Multilayer Patents (Class 430/14)
  • Patent number: 4657831
    Abstract: Electrophotographic color proofs of half-tone dot pattern images are made which closely simulate the dot gain of prints made with lithographic plates and liquid inks. In forming the color proof, a thin transparent plastic sheet having on one side an electrophotographic toner dot pattern image is laminated to a reflective support with the toner image side in contact with the support. A thicker transparent plastic sheet is laminated to the other side of the thin sheet. The resulting color proof comprising a toner dot pattern on a reflective support and covered by a thin transparent layer and a thicker transparent layer has an apparent increase in dot size which simulates that of a press print.
    Type: Grant
    Filed: March 11, 1986
    Date of Patent: April 14, 1987
    Assignee: Eastman Kodak Company
    Inventors: Joseph H. Ambro, Lawrence E. Contois
  • Patent number: 4640877
    Abstract: A process for the ozone protection of photopolymer flexographic printing plates using alcohol soluble polyamides, which are applied onto the exposed and developed surface of the flexographic printing plate in a mixed solution comprising n-propanol and n-butanol, e.g., 10 to 90% and 90 to 10% by weight, respectively.
    Type: Grant
    Filed: March 26, 1985
    Date of Patent: February 3, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Hans L. Schroder
  • Patent number: 4640878
    Abstract: There is described a photomechanical method for forming pressure sensitive transfer reproductions of color images, either single color or multicolor, upon a substrate involving the forming of a base coat protective layer on a substrate, applying one color ink layer on the base layer and a white ink overlayer on the one color ink layer. The surface of the white ink overlayer is powdered and a layer of photoresist composition is applied. The photoresist covered layered substrate is exposed to a light source through an image carrying photographic negative film to harden the photoresist at the imaged areas thereby forming a mask. Nonhardened photoresist composition areas along with their underlaying layers are removed using stepwise solvent development steps. The steps are repeated where different ink colors are to be applied to form a multicolored image.
    Type: Grant
    Filed: December 13, 1985
    Date of Patent: February 3, 1987
    Assignee: Identicolor International, Inc.
    Inventors: Robert Evans, Robert Evans, Jr.
  • Patent number: 4629667
    Abstract: A coating composition for the backside of photographic prints and photographic prints so coated are described. The white coating is reflective, flexible, and water resistant.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: December 16, 1986
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John F. Kistner, Donald R. Hotchkiss
  • Patent number: 4629668
    Abstract: An information recording medium includes a substrate having first and second sides. A layer of photoresist is deposited on the first side of the substrate. This layer of photoresist has a selected thickness and defines an area of openings therein such that the first side of the substrate is exposed at the openings, the openings being distributed in a pattern indicative of selected stored information. A reflecting layer is deposited on the photoresist layer and on the first side of the substrate at the openings. Both the substrate and the layer of photoresist are adapted to transmit the reading beam such that a portion of the reading beam incident on the second side of the substrate is reflected out of the substrate by the reflecting layer, both in a first region comprising the openings and in a second region between the openings.
    Type: Grant
    Filed: March 12, 1985
    Date of Patent: December 16, 1986
    Assignee: Quixote Corporation
    Inventors: Alan B. Hamersley, Michael W. Goff, Vinai K. Thummalapally, Thomas M. Whitworth, Ramchandra R. Nomula
  • Patent number: 4624903
    Abstract: Liquid petroleum sulfonates are useful alone or in combination with less lipophilic anionic surfactants in the preparation of dispersions of water-insoluble photographic addenda, such as couplers and ultraviolet absorbers, in hydrophilic colloid compositions. Such dispersions are useful in photographic elements. Crystallization of the addenda is inhibited and, for some addenda, other advantages are obtained.
    Type: Grant
    Filed: November 21, 1985
    Date of Patent: November 25, 1986
    Assignee: Eastman Kodak Company
    Inventor: Michael J. Simons
  • Patent number: 4606985
    Abstract: Lithographic printing plates which have on a support at least one hardened gelatin-containing layer which contains a photographic gelatin and a low molecular-weight gelatin are improved in printing endurance, e.g., resistances against ink-staining and blinding of image areas.
    Type: Grant
    Filed: August 27, 1982
    Date of Patent: August 19, 1986
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Yoshikazu Takaya, Yasuo Tsubai, Hiroshi Nishinoiri
  • Patent number: 4592976
    Abstract: Provided is an identification card having a photographic image support, the lower layer of which is impregnated with a hot-melt type thermoplastic adhesive, and a laminable indicia bearing layer and a durable resilient backing to which the support and bearing layer are laminated.
