Polymer Containing Subbing Layer Patents (Class 430/160)
  • Patent number: 5565301
    Abstract: A process for forming a colored image comprising, in order:(A) imagewise exposing to actinic radiation a photosensitive element comprising a carrier support, a carrier surface, a first adhesive layer and a first photosensitive layer,(B) developing the exposed first photosensitive layer,(C) laminating to the element a transfer element comprising a transfer support, and a transfer surface layer which is adjacent to a colored pattern in the element of step (A) with the proviso that the transfer element does not have an adhesive layer which transfers to the colored pattern,(D) removing said carrier support and said carrier surface, revealing said first adhesive layer,(E) laminating the element the element from step (D) to a permanent support wherein the first adhesive layer is adjacent to the permanent support; and(F) removing said transfer support and said transfer surface layer.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: October 15, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Gregory A. Bodager
  • Patent number: 5556733
    Abstract: A thermal development diazo copying material is composed of a support, a diazo layer which contains a diazo compound, and a coupler layer which contains a coupling component, an alkali-soluble resin and a thermofusible material, which are overlaid on the support.
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: September 17, 1996
    Assignee: Ricoh Company, Ltd.
    Inventors: Shigeru Kusakata, Masanori Rimoto
  • Patent number: 5543261
    Abstract: The present invention provides an imaging element comprising on a hydrophilic support a light sensitive layer containing a diazo resin or a diazonium salt characterized in that said light sensitive layer contains pullulan. The obtained imaging element shows an improved storage stability.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: August 6, 1996
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Joan Vermeersch, Guido Hauquier, Dirk Kokkelenberg
  • Patent number: 5541035
    Abstract: A method of forming a multicolored image wherein image layers etc. formed on photosensitive transfer sheets are transferred in turn onto an image-receiving sheet and then, its image layer etc. are retransferred onto a permanent supporter. Both of a transferring image layer alone and a transferring image layer and adhesive layer are used properly for photosensitive transfer sheets. The finish quality comes close to original print and the runnability becomes better when making a color proof.
    Type: Grant
    Filed: May 18, 1994
    Date of Patent: July 30, 1996
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Hisahiro Omote, Satoshi Kuwabara, Masahide Takano
  • Patent number: 5529879
    Abstract: This invention relates to a photosensitive sheet having on a substrate one or more resin layers that are peelable from the substrate and heat-fusible, and a colored photosensitive layer in this order, said substrate comprising a biaxially stretched plastic film and having a molecular orientation ratio in the range of from 1.0 to 1.4.The object of this invention is to solve the problem of misregister without decreasing productivity during the formation of plastic film (substrate) or during the production of a photosensitive sheet in a method in which said photosensitive sheet having an image formed thereon and an image receiving sheet for receiving the image are superimposed on each other, and pressed and heated for image transfer.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: June 25, 1996
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Mitsuhide Hoshino, Fukuo Murata, Norio Yabe, Masahide Takano
  • Patent number: 5518857
    Abstract: A method for engraving and/or etching comprising the steps of: (a) a process for exposing, to light, a layer of a water-soluble resin composition of a laminated photo-sensitive film which comprises a supporting sheet, a image mask-protection layer peelablly adhered to the supporting sheet and a layer of a water-soluble resin composition having photocrosslinkability to thus cause crosslinking of the exposed area of the resin layer to thereby form a predetermined pattern on the resin layer; (b) a process for dissolving out the non-crosslinked portion of the layer of the water-soluble photo-sensitive resin composition by developing the layer with water to thus from an image-carrying mask which is constituted from the crosslinked area of the photo-sensitive resin composition remaining on the image mask-protection layer; (c) a process for adhering the photo-sensitive laminate film on which the images are formed to the surface of a material to be processed; (d) a process for peeling off the supporting sheet from th
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: May 21, 1996
    Assignee: Aicello Chemical Co., Ltd.
