Element Or Image Receiving Layers For Silver Salt Or Silver Complex Transfer Patents (Class 430/227)
  • Patent number: 10566105
    Abstract: Disclosed is an organic electronic material comprising charge transporting compounds and ionic compounds having electron-accepting properties and high solubility in a solvent. The organic electronic material is characterized by comprising charge transporting compounds and ionic compounds, and in that at least one of the ionic compounds is any one kind of compounds represented by general formulas (1b)-(3b). (In the formulas Y1-Y6 each independently represent a divalent linking group, R1-R6 each independently represent an electron-attracting organic substituent (these structures can further have substituents and hetero-atoms, and R1, R2 and R3, or, R4-R6 can respectively combine and become a ring shape or a polymer shape) and L+ represents a monovalent cation.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: February 18, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Kenichi Ishitsuka, Shigeaki Funyuu, Yousuke Hoshi
  • Patent number: 7387824
    Abstract: A support for an image recording medium includes base paper, a polymer coating layer formed on both top and wire side surfaces, and a coating layer containing a pigment and an adhesive agent which is formed under the polymer coating layer on one or both side surfaces. The support has a water absorbence less than 20 mg in terms of cross section water absorption quantity given by the following expression: Cross section water absorption quantity (mg)=A?B where A is the mass of a 10×1.5 cm support after wiping off attached water after five minute immersion in a water bath at 20° C. and B is the mass of the paper base support before immersion.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: June 17, 2008
    Assignee: Fujifilm Corporation
    Inventors: Shigehisa Tamagawa, Hiroshi Yamamoto, Shinichi Teramae
  • Patent number: 6946232
    Abstract: An image-receiving element for use in photographic and photothermographic diffusion transfer film units of the type where the image-receiving element is designed to be removed, or “peeled-apart” from a photosensitive element following exposure and photographic processing. The present image-receiving element comprises, in sequence, a support, an image-receiving layer and a strip-coat layer which serves to facilitate separation of the image-receiving element from the photosensitive element after photographic processing. The strip-coat layer comprises an anion of poly(acrylic acid), or a salt thereof, complexed with a cationic quaternary salt. In a preferred embodiment, the strip coat layer may include an ethoxylated alcohol.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: September 20, 2005
    Assignee: Polaroid Corporation
    Inventors: Gerard Gomes, Gary S. LaPointe, James J. Manning
  • Patent number: 6579656
    Abstract: A photographic film with a polymeric acid-reacting neutralizing layer comprising a half ester of isobutylene/maleic anhydride copolymer is provided herein. This polymeric acid-reacting neutralizing layer is used to attenuate a photographic film's development process, which is effective under alkali conditions, by lowering the pH of the alkaline processing composition.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: June 17, 2003
    Assignee: Polaroid Corporation
    Inventors: Agota F. Fehervari, William L. Grimm
  • Patent number: 6541177
    Abstract: A self-developing diffusion transfer photographic film unit which includes a latent image which becomes visible upon photographic processing of the film unit. The latent image is formed with a chemical compound such as an indicator dye and the visible image formed from the latent image as a result of photographic processing may be transient or permanent. Also described are diffusion transfer photographic methods.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: April 1, 2003
    Assignee: Polaroid Corporatiion
    Inventors: James A. Foley, Michael P. Filosa, Stephen J. Telfer, John L. Marshall, David P. Waller
  • Publication number: 20030054267
    Abstract: A self-developing diffusion transfer photographic film unit which includes a latent image which becomes visible upon photographic processing of the film unit. The latent image is formed with a chemical compound such as an indicator dye and the visible image formed from the latent image as a result of photographic processing may be transient or permanent. Also described are diffusion transfer photographic methods.