    Type: Grant
    Filed: December 7, 1984
    Date of Patent: June 3, 1986
    Assignee: N. Peter Whitehead
    Inventor: Edwin N. Whitehead
  • Patent number: 4587186
    Abstract: A mask element for selective sandblasting comprising a support film layer and, superimposed thereon in the following order, a retainer film layer of a water-insoluble cellulose derivative and a photoresist layer of a pattern mask, said photoresist layer of pattern mask being adapted to adhere to the surface of an article body to be engraved with a strength such that the mask is not detached therefrom during sandblasting. By the use of the mask element of the present invention, a pattern exactly corresponding to that of the mask, even if it is very fine, can be engraved on an article body nicely.
    Type: Grant
    Filed: April 19, 1984
    Date of Patent: May 6, 1986
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Shohei Nakamura, Yoshimasa Tuji
  • Patent number: 4579754
    Abstract: A multilayer identification card in which information in the form of patterns, letters, numbers and/or pictures is inscribed by means of a laser recorder in a laser transformable layer of the identification card which is made of plastic and is transparent in the visible spectral range.The material of this laser transformable layer is adapted to the laser recorder in such a way that it absorbs the laser energy strongly enough in the wavelength of the laser beam transformations such as discoloration, microbubble formation, etc., take place locally in the material, rendering the applied information very clearly visible and immune to falsification in the otherwise transparent layer. This layer which bears the information can either be designed as a transparent identification card cover layer or be covered by another plastic layer which is transparent both visually and for the laser recorder.
    Type: Grant
    Filed: December 3, 1982
    Date of Patent: April 1, 1986
    Inventors: Thomas Maurer, Joseph Lass, Hans-Jurgen Holbein
  • Patent number: 4524116
    Abstract: The invention provides a master for use in image transfer by contact printing onto a transparent electrophotographic (TEP) film, which comprises an electrically insulating substrate having a planar surface which carries image elements deposited thereon; and a thin transparent insulating layer covering said planar surface and said image elements. The surface of the thin transparent insulating material is preferably profiled so that it comprises a base level and raised portions extending above said base level, the area of the raised portions being small compared to the total surface area of the transparent insulating layer. A thin transparent electrode may be incorporated between the substrate and the thin transparent insulating layer.Methods of forming such a master and of contact printing with it are also disclosed.
    Type: Grant
    Filed: May 17, 1983
    Date of Patent: June 18, 1985
    Assignee: Comtech Research Unit Limited
    Inventor: Victor C. Humberstone
  • Patent number: 4510225
    Abstract: An opaque reflective print copy is produced by transferring via heat and pressure, an electrophotographically formed toner image to a presoftened transparent thermoplastic thin layer carried bonded to an opaque substrate. The print is formed of at least one generally planar toner image layer embedded in the plastic layer near the outer surface thereof whereby light illuminating the print enters the thin layer and is reflected from the interface between said layer and said substrate, passing through the toner particles as well as being reflected from the toner particles themselves, whereby to provide an image having greater depth intensity and contrast than can be obtained using silver halide photographic film, all without distortion of the image, loss in density or loss in resolution. The substrate may have smooth or roughened surface, and may be selected from plain or coated paper, metal, stone, stretchable and/or inflatable media as well as irregularly shaped objects.
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: April 9, 1985
    Assignee: Coulter Systems Corporation
    Inventors: Manfred R. Kuehnle, Ferdinand Martinez
  • Patent number: 4499164
    Abstract: An optical barrier layer for use in reflection type image carrying media of the type wherein a thin transparent image receiving layer includes an image which is viewed through one side of the image receiving layer with ambient light that is reflected from a light scattering layer located on the other side of the image-receiving layer. The optical barrier layer is a thin, transparent layer located between the image receiving layer and the light scattering layer and operates to minimize nonlinear density effects of multiple internal reflections.
    Type: Grant
    Filed: May 3, 1984
    Date of Patent: February 12, 1985
    Assignee: Polaroid Corporation
    Inventor: William T. Plummer
  • Patent number: 4487826
    Abstract: A diazotype heat development recording medium of the present invention has excellent shelf life and heat sensitivity. The medium comprises a support and a recording layer which is formed on said support and which comprises a diazo compound, a coupler, an acid stabilizer, a thermal developer, and a polymeric binder. The thermal developer is a salt of an organic or inorganic acid having a primary dissociation constant of 2.times.10.sup.-1 to 1.times.10.sup.-4 and an alkyl-substituted guanidine represented by the general formula: ##STR1## (wherein at least one of R1 and R2 is an alkyl group of C.sub.8 to C.sub.24, and the other of R1 and R2 is a hydrogen atom or an alkyl group of C.sub.1 or more).
