Polymer Of Unsaturated Monomer Patents (Class 430/536)
  • Patent number: 6200740
    Abstract: The invention relates to an photographic element comprising a transparent polymer sheet, at least one layer of biaxially oriented polyolefin sheet and at least one image layer wherein said polymer sheet has a stiffness in any direction of between 20 and 100 millinewtons, and said biaxially oriented polyolefin sheet has a spectral transmission of at least 40% and a reflection density less than 60%.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: March 13, 2001
    Assignee: Eastman Kodak Company
    Inventors: Peter T. Aylward, Alphonse D. Camp, Robert P. Bourdelais
  • Patent number: 6197482
    Abstract: The present invention is an imaging element which includes a support, an imaging layer superposed on a side of said support and an overcoat overlying the imaging layer. The overcoat is composed of an organic polymer. The overcoat is discontinuous such that a fraction of the surface area of the imaging layer remains uncovered by said polymer, wherein the fraction of area not covered by the said polymer is from 0.02 to 0.98. The present invention is a photographic which includes a support, a silver halide emulsion layer superposed on a side of said support and an overcoat overlying the silver halide layer. The overcoat is composed of an organic polymer. The overcoat is discontinuous such that a fraction of the surface area of the silver halide emulsion layer remains uncovered by said polymer, wherein the fraction of area not covered by the said polymer is from 0.02 to 0.98. In one embodiment, the discontinuous overcoat is a series of parallel stripes.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: March 6, 2001
    Assignee: Eastman Kodak Company
    Inventors: Lloyd A. Lobo, Mridula Nair, Rukmini B. Lobo, Barry A. Fitzgerald
  • Patent number: 6197486
    Abstract: The invention relates to a reflection photographic imaging material comprising at least one silver halide layer and a base material comprising at least one extruded layer comprising a polymeric antistatic material.
    Type: Grant
    Filed: December 27, 1999
    Date of Patent: March 6, 2001
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Jehuda Greener, Thomas M. Laney
  • Patent number: 6194130
    Abstract: The present invention is a photographic element which includes a support, at least one silver halide emulsion layer superposed on the support and a processing-solution-permeable protective overcoat overlying the silver halide emulsion layer. The processing solution permeable overcoat is composed of a urethane-containing component having acid functionalities wherein a weight ratio of a polyurethane-containing component in the copolymer comprises from 20 to 100 percent and a weight ratio of an optional vinyl component in the copolymer comprises from 0 to 80 percent, which urethane-containing component of the overcoat may comprise either a single polyurethane polymer or an interpenetrating network comprising two or more polymers. The overcoat further comprises a polyvinyl alcohol polymer having a molecular weight of about 150,000 or less, with the proviso that the degree of hydrolysis is less than 95% when the molecular weight is more than about 100,000.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: February 27, 2001
    Assignee: Eastman Kodak Company
    Inventors: Mridula Nair, Tamara K. Jones, Tiecheng A. Qiao
  • 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: 6187501
    Abstract: The invention relates to an imaging member comprising a substrate, at least one oriented polymer sheet adhered to said substrate and a binder layer between said at least one oriented polymer sheet and said substrate, wherein said binder layer comprises a binder polymer that has an energy to break of between 9.0×105 J/m3 and 3.5×107 J/m3.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: February 13, 2001
    Assignee: Eastman Kodak Company
    Inventors: Peter T. Aylward, Robert P. Bourdelais, Thaddeus S. Gula
  • Patent number: 6187523
