Subjected To Radiation, Flame, Or Corona Discharge Patents (Class 430/532)
  • Patent number: 9533327
    Abstract: A transparent resin plate superior in quality and productivity and a method for producing the same by forming a hard-coat layer on a substrate into a hardened film and by establishing a reforming method thereof are disclosed. The transparent resin plate has a substrate (1), a primer layer (2) and a hard-coating layer (3) in order, wherein the primer layer (2) is formed by a wet method, the hard-coating layer (3) is formed out of silicone polymer by the wet method, the surface of the silicone polymer layer is exposed to irradiation by ultraviolet light having a wavelength less than 200 nm, and only the exposed region is changed into a reformed region mainly composed of silicon dioxide.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: January 3, 2017
    Assignee: KABUSHIKI KAISHA RENIASU
    Inventor: Sadao Maeda
  • Patent number: 7749676
    Abstract: A positive type photoresist resin film contains a support film and a positive photoresist resin layer laminated over the support film. The peak height (Rp) of the support film is less than about 300 nm to eliminate fish eye defects. The positive photoresist resin layer may contain alkali soluble resin, a diazide based photosensitive compound, a plasticizer and, optionally, a sensitivity enhancer and a releasing agent.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: July 6, 2010
    Assignee: Kolon Industries, Inc.
    Inventors: Se-Hyung Park, Byoung-Kee Kim, Jong-Min Park, Seong-In Baek
  • Patent number: 7063885
    Abstract: A multi-layer, thermoplastic film bi-axially oriented at a stretching ratio ? to about 3.0:1 in the machine direction and at a stretching ratio ? about 6.0:1 in the transverse direction, which film comprises a layer a) comprising at least 50 wt. % of a crystalline or partially crystalline co-polyamide characterized by a Tg?100° C. and at least one outer heat-sealing layer b) comprising a polyolefin, said film being further characterized in that it has a % free shrink at 100° C.?3 in each direction.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: June 20, 2006
    Assignee: Cryovac, Inc.
    Inventors: Eugenio Longo, Roberto Forloni, Gregorio Di Cesare
  • Patent number: 6558889
    Abstract: A surface treatment method for enhancing hydrophobicity of the surface of a film support is disclosed, comprising subjecting at least one side of the surface to a gas-discharge plasma treatment in a gas phase atmosphere comprising (a) an inert gas comprising argon or helium and (b) a reactive gas comprising a hydrocarbon gas or fluorinated hydrocarbon gas. There is also disclosed a photothermographic material by the use of the support having been subjected to the surface treatment.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: May 6, 2003
    Assignee: Konica Corporation
    Inventors: Kiyoshi Oishi, Kazuhiro Fukuda
  • Patent number: 6544722
    Abstract: The invention is directed to a process for the preparation of polymer laminated base paper, said process comprising laminating a base paper web on at least one side thereof with at least one polymer layer by extrusion-coating at a coating speed of 300 m/min or more, wherein the said base paper web is heated prior to laminating.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: April 8, 2003
    Assignee: Fuji Photo Film B.V.
    Inventors: Jan Bastiaan Bouwstra, Ieke de Vries
  • Patent number: 6514660
    Abstract: The invention relates to an imaging member comprising a polymer sheet, a primer layer comprising polyethyleneimine and gelatin contacting said polymer sheet, and an image receiving layer contacting said primer layer.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: February 4, 2003
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Peter T. Aylward, Robert P. Bourdelais, YuanQiao Rao
  • Patent number: 6455239
    Abstract: A surface treatment method for enhancing hydrophobicity of the surface of a film support is disclosed, comprising subjecting at least one side of the surface to a gas-discharge plasma treatment in a gas phase atmosphere comprising (a) an inert gas comprising argon or helium and (b) a reactive gas comprising a hydrocarbon gas or fluorinated hydrocarbon gas. There is also disclosed a photothermographic material by the use of the support having been subjected to the surface treatment.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: September 24, 2002
    Assignee: Konica Corporation
    Inventors: Kiyoshi Oishi, Kazuhiro Fukuda
  • Publication number: 20020039710
    Abstract: Disclosed are a polyester support excellent in cutting properties in a photofinishing laboratory, which has both transverse direction (TD) and machine direction (MD) breaking strengths of from 5 kg/mm2 to 18 kg/mm2, and both TD and MD breaking elongations of from 20% to 140%, and a silver halide photographic material using the support.
