Antistatic Agent Containing Patents (Class 430/527)
  • Patent number: 5869217
    Abstract: A silver halide photographic material which has a layer containing a swellable inorganic stratifying compound.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: February 9, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Toshiaki Aono
  • Patent number: 5869227
    Abstract: The present invention is an imaging element which includes a support, an image forming layer superposed on the support, and an electrically conducting layer. The electrically conducting includes smectite clay at a weight percent of from 5 to 95% and an interpolymer of vinylidene halide at a weight percent of from 95 to 5%.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: February 9, 1999
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Dwight W. Schwark, Charles C. Anderson
  • Patent number: 5866312
    Abstract: The present invention is a photographic element which includes a support, at least one silver halide emulsion layer, and a light-insensitive protective overcoat. The light insensitive protective overcoat includes a hydrophilic binder and polymer particles having a glass transition temperature of at least 70.degree. C. The polymer particles prepared by the process of mechanically forming oil-in-water droplets having a size less than 400 nm of an ethylenically unsaturated monomer having hydrophobic groups, the hydrophobic groups having a logP.sub.(calc) greater than a logP.sub.(calc) of the ethylenically unsaturated monomer by at least 1 unit in an aqueous medium. A hydrophilic colloid is added to the aqueous medium in an amount sufficient to render the polymer partice compatible with the hydrophilic binder. The droplets are polymerized to a size of less than 400 nm.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: February 2, 1999
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Dennis E. Smith, Alfred B. Fant
  • Patent number: 5866287
    Abstract: The present invention is a multilayer imaging element which includes a support, at least one image-forming layer, and a transparent electrically-conductive layer. The transparent electrically-conductive layer includes electronically-conductive metal antimonate colloidal particles having a particle size of from 0.005 to 0.05 .mu.m and non-conductive metal-containing colloidal particles having a particle size of from 0.002 to 0.05 .mu.m dispersed in a film-forming binder.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: February 2, 1999
    Assignee: Eastman Kodak Company
    Inventors: Paul A. Christian, Sharon M. Melpolder, Dennis J. Eichorst
  • Patent number: 5866285
    Abstract: The present invention is an imaging element including a support, at least one image-forming layer and an auxiliary layer. The auxilary layer is formed by providing a coating composition of a fluoroolefin-vinyl ether copolymer dissolved in an organic medium, coating the coating composition on the support and drying the coating composition. The present invention also includes a coating composition for use in an imaging element including a fluoroolefin-vinyl ether copolymer dissolved in an organic medium.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: February 2, 1999
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Yongcai Wang
  • Patent number: 5858634
    Abstract: The present invention is a photographic element which includes a support, at least one silver halide emulsion layer; and at least one layer containing a binder and polymer particles. The polymeric particles are prepared by the process of mechanically forming droplets having a size less than 400 nm of an ethylenically unsaturated monomer having hydrophobic groups, the hydrophobic groups having a logP.sub.(calc) greater than a logP.sub.(calc) of the ethylenically unsaturated monomer by at least 1 unit, and polymerizing said droplets so that the polymerized droplets have a size of less than 400 nm. The present invention also is a photographic element which includes a support, at least one silver halide emulsion layer; and at least one layer containing a binder and polymer particles. The polymeric particles are prepared by the process of mechanically forming droplets having a size less than 400 nm of an ethylenically unsaturated monomer having a logP.sub.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: January 12, 1999
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Dennis E. Smith, Alfred B. Fant, John L. Muehlbauer
  • Patent number: 5856078
    Abstract: The present invention is a silver halide photographic element which includes a support, at least one light sensitive silver halide emulsion layer, and an antihalation undercoat layer interposed between the at least one light sensitive silver halide layer and the support. The antihalation undercoat layer includes a hydrophilic binder and an ultraviolet ray absorbing polymer particle having a mean size of greater than 0.01 .mu.m. The ultraviolet ray absorbing polymer particle includes an ultraviolet ray absorber and a polymer derived from monomer A and less than 10 weight % of monomer B, wherein monomer A represents ethylenically unsaturated monomers which form substantially water insoluble homopolymers, and monomer B represents ethylenically unsaturated monomers capable of forming water soluble homopolymers.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: January 5, 1999
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Alfred B. Fant, Gary W. Visconte
  • Patent number: 5853819
    Abstract: Imaging elements, such as photographic, electrostatographic and thermal imaging elements, are comprised of a support, an image-forming layer and an electrically-conductive layer produced by coating a layer comprised of a metallo-organic compound and a film-forming binder and subjecting such layer to glow discharge treatment to render it electrically conductive. Use of a metallo-organic compound in combination with a glow discharge treatment provides a controlled degree of electrical conductivity and beneficial chemical, physical and optical properties which adapt the electrically-conductive layer for such purposes as providing protection against static or serving as an electrode which takes part in an image-forming process.