    Inventors: Tsutomu Suzuki, Ikuo Suzuki
  • Patent number: 5478689
    Abstract: A thermal development diazo copying material is composed of a support, and a photosensitive layer formed thereon, which includes a diazo compound, a coupler, an alkali-soluble resin, and a sensitizer, with only the coupler being contained in microcapsules made of the alkali-soluble resin.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: December 26, 1995
    Assignee: Ricoh Company, Ltd.
    Inventors: Masanori Rimoto, Shigeru Kusakata
  • Patent number: 5462833
    Abstract: The present invention provides a lithographic base comprising on a hydrophobic support a subbing layer and a hydrophilic layer containing a hydrophilic (co)polymer or (co)polymer mixture and being hardened with a hydrolyzed tetraalkyl orthosilicate crosslinking agent characterized in that said subbing layer contains a hydrophilic binder and silica, the surface area of the silica being at least 300 m.sup.2 per gram.
    Type: Grant
    Filed: March 9, 1994
    Date of Patent: October 31, 1995
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Guido Hauquier, Willem Cortens, Paul Coppens, Joan Vermeersch, Erik Mostaert, Eric Verschueren
  • Patent number: 5427890
    Abstract: A method for engraving and/or etching comprising the steps of: (a) a process for exposing, to light, a layer of a water-soluble resin composition of a laminated photosensitive film which comprises a supporting sheet, a image mask-protection layer peelablly adhered to the supporting sheet and a layer of a water-soluble resin composition having photocrosslinkability to thus cause crosslinking of the exposed area of the resin layer to thereby form a predetermined pattern on the resin layer; (b) a process for dissolving out the non-crosslinked portion of the layer of the water-soluble photo-sensitive resin composition by developing the layer with water to thus from an image-carrying mask which is constituted from the crosslinked area of the photo-sensitive resin composition remaining on the image mask-protection layer; (c) a process for adhering the photo-sensitive laminate film on which the images are formed to the surface of a material to be processed; (d) a process for peeling off the supporting sheet from the
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: June 27, 1995
    Assignee: Aicello Chemical Co., Ltd.
    Inventors: Tsutomu Suzuki, Ikuo Suzuki
  • Patent number: 5422229
    Abstract: A photosensitive layered sheet for producing transferrable decorative foil designs comprising a solvent resistant, hydrophobic plastic film having superimposed thereon the following sequential layers of coatings:(a) a clear or colored water insoluble lacquer;(b) a clear water soluble polymer;(c) an organic solvent containing from 2-8% by weight of aluminum platelets having their largest dimension not greater than about 5000 microns and a thickness not greater than 1000 angstroms;(d) an ink extender;(e) an ink coat powder, and(f) a pre-sensitized photographic emulsion.A method of making these photosensitive layered sheets.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: June 6, 1995
    Assignee: Fabco Products, Inc.
    Inventors: Barry Typlin, John E. Murtaugh
  • Patent number: 5403694
    Abstract: The present invention provides an imaging element comprising on a support in the order given, a hydrophilic layer containing a hydrophilic (co)polymer or (co)polymer mixture and being hardened with a hydrolyzed tetraalkyl orthosilicate crosslinking agent and a light sensitive layer containing a diazo resin or a diazonium salt characterized in that an intermediate hydrophilic layer containing an organic compound having one or more cationic groups is provided between said hydrophilic layer and said light-sensitive layer. There is further provided a method for making such an imaging element and a method for making a lithographic printing plate therewith.