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: December 11, 1984
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Niro Watanabe, Shiro Nemoto, Hiroyuki Yasujima, Kaneki Yoshida
  • Patent number: 4477547
    Abstract: Disclosed is a method for making a complex layer type lithographic printing plate by forming a toner image on a printing original plate having organic electrophotographic photosensitive layer by electrophotographic process and treating non-image area other than the toner image area with an etching solution mainly composed of an alcohol solvent and/or an alkali solvent, said photosensitive layer being a complex layer type photosensitive layer which comprises a charge carrier generating layer comprising a charge carrier generating substance and a binder mainly composed of a polyamide resin soluble in alcohol solvent and a high molecular substance having compatibility with said resin and having a group soluble in alcohol solvent and/or alkali solvent and a charge carrier transport layer containing a high molecular substance having a group soluble in an etching solution mainly composed of alcohol solvent and/or alkali solvent and thereafter treating non-image area other than the toner image area with the etching
    Type: Grant
    Filed: January 6, 1983
    Date of Patent: October 16, 1984
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Jun Yamada, Takao Senga, Shigeyoshi Suzuki
  • Patent number: 4477548
    Abstract: Curable coating compositions useful for protective treatment of elements bearing electrographically-formed toner images are comprised of (a) either (i) a mixture of a siloxy-containing polycarbinol and an acrylated urethane, or (ii) a siloxy-containing acrylated urethane; (b) a multifunctional acrylate; and, optionally (c) a free radical photoinitiator. Toner image-bearing elements, such as electrographic elements and specifically photoconductive recording films, can be provided with a protective overcoat layer which is bonded to the element and which serves to protect the toner image from abrasion and scratches. Such an overcoat layer is provided by coating the element with a curable composition and curing the resulting coating. The protective overcoat layer is applied to the toner image-bearing side of the element.
    Type: Grant
    Filed: December 16, 1983
    Date of Patent: October 16, 1984
    Assignee: Eastman Kodak Company
    Inventors: Louis P. Harasta, Gerald M. Leszyk, Edward D. Morrison
  • Patent number: 4467028
    Abstract: A planographic printing plate comprises an anodized metal substrate, an interlayer on the substrate and a photosensitive layer on the interlayer in which the interlayer is a hydroxy-substituted organic acid.
    Type: Grant
    Filed: July 12, 1982
    Date of Patent: August 21, 1984
    Assignee: Polychrome Corporation
    Inventors: Jen-chi Huang, James Shelnut
  • Patent number: 4440841
    Abstract: In a photomask (hard mask) blank having a masking film of metallic chromium, chromium oxide, or the like, formed on a transparent substrate, there are interposed between the transparent substrate and the masking film a translucent and electroconductive film made of molybdenum, tantalum or the like and a translucent and chemically resistant protective film made of aluminum oxide, silicon oxide or the like, in the order mentioned from the side of the transparent substrate. The photomask obtained from this photomask blank is free from distortions or defects of transfer patterns caused by generation of electrostatic charges and also exhibits excellent durability in repeated uses, with intermediate repeated chemical washing.
    Type: Grant
    Filed: November 4, 1981
    Date of Patent: April 3, 1984
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventor: Kazuhiro Tabuchi
  • Patent number: 4434217
    Abstract: A layer of a chalcogenide glass resist material, on a substrate on which a microlithographic pattern is to be formed, has a deposit of silver halide on its outer surface. By actinic irradiation a latent silver image replicating the desired pattern is formed in the halide deposit. This image is developed to a metallic silver, which is used to photodope the resist material for subsequent etching to produce the microlithographic pattern on the substrate. Positive and negative patterns are possible from the same starting laminate. One form of a microlithograhic pattern is a mask for producing electronic circuits.
