Polyester Or Polycarbonate Patents (Class 430/533)
  • Patent number: 5955251
    Abstract: A method for producing an information recording medium is disclosed. The method comprising the steps of (1) applying a surface treatment on a surface of a film support so that the atomic percentage of oxygen at said surface is increased by 1.0 atomic-% to 10 atomic-% compared to the atomic percentage of oxygen at said surface before treatment, (2) providing a subbing layer comprising a water-soluble or water-dispersible polymer having a 2-oxazoline group represented by Formula A on said treated surface of the film support so that the subbing layer is directly adjoined to said surface, and (3) providing an information recording layer on said subbing layer, ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each independently a hydrogen atom, a halogen atom, an alkyl group, an aralkyl group, a phenyl group.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: September 21, 1999
    Assignee: Konica Corporation
    Inventors: Hirokazu Koyama, Makoto Honda, Toshiaki Shibue
  • Patent number: 5952164
    Abstract: The present invention is a photographic element including a support, at least one silver halide emulsion layer superposed on said support; and at least one auxiliary layer. The auxiliary layer includes a gelatin-grafted-polyurethane which is formed by coating and subsequent drying of a coating composition comprising gelatin covalently bound to a polyurethane through a grafting agent, wherein a ratio of gelatin to polyurethane is from 1:10 to 2:1.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: September 14, 1999
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Brian A. Schell, Mario D. DeLaura
  • Patent number: 5935742
    Abstract: A photographic material comprising a cassette containing a processed photographic element, the photographic element comprising a support, at least one light sensitive silver halide layer and a protective overcoat layer on the light sensitive layer, the protective overcoat layer comprising a hydrophilic binder and permanent matte particles, the permanent matte particles comprising greater than 80 mole percent methyl methacrylate and having a mean particle size of from 1 to 1.8 .mu.m and a coating weight of from 70 to 250 mg/m.sup.2.
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: August 10, 1999
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Dennis Edward Smith, Alfred Bruce Fant, Melvin Michael Kestner
  • Patent number: 5935769
    Abstract: A method for processing a silver halide black-and-white photographic light sensitive material comprising a transparent polyester support having thereon hydrophilic colloid layers including a silver halide emulsion layer, by the use of an automatic processor, the method comprising the steps of developing with a developing solution; fixing with a fixing solution, washing and drying, wherein the polyester support is a biaxially stretched polyester film obtained from a naphthalenedicarboxylic acid and a diol; the developing solution and the fixing solution being prepared by dissolving, in water, a solid developing composition and a solid fixing composition, respectively.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: August 10, 1999
    Assignee: Konica Corporation
    Inventor: Kazuya Tsukada
  • Patent number: 5932406
    Abstract: Disclosed is a silver halide photographic material which comprises a monodispersed polymer having an average grain size of from 1 to 10 .mu.m and variation coefficient of 0.10 or less and having a functional group which forms a covalent bond by reacting with an organic hardening agent or gelatin. Preferably, the polymer is a polymer obtained by polymerization by adding to a hydrophilic organic solution a high molecular weight dispersant which is dissolved in the hydrophilic organic solution and further adding at least one vinyl monomer which is dissolved in the hydrophilic organic solution but the polymer to be formed is precipitated from the hydrophilic organic solution. More preferably, the polymer contains 60 wt % or more of the repeating unit derived from methyl methacrylate and has a glass transition point of 60.degree. C. or more.
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: August 3, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yutaka Adegawa, Kentaro Shiratsuchi
  • Patent number: 5925507
    Abstract: A highly useful photographic film base containing a miscible blend of is polyester containing at least 30 weight percent cyclohexylene dimethanol, CHDM/EG-PE, and a polycarbonate containing bisphenols, BP-PC, in specified proportions. Photographic elements prepared with this film base have a lesser tendency to take core-set and post process curl than do elements prepared with polyester containing cyclohexylene dimethanol, CHDM/EG-PE, film base.