    Type: Application
    Filed: December 27, 2000
    Publication date: April 4, 2002
    Inventor: Kiyokazu Hashimoto
  • Patent number: 6352805
    Abstract: The present invention is directed to an imaged element that includes a support, at least image-receiving layer superposed on the support and a water-resistant protective overcoat overlying the image-receiving layer that is water-resistance. The present invention is also directed to a method of making a print by application of a UV-curable water-dispersible latex.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: March 5, 2002
    Assignee: Eastman Kodak Company
    Inventors: Jeffrey F. Taylor, Kevin M. O'Connor, Elmer C. Flood, Hwei-Ling Yau, Tienteh Chen
  • Publication number: 20020012889
    Abstract: A surface treatment method for enhancing hydrophobicity of the surface of a film support is disclosed, comprising subjecting at least one side of the surface to a gas-discharge plasma treatment in a gas phase atmosphere comprising (a) an inert gas comprising argon or helium and (b) a reactive gas comprising a hydrocarbon gas or fluorinated hydrocarbon gas. There is also disclosed a photothermographic material by the use of the support having been subjected to the surface treatment.
    Type: Application
    Filed: March 6, 2001
    Publication date: January 31, 2002
    Inventors: Kiyoshi Oishi, Kazuhiro Fukuda
  • Patent number: 6291127
    Abstract: The invention relates to an imaging member comprising at least one image layer and a base, said base comprising a cellulose paper that has its surfaces impregnated with water dispersible ester-based condensation polymer wherein the surface of said base has a roughness of less than 2.03 &mgr;m Ra and a hydrophobicity as measured by 40/20 Acid Valley test in excess of 500 seconds.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: September 18, 2001
    Assignee: Eastman Kodak Company
    Inventors: Sandra J. Dagan, Suresh Sunderrajan, Charles E. Romano, Jr., Robert A. Guistina
  • Patent number: 6214530
    Abstract: A base film including a substrate, an adhesion layer, a conductive layer, and a magnetic layer is provided. The adhesion layer preferably includes a sulfonated polyester/vinyl addition polymer, wherein the adhesion layer is disposed between the substrate and the conductive layer and improves adhesion between these layers, even under wet conditions. An adhesion layer is particularly useful in photographic elements and is at least located on a surface of the substrate that is opposite a silver halide emulsion layer, although emulsion receptivity can be enhanced by including an adhesion layer on the emulsion-side of the substrate.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: April 10, 2001
    Assignee: Tulalip Consultoria Comercial Sociedade Unidessoal S.A.