    Type: Grant
    Filed: October 24, 1996
    Date of Patent: December 29, 1998
    Assignee: Eastman Kodak Company
    Inventors: Mark Lelental, Bradley Keith Coltrain, David Appler Glocker, Dennis R. Freeman, Jeremy Matthew Grace
  • Patent number: 5851746
    Abstract: A photographic element comprises an ultraviolet ray absorbing polyester support bearing a light-sensitive silver halide photographic emulsion layer, the support having adjacent thereto one or more contiguous non imaging layers between the support and the closest silver halide photographic emulsion layer said one or more contiguous layers containing a combined gelatin laydown of 2.3 g/m.sup.2 or less.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: December 22, 1998
    Assignee: Eastman Kodak Company
    Inventors: John Brian Rieger, Drake Matthew Michno
  • Patent number: 5849472
    Abstract: The present invention is an imaging element which includes a support, an image forming layer, and an electrically-conductive layer. The electrically conductive layer includes electronically-conductive fine particles from about 5 to 50 volume percent of said electrically-conductive layer, film-forming hydrophilic colloid, and carboxylic acid-containing polymer particles having an acid number of at least 90.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: December 15, 1998
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Charles C. Anderson
  • Patent number: 5849471
    Abstract: A silver halide light-sensitive photographic containing a hydrophilic colloid layer containg dextran or a compound of the following formula and subbing layer containing metal oxide is disclosed. ##STR1## R.sub.1 and R.sub.2 each independently represent a hydroxy group, --OM group, an amino group, an acylamino group, an alkylsulfonylamino group, an arylsulfonylamino group, an alkoxycarbonylamino group, a mercapto group or an alkylthio group, and M represents an alkali metal atom or an ammonium group and X represents two vinyl carbons substituted by R.sub.1 and R.sub.2 and an atom group necessary for forming a 5-6 ring together with carbonyl carbon.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: December 15, 1998
    Assignee: Konica Corporation
    Inventor: Yoshihiro Haga
  • Patent number: 5846700
    Abstract: The present invention is a photographic element including a support, at least one silver halide image-forming layer; and a hydrophilic protective layer. The hydrophilic protective layer includes a hydrophilic colloid, and a fluoroolefin-vinyl ether copolymer having a glass transition temperature greater than 25.degree. C. and a hydroxyl number greater than 5.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: December 8, 1998
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Charles C. Anderson, James L. Bello
  • Patent number: 5846699
    Abstract: The present invention describes an imaging element having a support, and at least one layer formed from an aqueous coating composition containing a film forming binder. The film forming binder is a mixture of a polyurethane and a carboxylic acid containing polymer or copolymer having a glass transition temperature of at least 40.degree. C. and an acid number of 60 to 260. The carboxylic acid containing polymer or copolymer is reacted with ammonia or amine so that the coating composition has a pH of from 7 to 10.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: December 8, 1998
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Charles Chester Anderson
  • Patent number: 5827630
    Abstract: The present invention is a multilayer imaging element which includes a support, at least one image-forming layer, a transparent magnetic layer and a transparent electrically-conductive layer. The transparent magnetic layer includes magnetic particles dispersed in a film forming binder. The transparent electrically-conductive layer includes electronically-conductive metal antimonate colloidal particles having a particle size of from 0.005 to 0.05 .mu.m and non- conductive metal-containing colloidal particles having a particle size of from 0.002 to 0.05 .mu.m dispersed in a film-forming binder.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: October 27, 1998
    Assignee: Eastman Kodak Company
    Inventors: Dennis J. Eichorst, Paul A. Christian, Sharon M. Melpolder
  • Patent number: 5811228
    Abstract: The invention provides a multilayer color negative photographic element comprising a support, at least one light-sensitive silver halide emulsion layer sensitive to each of the blue, green and red regions of the visible spectrum, a magnetic recording layer, and a permanent density correction dye, wherein:the spectral absorbance maximum of the density correction dye is in the range of 450-485 nm;the ratio of the absorbance of the density correction dye at 480 nm relative to 420 nm is between 1.2 and 3.5;the ratio of the absorbance of the density correction dye at 440 nm relative to 420 nm is between 1.25 and 2.5;the ratio of the absorbance of the density correction dye at 510 nm relative to 480 nm is less than 0.6; andthe density correction dye is uncharged and is free of carboxyl and sulfonate groups.The element exhibits improved color balance permitting it to be satisfactorily processed together with conventional photographic elements to produce viewable color images.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: September 22, 1998