    Type: Application
    Filed: April 16, 2001
    Publication date: March 20, 2003
    Inventors: James A. Foley, Michael P. Filosa, Stephen J. Telfer, John L. Marshall, David P. Waller
  • Patent number: 6468709
    Abstract: The invention relates to an element consisting essentially of a photographic element comprising a base material having an upper surface comprising an oriented sheet, at least one photosensitive silver halide layer, and at least one sharpness enhancing agent above said photosensitive silver halide layer.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: October 22, 2002
    Assignee: Eastman Kodak Company
    Inventors: Peter T. Aylward, Alphonse D. Camp, Robert P. Bourdelais, Gary J. Mcsweeney
  • Patent number: 6420081
    Abstract: The invention relates to a process for the production of a photosensitive recording material for the production of offset printing plates which comprises a dimensionally stable, two-dimensional support of a metal or metal alloy and a silver halide-containing, photosensitive layer on the front of the support and a layer which essentially consists of an organic polymeric material and is resistant to processing chemicals on the back of the support. The layer on the back of the support is applied before the photosensitive coating on the front. The invention furthermore relates to a corresponding recording material in which the layer on the back comprises at least one organic polymer having a glass transition temperature Tg of 50° C. or above. Due to the back coating, the formation of local elements between the metallic support and the silver-containing layer is reliably prevented when the recording materials are stacked.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: July 16, 2002
    Assignee: AGFA-Gevaert
    Inventors: Andreas Elsässer, Michael Dörr, Steffen Denzinger, Paul Coppens
  • Patent number: 6403278
    Abstract: An image-receiving element for use in photographic and photothermographic dirrufsion transfer film units of the type where the image-receiving element is designed to be removed, or “peeled-apart” from a photosensitive element following exposure and photographic processing. The present image-receiving element comprises, in sequence, a support, an image-receiving layer and a strip-coat layer which serves to facilitate separation of the image-receiving element from the photosensitive element after photographic processing. The strip-coat layer comprises a cationic homopolymer or a copolymer of an acrylate with a quarternary salt functional group. The strip coat provides a glossy image after photographic processing.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: June 11, 2002
    Assignee: Polaroid Corporation
    Inventors: Agota F. Fehervari, James J. Manning
  • Publication number: 20020028403
    Abstract: The invention relates to a process for the production of a photosensitive recording material for the production of offset printing plates which comprises a dimensionally stable, two-dimensional support of a metal or metal alloy and a silver halide-containing, photosensitive layer on the front of the support and a layer which essentially consists of an organic polymeric material and is resistant to processing chemicals on the back of the support. The layer on the back of the support is applied before the photosensitive coating on the front. The invention furthermore relates to a corresponding recording material in which the layer on the back comprises at least one organic polymer having a glass transition temperature Tg of 50° C. or above. Due to the back coating, the formation of local elements between the metallic support and the silver-containing layer is reliably prevented when the recording materials are stacked.
    Type: Application
    Filed: April 26, 2001
    Publication date: March 7, 2002
    Inventors: Andreas Elsasser, Michael Dorr, Steffen Denzinger, Paul Coppens
  • Patent number: 6342331
    Abstract: The invention relates to a diffusion transfer type film unit which can produce the same two picture prints at one shot of photographing. The film unit comprises a first sheet and a second sheet. The first sheet includes at least transparent sheet through which exposure is made. The second sheet includes at least photosensitive layer. In one embodiment, two dye image receiving layers are disposed on the first and second sheets separately and a peeling-off layer is disposed between the photosensitive layer and a dye image receiving layer on the second sheet. In another embodiment, two dye image receiving layers are disposed on the same second sheet and a peeling-off layer is disposed therebetween. In both embodiments, the second sheet is capable of being separated into two parts at the interface of the dye image receiving layer and the peeling-off layer. After development, respective picture images on the two dye image receiving layers can be viewed by separating the second sheet into two parts.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: January 29, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Nakao Oi
  • Patent number: 6303262
    Abstract: Disclosed are a photomask material for preparing a photomask having excellent heat resistance, ultraviolet resistance and image strength, a photomask having the above properties and methods for the production thereof, and the present invention provides a photomask material, which comprises a glass substrate, a physical development nucleus layer and a photosensitive layer containing silver halide, the layers being consecutively formed on the transparent substrate, and a method for the production thereof, and a photomask, which comprises a transparent substrate, a physical development nucleus layer and a light shielding film formed of a predetermined pattern of a silver film derived from silver halide, the silver film being formed by the action of the physical development nucleus in said layer during development treatment, the physical development nucleus layer and the light shielding film being consecutively formed on the transparent substrate, and a method for the production thereof.
