclosed. The material comprises a support having provided thereon at least one light-sensitive silver halide emulsion layer and at least one light-insensitive upper layer disposed on the upper side of the emulsion layer. The light-sensitive upper layer has a greater melting time than the light-sensitive emulsion layer. The emulsion layer contains starch, modified starch and/or macromolecular polysaccharides produced from starch using a microbial fermentation process. The material has greatly improved reduction processability.
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: May 24, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuo Kasama, Inoue Nobuaki, Ken-ichi Kuwabara
  • Patent number: 4714671
    Abstract: Polymer latices in which the dispersed particles consist of a soft core and a hard shell are suitable plasticizers for gelatine in photographic recording materials.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: December 22, 1987
    Assignee: Agfa Gevaert Aktiengesellschaft
    Inventors: Gunter Helling, Wolfgang Himmelmann
  • Patent number: 4710456
    Abstract: A silver halide photographic material comprising a support and at least two silver halide emulsion layers on one or both sides of the support, wherein at least one of silver halide emulsion layers contains a polymer having a repeating unit represented by the general formula (I) and/or dextran: ##STR1## wherein R.sup.1 is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; R.sup.2 and R.sup.3, which may be the same or different, and are each a hydrogen atom, or a group having 10 or less carbon atoms and selected from the group consisting of a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted aralkyl group, and R.sup.2 and R.sup.3 may combine together with the nitrogen atom to which they are attached to form a nitrogen-containing heterocyclic ring; L is an (m+1)-valent connecting group; n is 0 or 1; and m is 1 or 2.
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: December 1, 1987
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takashi Naoi, Takashi Fujioka, Hisashi Okamura, Masaki Satake
  • Patent number: 4684608
    Abstract: A latex composition having utility in articles such as photographic elements is disclosed. The composition comprises loadable polymer particles having recurring units a, b and c wherein:component a is 10 to 100 weight percent of a tetrahydrofurfuryl monomer having the structure: ##STR1## in which R.sub.1 represents O or NH; andR.sub.2 represents H or lower alkyl of about 1 to 6 carbon atoms;component b is 0 to 20 weight percent of a hydrophilic monomer andcomponent c is 0 to 90 weight percent of a hydrophobic monomer.
    Type: Grant
    Filed: November 21, 1985
    Date of Patent: August 4, 1987
    Assignee: Eastman Kodak Company
    Inventors: James W. Brown, Tsang J. Chen, Michael A. Schen
  • Patent number: 4677050
    Abstract: A silver halide photographic material is described, comprising a support having thereon at least one layer containing a cross-linked polymer represented by formula (I) ##STR1## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R.sub.3 represents a hydrogen atom, an unsubstituted or substituted alkyl group, cycloalkyl group, aryl group, or acyl group; R.sub.4 represents a hydrogen atom or an unsubstituted or substituted alkyl group; or R.sub.3 and R.sub.
    Type: Grant
    Filed: September 4, 1986
    Date of Patent: June 30, 1987
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shigeki Yokoyama, Takayuki Inayama, Naohiko Sugimoto, Takashi Naoi
  • Patent number: 4670376
    Abstract: Photographic elements comprising at least one protective hydrophilic colloid layer comprising at least one urethane of polyethylene oxide compounds as antistatic agent in the form of dispersed droplets having an average diameter ranging from 1500 to 12000 nm and method of covering such photographic elements with at least one such protective hydrophilic colloid layer obtained by the steps of dissolving such urethane in a water-immiscible solvent medium, emulsifying the resulting solution in aqueous hydrophilic colloid, removing said water-immiscible solvent medium by evaporation to form the dispersed droplets in the aqueous hydrophilic colloid, and coating the latter as such or after having been mixed with additional hydrophilic colloid to form the protective hydrophilic colloid layer.
    Type: Grant
    Filed: October 22, 1985
    Date of Patent: June 2, 1987
    Assignee: Agfa-Gavaert, N.V.
    Inventors: Hubert Vandenabeele, Jacques L. Vervecken
  • Patent number: 4649102
    Abstract: A silver halide photographic light-sensitive material is described, comprising a support having provided thereon at least one silver halide emulsion layer, wherein there is at least one hydrophilic colloidal layer containing at least one nonionic surface active agent and at least one anionic surface active agent having a polyoxyethylene group therein.
    Type: Grant
    Filed: January 10, 1986
    Date of Patent: March 10, 1987
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuo Mukunoki, Shigeki Yokoyama, Hiroshi Kawasaki, Ryoichi Nemori, Tetsuo Takeuchi