    Assignee: Eastman Kodak Company
    Inventors: Paul Barrett Merkel, Melvin Michael Kestner, David Hoke
  • Patent number: 5804360
    Abstract: The present invention is an imaging element including a support, an image-forming layer and at one least layer having been formed by the coating and subsequent drying of a coating composition. The coating composition is an aqueous medium having therein a polyurethane/vinyl polymer dispersion formed by free radical polymerization of a vinyl monomer in the presence of an aqueous polyurethane dispersion.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: September 8, 1998
    Assignee: Eastman Kodak Company
    Inventors: Brian A. Schell, Charles C. Anderson, Kenneth L. Tingler, Yongcai Wang
  • Patent number: 5800973
    Abstract: The present invention is an imaging element which includes a support, an image forming layer and a backing layer. The backing layer includes a film forming polymeric binder, hard filler particles in an amount of from 10 to 80 volume percent of the backing layer, and crosslinked elastomeric matte beads having a glass transition temperature of 10.degree. C. or less.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: September 1, 1998
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Andy H. Tsou, Paul E. Woodgate
  • Patent number: 5789145
    Abstract: The present invention is a method for treating a polyester support such as polyethylene naphthalate or polyethylene terephthalate. The treatment is carried out at atmospheric pressure in a gas of helium and optionally nitrogen and/or oxygen. The treatment uses metallic electrodes and an atmospheric glow discharge results when the electrodes are connected to a generator and spaced about 1 to 2 mm apart. The process and apparatus improve adhesion of subsequently coated emulsions on the polyester support at high speeds and relatively low power by selecting a frequency of 40 kHz to 500 kHz.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: August 4, 1998
    Assignee: Eastman Kodak Company
    Inventors: David A. Glocker, Mark M. Romach, Richard C. Soper
  • Patent number: 5786134
    Abstract: This invention relates to a motion picture print film having a support and 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, a protective overcoat; characterized in that said protective overcoat includes a polyurethane binder and the polyurethane binder has a tensile elongation to break of at least 50% and a Young's modulus measured at a 2% elongation of at least 50000 lb/in, and a topcoat farthest from the support which includes a hydrophilic binder at a weight percent of at least 20.
    Type: Grant
    Filed: May 15, 1997
    Date of Patent: July 28, 1998
    Assignee: Eastman Kodak Company
    Inventors: Mridula Nair, Kenneth L. Tingler, Gustav R. Apai, II, Frank A. Pettrone
  • Patent number: 5786133
    Abstract: A photographic element is disclosed comprising a support bearing at least one photosensitive layer and an antistatic layer comprising a binder, vanadium pentoxide, and an aromatic ketone ultraviolet absorbing compound. The antistatic layer provides the properties of UV absorbance and antistatic protection, which properties are retained after photographic processing. Specifically, in accordance with preferred embodiments, a layer providing a surface and volume resistivity of less than about 10.sup.8 ohm/cm coupled with an optical density of greater than about 1.0 from 300-400 nm and less than about 0.03 as measured in orthochromatic light is provided. The layer composition components are soluble in common coating solvents, compatible with each other, and do not produce any adverse sensitometric effects either in the raw state, during or after processing of the film itself.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: July 28, 1998
    Assignee: Eastman Kodak Company
    Inventor: Thomas M. Smith
  • Patent number: 5776659
    Abstract: A composition for irradiation with an ionizing radiation, characterized by comprising: (a) 0.01 to 30 parts by weight of a soluble aniline polymer which comprises one or both of the repeating units represented by the following general formulae (1) and (2), said repeating units being included at least 80% of the total repeating units, possesses a weight average molecular weight of not less than 10,000, and is solid at room temperature; and (b) 100 parts by weight of a solvent, ##STR1## wherein R.sup.1 to R.sup.4 represent an electron-donating group, Y.sup.1 to Y.sup.4 represent --SO.sub.3 -- or --COO--, and M.sup.1 to M.sup.4 represent a hydrogen ion, an ammonium ion, an a1kyl ammonium ion with 1 to 8 carbon atoms, an aromatic ammonium ion, or a quaternary ion of an aromatic heterocyclic ring.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: July 7, 1998
    Assignees: Fujitsu Limited, Nitto Chemical Industry Co., Ltd.