    Inventors: Eric D. Morrison, Paola Puppo
  • Patent number: 6190842
    Abstract: An imaging support element comprising a polymeric film support and a thermally stable single subbing layer is made by forming a coating over the polymeric film support, the coating having a surface including amine reactive groups in a density of at least 1010 per cm2 and then heat treating the polymeric film support with the coating thereon at a temperature in the range of from about 50° C. below the glass transition temperature (Tg) of the polymeric support up to the glass transition temperature (Tg) of the polymeric support. The polymeric film support is nitrogen plasma treated. The layer is formed by applying to the polymeric support web a coating including at least one non-amine reactive comonomer and at least one comonomer having amine reactive side groups.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: February 20, 2001
    Assignee: Eastman Kodak Company
    Inventors: Jeremy M. Grace, Louis J. Gerenser, Wayne A. Bowman, Elizabeth G. Burns, Richard A. Castle, David M. Teegarden
  • Patent number: 6174660
    Abstract: A silver halide photographic light-sensitive material comprising a support having thereon at least a light-sensitive silver halide emulsion layer containing a light-sensitive silver halide emulsion and at least a nonlight-sensitive layer, wherein said silver halide photographic light-sensitive material contains a compound represented by the following formula (1) and said silver halide photographic light-sensitive material further contains a vinylsulfone group containing hardener. HOCH2(CHOH)mCH2OH  Formula (1) wherein m represents an integer of 0 to 6.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: January 16, 2001
    Assignee: Konica Corporation
    Inventors: Takesi Nakamura, Katsumasa Yamazaki
  • Patent number: 6140030
    Abstract: In accordance with the present invention a photographic element contains a first electrically-conductive layer and a second electrically-conductive layer. The first conductive layer has an electrical resistivity of less than 1.times.10.sup.9 .OMEGA./.quadrature. before film processing and an electrical resistivity of greater than 1.times.10.sup.11 .OMEGA./.quadrature. after film processing. The second conductive layer has an electrical resistivity of between 1.times.10.sup.9 .OMEGA./.quadrature. and 1.times.10.sup.11 .OMEGA./.quadrature. both before and after film processing. Both of the electrically-conductive layers are transparent. In an alternative embodiment, the photographic element contains a transparent electrically-conductive layer containing a first electrically-conductive agent and a second electrically-conductive agent. The electrically-conductive layer has an electrical resistivity of less than 1.times.10.sup.9 .OMEGA./.quadrature.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: October 31, 2000
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Mario D. DeLaura
  • Patent number: 6045969
    Abstract: The present invention provides a method for obtaining a lithographic base comprising on a hydrophobic support a hydrophilic layer contiguous to said support containing a non-gelatinous hydrophilic (co)polymer or (co)polymer mixture, characterized in that said hydrophobic support is treated with a plasma treatment with an applied power density during the plasma treatment of at least 70 W min/m.sup.2 before applying to said support said hydrophilic layer.
    Type: Grant
    Filed: July 2, 1998
    Date of Patent: April 4, 2000
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Eric Verschueren, Bavo Muys, Jan Dierckx, Jean Van Trier, Wim Cortens
  • Patent number: 6030712
    Abstract: A printing plate material producing prints with inhibited background staining is provided by formation of a photosensitive layer comprising nitrocellulose, a black coloring agent, e.g. carbon black, and an organic binder and having (1) a surface roughness of not greater than Rmax. 2.0 .mu.m or (2) a surface tension equivalent to a wettability index of not greater than 36 dyn/cm on a support. The nitrocellulose has a nitrogen content of 11 to 12.5% and a solution viscosity of about 1 to 1/8 second. The organic binder includes polyester resins such as solvent-soluble, noncrystal-line, linear, oil-free aromatic polyesters. Based on 100 parts by weight of the organic binder, the amount of nitrocellulose is about 5 to 300 parts by weight and that of the black coloring agent is about 0.5 to 50 parts by weight. The photosensitive layer may contain a crosslinking agent, e.g. melamine resin, and/or a water repellent, e.g. a silicone compound or a fluorine-containing compound.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: February 29, 2000
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Kazuo Notsu, Yoshinori Funaki
  • Patent number: 5968646
    Abstract: The present invention comprises a polyester film support in which the surface has been subjected to an energetic treatment with nitrogen plasma to produce amine groups on the polyester surface. The treated surface is then coated with a dilute solution of amine reactive hardener and gelatin. After drying the hardener/gelatin coated support a photographic emulsion is coated on the surface. The resulting film element has excellent adhesion of the photographic emulsion after photoprocessing, and it is safer to coat and handle than previously known methods involving grafting of hardener directly to the support.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: October 19, 1999
    Assignee: Eastman Kodak Company
    Inventors: Jeremy M. Grace, Louis J. Gerenser, Richard A. Castle, Janglin Chen, Edgar E. Riecke
  • 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: 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: 5888713
    Abstract: The present invention is a method of producing a photographic support. The method includes providing a photographic paper and transporting the photographic paper through an atmospheric glow discharge zone, wherein the atmospheric glow discharge zone contains a gas with a dielectric strength which is less than air. The atmospheric glow discharge zone is subjected to an electric frequency between 40 kHz and 13.56 Mhz and an electric field such that an atmospheric glow discharge is formed; and the photographic paper is coated with a polymeric coating.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: March 30, 1999
    Assignee: Eastman Kodak Company
    Inventors: Eric E. Arrington, David A. Glocker, Theodore J. Tatarzyn
  • 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: 5861237
    Abstract: A photographic element is disclosed, comprising a support having a gelatin undercoat, having provided thereon an acetylcellulose layer containing from 1.0 to 12.0 wt % of a polymer represented by formula (1) and from 5 to 40 wt % of a compound having at least two isocyanate groups, both based on acetylcellulose contained in the acetylcellulose layer. Also disclosed is a diffusion transfer photographic light-sensitive material comprising a photographic element comprising a support having a gelatin undercoat, having provided thereon an acetylcellulose layer containing from 2.0 to 9.0 wt % of a polymer represented by formula (1) and from 5 to 20 wt % of a compound having at least two isocyanate group, both based on acetylcellulose contained in the acetylcellulose layer.