    Abstract: The invention relates to an imaging element comprising a base paper having adhered to its upper surface an integrally formed biaxially oriented polymer sheet comprising at least three layers, wherein said integrally formed biaxially oriented polymer sheet comprises at least one layer of voided polyester polymer and above said voided polyester layer an upper solid polymer layer and below said voided polyester layer a lower solid polymer layer, and at least one backside oriented polymer sheet below said base paper, and wherein said upper polymer layer comprises a white pigment.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: February 13, 2001
    Assignee: Eastman Kodak Company
    Inventors: Peter T. Aylward, Robert P. Bourdelais
  • Patent number: 6187522
    Abstract: The present invention is an imaging element having, a support, an image-forming layer superposed on the support and an outermost scratch resistant antistatic layer superposed on the support. The outermost scratch resistant antistatic layer has a thickness between 0.6 and 10 microns. The scratch resistant layer is composed of a polymer having a modulus greater than 100 MPa measured at 20° C. and a tensile elongation to break greater than 50%, a filler particle having a modulus greater than 10 GPa, and an electrically conducting polymer. The volume ratio of the polymer to the filler particle is between 70:30 and 40:60 and the electrically conducting polymer is present at a weight concentration based on a total dried weight of the scratch resistant layer of between 1 and 10 weight percent.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: February 13, 2001
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Charles C. Anderson
  • Patent number: 6187521
    Abstract: The present invention is an imaging element which includes a support, an image forming layer superposed on the support; and at least one layer superposed on the support. The at least one layer superposed on the support is formed from a non-aqueous coating composition of a composite wax particle composed of a wax phase and a non-crosslinked polymer phase and an organic solvent. The wax phase includes a wax having a melting point of greater than 30° C. The wax comprises greater than 80% by weight of the wax phase. The wax phase to non-crosslinked polymer phase ratio is greater than 30/70 and less than 90/10.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: February 13, 2001
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Janglin Chen, Dwight W. Schwark, James L. Bello
  • Patent number: 6187518
    Abstract: The present invention is a photographic element which includes a support, at least one silver halide emulsion superposed on a front side of the support and an outermost backing layer superposed on a backside of the support. The outermost backing layer is composed of a hydrophobic binder and a hydrophilic binder wherein the backing layer has an advancing water contact angle of 70 or greater and a receding water contact angle of at least 40 less than the advancing water contact angle.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: February 13, 2001
    Assignee: Eastman Kodak Company
    Inventors: Raymond T. Jones, Ravi Sharma, Alfred B. Fant
  • Patent number: 6180330
    Abstract: An imaging element comprising a reflective base and at least one gelatin containing layer said at least one layer comprising a dispersion of solid particle pigments of a particle size less than 1.0 micrometer.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: January 30, 2001
    Assignee: Eastman Kodak Company
    Inventors: Thaddeus S. Gula, Robert P. Bourdelais, John F. Sawyer, Mary Christine Brick
  • Patent number: 6177239
    Abstract: The present invention is an imaging element which includes a support, an image forming layer superposed on the support and at least one layer superposed on the support. The at least one layer is formed from a non-aqueous coating composition composed of a composite wax particle having a wax phase and a non-crosslinked polymer phase. The wax phase includes a wax having a melting point of greater than 30° C., the wax comprising greater than 80% by weight of the wax phase. The at least one layer has a dry coating weight of from 1 to 300 mg/m2.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: January 23, 2001
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Janglin Chen, Dwight W. Schwark
  • Patent number: 6174661