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: October 16, 2001
    Assignee: Mitsubishi Paper Mills Ltd.
    Inventors: Kazuchiyo Takaoka, Noriyuki Kawai, Kenji Hyodo
  • Patent number: 6261733
    Abstract: According to the present invention, there is provided a silver salt diffusion transfer material, comprising on a hydrophilic surface of a support in the order given (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion being in water permeable relationship with said image receiving layer and (iii) a top layer containing gelatin, said silver halide emulsion being spectrally sensitized with a dye with a sensitizing maximum between 380 and 430 nm, characterized in that said top layer comprises a compound I and/or a compound II
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: July 17, 2001
    Assignee: Agfa-Gevaert
    Inventors: Paul Coppens, Ludo Vervloet, Paul Callant
  • Publication number: 20010003029
    Abstract: The invention relates to a diffusion transfer type film unit which can produce the same two picture prints at one shot of photographing. The film unit comprises a first sheet and a second sheet. The first sheet includes at least transparent sheet through which exposure is made. The second sheet includes at least photosensitive layer.
    Type: Application
    Filed: December 6, 2000
    Publication date: June 7, 2001
    Inventor: Nakao Oi
  • Patent number: 6221554
    Abstract: There is described a self-developing film unit which has a photosensitive member and an image-receiving member and wherein one outermost surface of the film unit comprises a support layer carrying a layer of a releasable material and a layer of an adhesive material. After an image is formed in the film unit by photoexposure of the photosensitive element and photographic processing of the exposed photosensitive element, the support and releasable material layer can be removed and the film unit or the image-receiving element, as the case may be, adhered to a surface for viewing of the image.
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: April 24, 2001
    Assignee: Polaroid Corporation
    Inventors: Philip R. Norris, Harry R. Parsons, William T. Plummer, Donald W. Preissler, Robert J. Wadja
  • Patent number: 6187503
    Abstract: There is disclosed a lithographic printing plate which comprises a grained and anodized aluminum support, a silver halide emulsion layer and a physical development nuclei layer between the aluminum support and the silver halide emulsion layer, and at least one selected from the group consisting of a phosphoric acid compound having a polyoxyalkylene unit and a water-soluble vinyl polymer having a carboxylic acid ester group being contained between the aluminum support and the silver halide emulsion layer.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: February 13, 2001
    Assignee: Mitsubishi Paper Mills Limited
    Inventor: Yoshihito Ohashi
  • Patent number: 6146819
    Abstract: There is disclosed a silver halide photographic light-sensitive material which comprises a polyester film support, at least one subbing layer containing a self-emulsifiable isocyanate compound having an ethylene oxide recurring unit and two or more isocyanate groups on the support, and at least one silver halide emulsion layer provided on said subbing layer.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: November 14, 2000
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Akira Furukawa, Daichi Miyake
  • Patent number: 6146808
    Abstract: According to the present invention there is provided a method for preparing a silver salt diffusion transfer imaging element comprising the steps of coating in the order given on a grained and anodized side of an aluminum support (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion being in water permeable relationship with said image receiving layer and (iii) optionally an antistress layer being in water permeable relationship with said image receiving layer, characterized in that said element before and/or after being coated with said image-receiving layer and before being coated with another layer is wetted with a fluidum with a conductivity of at least 1 .mu.S/cm at 25.degree. C. and then the wetted element is brought in contact with an earthed discharging means and dried before coating the following layer.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: November 14, 2000
    Assignee: AGFA-Gevaert, N.V.