    Type: Grant
    Filed: January 5, 1981
    Date of Patent: February 28, 1984
    Assignee: GCA Corporation
    Inventors: Joseph I. Masters, Gershon M. Goldberg
  • Patent number: 4426431
    Abstract: Radiation-curable compositions useful for restorative and/or protective treatment of photographic elements are comprised of a polymerizable epoxy compound, a cationic initiator for initiating polymerization of the epoxy compound, a polymerizable acrylic compound, a haloalkylated aromatic ketone which serves as a free-radical initiator for initiating polymerization of the acrylic compound, and a polymerizable organofunctional silane. Photographic elements, such as still films, motion picture films, paper prints, microfiche, and the like, are provided with a protective overcoat layer which is permanently bonded to the element, and serves to protect it from abrasion and scratches, by coating the element with the radiation-curable composition and irradiating the coating to bond it to the element and cure it to form a transparent, flexible, scratch-resistant, cross-linked polymeric layer.
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: January 17, 1984
    Assignee: Eastman Kodak Company
    Inventors: Louis P. Harasta, Gerald M. Leszyk, Edward D. Morrison
  • Patent number: 4389472
    Abstract: The process relates to the production of tamperproof documents by laminating an information carrier on one or both sides with foils which have an adhesive layer which is hardened by radical cross-linking.
    Type: Grant
    Filed: December 16, 1980
    Date of Patent: June 21, 1983
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Karl-Friedrich Neuhaus, Hans J. Rosenkranz, Hermann Perrey
  • Patent number: 4383018
    Abstract: A color imaging device which comprises an adhesive layer between (a) means for sensing radiation comprising a planar array of charge-handling semiconductive photosensors, and (b) superimposed filter means for controlling access of radiation to the sensing means comprising a transparent polymer layer capable of receiving dyes such as heat transferable dyes; the adhesive layer comprising a polyester selected from the group consisting of (1) polyesters having recurring carboxylate units of which at least 80 mole percent are terephthalate units, and recurring alkylene units derived from glycols of which at least 40 mole percent are ether alkylene units, with the proviso that either (a) the recurring alkylene units comprise at least 60 mole percent ether alkylene units or (b) either the recurring carboxylate units comprise at least 2 mole percent pyromellitic tetracarboxylate units or at least 10 mole percent of linear aliphatic dicarboxylate units having at least 8 carbon atoms, and that when at least 10 mole per
    Type: Grant
    Filed: December 12, 1980
    Date of Patent: May 10, 1983
    Assignee: Eastman Kodak Company
    Inventors: Thomas W. Martin, M. Akram Sandhu
  • Patent number: 4378392
    Abstract: A laminate to extend the life of photographs and prevent them from gradual deterioration due to environmental conditions comprises a laminate made of a transparent film of ultraviolet-stabilized polyethylene terephthalate or ultraviolet-stabilized acrylonitrile and a transparent silicone or acrylic adhesive bonded to the film, the laminate being adapted to be bonded to the image surface of a photograph by the adhesive. Alternatively, to provide even greater protection against moisture vapor and oxidation, an additional layer of a transparent fluorocarbon polymer may be bonded to the ultraviolet-stabilized polyethylene terephthalate or ultraviolet-stabilized acrylonitrile with a silicone or acrylic adhesive. Alternately, to provide a better aesthetic appearance by means of thermal texturization, an ultraviolet-absorbing polymethylmethacrylate film may be bonded to the ultraviolet-stabilized polyethylene terephthalate or ultraviolet-stabilized acrylonitrile with a silicone or acrylic adhesive.
    Type: Grant
    Filed: November 30, 1981
    Date of Patent: March 29, 1983
    Inventor: Joseph M. Segel
  • Patent number: 4376159
    Abstract: The finished surface of a multicolor surprint proof is made to exhibit a matte appearance and closely simulate the surface texture of the printing stock to which it is applied. Individual colored image adhesive layers are laminated in register to a receptor sheet which comprises a coated layer of film-forming polymer composition on a polyester carrier sheet having a matte texture surface. Subsequent to final adhesive lamination of the assembled surprint to desired printing stock, the receptor carrier sheet is stripped from the polymer film layer to yield a tough protective film overlayer which complements the matte texture of the original receptor carrier sheet surface and provides the desired matte appearance of the multicolor proof.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: March 8, 1983
    Assignee: Keuffel & Esser Company
    Inventor: Daniel S. Spechler
  • Patent number: 4374691
    Abstract: A composite material and method for forming graphics such as letters or numbers that are pressure transferable to a substrate. The composite material includes an accepting tape including a layer of latent adhesive material on a receiving web, and a friable slightly adhesive layer lightly adhered to a donor web. When the layers are pressed together and the composite material is selectively heated in graphic patterns, corresponding portions of the adhesive material and friable layer adhere together so that upon subsequent separation of the layer of adhesive and the donor web portions of the friable layer transfer to the accepting tape in the heated areas to provide graphics. When the graphics are then positioned against a substrate and are pressed against the substrate by rubbing pressure applied through the receiving web, the adhesive layer will tear around the graphic and separate from the receiving web over the graphic so that the graphic will be transferred to the substrate.