    Abstract: The present invention is a photographic element containing a support, at least one light sensitive emulsion layer superposed on the first side of the support, and an outermost lubricant layer superposed on the support. The outermost layer includes more than 80 percent by weight of a composite wax particle. The composite wax particle includes a wax phase and a non-crosslinked polymer phase. The wax phase is greater than 80 percent by weight of a wax which has a melting point of greater than 30° C. In one embodiment the lubricant layer contains a fluoro containing compound. It is envisioned that the lubricant layer overlies a transparent magnetic layer. The total coating weight of the composite wax particle in the lubricant layer is in the range of from 1 to 300 mg/m2. Preferably, the fluoro compound contains at least one type of an ionic group or a nonionic group.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: January 16, 2001
    Assignee: Eastman Kodak Company
    Inventors: Janglin Chen, Yongcai Wang, Gregory W. Keyes, Richard A. Castle
  • Patent number: 6172775
    Abstract: The present invention is a composition for removing scratches from photographic elements. The composition includes a solvent, an abrasive particle, a petroleum distillate, hard wax and water.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: January 9, 2001
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Jeffrey A. Trest, Alfred B. Fant
  • Patent number: 6171769
    Abstract: The present invention is a photographic element including a support with a polyolefin resin layer, which is preferably polypropylene, on each surface of the support. The photographic element includes a print or backmark retaining and spliceable antistatic layer having a dry coverage of from 10 mg/m2 to 10,000 mg/m2 on one of the free surfaces of the polyolefin layers. An imaging layer may be superimposed on the other free surface of the polyolefin layers. The antistatic layer includes a (i) conductive agent, preferably a combination of an alkali metal salt and a polymerized alkylene oxide, (ii) colloidal silica, preferably aluminum modified colloidal silica and (iii) a polymeric film-forming binder with a peel strength of 200 g or above on a polypropylene surface on which the antistatic layer of the present invention is to be formed.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: January 9, 2001
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Charles C. Anderson
  • Patent number: 6171751
    Abstract: The invention relates to a laminated base for an imaging element comprising a paper having adhered to each side a biaxially oriented sheet of polyolefin polymer, wherein the top biaxially oriented sheet on the image side has incorporated therein a stabilizing amount of hindered amine light stabilizer.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: January 9, 2001
    Assignee: Eastman Kodak Company
    Inventors: Thomas H. Mourey, Peter T. Aylward, William A. Mruk
  • Patent number: 6165700
    Abstract: The invention relates to an imaging element comprising a photographic element comprising a base, at least one color forming layer comprising at least one silver halide emulsion layer, and one dye forming coupler, wherein said base comprises a transparent polymer sheet having laminated thereto a microvoided biaxially oriented polyolefin sheet and wherein said polymer sheet has an upper surface that has a roughness of between 0.3 and 2.0 .mu.m.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: December 26, 2000
    Assignee: Eastman Kodak Company
    Inventors: Alphonse D. Camp, Peter T. Aylward, Robert P. Bourdelais
  • Patent number: 6165653
    Abstract: An overcoat composition comprising a water insoluble polymer having a Tg equal to or less than 30.degree. C. and comprising 75 to 100 weight percent of the monomer having the following formula: ##STR1## wherein: X is selected from the group consisting of Cl, F or CN, and Y is each independently selected from the group consisting of H, Cl, F, CN, CF.sub.3, CH.sub.3, C.sub.2 H.sub.5, n-C.sub.3 H.sub.7, iso-C.sub.3 H.sub.7, n-C.sub.4 H.sub.9, n-C.sub.5 H.sub.11, n-C.sub.6 H.sub.13, OCH.sub.3, OC.sub.2 H.sub.5, phenyl, C.sub.6 F.sub.5, C.sub.6 Cl.sub.5, CH.sub.2 Cl, CH.sub.2 F, C.sub.2 F.sub.5, n-C.sub.3 F.sub.7, iso-C.sub.3 F.sub.7, OCF.sub.3, OC.sub.2 F.sub.5, OC.sub.3 F.sub.7, C(CF.sub.3).sub.3, CH.sub.2 (CF.sub.3), CH(CF.sub.3).sub.2, COCF.sub.3, COC.sub.2 F.sub.5, COCH.sub.3, COC.sub.2 H.sub.