    Type: Grant
    Filed: January 14, 1998
    Date of Patent: July 20, 1999
    Assignee: Eastman Kodak Company
    Inventors: Dennis J. Massa, James M. O'Reilly, Wen-Li A. Chen
  • Patent number: 5916727
    Abstract: A sealed self-contained photohardenable imaging assembly comprising in order: a first transparent support; a subbing layer; an imaging layer comprising a developer material and a plurality of photohardenable microcapsules encapsulating a photohardenable composition and a color precursor wherein the imaging layer exhibits a residual stain of less than about 0.3 density units; an adhesive; and a second support which may be opaque or transparent, wherein the subbing layer is interposed between the first support and the imaging layer and the subbing layer includes a polymer having chemical moieties which bond to the microcapsules and the adhesive is interposed between the second support and the imaging layer.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: June 29, 1999
    Assignee: Cycolor, Inc.
    Inventors: Joseph C. Camillus, Mark A. Johnson, John M. Taylor, Darrell A. Terry, William Lippke, S. Thomas Brammer
  • Patent number: 5914220
    Abstract: A polyester support in which a difference between orientation angles in both the side edges and that in the center thereof is from 0.degree. to 40.degree., whereby a photographic film having excellent flatness after heat treatment is provided.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: June 22, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Masahiko Murayama
  • Patent number: 5910401
    Abstract: The present invention is an imaging base which includes a polyester film support and an adhesion promoting layer directly adhered to a surface of the support. The adhesion promoting layer is formed by the coating and subsequent drying of a coating composition comprising a gelatin-grafted-polyurethane. The gelatin-grafted polyurethane is covalently bound to the polyurethane through a grafting agent wherein the ratio of gelatin to polyurethane is from 1:10 to 2:1. In one embodiment of the invention the imaging support is coated with at least one silver halide emulsion layer to form a photographic element.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: June 8, 1999
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Brian A. Schell, Mario D. DeLaura
  • Patent number: 5902720
    Abstract: The invention relates to a photographic element comprising a paper base, at least one photosensitive silver halide layer, a layer of biaxially oriented polymer sheet between said paper base and said silver halide layer, and a biaxially oriented polymer sheet on the opposite side of said base paper from said photosensitive silver halide layer wherein said biaxially oriented sheets and said base paper together have balanced forces such that the photographic element remains flat over a broad range of relative humidity changes.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: May 11, 1999
    Assignee: Eastman Kodak Company
    Inventors: Douglas N. Haydock, Thaddeus S. Gula, Peter T. Aylward, Robert P. Bourdelais
  • Patent number: 5895744
    Abstract: Method and apparatus for making thermoplastic web from polyester or polyester blends for subsequent aqueous coating without requirement of an undercoat or primer coat for adhesion of subsequent coatings. Feedstock pellets of polymer, such as polyethylene terephthalate or polyethylene naphthalate, are melted in a screw extruder. Molten polymer is extruded from an extrusion die as a thick, high-viscosity ribbon, which is tempered and stretched in both the machine direction and the transverse direction to form a web of biaxially-oriented polymer of the desired width and thickness. The web is heated to a temperature above T.sub.g to set the biaxial orientation and then is glow discharge treated by passing it through an in-line glow discharge apparatus at atmospheric pressure wherein a stable glow discharge is produced in a gas mixture containing helium between two electrodes connected by an alternating power source operating at a voltage between 0.5 kV and 20 kV at a frequency between 60 Hz and 40 MHz.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: April 20, 1999