    Inventor: Marcus Jonkheere
  • Patent number: 6146807
    Abstract: According to the present invention there is provided a method for preparing a silver salt diffusion transfer imaging element comprising the steps of coating in the order given on a grained and anodized side of an aluminum support (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion in water permeable relationship with said image receiving layer and (iii) optionally an antistress layer in water permeable relationship with said image receiving layer, characterized in that said aluminum support, provided with said image receiving layer, is kept at a relative humidity of at least 45% in an area of a machine, the said area being ahead of a coating head used for coating said photosensitive layer.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: November 14, 2000
    Assignee: Agfa-Gevaert, N.V.
    Inventor: Marcus Jonkheere
  • Patent number: 6136496
    Abstract: According to the present invention there is provided an imaging element comprising in the order given on a grained and anodized side of an aluminum support (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion in water permeable relationship with said image receiving layer and (iii) optionally an antistress layer in water permeable relationship with said image receiving layer, characterized in that underlying the photosensitive layer there is a layer comprising at least 10 mg/m.sup.2 of a copolymer containing at least 1 mole % of tetraallyloxyethane.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: October 24, 2000
    Assignee: Agfa-Gevaert, N.V.
    Inventor: Marcus Jonkheere
  • Patent number: 6120971
    Abstract: There is disclosed an aluminum lithographic printing plate material which comprises an aluminum substrate, a silver halide emulsion layer and a physical development nuclei layer between the aluminum substrate and the silver halide emulsion layer, said silver halide emulsion layer contains photographic gelatin and gelatin having a weight average molecular weight of about 50,000 or less is contained in said silver halide emulsion layer and/or under said layer.
    Type: Grant
    Filed: July 27, 1998
    Date of Patent: September 19, 2000
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Motozo Yamano, Kunihiro Nakagawa, Toshiro Kondo
  • Patent number: 6027851
    Abstract: According to the present invention there is provided a method for preparing a silver complex diffusion transfer reversal material comprising a grained and anodized aluminum foil as support and a photosensitive silver halide emulsion coating, characterized in that said grained and anodized aluminum foil is corona treated in a corona station comprising a roller and at least one electrode, that has been coated with a dielectric coating before said foil is coated by a photosensitive layer.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: February 22, 2000
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Paul Coppens, Marcus Jonckheere
  • Patent number: 6017673
    Abstract: A lithographic printing plate that works according to the silver salt diffusion transfer reversal process is disclosed. The lithographic properties of said plate can be improved by incorporating a hydrophilic amphoteric block copolymer, comprising a non-ionic block of acrylic units with pendant nitrile groups and an acrylamid(in)e block which comprises units with pendant basic and acidic groups. The hydrophilic amphoteric block copolymer is preferentially present in the image receiving layer of the lithographic printing plate. In an alternative embodiment, said block copolymer may be present in a treating solution used for processing said plate or applied onto said plate while printing. The hydrophilicity of the printing plate's surface is improved without deteriorating the ink-acceptance in the printing areas.
    Type: Grant
    Filed: April 1, 1998
    Date of Patent: January 25, 2000
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Luc Vanmaele, Lode Deprez, Frank Louwet
  • Patent number: 6004718
    Abstract: A transfer material colored to a predetermined color is used when images are formed on a transfer material for use in thermal transfer comprising a substrate and a dye receiving layer by a thermal transfer process.When images are formed by an optional image forming method such as silver salt photographic process, ink jet process or thermal transfer process, a transfer material having sepia tone is used in each of the image forming processes thereby forming sepia tone images. Images having unique appearance can be formed easily upon forming images by a thermal transfer process. Images of sepia tone can be formed safely and conveniently.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: December 21, 1999
    Assignee: Sony Corporation
    Inventor: Satoru Shinohara
  • Patent number: 5968707
    Abstract: A transfer material colored to a predetermined color is used when images are formed on a transfer material for use in thermal transfer comprising a substrate and a dye receiving layer by a thermal transfer process.When images are formed by an optional image forming method such as silver salt photographic process, ink jet process or thermal transfer process, a transfer material having sepia tone is used in each of the image forming processes thereby forming sepia tone images. Images having unique appearance can be formed easily upon forming images by a thermal transfer process. Images of sepia tone can be formed safely and conveniently.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: October 19, 1999
    Assignee: Sony Corporation
    Inventor: Satoru Shinohara
  • Patent number: 5955239
    Abstract: The invention relates to a photographic element comprising a paper base, at least one photosensitive silver halide layer, a layer of biaxially oriented polyolefin sheet between said paper base and said silver halide layer, wherein there is located between said biaxially oriented polyolefin sheet and said base paper a layer of strippable material comprising a material that has a peel strength of between about 30 and 150 g/5 cm.