    Inventors: Keiji Watanabe, Ei Yano, Takahisa Namiki, Keiko Yano, Takashi Maruyama, Tomio Nakamura, Shigeru Shimizu, Takashi Saitoh, Masashi Uzawa, Masami Ishikawa
  • Patent number: 5773204
    Abstract: The invention concerns a process for coating a photographic support.The process consists of depositing on a support a succession of at least two layers, at least one of which consists of a photosensitive composition, the top layer, situated at the opposite side to the support, containing a given concentration of at least one surfactant, the process being characterized in that a surfactant present in the top layer is introduced into the layer adjacent to the top layer at a concentration equal to at least 25% of the concentration of the same surfactant in the said top layer.
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: June 30, 1998
    Assignee: Eastman Kodak Company
    Inventor: Jean Marie Baumlin
  • Patent number: 5766836
    Abstract: The present invention discloses a three layer backing system for a photographic element. The backing system in on the opposite side of the light-sensitive layer. The backing system includes a first antistatic layer having an antistatic agent. The backing system includes a barrier layer of a polymer. The overcoat layer, farthest from the support, includes cellulose acetate and cellulose nitrate in a ratio range of from 3:1 to 1:1 and from 5 to 40 percent perfluorinatied polymer particles.
    Type: Grant
    Filed: January 28, 1997
    Date of Patent: June 16, 1998
    Assignee: Eastman Kodak Company
    Inventors: Raymond T. Jones, David M. Teegarden, John M. Fukushima, Ronald M. Stimson
  • Patent number: 5766835
    Abstract: There is disclosed a silver halide photographic light-sensitive material that comprises at least one backing layer on a support, wherein at least one of the backing layers contains a crosslinking agent of the general formula (1) in the range of from 3 to 1000 mg/m.sup.2, and at least one of the backing layers is a transparent magnetic recording layer containing abrasives that have Moh's hardness values of not less than 5.General formula (1) ##STR1## wherein n is an integer of n.gtoreq.0; m is an integer of 1 or 2; and R.sub.1, R.sub.2, and R.sub.3 each represent a hydrogen atom, an alkyl group, or an aryl group. In the light-sensitive material, the problem of emulsion peeling on the side of the back surface is hardly to arise, and in addition, an error in magnetic recording/reproducing caused after development processing is also hardly to cause.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: June 16, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Naohiro Matsunaga
  • Patent number: 5759756
    Abstract: The present invention is a photographic support including a core layer of a transparent non-crystalline polymer having a glass transition temperature Tg. The core layer has a first surface and a second surface. A first outer layer of a transparent crystalline polymer having a first stretch temperature Ts.sub.1 greater than the Tg is superposed on the first surface of said core layer. A second outer layer of a transparent crystalline polymer having a second stretch temperature Ts.sub.2 greater than the Tg is superposed on the second surface of said core layer.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: June 2, 1998
    Assignee: Eastman Kodak Company
    Inventors: Thomas M. Laney, Jehuda Greener, Wen-Li A. Chen
  • Patent number: 5756272
    Abstract: The present invention is a photographic element which includes a support, and at least one light-sensitive silver halide layer on a front side of the support. The photographic element has on the backside of the support an antistatic layer; a transparent magnetic recording layer; and a lubricating overcoat layer. The lubricating overcoat layer is farthest from the support and includes a lubricant of the general formula:R--CONH.sub.2where R is a long chain hydrocarbon between 12 and 30 carbons, preferably between 16 and 22.The present invention also provides a method of producing an imaging support which includes, providing a support, and simultaneously coating on the support; a transparent magnetic recording layer including magnetic particles, a polymeric binder and an organic solvent, and a lubricating overcoat layer, the lubricating overcoat layer comprising a lubricant of the general formula:R--CONH.sub.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: May 26, 1998
    Assignee: Eastman Kodak Company
    Inventors: Christine J. Landry-Coltrain, Bradley K. Coltrain, Michael J. Corrigan