    Assignee: Eastman Kodak Company
    Inventors: Janglin Chen, Gerald G. Reafler, David A. Glocker, Mark M. Romach, Richard C. Soper, Evelio A. Perez-Albuerne
  • Patent number: 5888683
    Abstract: The invention relates to a photographic element comprising a paper base, at least one photosensitive silver halide layer, a biaxially oriented polymer sheet between said paper base and said silver halide layer, wherein said polymer sheet has a thickness of between 13 microns and 65 microns and a Young's modulus of between 700 and 5200 MPa wherein said base paper has a Young's modulus between 1380 MPa and 13800 MPa, a thickness between 75 microns and 200 microns, and an average roughness on the emulsion side of between 0.18 and 0.68 microns and wherein the ratio of thickness between said polymer sheet and said base paper is between 0.1 and 0.5.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: March 30, 1999
    Assignee: Eastman Kodak Company
    Inventors: Thaddeus S. Gula, Peter T. Aylward, Robert P. Bourdelais, Douglas N. Haydock
  • Patent number: 5876911
    Abstract: This invention provides a means for improving rapid drying ability upon development and preservability of developing solution which comprises interposing a layer of water-soluble polymer having an average molecular weight of 300,000 or more between a non-photosensitive hydrophilic colloid layer and a hydrophobic polymer layer coated on the opposite side of a support to a silver halide photographic emulsion layer, or storing dried the above silver halide photographic photosensitive material with the interposed layer at the glass transition temperature of the hydrophobic polymer or higher.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: March 2, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kenji Nakajima, Shouji Nishida
  • Patent number: 5874205
    Abstract: The invention relates to a photographic element comprising a paper base, at least one photosensitive silver halide layer, and a layer of biaxially oriented polymer sheet adhered to the back side of the said paper base opposite to the side where said at least one said silver halide photosensitive layer is located, wherein said polymer sheet is provided with indicia on the surface of said sheet between said base paper and said polymer sheet.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: February 23, 1999
    Assignee: Eastman Kodak Company
    Inventors: Robert P. Bourdelais, Douglas N. Haydock, Thaddeus S. Gula, Peter T. Aylward
  • Patent number: 5871899
    Abstract: A silver halide color photographic element comprising a support, a silver halide emulsion and poly(alkylene oxide)s wherein greater than 50 percent of the poly(alkylene oxide)s have acidic functional end groups with an aqueous pKa.ltoreq.10, or end groups which will react to form acidic functional end groups with an aqueous pKa.ltoreq.10 during development, on both termini; and wherein the poly(alkylene oxide)s have a molecular weight ranging substantially between 1700 and 6000 AMU.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: February 16, 1999
    Assignee: Eastman Kodak Company
    Inventors: David A. Dickinson, George J. Burgmaier, Thomas R. Welter
  • Patent number: 5865932
    Abstract: In a method in which a thin-film support is continuously led into a vacuum chamber from the atmospheric air, subjected to surface treatment and led-out to the atmospheric air again, a pneumatical cutoff portion of a leading-in and leading-out section is constituted by seal roller sets each of which is formed by aligned pairs of leading-in rollers and leading-out rollers which are close to each other through slight distances, and the support is led-in and led-out while lapped at an angle of from 30 to 150 degrees around the pair of rollers nearest to the atmospheric air of the seal roller sets.