    Type: Grant
    Filed: September 5, 1997
    Date of Patent: January 19, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hideki Takaki
  • Patent number: 5853965
    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 polyolefin sheet between the top of said paper base and said at least one silver halide layer wherein said biaxially oriented polyolefin sheet comprises a top layer of polyethylene polymer that bonds to gelatin.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: December 29, 1998
    Assignee: Eastman Kodak Company
    Inventors: Douglas N. Haydock, Thaddeus S. Gula, Peter T. Aylward, Robert P. Bourdelais
  • Patent number: 5824463
    Abstract: This invention describes a method for manufacturing a photographic support which includes providing a support and laminating a surface of the support with a polymer resin formulation containing from 0.001 to 1 weight percent antioxidant at a temperature of from 305.degree. to 360.degree. C. while exposing the polymer resin formulation to an ozone containing gas at a rate of greater than 0.1 mg/m.sup.2 of said support.
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: October 20, 1998
    Assignee: Eastman Kodak Company
    Inventor: Eric E. Arrington
  • 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: 5773125
    Abstract: A syndiotactic styrenic polymer film has a coated layer. The film has a height of waviness of not higher than 18 mm. A process for the preparation of the same is also disclosed. A silver halide photographic material having the syndiotactic styrenic polymer film as a support is further disclosed.
    Type: Grant
    Filed: December 20, 1995
    Date of Patent: June 30, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kiyokazu Hashimoto, Hiroshi Kawasaki
  • 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: 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: 5718995
    Abstract: A composite support for an imaging element is described, which composite support comprises a polymeric film and an electrically conductive layer, wherein the polymeric film comprises a surface which has been activated by energetic treatment, the electrically conductive layer comprises an electrically conductive agent dispersed in an aqueous dispersible polymeric binder comprising an aliphatic, anionic polyurethane having an ultimate elongation to break of at least 350 percent, and the electrically conductive layer is in contiguous contact with the activated surface of the polymeric film. Imaging elements for use in an image-forming process are also described, which element comprise such composite supports and at least one image-forming layer. The invention provides composite supports and imaging elements containing an electrically conductive antistatic layer having excellent adhesion to energetic surface-treated polymer film supports, and of auxiliary layers to the electrically conductive antistatic layer.