  • Patent number: 5747232
    Abstract: In accordance with this invention, a photographic film especially suited for motion imaging film applications such as motion picture film or television film has on one side of a support material, in order, a process surviving, electrically conductive subbing layer, a photographic emulsion, and a protective overcoat; and on the opposite side a carbon black-containing backing layer, and optionally, a lubricant that overlies the backing layer. The carbon black-containing layer provides antihalation and antistatic protection for the unprocessed film. The conductive subbing layer retains its antistatic properties after processing so that the motion imaging film is protected from the generation of static charge after the carbon black-containing layer is removed during processing. The conductive subbing layer has a resistivity of less than 5.times.10.sup.9 .OMEGA./.quadrature. after film processing.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: May 5, 1998
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Mario D. DeLaura
  • Patent number: 5744292
    Abstract: There is disclosed a silver halide photographic light-sensitive material that comprises, in at least one photographic layer constituting the material, a dispersion containing fine grains of a solid dye represented by the following general formula (II), wherein the solid dye has been subjected to heat treatment at 40.degree. C. or higher, and wherein the dispersion further contains a specific water-soluble or water-dispersible polymer-compound that has a hydrophobic group bonding at a terminal of a copolymer of vinyl alcohol and vinyl ester: ##STR1## wherein D represents a residue of a compound having a chromophoric group; X represents a dissociating hydrogen atom, or a group having a dissociating hydrogen atom, which atom or group connects to the D directly or via a divalent connecting group; and y is an integer of 1 to 7. The photographic light-sensitive material prevents any change of viscosity with the lapse of time due to the dye in a state of dispersion solution containing fine grains of the dye.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: April 28, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hiroyuki Yoneyama
  • Patent number: 5744295
    Abstract: An antistatic composition comprises a hydrophilic colloid, e.g. gelatin, and a plurality of surface active agents comprising an anionic surface active agent and a cationic surface active agent. At least one of the anionic and cationic surface active agents comprises at least one polyoxyalkylene group. The accumulation of electrostatic charge on an element, e.g a photographic element, may be prevented by coating a surface of the element with an aqueous dispersion of the antistatic composition and drying the coated surface.
    Type: Grant
    Filed: August 30, 1994
    Date of Patent: April 28, 1998
    Assignee: Eastman Kodak Company
    Inventors: Alan Robert Pitt, Julian Claudius Caesar, Colin James Gray
  • Patent number: 5731119
    Abstract: The present invention describes an imaging element which includes a support, an image-forming layer, a transparent magnetic recording layer, and an electrically-conductive layer. The electrically-conductive layer is a dispersion in a film-forming binder of acicular, crystalline single phase, semi-conductive metal-containing particles having a cross-sectional diameter less than 0.02 .mu.m and an aspect ratio of greater than or equal to 5:1.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: March 24, 1998
    Assignee: Eastman Kodak Company
    Inventors: Dennis J. Eichorst, Paul A. Christian, Gerald M. Leszyk
  • Patent number: 5726001
    Abstract: In accordance with one embodiment of the invention a composite support for an imaging element is described, which composite support comprises a polymeric film having coated thereon an electrically conductive layer and an auxiliary layer coated over the electrically conductive layer, wherein the polymeric film comprises a surface which has been activated by energetic treatment, and wherein the composite support further comprises an adhesion promoting layer comprising an aqueous dispersible, aliphatic, anionic polyurethane binder having an ultimate elongation to break of at least 350 percent either between the polymeric film and the electrically conductive layer or between the electrically conductive layer and the auxiliary layer, and the electrically conductive layer or adhesion promoting layer is in contiguous contact with the activated surface of the polymeric film.