    Type: Grant
    Filed: July 15, 1999
    Date of Patent: December 26, 2000
    Assignee: Eastman Kodak Company
    Inventors: Hwei-ling Yau, Brian Thomas
  • Patent number: 6165702
    Abstract: The present invention is an imaging element which includes a support, at least one image forming layer, and a surface protective layer. The surface protective layer includes polymer particles having a mean particle size of less than 500 nm including a polymer or copolymer of an ethylenically unsaturated monomer, a water insoluble lubricant and a water soluble polymeric stabilizer coated on an outer surface of the polymer particle, and a binder. The polymeric stabilizer has affinity for both the organic solvent and the surface of the polymer particle.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: December 26, 2000
    Assignee: Eastman Kodak Company
    Inventors: Dennis E. Smith, Yongcai Wang, Charles C. Anderson
  • Patent number: 6153363
    Abstract: The present invention is a photographic element which includes a support, at least one silver-halide emulsion layer superposed on the support and a processing-solution-permeable protective overcoat overlying the silver halide emulsion layer. The processing-solution-permeable overcoat is composed of a polyurethane-containing component having acid functionalities wherein the polyurethane-containing component is an interpenetrating network further comprising at least two polymers, including at least one vinyl polymer and at least one urethane polymer. Suitably, a water-soluble polymer is also present in the overcoat. The present invention is also directed to a method of making a photographic print involving developing the photographic element in an alkaline developer solution.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: November 28, 2000
    Assignee: Eastman Kodak Company
    Inventors: Mridula Nair, Tamara K. Jones, Lloyd A. Lobo, Brian A. Schell
  • Patent number: 6153368
    Abstract: A photographic element which includes a support having a frontside and a backside, at least one silver halide emulsion layer superposed on the frontside of the support; and a protective overcoat layer superposed on the backside of the support. The protective overcoat layer is formed from a coating solution comprising a continuous liquid organic medium having therein a mixture of dispersed core/shell polymer particles and a soluble polymer. The core/shell polymer particles comprise 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 and has an acid number of from 25 to 200. The soluble polymer has an acid number of from 70 to 500 and the acid number of the soluble polymer is greater than the acid number of the shell of the core/shell polymer particles.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: November 28, 2000
    Assignee: Eastman Kodak Company
    Inventors: Dwight W. Schwark, Yongcai Wang, Charles C. Anderson
  • Patent number: 6153362
    Abstract: A photographic element containing a support; at least two contiguous layers, at least one of which is a silver halide emulsion layer superposed on a side of said support; a processing solution permeable protective overcoat containing a urethane-vinyl copolymer having acid functionalities wherein a weight ratio of a urethane component in the copolymer comprises from 20 to 100 percent and a weight ratio of a vinyl component in the copolymer comprises from 0 to 80 percent; a crosslinker for the said copolymer; and a second polymer selected from the group consisting of polyvinyl alcohol, cellulose ethers, n-vinyl amides, polyesters, poly(ethylene oxide), starch, proteins, whey, albumin, poly(acrylic acid), alginates and gums overlying the said at least two contiguous layers; and wherein the ratio of the gelatin to non-gelatin content of the dried layers immediately underlying the uppermost gelatin layer is less than 1.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: November 28, 2000
    Assignee: Eastman Kodak Company
    Inventors: Mridula Nair, Lloyd A. Lobo, Tamara K. Jones
  • Patent number: 6153367
    Abstract: The invention relates to an imaging element comprising a base consisting of an integral biaxially oriented polyolefin polymer sheet having an upper surface that binds to gelatin, a lower surface that has a matte surface, a stiffness of at least 120 millinewtons, and a thickness of greater than 160 mm.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: November 28, 2000
    Assignee: Eastman Kodak Company
    Inventors: Thaddeus S. Gula, Robert P. Bourdelais, Pang-Chia Lu, Peter T. Aylward
  • Patent number: 6153351
    Abstract: The invention relates to a photographic element comprising a paper base, at least one photosensitive silver halide layer, a layer of polymer sheet between said paper base and said silver halide layer, incorporating a thin tinted polymer layer directly below said silver halide layer.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: November 28, 2000
    Assignee: Eastman Kodak Company
    Inventors: Thaddeus S. Gula, Peter T. Aylward, Robert P. Bourdelais, Douglas N. Haydock