    Type: Grant
    Filed: April 10, 1997
    Date of Patent: February 2, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shinichi Funabashi, Osamu Nagayama, Takashi Nawano, Hisashi Tsubata, Tadashi Aiba
  • Patent number: 5853926
    Abstract: The present invention is an imaged photographic element having a protective overcoat thereon. The protective overcoat is formed by providing a photographic element having at least one silver halide light-sensitive emulsion layer; and applying an aqueous coating comprising polymer particles having an average size of 0.1 to 50 microns at a weight percent of 5 to 50 percent, a soft polymer latex binder at a weight percent of 1 to 3 percent, over the at least one silver halide light-sensitive emulsion layer. The silver halide light sensitive emulsion layer is developed to provide an imaged photographic element. The hydrophobic polymer particles is fused to form a protective overcoat.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: December 29, 1998
    Assignee: Eastman Kodak Company
    Inventors: Anne E. Bohan, Vito A. DePalma, William K. Goebel, Amy E. Jasek, Thomas H. Whitesides
  • 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: 5851744
    Abstract: A photographic film has a width of 35 mm and comprises a continuous support comprising polyester and at least one photographic layer provided thereon. The support has a thickness of 112 to 128 .mu.m. The polyester has recurring units comprising 60 to 85 molar % of ethylene-2,6-naphthalate unit and 15 to 40 molar % of ethylene terephthalate unit and satisfies the formula (1):-0.65.ltoreq.?NDA!+log ?NET!.ltoreq.0.28 (1)wherein ?NDA! represents a ratio of a number of 2,6-naphthalate unit to a total number of 2,6-naphthalate unit and terephthalate unit, and ?NET! represents a ratio of a number of ethylene unit which has a 2,6-naphthalate unit on one side and a terephthalate unit on the other side to a total number of an ethylene unit in the polyester.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: December 22, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Fumiyuki Suzuki, Takahito Miyoshi, Yukio Shirokura, Takanori Sato, Hiroko Sugihara
  • 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: 5851721
    Abstract: A film formed by stretching and heat-fixing a melt of a polyester and a polyolefin which has a melting temperature lower than that of the polyester is employed as a support for a diffusive transfer-type photothermographic material, which prevents processing unevenness and white spot.
    Type: Grant
    Filed: July 2, 1997
    Date of Patent: December 22, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Takeshi Shibata
  • Patent number: 5837012
    Abstract: A method for dyeing a photographic polyester support is disclosed, comprising the use of transparent pellets and a dye granulated so as to satisfy the requirements that:(1) the particle size is 50% or more;(2) the angle of repose is 60.degree. or less; and(3) the particle hardness is from 160 to 400 g on average and has a lower limit of 50 g.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: November 17, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Fumio Kawamoto
  • Patent number: 5834174
    Abstract: A photographic element comprising a support, at least one hydrophilic light-sensitive layer, and a light-insensitive layer containing a binder and solid, nonporous polymer matte particle having the formula:(A).sub.x (B).sub.ywhere A is a monofunctional ethylenically unsaturated monomer, B is a polyfunctional ethylenically unsaturated monomer, x is from 0 to 55 mole %, and y is about 45 to 100 mole %.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: November 10, 1998
    Assignee: Eastman Kodak Company
    Inventors: Dennis Edward Smith, Yongcai Wang, Patrick M. Jeffries
  • 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: 5824464
    Abstract: The present invention is a photographic element which includes a support having a front surface and a back surface, and a silver halide imaging layer superposed on the front side of the support. A backing layer is superposed on the backside of the support and is formed by the coating and subsequent drying of an aqueous coating composition having therein a mixture of film-forming colloidal particles and non-film-forming colloidal particles and a fluoropolyether comprising more than 90 mole % units selected from the group consisting of --CF.sub.2 --CF.sub.2 --O--, --CF.sub.2 --O--, --CF(CF.sub.3)--O--, and --CF.sub.2 --CF(CF.sub.3)--O--, and a functional group selected from the group consisting of COOH, --CH.sub.2 --OH, --CH.sub.2 --COOH, --CH.sub.2 --SO.sub.3 H, --CH.sub.2 --PO.sub.3 H, --(CH.sub.2 --CH.sub.2 --O)--H, and --(CH.sub.2 --CH(CH.sub.3)--O--)--H.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: October 20, 1998
    Assignee: Eastman Kodak Company
    Inventors: Brian A. Schell, Michael W. Orem, Yongcai Wang
  • Patent number: 5824461