    Type: Grant
    Filed: June 12, 1996
    Date of Patent: March 10, 1998
    Assignee: Eastman Kodak Company
    Inventor: Dennis John Eichorst
  • Patent number: 5725999
    Abstract: The invention provides a multilayer color negative photographic element comprising a support, at least one light-sensitive silver halide layer sensitive to each of the blue, green and red regions of the visible spectrum, a magnetic recording layer and a yellow or orange-yellow methine density correction dye of structure I, ##STR1## wherein R.sub.1 is hydrogen or an alkyl group;R.sub.2 is an alkyl group or an aryl group;R.sub.3 is hydrogen, a halogen atom, an alkyl group, an alkoxy group or an aryloxy group;R.sub.4 is hydrogen or an alkyl group;R.sub.5 is hydrogen or an alkyl group;R.sub.6 is hydrogen or an alkyl group;X is oxygen or sulfur;each R.sub.7 is independently a substituent selected from the group consisting of a halogen atom, and alkyl, aryl, alkoxy, aryloxy, carbonamido, sulfonamido, carbamoyl, alkoxycarbonyl, aryloxycarbonyl, acyloxy, acyl, sulfamoyl, sulfonyl, sulfoxyl, alkylthio, arylthio and cyano groups;R.sub.1 and R.sub.2 or R.sub.2 and R.sub.3 may join to form a ring.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: March 10, 1998
    Assignee: Eastman Kodak Company
    Inventors: Paul Barrett Merkel, Melvin Michael Kestner, David Hoke, Jeffrey Walter Schmoeger
  • Patent number: 5723273
    Abstract: The present invention is an imaging element which includes a support and at least one image forming layer. The imaging element further includes an antistatic layer and a protective layer overlying the antistatic layer. The protective layer is formed from an aqueous coating solution containing a film forming binder and a crosslinking agent. The film forming binder is a carboxylic containing vinyl polymer or copolymer having a glass transition temperature of greater than 50.degree. C. and an acid number of from 60 to 260. The carboxylic acid group of the vinyl polymer or copolymer are reacted with ammonia or amine to provide a pH of the coating solution of from 7 to 10.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: March 3, 1998
    Assignee: Eastman Kodak Company
    Inventors: Charles Chester Anderson, Yongcai Wang, James L. Bello, Mario D. DeLaura
  • Patent number: 5723274
    Abstract: The present invention is an imaging element which includes a support and at least one layer formed from, (A) film forming binder, and (B) non-film forming polymeric particles. The film forming binder is formed from a coating solution of carboxylic acid containing vinyl polymer or copolymer having a glass transition temperature of greater than 50.degree. C. and an acid number of 60 to 260, the carboxylic acid containing vinyl polymer or copolymer is reacted with ammonia or amine so that the coating solution has a pH of from 7 to 10.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: March 3, 1998
    Assignee: Eastman Kodak Company
    Inventors: Charles Chester Anderson, Yongcai Wang
  • Patent number: 5723276
    Abstract: The present invention is a polyolefin resin coated paper base having a backing layer. The backing layer is formed by coating and subsequent drying of a coating composition having dispersed therein colloidal inorganic oxide particles, an antistatic agent and a film forming binder. The film forming binder is a carboxylic acid containing vinyl polymer or copolymer having a glass transition temperature greater than 25.degree. C. and an acid number of from 30 to 260 wherein the carboxylic acid containing vinyl polymer or copolymer is reacted with ammonia or amine so that the coating composition has a pH of from 7 to 10.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: March 3, 1998
    Assignee: Eastman Kodak Company
    Inventors: Lori Jeanne Shaw-Klein, Charles Chester Anderson, Yongcai Wang
  • Patent number: 5723270
    Abstract: A photographic element is disclosed which comprises (a) a support, (b) a radiation-sensitive silver halide emulsion layer on one side of the support, and (c) a protective backing on the opposite side of the support which provides scratch and abrasion resistance and process surviving lubricity. The protective backing is comprised of one or more layers, the outermost of which comprises a film-forming hydrophobic lubricious polyimide-siloxane block copolymer. In preferred embodiments of the invention, the backing further comprises a solid particle dye dispersion of a filter dye which is readily soluble or decolorizable in alkali aqueous photographic processing solutions at pH of 8 or above dispersed in an alkaline aqueous insoluble, organic solvent soluble film forming binder, and an electrically conductive agent, such that the backing provides halation protection during exposure as well as process-surviving antistatic protection.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: March 3, 1998
    Assignee: Eastman Kodak Company
    Inventors: Thomas M. Smith, Vito A. DePalma, Scott E. Tunney
  • Patent number: 5723272