  • Patent number: 6132942
    Abstract: The invention relates to imaging elements comprising a back surface wherein said back surface has a low frequency roughness component having a roughness average of between 0.30 and 2.00 .mu.m when measured with a low pass cutoff filter of 500 cycles/mm and a high frequency component having a roughness average of 0.001 to 0.05 .mu.m when measured with a high pass cutoff filter of 500 cycles/mm.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: October 17, 2000
    Assignee: Eastman Kodak Company
    Inventors: Charles B. Woodworth, Thaddeus S. Gula, Robert P. Bourdelais
  • Patent number: 6130024
    Abstract: The invention relates to an imaging element comprising support having adhered to the backside a strippable polymer layer that when removed has an adhesive layer thereon.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: October 10, 2000
    Assignee: Eastman Kodak Company
    Inventors: Peter T. Aylward, Robert P. Bourdelais, Thaddeus S. Gula, Robert F. Cournoyer
  • Patent number: 6130014
    Abstract: The present invention is a coating composition comprising at least one first water insoluble polymer having a Tg equal to or less than 30.degree. C. and at least one second water insoluble polymer having a Tg equal to or greater than 60.degree. C. wherein the first polymer comprises a monomer at a weight percent of 75 to 100 of the monomer represented by the following formula 1: ##STR1## wherein: X is selected from the group consisting of --Cl, --F, or --CN, and Y is each independently selected from the group consisting of H, Cl, F, CN, CF.sub.3, CH.sub.3, C.sub.2 H.sub.5, n-C.sub.3 H.sub.7, iso-C.sub.3 H.sub.7, n-C.sub.4 H.sub.9, n-C.sub.5 H.sub.11, n-C.sub.6 H.sub.13, OCH.sub.3, OC.sub.2 H.sub.5, phenyl, C.sub.6 F.sub.5, C.sub.6 Cl.sub.5, CH.sub.2 Cl, CH.sub.2 F, Cl, F, CN, CF.sub.3, C.sub.2 F.sub.5, n-C.sub.3 F.sub.7, iso-C.sub.3 F.sub.7, OCF.sub.3, OC.sub.2 F.sub.5, OC.sub.3 F.sub.7, C(CF.sub.3).sub.3, CH.sub.2 (CF.sub.3), CH(CF.sub.3).sub.2, COCF.sub.3, COC.sub.2 F.sub.5, COCH.sub.3, COC.sub.2 H.sub.
    Type: Grant
    Filed: July 15, 1999
    Date of Patent: October 10, 2000
    Assignee: Eastman Kodak Company
    Inventors: Hwei-Ling Yau, Tienteh Chen, David E. Decker, Stephan L. Twist, Kevin M. O'Connor
  • Patent number: 6127104
    Abstract: The present invention concerns a novel film for light boxes, in particular a reversal film for light box displays comprising a transparent support covered, in order, with a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a blue-sensitive silver halide emulsion layer, the support being covered on at least one of its faces with a layer comprising an opacifying compound in a quantity such that the minimum density of the film is between 0.2 and 0.6. This film also has compatibility with existing processing methods intended for reversal photographic products.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: October 3, 2000
    Assignee: Eastman Kodak Company
    Inventors: Gerard M. Droin, Yannick Begel, Didier M. Chigot
  • Patent number: 6127106
    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 backside 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 machine readable indicia on the surface of said sheet between said base paper and said polymer sheet.
    Type: Grant
    Filed: December 24, 1997
    Date of Patent: October 3, 2000
    Assignee: Eastman Kodak Company
    Inventors: Douglas N. Haydock, Thaddeus S. Gula, Peter T. Aylward, Robert P. Bourdelais
  • Patent number: 6120979
    Abstract: The present invention is a photographic element including a substrate with a polyolefin resin layer, which is preferably polypropylene, on each surface of the substrate. At least one of these polyolefin surfaces is coated with an adhesion promoting primer layer having a dry coverage of from 0.5 mg/m.sup.2 to 1000 mg/m.sup.2, wherein the primer comprises an interpolymer of a primary amine addition salt.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: September 19, 2000
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Charles C. Anderson, Richard A. Castle
  • Patent number: 6114102
    Abstract: This invention provides an imaging element comprising paper and a biaxially oriented polyolefin sheet adhered to the upper side of said paper, wherein between the paper and the upper surface layer of said biaxially oriented polyolefin sheet, there is located at least one oxygen barrier layer having less than 8.0 cc/m.sup.2. hr. atm. oxygen transmission rate.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: September 5, 2000
    Assignee: Eastman Kodak Company
    Inventors: Peter T. Aylward, Ann P. Newberry, John F. Sawyer, Dennis E. McGee, Lyle J. Harley
  • Patent number: 6114078
    Abstract: The invention relates to an imaging element comprising a laminated base comprising a layer of biaxially oriented film sheet adhered to the top surface of a base wherein said laminated base has a surface roughness average of between about 0.5 to 2.5 .mu.