    Type: Grant
    Filed: December 24, 1997
    Date of Patent: September 21, 1999
    Assignee: Eastman Kodak Company
    Inventors: Douglas N. Haydock, Thaddeus S. Gula, Peter T. Aylward, Robert P. Bourdelais
  • Patent number: 5871879
    Abstract: According to the present invention an element comprising a layer on a glass support characterised in that: (i) the thickness of said glass support is less than 1.2 mm, (ii) said glass support has a failure stress (under tensile stress) equal to or higher than 5.times.10.sup.7 Pa and (iii) the sides in the longitudinal direction have a rounded border with a radius in the order of magnitude of half of the thickness of the glass support.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: February 16, 1999
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Bartholomeus Verlinden, Pascale Steenhoudt
  • Patent number: 5869217
    Abstract: A silver halide photographic material which has a layer containing a swellable inorganic stratifying compound.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: February 9, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Toshiaki Aono
  • Patent number: 5858608
    Abstract: There are described diffusion transfer photosensitive film units which include a novel antihalation layer comprising an antihalation material, titanium dioxide and a binder. Diffusion transfer film units prepared according to the invention provide silver images of enhanced resolution, film speed and sharpness.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: January 12, 1999
    Assignee: Polaroid Corporation
    Inventors: Barry B. Corden, Fredric N. Cramer, Paul E. Nangeroni
  • 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: 5851720
    Abstract: A transfer material colored to a predetermined color is used when images are formed on a transfer material for use in thermal transfer comprising a substrate and a dye receiving layer by a thermal transfer process.When images are formed by an optional image forming method such as silver salt photographic process, ink jet process or thermal transfer process, a transfer material having sepia tone is used in each of the image forming processes thereby forming sepia tone images. Images having unique appearance can be formed easily upon forming images by a thermal transfer process. Images of sepia tone can be formed safely and conveniently.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: December 22, 1998
    Assignee: Sony Corporation
    Inventor: Satoru Shinohara
  • Patent number: 5851722
    Abstract: The present invention provides an imaging element comprising in the order given on a hydrophilic base (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion being in water permeable relationship with said image receiving layer and (iii) an antistress layer being in water permeable relationship with said image receiving layer and comprising gelatin, characterized in that said antistress layer comprises at least 30 mg/m.sup.2 of a matting agent with a weight average diameter of at least 3 .mu.m.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: December 22, 1998
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Paul Coppens, Guido Hauquier, Eric Verschueren, Eric Hoes
  • Patent number: 5811216
    Abstract: The present invention provides an imaging element comprising in the order given on a hydrophilic surface of a support (i) an image receiving layer containing physical development nuclei, (ii) an intermediate layer and (iii) a photosensitive layer containing one or more silver halide emulsions being in water permeable relationship with said image receiving layer, characterized in that said intermediate layer comprises at least 0.08 mmole/m.sup.2 of a bromide salt.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: September 22, 1998
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Paul Coppens, Ludo Vervloet
  • Patent number: 5800961
    Abstract: The present invention provides an imaging element comprising on a support in the order given (i) a base layer comprising a binder in an amount between 1 and 4 g/m.sup.2, (ii) a photosensitive layer comprising a spectrally sensitised silver halide emulsion, and (iii) a receiving layer containing physical development nuclei in water permeable relationship with said photosensitive layer, characterized in that the base layer contains a latex polymer or copolymer with a glass transition temperature Tg not higher than 40.degree. C.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: September 1, 1998
    Assignee: Agfa-Gevaert, N.V.