    Abstract: Silver halide light sensitive photographic elements comprising a support bearing on one side thereof at least one blue-sensitive silver halide emulsion yellow-image forming layer, at least one red-sensitive silver halide emulsion cyan-image forming layer, at least one green-sensitive silver halide emulsion magenta-image forming layer, and an antihalation layer comprising a cyan filter dye coated between the support and the red-sensitive layer, wherein the green-sensitive layer comprises a four equivalent magenta image forming coupler and the cyan filter dye is of the formula (I): ##STR1## where L.sup.1, L.sup.2, L.sup.3, L.sup.4 and L.sup.5 are methine groups; R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently H or alkyl or aryl groups; and M.sup.+ is H or a counter ion; wherein at least one of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 comprises an aryl group substituted with a substituent having a .pi. value of less than -0.10, where .pi.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: March 3, 1998
    Assignee: Eastman Kodak Company
    Inventors: Gary Norman Barber, Margaret Jones Helber
  • Patent number: 5723271
    Abstract: A photographic element is disclosed which comprises (a) a support, (b) a radiation-sensitive silver halide emulsion layer on one side of the support, and (c) a protective backing on the opposite side of the support which provides scratch and abrasion resistance and process surviving lubricity. The protective backing is comprised of one or more layers, the outermost of which comprises a film-forming hydrophobic lubricious polyester-siloxane block copolymer and a hydrophobic co-binder which does not contain polysiloxane block units. In preferred embodiments of the invention, the backing further comprises a solid particle dye dispersion of a filter dye which is readily soluble or decolorizable in alkali aqueous photographic processing solutions at pH of 8 or above dispersed in an alkaline aqueous insoluble, organic solvent soluble film forming binder, and an electrically conductive agent, such that the backing provides halation protection during exposure as well as process-surviving antistatic protection.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: March 3, 1998
    Assignee: Eastman Kodak Company
    Inventors: Thomas M. Smith, Vito A. DePalma, Scott E. Tunney
  • Patent number: 5719016
    Abstract: The present invention describes imaging elements which include a support, an image-forming layer and an electrically-conductive layer. The electrically conductive layer is a dispersion in a film-forming binder of acicular, crystalline single phase, conductive metal-containing particles having a cross-sectional diameter less than 0.02 .mu.m and an aspect ratio of greater than or equal to 5:1.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: February 17, 1998
    Assignee: Eastman Kodak Company
    Inventors: Paul A. Christian, Dennis J. Eichorst, Gerald M. Leszyk
  • Patent number: 5714309
    Abstract: The invention concerns a film-forming aqueous composition comprising a binder and an inorganic anti-static substance. The binder is in the form of a water-soluble polymer such as gelatin or hydroxyethyl cellulose free from any aluminum-chelating groups, and the anti-static substance is a fibrous inorganic polymer of the formula Al.sub.x Si.sub.y O.sub.z, where x:y is between 1 and 3 and z is between 2 and 6. Such compositions are particularly applicable to obtaining anti-static layers for photographic materials.
    Type: Grant
    Filed: October 23, 1996
    Date of Patent: February 3, 1998
    Assignee: Eastman Kodak Company
    Inventors: Olivier Jean Christain Poncelet, Jeannine Rigola
  • Patent number: 5714308
    Abstract: The present invention is a method for treating a polyester support such as polyethylene naphthalate or polyethylene terephthalate. The treatment is carried out at near atmospheric pressure in a gas of helium and optionally nitrogen and/or oxygen. The treatment uses anodized aluminum electrodes and an atmospheric glow discharge results when the electrodes are connected to an RF generator and spaced about 2 mm apart. The process and apparatus improve adhesion of subsequently coated emulsions on the polyester support at high speeds and relatively low power by selecting a frequency of 40 kHz to 500 kHz.
    Type: Grant
    Filed: February 13, 1996
    Date of Patent: February 3, 1998
    Assignee: Eastman Kodak Company
    Inventors: Mark M. Romach, David Appler Glocker
  • Patent number: 5709984
    Abstract: A coating composition useful for forming an electrically conductive layer on a substrate is disclosed, said composition comprising a liquid medium containing: a) a vanadium oxide gel, b) a film-forming binder, and c) a conductivity-increasing amount of a volatile aromatic compound comprising an aromatic ring substituted with at least one hydroxy group or a hydroxy substituted substituent group. Further embodiments of the invention disclose a composite support for an imaging element, which composite support comprises a polymeric film having coated thereon an electrically conductive layer, wherein the electrically conductive layer has been formed by applying a coating of the coating composition of the invention, and drying the coating.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: January 20, 1998
    Assignee: Eastman Kodak Company
    Inventors: Janglin Chen, Richard A. Castle, Karen E. Gleasman
  • Patent number: 5709971
    Abstract: Dye imbibition printing blanks are disclosed comprising a support bearing on one side thereof a dye-receiving layer comprising a cationic mordant, and further comprising an antistatic layer substantially free of cationic polymers. The antistatic layer is preferably provided on the opposite side of the support relative to the dye-receiving layer. Such antistatic layer provides improved antistatic properties which enable high manufacturing and processing speeds without adversely affecting printed image qualities.