    Type: Grant
    Filed: December 24, 1997
    Date of Patent: September 5, 2000
    Assignee: Eastman Kodak Company
    Inventors: Peter T. Aylward, Robert P. Bourdelais, Douglas N. Haydock, Thaddeus S. Gula
  • Patent number: 6107014
    Abstract: The invention relates to a imaging element comprising a paper having a surface roughness average of between 0.13 and 0.44 micrometers.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: August 22, 2000
    Assignee: Eastman Kodak Company
    Inventors: Sandra J. Dagan, Thaddeus S. Gula, Robert P. Bourdelais, Peter T. Aylward
  • Patent number: 6100022
    Abstract: In a photothermographic element comprising a non-photosensitive silver salt, a photosensitive silver halide, and a binder on a support, a latex of a polymer having a Tg of -30.degree. C. to 40.degree. C. constitutes at least 50% by weight of the binder in an image forming layer containing the silver halide, and the image forming layer or a layer disposed adjacent thereto or both contain a nucleating agent. The element on the image forming layer side has a film surface pH of 5.0-7.0. The element produces a low fog, ultrahigh contrast image and maintains ultrahigh contrast characteristics with a wide latitude under varying development conditions.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: August 8, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuaki Inoue, Takahiro Goto
  • Patent number: 6096490
    Abstract: A silver halide light sensitive color photographic material is disclosed, comprising a reflective support having on one side of the support a hydrophilic colloid layer containing a white pigment and one or more silver halide emulsion layers, wherein at least one of the silver halide emulsion layers contains a silver halide emulsion having a spectral sensitivity maximum at a wavelength of 730 nm or more, and an average primary particle size of the white pigment being 0.30 .mu.m or more.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: August 1, 2000
    Assignee: Konica Corporation
    Inventors: Yasuo Tosaka, Yoshiyuki Nonaka
  • Patent number: 6087079
    Abstract: The invention relates to a photographic element comprising a method of laminating paper and biaxially oriented polyolefin sheets comprising providing a biaxially oriented polyolefin sheet and a paper, bringing said sheet and paper together and simultaneously applying at least 2 layers of adhesive between said paper and said sheet, the layer of adhesive adjacent to said paper comprises an adhesive that has a 300 grams per 5 cm peel strength to said paper, and the layer of adhesive adjacent to said biaxially oriented sheet comprises an adhesive that has a 300 grams per 5 cm peel strength to the biaxially oriented sheet.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: July 11, 2000
    Assignee: Eastman Kodak Company
    Inventors: Ann P. Newberry, Peter T. Aylward, Robert P. Bourdelais
  • Patent number: 6087081
    Abstract: Latex polymer of fine particles having a heterogeneous phase structure which comprises a core of a polymer having repeating units derived from a conjugated diene monomer and a shell of a polymer having repeating units derived from at least one ethylenically unsaturated monomer carrying an active methylene group; a silver halide photographic light-sensitive material comprises a core/shell latex polymer whose shell consists of a polymer having repeating units of an ethylenically unsaturated monomer represented by the formula: CH.sub.2 .dbd.C(R.sup.1)--L--X (wherein R.sup.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: July 11, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Junichi Yamanouchi, Hidetoshi Watanabe, Kunio Ishigaki, Seiichi Yamamoto, Kouta Fukui
  • Patent number: 6087083
    Abstract: A colour photographic material in which a package of layers is provided which consists, in the stated sequence, of (a) a silver halide-free layer containing colour coupler, (b) a layer containing silver halide and (c) a silver halide-free layer containing colour coupler, wherein at least one of layers (a) and (c) consists to an extent of at least 20 vol. % of a synthetic polymer, is distinguished by an improved grain/sensitivity ratio.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: July 11, 2000
    Assignee: Asfa-Gevaert N.V.