    Type: Grant
    Filed: May 9, 1980
    Date of Patent: February 22, 1983
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Jan D. Vanden Bergh
  • Patent number: 4361635
    Abstract: A photolithographic sheet capable of forming a lithographic printing plate upon imaging via silver salt diffusion transfer comprising a support, a silver halide emulsion, and a receptor layer overlying the emulsion, the receptor layer comprising a high molecular weight hydrophilic polymer and catalytic nuclei for silver salt diffusion transfer development, the major proportion of the polymer being a dialdehyde polysaccharide.
    Type: Grant
    Filed: June 19, 1981
    Date of Patent: November 30, 1982
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Gerard H. Kinderman, James F. Sanders
  • Patent number: 4346154
    Abstract: A stain retarding concentration of a phosphine antistain agent or phosphine antistain agent precursor in the undercoat layer of a photographic silver halide element comprising a support having thereon (a) a photographic silver halide gelatino emulsion layer, and (b) an undercoat layer between the emulsion layer and the support, provides reduced stain in the element upon exposure and processing. The photographic element preferably comprises a silver halide developing agent. The photographic element, after exposure, is preferably processed by means of an aqueous alkaline activator bath and then an aqueous thiosulfate stabilizer bath.
    Type: Grant
    Filed: June 22, 1981
    Date of Patent: August 24, 1982
    Assignee: Eastman Kodak Company
    Inventors: Donald F. McLaen, Arthur H. Herz
  • Patent number: 4343879
    Abstract: A laser recording medium consisting of shiny silver particles in a colloid matrix having at least one superposed layer of colloid matrix containing dispersed metal particles other than silver to lower the reflectivity of the medium.
    Type: Grant
    Filed: August 22, 1980
    Date of Patent: August 10, 1982
    Assignee: Drexler Technology Corporation
    Inventors: Jerome Drexler, Eric W. Bouldin
  • Patent number: 4342820
    Abstract: Provided is a presensitized planographic printing master plate requiring no dampening water for use in negative work which comprises a base substrate, a light releasing photosensitive layer overlying the base substrate and a silicone rubber layer overlying the photosensitive layer. When the printing master plate is exposed through a negative film and then treated with a developer, only the silicone rubber layer overlying the exposed photosensitive layer is removed, while the photosensitive layer remains as it is to form an image area. Dampening water is not required when printing is carried out.
    Type: Grant
    Filed: December 10, 1980
    Date of Patent: August 3, 1982
    Assignee: Toray Industries, Inc.
    Inventors: Takao Kinashi, Takashi Fujita, Norio Kawabe
  • Patent number: 4340655
    Abstract: Improved thermal and mechanical barrier layers coated on the recording layer of an optical recording element are disclosed. The improved layers comprise water-soluble polymers having a glass transition temperature when dry of at least 100.degree. C. and preferably at least 150.degree. C. These barrier layers are easily coated and do not significantly degrade the performance of the element. Optional layers such as spacer layers and topcoat layers coated on the barrier layers are also disclosed.
    Type: Grant
    Filed: June 18, 1980
    Date of Patent: July 20, 1982
    Assignee: Eastman Kodak Company
    Inventors: Kenneth R. Hollister, Harold T. Thomas
  • Patent number: 4337289
    Abstract: A method of manufacturing a water-release transfer is disclosed in which a design in a photopolymerizable ink is applied to a substrate having a water-soluble release coating and the design is subjected to photopolymerizing radiation, e.g. ultra-violet light, to cause the ink to polymerize to a solid state. Preferably the ink comprises a mixture of a liquid unsaturated monomer and a viscous or solid prepolymer, and one or both of the monomer and prepolymer contain acryloyl or methacryloyl groups. The invention includes water-release transfers manufactured using photopolymerizable inks.