    Type: Grant
    Filed: December 10, 1993
    Date of Patent: April 4, 1995
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Joan Vermeersch, Dirk Kokkelenberg, Guido Hauquier
  • Patent number: 5368974
    Abstract: Improved lithographic printing plates are comprised of an aluminum support, a hydrophilic barrier layer comprised of a copolymer of about 40 to about 90 mole percent vinylphosphonic acid and about 10 to about 60 mole percent acrylamide overlying said support, and an image-forming layer capable of providing a lithographic printing surface overlying said barrier layer.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: November 29, 1994
    Assignee: Eastman Kodak Company
    Inventors: John E. Walls, Paul R. West
  • Patent number: 5348833
    Abstract: The invention relates to a positive-working colored photosensitive recording material for the production of a color test image, composed of a temporary layer carrier, a photosensitive layer containing dyestuff or pigment, binder and quinonediazide compound and an adhesive layer which can be activated by means of heat, wherein a release layer based on polyvinyl alcohol is present on the surface of the temporary layer carrier, the photosensitive layer comprises, as the quinonediazide compound, an esterification product of a compound containing one or more phenolic hydroxyl groups and o-quinonediazide-sulfonyl chloride, and, as the binder, a novolak-free phenolic polymer resin and/or a reaction product of the phenolic polymer resin with a monoisocyanate, and the adhesive layer compresses a alkali-insoluble organic polymer and an alkali-soluble polyester. The invention also relates to a process for the production of a color test image using the recording material described.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: September 20, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Dieter Mohr, Martin Benzing, Juergen Mertes, Guenter Hultzsch, Ine Gramm, Manfred Michel, Andreas Elsaesser, Shane Hsieh, David L. Siegfried
  • Patent number: 5286704
    Abstract: The present invention relates to a heat-sensitive recording medium which is excellent in dot-reproducibility and in adhesion between a support and a heat-sensitive recording layer provided thereon. The present recording medium comprises a synthetic-resin support, an ionomer-resin layer on the support, and a heat-sensitive recording layer provided on the ionomer-resin layer.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: February 15, 1994
    Assignee: Honshu Paper Co., Ltd.
    Inventors: Motonao Yoshikawa, Katsumi Moronuki
  • Patent number: 5260167
    Abstract: Disclosed is a light-sensitive litho printing plate requiring no dampening water having a primer layer, a light-sensitive layer and a silicone rubber layer in this order on a support, characterized in that the above primer layer contains (1) an ethylenic unsaturated compound having a polymerizable unsaturated group and (2) a photopolymerization initiator, and has a tensile strength of 10 Kg/cm.sup.2 or more and a Vickers hardness of 70 or less.
    Type: Grant
    Filed: October 3, 1991
    Date of Patent: November 9, 1993
    Assignees: Konica Corporation, Mitsubishi Kasei Corporation
    Inventors: Nobumasa Sasa, Kimi Ojima, Tetsuya Taniguchi, Hiroshi Tomiyasu, Akeo Kasakura
  • Patent number: 5188924
    Abstract: A pattern forming method, comprising the steps of providing a resist film on a substrate; providing a photosensitive film containing a photosensitive diazonium salt on the resist film; and then subjecting the resultant composite to pattern exposure by use of a light to which both of the resist film and the photosensitive diazonium salt are sensitive, can employ a composition for pattern formation which comprises a photosensitive diazonium salt, a resin binder and a solvent. By this method, a minute pattern of 1 .mu.m or less can be formed, utilizing effectively the UV-ray exposure technique of the prior art, with good dimensional precision and stability.
    Type: Grant
    Filed: October 16, 1991
    Date of Patent: February 23, 1993
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kunihiro Ikari, deceased, Hirokazu Niki, Makoto Nakase, Toshiaki Shinozaki
  • Patent number: 5183723
    Abstract: This invention relates to a method for forming a colored image on a degradable sheet material. As a result, a negative- or positive-working color proofing sheet can be produced on a variety of printing paper stocks. Upon exposure to an actinic radiation source through a screened image and development, it can accurately reproduce the image on the degradable sheet. The construction is useful as a color proof which can be employed to accurately predict the image quality from a lithographic printing process on a variety of printing surfaces.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: February 2, 1993
    Assignee: Hoechst Celanese Corporation
    Inventors: Stephan J. W. Platzer, Arthur E. Procter, Thomas Dunder
  • Patent number: 5103550
    Abstract: Disclosed is a food or beverage container or container panel comprised of an aluminum alloy body having an integral bottom and wall. An intermediate layer comprised of an aluminum oxide or aluminum hydroxide layer is bonded to the aluminum alloy body and a functionalized layer of an organo phosphonate, organo phosphinate or phosphate ester is bonded to the oxide or hydroxide layer. A polymer layer is bonded to the functionalized layer. The functionalized layer is comprised of the reaction product of phosphonic or phosphinic acid and/or phosphonic acid ester, for example.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: April 14, 1992
    Assignee: Aluminum Company of America
    Inventors: Karl Wefers, Gary A. Nitowski, Larry F. Wieserman
  • Patent number: 5089371
    Abstract: The present invention is directed toward a heat development copying material, comprising a support having provided thereon a photosensitive layer containing a diazo compound, a coupling component, a color-forming assistant, and a film-forming high polymeric binder; and a light-insensitive intermediate laeyr containing a film-forming high polymeric binder, and at least one member selected from the group consisting of a coupling component and a color-forming assistant, wherein the light-insensitive intermediate layer is provided between the support and the photosensitive layer, and a method for forming an image using the above-described copying material.