    Type: Grant
    Filed: June 12, 1996
    Date of Patent: February 17, 1998
    Assignee: Eastman Kodak Company
    Inventors: Dennis John Eichorst, Cathy Ann Fleischer, Jeremy Grace, Paul Daniel Yocobucci
  • 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: 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: 5681687
    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: February 2, 1996
    Date of Patent: October 28, 1997
    Assignee: Eastman Kodak Company
    Inventors: Mark Lelental, Bradley Keith Coltrain, David Appler Glocker, Dennis R. Freeman, Jeremy Matthew Grace
  • Patent number: 5677116
    Abstract: The invention provides a photographic element comprising a polyester support bearing a light-sensitive silver halide photographic emulsion layer, the support having adjacent thereto a polymer-containing subbing layer, the subbing layer having adjacent thereto a layer comprising a hydrophilic binder containing dispersed droplets of a high boiling hydrophobic organic liquid, said liquid having a logarithm of its octanol/water partition coefficient (log P) value greater than 7.7. The invention also includes a process for preparing a photographic element of the invention and a process for forming an image in an element of the invention. The invention further includes a photographic element comprising a polyester support bearing a hydrophilic layer containing an antihalation agent, such as elemental silver, with or without an intervening subbing layer.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: October 14, 1997
    Assignee: Eastman Kodak Company
    Inventors: Paul Leo Zengerle, John Brian Rieger, John William Boettcher, Richard Allen Carmack
  • Patent number: 5639589
    Abstract: A polyester photographic film support having a surface coated with a subbing layer which comprises a mixture of gelatin and a polymer where the gelatin to polymer ratio is less than 97:3 and such that the combination of dry coverage and weight fraction of gelatin in the mixture satisfies the equation: C+1.32.times.Z.gtoreq.0.825, where C is dry coverage in g/m.sup.2 and Z is the weight fraction of gelatin, and the polymer comprises:a) from 1 to 60 weight percent of recurring units derived from a vinyl monomer having a primary amine addition salt component or aminostyrene addition salt component;b) from 0 to 50 weight percent of recurring units derived from a hydrophilic vinyl monomer; andc) from 20 to 98 weight percent of recurring units derived from a hydrophobic nonionic vinyl monomer.
    Type: Grant
    Filed: May 9, 1996
    Date of Patent: June 17, 1997
    Assignee: Eastman Kodak Company
    Inventors: Charles Leo Bauer, Janglin Chen, David Appler Glocker, Melinda Gay Messick
  • Patent number: 5618659
    Abstract: The present invention is a polyester film base which has a surface approximately 5 nm thick. The surface of the film base has been altered to include about 6 to 15 atomic percent nitrogen in the form of imines, secondary amines and primary amines in the ratio of about 1:1:2. The invention also includes a film base whose surface includes oxygen in the form of hydroxyl, ether, epoxy, carbonyl or carboxyl groups wherein the oxygen is about 4 to 10 atomic percent above the original surface content of the base. The polyester film base can be either polyethylene terephthalate or polyethylene naphthalate.
    Type: Grant
    Filed: February 14, 1996
    Date of Patent: April 8, 1997
    Assignee: Eastman Kodak Company
    Inventors: Jeremy M. Grace, Janglin Chen, Louis J. Gerenser, David A. Glocker
  • Patent number: 5582921
    Abstract: The present invention is a polyester film base which has a surface approximately 5 nm thick. The surface of the film base has been altered to include about 6 to 15 atomic percent nitrogen in the form of imines, secondary amines and primary amines in the ratio of about 1:1:2. The invention also includes a film base whose surface includes oxygen in the form of hydroxyl, ether, epoxy, carbonyl or carboxyl groups wherein the oxygen is about 4 to 10 atomic percent above the original surface content of the base. The polyester film base can be either polyethylene terephthalate or polyethylene naphthalate.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: December 10, 1996
    Assignee: Eastman Kodak Company
    Inventors: Jeremy M. Grace, Janglin Chen, Louis J. Gerenser, David A. Glocker
  • Patent number: 5580707
    Abstract: Disclosed is a silver halide photographic material of a roll film form having at least one light-sensitive layer on a polyester film support. The polyester film support has a glass transition point (Tg) from 90.degree. C. to 200.degree. C. and has been heat-treated at a temperature from 50.degree. C. to its Tg. Also disclosed is a silver halide photographic material having at least one light-sensitive layer on a polyester film support, in which the polyester film support has a glass transition point from 90.degree. C. to 200.degree. C. and has been formed under the filming condition of a stretching temperature difference between the two surfaces of the film. The material is hardly curled even in the form of a roll film wound around a thin spool and has excellent mechanical characteristics.