    Type: Grant
    Filed: June 6, 1980
    Date of Patent: June 29, 1982
    Inventors: Kenneth J. Reed, Alan L. Lythgoe
  • Patent number: 4330605
    Abstract: A photolithographic receptor sheet for silver diffusion transfer imaging comprising a support with a hydrophilic layer thereon consisting essentially of colloidal silica and a defined dry hydrophilic powder, and a catalytic silver precipitating nuclei layer thereover. The imaged construction is useful as a lithographic printing plate.
    Type: Grant
    Filed: January 21, 1981
    Date of Patent: May 18, 1982
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: David R. Boston
  • Patent number: 4330604
    Abstract: An improved process is provided for attaching layers of hydrophilic, photosensitive materials onto hydrophobic plastic substrates, which comprises forming a layer of a polycrystalline, optically transparent, moisture barrier material on the substrate, followed by depositing thereon a layer of a hydrophilic, polar material, prior to depositing the photosensitive layer thereon. The process is especially suitable for the fabrication of pre-holographic elements and holograms. Holograms are fabricated by exposing and developing latent images in the photosensitive layer of pre-holographic elements and attaching to the photosensitive layer by an optical adhesive a protective cover layer comprising a plastic substrate coated with the moisture barrier material and the hydrophilic material. Additional moisture barrier protection may optionally be provided by forming a combination of moisture barrier layers and hydrophilic layers on the outer surfaces of the plastic substrates.
    Type: Grant
    Filed: August 4, 1980
    Date of Patent: May 18, 1982
    Assignee: Hughes Aircraft Company
    Inventors: John E. Wreede, Andrejs Graube, Mark A. Mulvihill
  • Patent number: 4329409
    Abstract: An improved method for fabricating a light weight dichromated gelatin hologram package on plastic or glass substrates is provided. The prior art cover plate protecting the gelatin layer is eliminated by depositing on the gelatin a material providing a barrier to atmospheric moisture and possessing abrasion-resistant properties. In one embodiment, the photosensitive gelatin layer is deposited on a plastic substrate employing at least one subbing layer which provides a barrier to atmospheric moisture. Protection of the gelatin layer is provided by a plasma deposited silicon nitride film thereon.
    Type: Grant
    Filed: August 4, 1980
    Date of Patent: May 11, 1982
    Assignee: Hughes Aircraft Company
    Inventors: John E. Wreede, Andrejs Graube
  • Patent number: 4311774
    Abstract: A process for heat-stabilizing polymeric supports for diffusion transfer photographic image-receiving elements. Such treatment eliminates distortion effects in these image-receiving elements when they are exposed to high temperatures, such as encountered in ID card lamination devices.
    Type: Grant
    Filed: March 19, 1980
    Date of Patent: January 19, 1982
    Assignee: Polaroid Corporation
    Inventor: Thomas Raphael
  • Patent number: 4304626
    Abstract: The present invention resides broadly in a method for the preparation of paper having improved water and/or solvent resistance which comprises applying to a base paper a plastic particle containing formulation, and then wetting the formed coating with a solvent to which the plastic particles are sensitive. The present invention is particularly applicable to the preparation of electrostatic paper masters of improved water resistance for lithographic printing having a photoconductive layer and a barrier coat to which the photoconductive layer is applied. The barrier coat contains a binding amount of a binder resin and filler at least a portion of which is an amount of said plastic particles sensitive to the solvent system of the photoconductive layer, the amount of plastic particles and sensitivity being sufficient to materially increase water resistance.
    Type: Grant
    Filed: June 1, 1979
    Date of Patent: December 8, 1981
    Assignee: Allied Paper Incorporated
    Inventors: Michael J. Shaw, Robert J. Thiessen
  • Patent number: 4293629
    Abstract: The present invention resides broadly in a method for the preparation of paper having improved water and/or solvent resistance which comprises applying to a base paper a plastic particle containing formulation, and then wetting the formed coating with a solvent to which the plastic particles are sensitive. The present invention is particularly applicable to the preparation of electrostatic paper masters of improved water resistance for lithographic printing having a photoconductive layer and a barrier coat to which the photoconductive layer is applied. The barrier coat contains a binding amount of a binder resin and filler at least a portion of which is an amount of said plastic particles sensitive to the solvent system of the photoconductive layer, the amount of plastic particles and sensitivity being sufficient to materially increase water resistance.