    Type: Grant
    Filed: July 20, 1989
    Date of Patent: February 18, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kotaro Nakamura, Toshiharu Tanaka, Hirokazu Shimada
  • Patent number: 4987048
    Abstract: An image forming material comprising a support, a coloring material-containing organic polymer layer and a photosensitive resin layer in order in the form of a laminate, wherein the organic polymer of the organic polymer layer comprises a copolymer of an aralkyl (meth)acrylate and (meth)acrylic acid.
    Type: Grant
    Filed: August 7, 1989
    Date of Patent: January 22, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Fumiaki Shinozaki, Tomizo Namiki
  • Patent number: 4985344
    Abstract: A process for forming a pattern comprising forming an alkali-soluble polymer layer on a substrate, forming a radiation-sensitive composition layer containing a diazonium salt on the alkali-soluble polymer layer to form a resist layer having a two-layer structure, exposing the resist layer to a radiation to cause the change in solubility in an aqueous alkaline solution at the boundary between the two layers and forming a predetermined pattern in the resist layer by a usual resist process. The resist layer may comprise a plurality of layers comprising the two-layer structure as a repeating unit structure.
    Type: Grant
    Filed: October 13, 1989
    Date of Patent: January 15, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Shoichi Uchino, Takumi Ueno, Takao Iwayanagi, Saburo Nonogaki, Michiaki Hashimoto
  • Patent number: 4980263
    Abstract: A light-sensitive composition comprises a diazo resin, a polymeric binder, and at least one compound having at least one structural unit selected from the group consisting of ureido bond, thioureido bond, urethane bond and thiourethane bond. The light-sensitive composition can suitably be used for preparing a presensitized plate for use in making lithographic printing plates and is excellent in developability with an aqueous alkaline developer.
    Type: Grant
    Filed: March 2, 1989
    Date of Patent: December 25, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Toshiyuki Sekiya
  • Patent number: 4980260
    Abstract: A multicolor image-forming method which comprises image-exposing a light-sensitive heat-sensitive recording material having a diazo compound and a coupling component on a support using a positive image followed by developing to form a color image, image-exposing a light-solubilizing color image-forming material having a coloring material on a substantially transparent support using a positive image followed by developing to form a color image, and superposing the light-solubilizing color image-forming material having the color image on the light-sensitive heat-sensitive recording material having the color image or, further, heat-pressing the light-solubilizing color image-forming material having the color image superposed on the light-sensitive heat-sensitive recording material having the color image.
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: December 25, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Fumiaki Shinozaki, Mikio Totsuka, Tomizo Namiki
  • Patent number: 4950577
    Abstract: Presensitized sheets for color proofing comprising a removable carrier sheet bearing a photosensitive medium sensitive to radiation within the wavelength band 325 to 700 nm and comprising photohardenable, photoadherent, photoinsolubilisable or photosolubilisable material, the sheet including a removable antihalation layer which is removed either when stripping the carrier sheet or during subsequent processing. The antihalation dyes may be positioned within a transparent carrier sheet, in a layer on the carrier sheet opposite to the photosensitive medium or in a layer positioned between the carrier sheet and light-sensitive medium.