    Inventors: Peter Bell, Ralf Buscher, Lothar Endres, Lothar Rosenhahn, Rainer Scheerer, Lydia Simon, Thomas Stetzer
  • Patent number: 6080534
    Abstract: The invention relates to an imaging element comprising a substrate having at least two polymer layers on the side bearing an imaging layer wherein at least one of said layers has incorporated therein a stabilizing amount of hindered amine.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: June 27, 2000
    Assignee: Eastman Kodak Company
    Inventors: Peter T. Aylward, Valerie J. Harris, Thaddeus S. Gula
  • Patent number: 6080532
    Abstract: The invention relates to a photographic element comprising a transparent polymer sheet, at least one image layer on the topside and one image layer on the bottom side wherein said polymer sheet has a stiffness of between 20 and 100 millinewtons, and said photographic element has a spectral transmission of at least 90% and a reflection density less than 10%.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: June 27, 2000
    Assignee: Eastman Kodak Company
    Inventors: Alphonse D. Camp, Peter T. Aylward, Robert P. Bourdelais
  • Patent number: 6077656
    Abstract: The present invention is a photographic element including a substrate with a polyolefin resin layer, which is preferably polypropylene, on each surface of the said substrate. The photographic paper includes a print or backmark retaining and spliceable antistatic layer having a dry coverage of from 10 mg/m.sup.2 to 10,000 mg/m.sup.2 on one of the free surfaces of the polyolefin layers. An imaging layer may be superimposed on the other free surface of the polyolefin layers. The antistatic layer includes a (i) conductive agent, preferably a combination of an alkali metal salt and a polymerized alkylene oxide, (ii) a positively charged colloidal oxide sol and (iii) a film forming binder which is an interpolymer of a primary amine addition salt with a peel strength of 200 g or above on the polyolefin surface on which the antistatic layer of the present invention is to be formed. The antistatic layer is expected to provide surface electrical resistivity of less than 12 log .OMEGA.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: June 20, 2000
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Charles C. Anderson, Richard A. Castle
  • Patent number: 6077648
    Abstract: The present invention is a photographic element which includes a support, at least one silver halide emulsion layer superposed on the support and a processing solution permeable protective overcoat overlying the silver halide emulsion layer. The processing solution permeable overcoat is composed of a urethane-vinyl copolymer having acid functionalities wherein a weight ratio of the urethane in the copolymer comprises from 20 to 100 percent and a weight ratio of the vinyl in the copolymer comprises from 0 to 80 percent. The present invention is a method of making a photographic element which includes providing an photographic element having a support, a silver halide emulsion layer superposed on the support and a processing solution permeable protective overcoat overlying the silver halide emulsion layer.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: June 20, 2000
    Assignee: Eastman Kodak Company
    Inventors: Mridula Nair, Tamara K. Jones, Lloyd A. Lobo, Brian A. Schell
  • Patent number: 6077655
    Abstract: The present invention is an imaging element which includes a support, an image-forming layer superposed on the support and an electrically-conductive layer superposed on the support. The electrically-conductive layer contains a modified gelatin binder and an electrically-conductive polymer. The modified gelatin is a graft copolymer of gelatin and a vinyl polymer having acid functionality.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: June 20, 2000
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Charles C. Anderson, Robert J. Kress
  • Patent number: 6071682
    Abstract: The present invention is photographic film base which includes a polymeric support having a first side and a second side and a glass transition temperature (Tg.sub.s). A polymeric layer is superposed on the first side of the polymeric support, the polymer layer having a glass transition temperature Tg.sub.L which is greater than the glass transition temperature of the support Tg.sub.s. The polymeric layer has a thickness of at least 2.5 percent of the thickness of the support.