    Type: Grant
    Filed: October 12, 1979
    Date of Patent: October 6, 1981
    Assignee: Allied Paper Incorporated
    Inventors: Michael J. Shaw, Robert J. Thiessen
  • Patent number: 4292396
    Abstract: A method of increasing the strength, abrasion resistance, solvent resistance, and press life of a lithographic image comprising a layer of light-reacted light sensitive material and an outer layer comprising an epoxy resin overlying the light-reacted layer. In the method, the surface of the outer layer is contacted and wetted with an aqueous solution comprising a least about 7% by weight of a boron trifluoride-amine complex. Solvent is evaporated from the solution on the surface to deposit dry boron trifluoride-amine complex on the outer layer and the outer layer is heated in the presence of the complex to cross-link the epoxy resin and form a hard, tough, abrasion-resistant, solvent-resistant and wear-resistant epoxy resin layer at the outside of the image. Further included in the invention are a curing composition adapted for topical application to a lithographic image in carrying out the method of the invention and a planographic printing plate produced thereby.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: September 29, 1981
    Assignee: Western Litho Plate & Supply Co.
    Inventors: Lester O. Eime, Edward H. Parker
  • Patent number: 4288510
    Abstract: This invention relates to the production of information carriers on which the information is recorded along a track; the process of making the information carrier comprises a first step of materializing the track itself before recording any information by forming a groove in an auxiliary layer, the track thus being capable of being optically detected, and a second step of recording the information in a photosensitive layer in contact with the auxiliary layer along the track previously formed.
    Type: Grant
    Filed: September 22, 1980
    Date of Patent: September 8, 1981
    Assignee: Thomson-Brandt
    Inventors: Claude Tinet, Claire Lemonon
  • Patent number: 4286046
    Abstract: Process for preparation of multicolor surprint proofs from a composite photoimaged element, e.g., photopolymer element, having, in order, a sheet support, at least two colored photoimaged elements, and a layer of colloidal silica applied thereon, said colloidal silica being coated from a substantially aqueous dispersion wherein the colloidal silica has an average particle diameter of less than 500 nm and wherein at least 75% of the solids of said dispersion are silica, the silica layer being at least 20 mg/dm.sup.2 when dried. The multicolor proofs obtained contain a sharp image free from any three-dimensional effects and have a delustered, matte appearance which simulates printed press sheets.
    Type: Grant
    Filed: June 4, 1979
    Date of Patent: August 25, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Abraham B. Cohen, Roxy Fan
  • Patent number: 4275104
    Abstract: A dry transfer system for transferring indicia to a receiving surface comprises a flexible but dimensionally stable carrier substrate with a film of cohesive, pliable and plastically deformable, indicium-forming material not more than 10 micrometers thick defining a preformed image and adhering to the front surface of the substrate. This surface is composed of a smooth material with adhesive properties such that without relying on adhesive the film can be released and transferred to a receiving surface in close contact, by a pressure transmitted through the substrate, but the film is retained on the carrier substrate in the absence of such pressure, in spite of close contact with the receiving surface.
    Type: Grant
    Filed: May 23, 1979
    Date of Patent: June 23, 1981
    Assignee: International Hona NV
    Inventor: Erno N. de Nagybaczon
  • Patent number: 4275141
    Abstract: An ultraviolet-sensitive optical information recording material comprising doped silver chloride and tin oxide which exhibits high ultraviolet darkening sensitivity and good resistance to darkening or bleaching by visible light, and a method for optically recording information in permanent, optically-readable form in such a material by direct writing without chemical development, are described.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: June 23, 1981
    Assignee: Corning Glass Works
    Inventors: Nicholas F. Borrelli, Peter L. Young
  • Patent number: 4272594
    Abstract: Photographic diffusion transfer products of the integral negative-positive type adapted to the provision of a diffusion transfer image retained within a permanent laminate having at least one developed silver halide emulsion, and viewable through a transparent support against a reflecting background, are described. A light-reflecting layer, comprising a polymeric binder matrix, a light-reflecting pigment and a light-absorbing particulate carbon-based pigment material, is employed in such products for the provision of opacification to permit in-light development and for the provision of a layer against which the diffusion transfer image may be viewed.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: June 9, 1981
    Assignee: Polaroid Corporation
    Inventors: Louis J. George, Barbara A. Theobald
  • Patent number: 4269915
    Abstract: An original of an information carrier, and a process of making the carrier is disclosed in which the carrier comprises a layer of carrier material to which a layer of recording material has been applied, which recording layer contains a relief image reproducing the information. The relief image is comprised of a plurality of part-images in one plane, adjoining one another without overlapping, and having superimposed thereon a relief grid of different depths in the areas of the individual relief part-images. At least four relief part-images are utilized corresponding to the projection colors yellow, red, blue-violet and green.