    Inventor: Lode Deprez
  • Patent number: 5795697
    Abstract: The present invention provides an imaging element comprising in the order given on a hydrophilic surface of a support (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion being in water permeable relationship with said image receiving layer (iii) a first antistress layer and (iv) a second antistress layer, said antistress layers being in water permeable relationship with said image receiving layer and each independently comprising unhardened gelatin, characterized in that said second antistress layer comprises at least 30 mg/m.sup.2 of a matting agent with a weight average diameter of more than 3 .mu.m.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: August 18, 1998
    Assignee: AGFA-Gevart, N.V.
    Inventors: Paul Coppens, Eric Hoes
  • Patent number: 5756253
    Abstract: There are described novel photographic processing compositions, film units and processes for use in diffusion transfer photographic systems. More particularly, there is described a method for forming a diffusion transfer image photographic processing of diffusion transfer photographic film units in the presence of hypoxanthine and inosine. Diffusion transfer photographic systems utilizing the novel photographic element or method of the present invention exhibit substantially fewer, if any, crystals on the final image of the finished photograph post-processing.
    Type: Grant
    Filed: July 9, 1997
    Date of Patent: May 26, 1998
    Assignee: Polaroid Corporation
    Inventors: Robert D. Eckert, Michael P. Filosa, Gerard Gomes, Anthony R. Layne, Marlene C. Schwarz, Lloyd D. Taylor
  • Patent number: 5747219
    Abstract: There are described novel image-receiving elements for use in diffusion transfer photographic systems. The novel image-receiving elements include a layer capable of reducing the light-absorbing capacity of an optical filter agent. The layer comprises nonylphenoxypolyoxyethylene and polyoxyethylene stearate.Diffusion transfer photographic systems utilizing the novel image-receiving elements of the present invention exhibit substantial clearing of optical filter agents during about the first five minutes of photographic processing, enabling the viewing of the emerging image against a whiter, brighter background, and show substantially diminished haze in the film coatings.
    Type: Grant
    Filed: July 9, 1997
    Date of Patent: May 5, 1998
    Assignee: Polaroid Corporation
    Inventors: Robert L. Febonio, James A. Foley
  • Patent number: 5712076
    Abstract: The present invention provides an imaging element comprising in the order given on a hydrophilic surface of a support (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing one or more silver halide emulsions being in water permeable relationship with said image receiving layer, characterized in that said one or more silver halide emulsions comprise substantially no silver bromide and that said imaging element comprises on top of said photosensitive layer an antistress layer, being in water permeable relationship with said photosensitive layer and comprising an unhardened gelatin in an amount ranging from 0.60 to 1.75 g/m.sup.2.
    Type: Grant
    Filed: October 29, 1996
    Date of Patent: January 27, 1998
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Paul Coppens, Bartholomeus Van Der Linden, Rene De Keyzer
  • Patent number: 5698367
    Abstract: Disclosed is a lithographic printing plate having a silver halide emulsion layer and a layer containing physical development nuclei on a support, the improvement wherein a water-soluble polymer having a structural unit represented by the formula (I): ##STR1## wherein R.sup.1 represents H or alkyl; Q represents divalent linking group; R.sup.2 represents divalent linking group or direct bond; and A represents a functional group represented by the formula: --S--C(.dbd.N--R.sup.4)--NH--R.sup.3, --Z--X(.dbd.Y)--(R.sup.5).sub.m or --W--(SH).sub.n where respective substituents are defined in the specification is contained in the layer containing physical development nuclei.