    Type: Grant
    Filed: March 12, 1996
    Date of Patent: January 20, 1998
    Assignee: Eastman Kodak Company
    Inventors: Wayne Arthur Bowman, Charles Peter Hagmaier, Frank Dean Manioci
  • Patent number: 5709985
    Abstract: A photographic element comprising a polymeric film base, a silver halide emulsion layer, and an antistatic layer comprising a colloidal vanadium oxide and a vinyl addition polymer dispersion in a dry weight ratio of from 1:30 to 1:500. The antistatic layer may be present as a backing layer on the side of the base opposite the silver halide emulsion layer, as a subbing layer between the base and the emulsion layer in a single or double side coated photographic element, and/or as a subbing layer between the base and a different backing layer. No barrier layer is used over the antistatic layer.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: January 20, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Eric D. Morrison, Paola Puppo, Alberto Valsecchi, Elio Martino, William L. Kausch, Renzo Torterolo
  • Patent number: 5707791
    Abstract: A silver halide photographic light-sensitive material is disclosed, comprising a polyester support having on one side thereof a silver halide emulsion layer, and on the other side of the support, a layer containing a polyester resin or polyurethane resin and further thereon a magnetic recording layer.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: January 13, 1998
    Assignee: Konica Corporation
    Inventors: Mineko Ito, Koichi Saito, Chieko Uehara
  • Patent number: 5705329
    Abstract: Disclosed is a silver halide photographic light-sensitive material comprising a support provided thereon, a layer selected from the group consisting of a first layer and a second layer, and a silver halide emulsion layer in this order, wherein said support comprises a syndiotactic styrene polymer or a copolymer thereof, and a first layer comprises a polymer composition composed of a polyester component with a styrene polymer component, and a second layer comprises a diene type polymer.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: January 6, 1998
    Assignee: Konica Corporation
    Inventors: Akihisa Nakajima, Koichi Nagayasu
  • Patent number: 5698384
    Abstract: Imaging elements, such as photographic, electrostatographic and thermal imaging elements, are comprised of a support, an image-forming layer and an electrically-conductive layer comprising electronically-conductive fine particles, such as antimony-doped tin oxide particles, and gelatin-coated water-insoluble polymer particles. The use of gelatin-coated water-insoluble polymer particles as a binder in the electrically-conductive layer facilitates the preparation of stable coating compositions and provides a layer with a high degree of conductivity at low concentrations of electronically-conductive fine particles and with excellent abrasion resistant properties.
    Type: Grant
    Filed: December 5, 1995
    Date of Patent: December 16, 1997
    Assignee: Eastman Kodak Company
    Inventors: Charles Chester Anderson, Yongcai Wang, James Lee Bello, Mario Dennis DeLaura
  • Patent number: 5695919
    Abstract: Imaging elements, such as photographic films and papers, are comprised of a support, an image-forming layer and at least one auxiliary layer containing solvent-dispersible polymer particles. The auxiliary layer having been formed from a coating solution comprising a continuous liquid organic medium having dispersed therein lubricant impregnated core/shell polymer particles, the polymer particles comprising a core portion which is insoluble in the organic medium and a shell portion which has an affinity for both the core portion and the organic medium.
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: December 9, 1997
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Charles Chester Anderson, James Lee Bello, Mario Dennis DeLaura
  • Patent number: 5695920
    Abstract: A coating composition that is useful for the preparation of an auxiliary layer of an imaging element, such as a photographic element, is comprised of an aqueous medium having dispersed therein film-forming polymeric particles and non-film-forming polymeric particles and is characterized in that the film-forming polymeric particles are acid-stable polyurethane particles. These coating compositions have excellent stability characteristics, provide auxiliary layers with improved chemical and physical properties when coated and dried to form a coalesced layer, and provide for reduced emission of volatile organic compounds during the drying process.
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: December 9, 1997
    Assignee: Eastman Kodak Company
    Inventors: Charles Chester Anderson, Brian Andrew Schell, Yongcai Wang
  • Patent number: 5683862
    Abstract: Described herein is a photographic paper coated with a polyolefin resin layer on each surface, one of the free surfaces of one of the polyolefin layers bearing a print retaining antistatic layer with improved spliceability and track off characteristics. The antistatic layer includes a polymeric latex binder and a non-ionic surface active compound having poly(ethylene oxide) and an alkali metal salt wherein the non-ionic surface active compound is between 0.1 and 4 percent by dry weight of the antistatic layer.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: November 4, 1997
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Michael W. Orem