    Type: Grant
    Filed: July 27, 1978
    Date of Patent: May 26, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Roland Moraw
  • Patent number: 4269916
    Abstract: Photographic products having reflective layers which comprise lamellar interference pigments.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: May 26, 1981
    Assignee: Polaroid Corporation
    Inventors: Ruth C. Bilofsky, Howard G. Rogers
  • Patent number: 4262071
    Abstract: Pre-press or photomechanical color proofs of half-tone printed products do not faithfully match the color tone values of the final half-tone printed product. This problem occurs from the fact that the printing press, in its mechanical operation, produces half-tone dots on the substrate which are larger than the dots on the printing plate or separation negative itself. It has been found that the proper tonal values for gauging the final results from the press can be obtained in the pre-press color proof by the insertion of a spacer layer between the opaque base and the applied pigment or dye containing layers.
    Type: Grant
    Filed: August 20, 1979
    Date of Patent: April 14, 1981
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Gerald W. Larson
  • Patent number: 4262072
    Abstract: Abrasion resistant coatings are comprised of a crosslinked polymeric coating comprising at least 15% by weight of said polymer derived from a polyacrylate material having a heterocyclic nucleus therein.
    Type: Grant
    Filed: June 25, 1979
    Date of Patent: April 14, 1981
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Larry A. Wendling, John B. Covington
  • Patent number: 4256816
    Abstract: A lift-off mask for the patterned deposition of thin films comprises a three layer sandwich of photoresist-aluminum-photoresist on a substrate. Deposition occurs through an opening in the top photoresist layer and through larger size (i.e., undercut) openings in the aluminum and bottom photoresist layers. The top layer of photoresist remains on the mask during deposition and defines the pattern, the bottom photoresist is fully exposed and in the openings provides an undercut which prevents edge tearing during lift-off, and the aluminum layer (typically 50-200 Angstroms thick) protects the bottom layer of photoresist from dissolving during formation of the top photoresist layer. Also described is a technique in which the edges of thin films are tapered by depositing them from a direction oblique to the substrate surface and by rotating the substrate during deposition. These techniques are specifically discussed in the context of fabricating Josephson junction devices.
    Type: Grant
    Filed: February 7, 1980
    Date of Patent: March 17, 1981
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventor: La Rue N. Dunkleberger
  • Patent number: 4253910
    Abstract: Linear means, particularly for producing a mirror having a discrete transparent portion of a desired shape, configuration or ornamentation and having a backing which may have a discrete image of corresponding shape, configuration or ornamentation affixed in juxtaposition thereto, is set forth. The means of production of said mirror include providing, upon a glass surface, a layer of reflective substance, applying over said reflective substance, a layer of protective resist material which delineates, outlines and profiles said desired shape, configuration or ornamentation, then treating said coated glass surface to set said resist and washing the same to remove unprotected reflective portions delineated by said protective layer and exposed to said wash.
    Type: Grant
    Filed: November 24, 1978
    Date of Patent: March 3, 1981
    Assignee: Colonial Mirror & Glass Corp.
    Inventors: Robert C. Mason, Joseph Scerbo
  • Patent number: 4245018
    Abstract: The light stability of organic substrate materials such as photographic dyes is improved by the copresence of at least one of the complexes shown by following formulae I, II, III, or IV ##STR1## wherein M represents Cu, Co, Ni, Pd or Pt; R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each represents a hydrogen atom, a halogen atom, a cyano group or an alkyl group, an aryl group, a cycloalkyl group or a heterocyclic group bonded directly or through a divalent connecting group to the carbon atom of a benzene ring; or R.sup.1 and R.sup.2 ; R.sup.2 and R.sup.3 ; or R.sup.3 and R.sup.4 combine to represent the non-metallic atoms necessary to complete a 6-membered ring; R.sup.5 and R.sup.8 each represents a hydrogen atom, an alkyl group, or an aryl group; R.sup.6 represents a hydrogen atom, an alkyl group, an aryl group, or a hydroxyl group; R.sup.7 represents an alkyl group or an aryl group; and Z represents the non-metallic atoms necessary to complete a 5-membered or 6-membered ring.
    Type: Grant
    Filed: July 11, 1979
    Date of Patent: January 13, 1981
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroshi Hara, Kotaro Nakamura, Yoshiaki Suzuki