    Type: Grant
    Filed: December 7, 1995
    Date of Patent: December 16, 1997
    Assignee: Mitsubishi Paper Mills, Limited
    Inventors: Akira Furukawa, Motozo Yamano, Satoshi Shimonodan
  • Patent number: 5695916
    Abstract: A thickened processing solution containing inert particles can be used in lamination processing to insure even processing.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: December 9, 1997
    Assignee: Eastman Kodak Company
    Inventor: John Richard Fyson
  • Patent number: 5672461
    Abstract: The present invention provides an imaging element comprising in the order given on a hydrophilic surface of a support (i) an image receiving layer containing physical development nuclei and (ii) a photosensitive layer containing a silver halide emulsion being in water permeable relationship with said image receiving layer, characterized in that said photosensitive layer comprises a substituted or unsubstituted 1-phenyl-3-pyrazolidone in an amount between 0.2 mg/g and 15 mg/g of silver halide expressed as an equivalent amount of silver nitrate.
    Type: Grant
    Filed: May 29, 1996
    Date of Patent: September 30, 1997
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Paul Coppens, Eric Hoes, Jules Berendsen, Rik Vandenbruwaene
  • Patent number: 5665516
    Abstract: The present invention provides an imaging element comprising in the order given on a hydrophilic surface of a support (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion being in water permeable relationship with said image receiving layer and (iii) an intermediate layer between said image receiving layer and said photosensitive layer, characterized in that said intermediate layer comprises particles of an alkali insoluble polymeric organic compound obtainable by polycondensation, said particles having a number average size between 0.02 .mu.m and 10 .mu.m.According to the present invention there is also provided a method for making an offset printing plate according to the silver salt diffusion transfer process by using said imaging element.
    Type: Grant
    Filed: November 6, 1996
    Date of Patent: September 9, 1997
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Hendrik Kokelenberg, Ronny De Clercq, Jan Gilleir, Paul Coppens, Johan Loccufier
  • Patent number: 5643710
    Abstract: The present invention provides an imaging element comprising in the order given (i) a hydrophilic base, (ii) an image receiving layer containing physical development nuclei, (iii) a photosensitive layer containing a silver halide emulsion being in water permeable relationship with said image receiving layer and (iv) an intermediate layer between said image receiving layer and said photosensitive layer, characterized in that said intermediate layer comprises particles of a water insoluble inorganic compound having a number average size not lower than 0.02 .mu.m and lower than 3 .mu.m.According to the present invention there is also provided a method for making an offset printing plate according to the silver salt diffusion transfer process by using said imaging element.sup.+.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: July 1, 1997
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Paul Coppens, Eric Hoes, Johan Loccufier, Ronny De Clercq
  • Patent number: 5641605
    Abstract: Disclosed is a lithographic printing plate excellent in scratch resistance, stain resistance, print image quality and ink-removability. The lithographic printing plate comprises a support and, coated thereon in succession, at least one undercoat layer, a silver halide emulsion layer and a physical development nuclei layer, characterized in that the lithographic printing plate has an arithmetical mean deviation of the profile Ra of 0.6 or less and the layers on the silver halide emulsion layer-provided side of the support contain 2.0 g/m.sup.2 or more of a matting agent.
    Type: Grant
    Filed: November 6, 1995
    Date of Patent: June 24, 1997
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Akio Yoshida, Hideaki Baba, Motozo Yamano
  • Patent number: 5633114
    Abstract: An image-receiving element for use in photographic and photothermographic diffusion transfer film units of the type wherein the image-receiving element is designed to be removed or "peeled-apart" from a photosensitive element following exposure and processing. The present image-receiving element comprises in sequence, a support, an image-receiving layer, and an overcoat layer. The overcoat layer comprises a major amount by dry weight of water-insoluble particles and a minor amount by dry weight of a water-insoluble polymeric latex binder material. The water-insoluble particles may comprise inorganic particles such as colloidal silica, and/or organic particles such as water-insoluble polymeric latex particles.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: May 27, 1997
    Assignee: Polaroid Corporation
    Inventor: Kenneth C. Waterman
  • Patent number: 5624783
    Abstract: The present invention provides an imaging element comprising on one side of a support a photosensitive layer comprising a silver halide emulsion and an image receiving layer containing physical development nuclei in water permeable relationship with said emulsion layer and on the other side of the support at least one backing layer comprising gelatin and a dye and/or a dye precursor characterized in that said dye or dye precursor is such that after treatment of said imaging element in an alkaline solution with a pH of 10.9 for 20 s at a temperature of 30.degree. C. the backing layer has a reflection spectrum when treated for 20 s at 20.degree. C. in a neutralizing solution with a pH of 7.5 that is visually different from the reflection spectrum when treated for 20 s at 20.degree. C. in a neutralizing solution with a pH of 8.5.