    Abstract: The present invention is an imaging element which includes a support, and at least one imaging layer superposed on the support. A protective overcoat is superposed on the support, and is formed by coating and subsequent drying of an aqueous coating composition having therein colloidal polymer particles having a glass transition temperature of greater than 20.degree. C. and a fluoropolyether including more than 90 mole % units selected from the group consisting of --CF.sub.2 --CF.sub.2 --O--, --CF.sub.2 --O--, --CF(CF.sub.3)--O--, and --CF.sub.2 --CF(CF.sub.3)--O--, and a functional group selected from the group consisting of COOH, --CH.sub.2 --OH, --CH.sub.2 --COOH, --CH.sub.2 --SO.sub.3 H, --CH.sub.2 --PO.sub.3 H, --(CH.sub.2 --CH.sub.2 --O)--H, and --(CH.sub.2 --CH(CH.sub.3)--O--)--H. The present invention includes the imaging element produced from the coating composition.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: October 20, 1998
    Assignee: Eastman Kodak Company
    Inventors: Brian A. Schell, Michael W. Orem, Yongcai Wang
  • Patent number: 5821027
    Abstract: The present invention is a method of producing an imaging support which includes providing a support, simultaneously coating on a side of the support; a transparent magnetic recording layer including magnetic particles, a polymeric binder and an organic solvent, and a lubricating overcoat layer farthest from the support, the lubricating overcoat layer including a lubricant selected form the general formulas I, II or III:wherein general formula I comprises: ##STR1## wherein X is selected from the group consisting of esters, amides, ethers, or methylene, a is from 10 to 500, and b is from 4 to 3000, and the general formula I has a molecular weight at least 800;wherein general formula II comprises: ##STR2## wherein Y is selected from the group consisting of, --C-- and --N--, Z is selected from the group consisting of esters, amides, and a carbon-carbon bond, R is selected from the group consisting of methyl, and hydrogen or may be absent if Y equals nitrogen, c is from 1 to 2, d is from 4 to 3000, e is from 10 t
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: October 13, 1998
    Assignee: Eastman Kodak Company
    Inventors: Christine J. Landry-Coltrain, Bradley K. Coltrain, Michael J. Corrigan, David B. Bailey
  • Patent number: 5804341
    Abstract: A clear protective overcoat is provided to an image formed in a silver halide photographic element. The overcoat is formed by electrostatically applying a uniform distribution of clear toner to an imaged photographic element and then fusing the toner to form an overcoat. The toner can be applied only in a limited area of the element.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: September 8, 1998
    Assignee: Eastman Kodak Company
    Inventors: Anne E. Bohan, Vito A. DePalma, William K. Goebel, Dennis R. Kamp
  • Patent number: 5800969
    Abstract: A method is disclosed of processing an image-wise exposed light-sensitive silver halide material by the steps of developing, fixing in a fixer solution containing less than 4 g per liter of aluminum ions expressed as an equivalent amount of aluminum sulphate, rinsing and drying; characterised in that said material comprises a support and on one or both sides thereof at least one light-sensitive silver halide emulsion layer and a gelatinous protective antistress layer, wherein said antistress layer comprises at least one polymer latex in such an amount that there is a ratio by weight of latex to gelatin is from 0.5 to 1.5 and wherein said material is hardened to such an extent that its swelling degree after immersing said material for 3 minutes in demineralised water of 25.degree. C. is not more than 300%.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: September 1, 1998
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Hubert Vandenabeele, Hendrik Lambrecht
  • Patent number: 5795705
    Abstract: A method for preparing a photographic photosensitive film comprising a support and formed on at least one side thereof photographic constituent layers containing a photosensitive silver halide emulsion layer is disclosed, which comprises subjecting the photographic photosensitive film to an "out-of-roll curling treatment" so as to result in an outermost-lap curl value of from 55 m.sup.-1 to 200 m.sup.-1 as measured after the treated film is housed in a cartridge, with the emulsion layer side facing inward. Also disclosed are a photographic photosensitive film which comprises a support and formed on at least one side thereof photographic constituent layers containing a photosensitive silver halide emulsion layer and has been prepared by the above method, and a photographic film cartridge containing housed therein the above photographic photosensitive film so that a front end part of the film is out of the cartridge over a length of at least 1 cm.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: August 18, 1998
    Assignee: Fugi Photo Film Co., Ltd.