    Type: Grant
    Filed: October 9, 1997
    Date of Patent: June 6, 2000
    Assignee: Eastman Kodak Company
    Inventors: Jehuda Greener, Paul D. Yacobucci, Beverly A. Contestable, Catherine A. Falkner
  • Patent number: 6071654
    Abstract: The invention relates to a photographic element comprising a translucent base and a color forming layer comprising at least one silver halide emulsion layer and dye forming coupler, wherein said base comprises at least one polymer sheet comprising a transparent polymer sheet containing voids, with the proviso that said translucent sheet is substantially free of white light reflecting pigments and wherein said translucent sheet has a light transmission of between 15% and 85%.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: June 6, 2000
    Assignee: Eastman Kodak Company
    Inventors: Alphonse D. Camp, Peter T. Aylward, Robert P. Bourdelais
  • Patent number: 6068957
    Abstract: The present invention is an imaging element which includes a support, at least one imaging layer superposed on the support and a protective topcoat superposed farthest from the support. The topcoat includes a binder and lubricant droplets. The lubricant droplets are composed of a lubricant and a water soluble polymer containing heterocyclic aromatic nitrogen groups wherein the droplets are surrounded by a particulate stabilizer. The present invention is also directed to the lubricant droplets.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: May 30, 2000
    Assignee: Eastman Kodak Company
    Inventors: Mridula Nair, Tamara K. Osburn, Louis J. Sorriero
  • Patent number: 6063552
    Abstract: The invention relates to a photographic element comprising a transparent polymer sheet, at least one layer of biaxially oriented polyolefin sheet and at least one image layer wherein said polymer sheet has a stiffness of between 20 and 100 millinewtons, and said biaxially oriented polyolefin sheet has a spectral transmission of at least 90% and a reflection density less than 10%.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: May 16, 2000
    Assignee: Eastman Kodak Company
    Inventors: Robert P. Bourdelais, Alphonse D. Camp, Peter T. Aylward
  • Patent number: 6054249
    Abstract: A photosensitive resin laminate comprising at least a support, a photosensitive resin layer, a tackiness preventive layer and a cover film successively laminated, said tackiness preventive layer having a water content of not less than 4 wt % under a relative humidity (RH) of 30-80%. During the production of such photosensitive resin laminate, a water content of the tackiness preventive layer of not less than 4% has been achieved by adding a water retention agent to the tackiness preventive layer or allowing presence of water on the cover film (preferably by directly spraying water onto the cover film or placing a water-containing sheet on the cover film), as a result of which the tackiness preventive layer thereof is free of occurrence of wrinkles during any handling step and under any environment.
    Type: Grant
    Filed: July 18, 1997
    Date of Patent: April 25, 2000
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Shigenori Nagahara, Toshihiko Kajima, Hiroyuki Hamada
  • Patent number: 6048678
    Abstract: The present invention is an imaging element which contains a support, an image forming layer superposed on the support and an outermost protective layer superposed on the support. The protective layer is a cellulosic material and a composite wax particle. The wax particle is composed of a wax phase and a non-crosslinked polymer phase. The wax phase includes a wax having a melting point of greater than 30.degree. C. The non-crosslinked polymer phase contains from 10% to 80% by weight of a mono-alpha, beta-ethylenically unsaturated monomer capable of addition polymerization to form a water soluble homopolymer. In a preferred embodiment the protective layer overlies an antistatic layer.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: April 11, 2000
    Assignee: Eastman Kodak Company
    Inventors: Dwight W. Schwark, Yongcai Wang, Robert J. Kress
  • Patent number: 6048677
    Abstract: The present invention is a photographic element which includes a support having a first side and a second side, at least one light sensitive emulsion layer superposed on the first side of the support, a transparent magnetic layer superposed on the second side of the support. The transparent magnetic layer includes magnetic particles and a film forming binder. An outermost abrasive lubricant layer overlies the transparent magnetic layer. The outermost abrasive lubricant layer is formed from a non-aqueous coating composition of a composite wax particle, an abrasive particle and an organic solvent. The composite wax particle is composed of a wax phase having a wax having a melting point of greater than 30.degree. C. the wax being greater than 80% by weight of the wax phase and a non-crosslinked polymer phase free of chemically bonded acid groups.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: April 11, 2000
    Assignee: Eastman Kodak Company
    Inventors: Janglin Chen, Yongcai Wang, Vito A. DePalma, Robert O. James