    Type: Grant
    Filed: April 8, 1996
    Date of Patent: April 29, 1997
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Lode Deprez, Eric Kiekens
  • Patent number: 5620830
    Abstract: The present invention provides an imaging element comprising in the order given on a hydrophilic surface of a support (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion being in water permeable relationship with said image receiving layer and (iii) an antistress composition in water permeable relationship with said image receiving layer, said antistress composition comprising unhardened gelatin in an amount ranging from 0.60 to 1.75 g/m.sup.2, characterized in that at least 50% by weight of said unhardened gelatin belongs to one or more gelatin species whereof a 10% by weight aqueous solution at 36.degree. C. and pH 6 has a viscosity lower than 35 mPa.s at a shearing rate of 1000 s.sup.-1.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: April 15, 1997
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Paul Coppens, Eric Hoes, Ren e De Keyzer, Bart Van der Linden
  • Patent number: 5618651
    Abstract: There is provided an imaging element having a flexible support and comprising on said support a photosensitive layer comprising a silver halide emulsion and an image-receiving layer comprising physical development nuclei, said layers being in water permeable contact with each other, characterized in that said flexible support is a polyester film having a thickness between 0.15 and 0.35 mm and consisting of polyethylene 2,6-naphthalenedicarboxylate. There is also provided a method for making a lithographic printing plate comprising the steps of image-wise exposing an imaging element as defined above and subsequently developing a thus obtained imaging element by an alkaline processing liquid in the presence of developing agent(s) and silver halide solvent(s).
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: April 8, 1997
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Marc Stevens, Johan Van Hunsel, Jos Vaes
  • Patent number: 5612166
    Abstract: The present invention provides an imaging element comprising in the order given on a hydrophilic surface of a support (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion being in water permeable relationship with said image receiving layer and (iii) an intermediate layer between said image receiving layer and said photosensitive layer, characterized in that said intermediate layer comprises particles of an alkali insoluble non-polymeric organic compound having a melting point of at least 50.degree. C, said particles having a number average size between 0.1 .mu.m and 10 .mu.m.According to the present invention there is also provided a method for making an offset printing plate according to the silver salt diffusion transfer process by using said imaging element+.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: March 18, 1997
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Paul Coppens, Rene De Keyzer, Johan Loccufier
  • Patent number: 5597676
    Abstract: The present invention provides a method for obtaining an imaging element suitable for use in a silver salt diffusion transfer process by the steps of:preparing an image receiving element by coating the anodized surface of an aluminum foil with an image-receiving layer comprising physical development nuclei,preparing a photosensitive layer packet by coating a temporary base with at least one photosensitive silver halide emulsion layer,pressing the thus formed photosensitive layer packet with its photosensitive silver halide emulsion coated side against said image receiving layer, which has been wet with an aqueous moistening liquid, andoptionally removing said temporary base, characterized in that between said temporary base and said at least one photosensitive silver halide emulsion layer a barrier layer is present which is substantially free of developing agents, is substantially unhardened, comprises one or more hydrophilic binders in an amount of at least 0.25 g/m.sup.
    Type: Grant
    Filed: August 17, 1995
    Date of Patent: January 28, 1997
    Assignee: AGFA-Gevaert. N.V.
    Inventors: Ludo Van Rompuy, Paul Coppens