    Inventor: Fumio Kawamoto
  • Patent number: 5786298
    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 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: July 28, 1998
    Assignee: Eastman Kodak Company
    Inventors: Andy H. Tsou, Charles C. Anderson, Paul E. Woodgate, Debra L. Delle Fave
  • Patent number: 5780215
    Abstract: A silver halide color photographic material comprises a paper support, and provided thereon, a light sensitive silver halide emulsion layer and a non-light sensitive layer, said support comprising a paper base and a resin layer coated on each side of the paper base, the resin layer on the silver halide emulsion layer side comprising two or more resin layers containing white pigment and having a different white pigment content, at least one of the resin layers being composed of a polyolefin or polyester resin, and at least another one layer being composed of a resin selected from the group consisting of a polyester resin, a polyether resin, a polyurethane resin, a polycarbonate resin, a polystyrene resin, a cellulose derivative and an electron beam hardened rein, wherein the silver halide emulsion layer comprises a silver halide emulsion having a silver chloride content of 95 to 99.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: July 14, 1998
    Assignee: Konica Corporation
    Inventor: Mineko Ito
  • 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: 5756273
    Abstract: A photographic element having a support, a light-sensitive layer and a protective overcoat layer, at least one layer comprising a hydrophilic colloid containing colloidal core-shell latex particles, the core being a hydrophobic polymer and the shell comprising greater than 10 and less than 90 mole percent of an ethylenically unsaturated monomer having a carboxylic acid group.
    Type: Grant
    Filed: February 6, 1996
    Date of Patent: May 26, 1998
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Gary William Visconte, Alfred Bruce Fant, James Lee Bello, Kurt Michael Schroeder
  • Patent number: 5736309
    Abstract: There is disclosed a method of manufacturing a photographic polyester film, comprising forming an unstretched film controlling; each of the temperature of the inlet of a melt extruder, at a temperature in the range from "the melting point of the polymer (Tm)"-10.degree. C. to the Tm+15.degree. C.; the temperature of the central part of a screw, at a temperature in the range from the Tm to the Tm+30.degree. C.; and the temperature of the outlet thereof, at a temperature in the range from the Tm+10.degree. C. to the Tm+35.degree. C., followed by biaxial stretching and heat-setting, and a photographic support manufactured by the method. The thus obtained photographic polyester support excels in photographic properties, adhesiveness, and mechanical strength, and that moreover hardly causes a core set curl and fog formation.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: April 7, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Fumio Kawamoto
  • 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: 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: 5723208
    Abstract: A laminated base film for a photographic film, (A) which is a laminated film comprising a first layer formed substantially of polyethylene-2,6-naphthalenedicarboxylate and a second layer formed substantially of a polymer composition containing a 2,6-naphthalenedicarboxylate unit ##STR1## and an ethylene unit (--CH.sub.2 CH.sub.2 --) in a total amount of at least 50% by weight, and (B) which has a haze value of 3.0% or less, (C) in which the first layer has a plane orientation coefficient (NS.sub.1) of 0.270 or less, and (D) in which the first layer thickness/second layer thickness ratio is in the range of from 3/7 to 7/3 wherein the laminated film has a curl degree f.sub.2 in the longitudinal direction of 0 to 70%. This base film is provided with a proper curling which can be cured by the contraction of a photosensitive emulsion and has various suitable properties as a base film for a photographic film, such as transparency, lubricity, and the like.
    Type: Grant
    Filed: August 3, 1995
    Date of Patent: March 3, 1998
    Assignee: Teijin Limited
    Inventors: Kenji Suzuki, Tsuyoshi Nagai, Koji Furuya
  • Patent number: 5719015
    Abstract: A silver halide photographic material comprising a support having thereon at least one silver halide light-sensitive layer and at least one light-insensitive layer, wherein the support comprises a poly(alkylene aromatic dicarboxylate) having a glass transition temperature of from 50.degree. C. to 200.degree. C. and is heat-treated at a temperature of not lower than 40.degree. C., but lower than the glass transition temperature for 0.1 to 1500 hours after molding the polymer into the support and before the coating of the silver halide light-sensitive layer, and said at least one light-insensitive layer contains a dispersion of crystallites of at least one dye represented by general formula (I):D--(X).sub.y (I)wherein D represents a moiety having a chromophoric group; X represents a dissociable proton or a group having a dissociable proton which is bonded to D either directly or through a bivalent bonding group; and y represents an integer of 1 to 7.