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: December 3, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Fumio Kawamoto
  • Patent number: 5576164
    Abstract: The present invention is a polyester film base which has a surface approximately 5 nm thick. The surface of the film base has been altered to include about 6 to 15 atomic percent nitrogen in the form of imines, secondary amines and primary amines in the ratio of about 1:1:2. The invention also includes a film base whose surface includes oxygen in the form of hydroxyl, ether, epoxy, carbonyl or carboxyl groups wherein the oxygen is about 4 to 10 atomic percent above the original surface content of the base. The polyester film base can be either polyethylene terephthalate or polyethylene naphthalate.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: November 19, 1996
    Assignee: Eastman Kodak Company
    Inventors: Jeremy M. Grace, Janglin Chen, Louis J. Gerenser, David A. Glocker
  • Patent number: 5567572
    Abstract: A support sheet for a photographic printing sheet having enhanced anti-fogging and anti-yellowing properties comprises a pulp paper substrate sheet, a front coating layer formed on a front surface of the substrate sheet and comprising a cured resinous material produced from electron beam-curable unsaturated organic compound by an electron beam irradiation thereto and mixed with a white pigment, and a back coating layer formed on a back surface of the substrate sheet and comprising a film-forming synthetic resinous material, in which a magnesium compound is contained, as an anti-fogging agent, in the substrate sheet and/or the front coating layer.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: October 22, 1996
    Assignee: New Oji Paper Co., Ltd.
    Inventors: Takaharu Miura, Masataka Itoh, Chieko Tanaka
  • Patent number: 5563029
    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 3, 1995
    Date of Patent: October 8, 1996
    Assignee: Eastman Kodak Company
    Inventors: Jeremy Grace, Louis J. Gerenser, Janglin Chen, Edgar E. Riecke
  • Patent number: 5547822
    Abstract: Disclosed is a process for producing a titanium dioxide pigment used for a resin-coated paper type photographic support, comprising the following steps:(a) a step of adding at least one alkaline earth metal compound in an amount of 0.01-2.0% by weight in terms of a metal oxide based on the titanium dioxide before calcination step and(b) an acid-washing step of washing the titanium dioxide at acidic state after the calcination step and before a step of surface treatment with a hydrated metal oxide,and wherein particle size of the titanium dioxide pigment is 0.110-0.150 .mu.m shown by number-average diameter obtained by measuring the diameter in a certain direction using an electron microscope. A photographic support which comprises the above titanium dioxide pigment is also disclosed. Occurrence of die lip stain and microgrit are substantially reduced in the photographic support and a photographic material made thereof exhibits improved image sharpness.
    Type: Grant
    Filed: August 4, 1994
    Date of Patent: August 20, 1996
    Assignees: Mitsubishi Paper Mills, Tohkam Products
    Inventors: Touru Noda, Akira Uno, Kazuyoshi Muraoka
  • Patent number: 5538841
    Abstract: The present invention is a polyester film base which has a surface approximately 5 nm thick. The surface of the film base has been altered to include about 6 to 15 atomic percent nitrogen in the form of imines, secondary amines and primary amines in the ratio of about 1:1:2. The invention also includes a film base whose surface includes oxygen in the form of hydroxyl, ether, epoxy, carbonyl or carboxyl groups wherein the oxygen is about 4 to 10 atomic percent above the original surface content of the base. The polyester film base can be either polyethylene terephthalate or polyethylene naphthalate.
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: July 23, 1996
    Assignee: Eastman Kodak Company
    Inventors: Jeremy M. Grace, Janglin Chen, Louis J. Gerenser, David A. Glocker
  • Patent number: 5516458
    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 bycoating 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: May 11, 1995
    Date of Patent: May 14, 1996
    Assignee: Eastman Kodak Company
    Inventors: Mark Lelental, Bradley K. Coltrain, David A. Glocker, Dennis R. Freeman, Jeremy M. Grace
  • Patent number: 5503968
    Abstract: A method of making resin coated photographic paper which comprises providing a paper base, subjecting the paper base to a flame treatment and a corona discharge treatment, providing a polyolefin melt curtain, treating the polyolefin resin melt curtain with a mixture of ozone and air and bringing the paper base in contact with the polyolefin melt curtain to provide a uniform layer of polyolefin resin on the paper base.