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: February 17, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Kiyoshi Nakazyo
  • Patent number: 5716765
    Abstract: Photographic films having a magnetic recording layer are processed using a final processing solution containing a mixture of surfactants. The final processing solution can be a final rinse solution or an image stabilizing solution further containing an image stabilizer. The specific final processing solution composition provides processed films that are free of scum, non-tacky, and resistant to abrasion and fingerprinting on the back side.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: February 10, 1998
    Assignee: Eastman Kodak Company
    Inventors: Hugh Gerald McGuckin, John Stuart Badger, Brad Mitchell Boersen
  • 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: 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: 5700577
    Abstract: The present invention is a biaxially oriented polyester film support in which the surface has been subjected to an energetic treatment to produce amine groups on the polyester surface. The treated surface is then coated with a dilute amine reactive hardener solution. After drying the hardener solution a photographic emulsion is coated to the surface. The resulting film element has better adhesion of the photographic emulsion after photoprocessing than previous known methods.
    Type: Grant
    Filed: April 24, 1996
    Date of Patent: December 23, 1997
    Assignee: Eastman Kodak Company
    Inventors: Jeremy Grace, Louis J. Gerenser, Janglin Chen, Edgar E. Riecke
  • Patent number: 5698378
    Abstract: A photographic material comprising a polyester support and an undercoat and/or backcoat layer applied thereto is treated with an alkaline aqueous solution of sodium hydroxide and/or potassium hydroxide. The polyester support can be recovered for reuse without quality degradation like foreign matter contamination and transmittance losses.
    Type: Grant
    Filed: November 17, 1995
    Date of Patent: December 16, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Fumio Kawamoto
  • Patent number: 5698329
    Abstract: A coated film having a polymeric film substrate with a subbing layer containing an organic acid and a polymer which has a repeating unit(s) containing a pendant nitrogen atom(s). The ratio of organic acid to polymer in the subbing layer is in the range from 1:0.1 to 20 by weight. The coated film exhibits excellent adhesion to photographic emulsion layers, even when applied prior to completion of any film stretching operation.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: December 16, 1997
    Assignee: Imperial Chemical Industries PLC
    Inventor: Julian Neal Robinson
  • 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: 5690994
    Abstract: A coated film having a polymeric film substrate with a subbing layer containing an organic acid and a polymer which has a repeating unit(s) containing a pendant nitrogen atom(s). The ratio of organic acid to polymer in the subbing layer is in the range from 1:0.1 to 20 by weight. The coated film exhibits excellent adhesion to photographic emulsion layers, even when applied prior to completion of any film stretching operation.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: November 25, 1997
    Assignee: Imperial Chemical Industries PLC
    Inventor: Julian Neal Robinson
  • Patent number: 5679505
    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.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: October 21, 1997
    Assignee: Eastman Kodak Company
    Inventors: Kenneth Lloyd Tingler, Charles Chester Anderson, Lori Jeanne Shaw-Klein
  • Patent number: 5677117
    Abstract: A silver halide photographic material is disclosed, which comprises a support having thereon at least one light-sensitive silver halide emulsion layer comprising silver halide grains sensitized with a selenium or tellurium sensitizer and having a silver chloride content of 50 mol % or more, wherein the silver halide emulsion layer or other hydrophilic colloid layer contains polymer latex having an active methylene group. The silver halide photographic material provides high storage stability and less pressure marks.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: October 14, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiichi Yamamoto, Nobuaki Inoue