    Type: Grant
    Filed: September 27, 1994
    Date of Patent: April 2, 1996
    Assignee: Eastman Kodak Company
    Inventor: Jong S. Lee
  • Patent number: 5496691
    Abstract: A process for producing a silver halide photographic material comprising a polyester support having thereon at least one light-sensitive layer and at least one undercoat layer is described, wherein the undercoat layer is provided by coating a solution containing gelatin for an undercoating binder having a calcium ion (Ca.sup.++) content of from 10 to 2,500 ppm based on dry gelatin.
    Type: Grant
    Filed: February 6, 1995
    Date of Patent: March 5, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hajime Miyamoto, Masahiko Murayama
  • Patent number: 5457016
    Abstract: A photographic support material has a back coating comprising a blend of a polypropylene and low density polyethylene.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: October 10, 1995
    Assignee: Felix Schoeller Jr. Papierfabriken GmbH & Co. KG
    Inventor: Ralf-Burkhard Dethlefs
  • Patent number: 5453351
    Abstract: A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a support comprising a substrate and an electron beam-cured resin layer provided on a surface of the substrate, and a hydrophilic colloid layer provided on said resin layer. The resin layer comprises an electron beam-curable composition cured by electron beam radiation and a white pigment in an amount of 20% to 70% by weight. The hydrophilic colloid layer includes at least one silver halide emulsion layer and optionally a non-light-sensitive hydrophilic colloid layer, and contains gelatin and an oil component. In the light-sensitive material, the curling degree of the support R m.sup.-1, the coating amount of the gelatin G g/m.sup.2, and the coating amount of the oil component Oi g/m.sup.2 are each -8.ltoreq.R.ltoreq.-1, 2.ltoreq.G.ltoreq.20 and 0.ltoreq.Oi.ltoreq.20, respectively, and a value Y calculated by the following equation is -3.ltoreq.Y.ltoreq.5;Y=0.9G-0.
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: September 26, 1995
    Assignee: Konica Corporation
    Inventors: Eiichi Ueda, Masahito Takada
  • Patent number: 5445882
    Abstract: The photographic paper support sheet having enhanced resistance to yellowing and satisfactory flexibility includes a front surface coating layer formed on a substrate paper sheet and having a laminate structure which includes an inside electron-beam-cured resin layer and an outermost electron-beam-cured resin layer derived from an electron-beam-curable coating liquid composition containing compounds (A) and (B) of the formulae (I) and (II). ##STR1## wherein R=--H or --CH.sub.3, a, b and c=0 or 1 to 4, a+b+c=1 to 4, a', b' and c'=0 or 1 to 8, and a'+b'+c'=5 to 8, in a weight ratio (A)/(B) of 30/70 to 90/10.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: August 29, 1995
    Assignee: New Oji Paper Co., Ltd.
    Inventors: Yasushi Kobayashi, Masahiro Kamiya, Toshifumi Fujii
  • Patent number: 5425980
    Abstract: The present invention is a polyester film base which has a surface approximately 5 nm thick. The surface of the film base has been altered to include about 6 to 15 atomic percent nitrogen in the form of imines, secondary amines and primary amines in the ratio of about 1:1:2. The invention also includes a film base whose surface includes oxygen in the form of hydroxyl, ether, epoxy, carbonyl or carboxyl groups wherein the oxygen is about 4 to 10 atomic percent above the original surface content of the base. The polyester film base can be either polyethylene terephthalate or polyethylene naphthalate.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: June 20, 1995
    Assignee: Eastman Kodak Company
    Inventors: Jeremy M. Grace, Janglin Chen, Louis J. Gerenser, David A. Glocker