    Type: Grant
    Filed: May 23, 1985
    Date of Patent: August 21, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Duncan M. A. Grieve, Ronald W. Burrows, John Souter
  • Patent number: 4943510
    Abstract: A polyester film which is provided with a permanent, antistatic coating on one surface, which coating is obtained by treating the biaxially stretch-oriented and heat-set film with an aqueous dispersion, containing at least one copolyester containing sulfonate groups, and at least one salt derived from an amino acid or a protein hydrolysate and having a diazotype reproduction layer on the opposite surface of the film.
    Type: Grant
    Filed: July 20, 1989
    Date of Patent: July 24, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus Thoese, Karl-Heinz Jung
  • Patent number: 4914039
    Abstract: This invention relates to water developable, negative working photosensitized sheet constructions which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image. The construction is useful as a color proofing film which can be employed to predict the image quality from a lithographic printing process. The invention provides both overlay and transfer type proofing sheets which have good fingerprint resistance.
    Type: Grant
    Filed: April 20, 1988
    Date of Patent: April 3, 1990
    Assignee: Hoechst Celanese Corporation
    Inventor: Stanley F. Wanat
  • Patent number: 4902770
    Abstract: The undercoating composition of the invention, useful for providing an undercoating layer for a top coat of a photosensitive resist layer on a substrate surface, comprises, as a principal ingredient thereof, a condensation product obtained by the condensation reaction between a hydroxy-substituted diphenylamine and a melamine compound substituted on the nitrogen atoms with methylol groups and/or alkoxymethyl groups. The undercoating obtained of the composition is highly resistant against the attack by the overcoating solution applied thereon so that the fidelity of the pattern reproduction by the photolithographic technique is greatly improved by virtue of the absence of any disorder at the interface between the undercoating and top coat layers. The advantage is further increased when the undercoating composition further comprises a photoextinctive agent, e.g. a dye, having absorptivity in the wave length region where the photosensitive resist of the top coat has sensitivity.
    Type: Grant
    Filed: May 20, 1987
    Date of Patent: February 20, 1990
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Wataru Ishii, Shozo Miyazawa, Shinji Tsuchiya, Hisashi Nakane, Akira Yokota
  • Patent number: 4885225
    Abstract: Particulate organic polymeric beads in the thermal adhesive layer of prepress color proofing elements prevents adhesive blocking without optical interference or reduction in adhesive performance.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: December 5, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Michael B. Heller, Leonard W. Sachi, David R. Walbridge
  • Patent number: 4876155
    Abstract: A polyester film which is provided with a permanent, antistatic coating on one surface, which coating is obtained by treating the biaxially stretch-oriented and heat-set film with an aqueous dispersion, containing at least one copolyester containing sulfonate groups, and at least one salt derived from an amino acid or a protein hydrolysate. The material can be used in the production of diazo duplicating films.
    Type: Grant
    Filed: December 15, 1987
    Date of Patent: October 24, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus Thoese, Karl-Heinz Jung
  • Patent number: 4842950
    Abstract: An improved overlay proofing film comprising a substantially transparent polyester base film which is first coated on one or both sides with a non-light sensitive composition having a refractive index of about 1.6, said non-light sensitive composition consisting essentially of a copolymer of polymethyl methacrylate and methacrylic acid.
    Type: Grant
    Filed: May 26, 1988
    Date of Patent: June 27, 1989
    Assignee: Hoechst Celanese Corporation
    Inventor: O. Alfred Barton
  • Patent number: 4833065
    Abstract: In a process for producing a support for a lithographic printing plate, at least one surface of an aluminum sheet is subjected to roughening treatment and subsequently to anodic oxidation treatment at a current density of at least 1 A/dm.sup.2 in an electrolytic solution containing 0.1 to 5% by weight of an alkaline electrolyte. Even if scratches are formed on non-image areas of a printing plate prepared from the support according to the invention, such scratches cause less stains on a printed matter.
    Type: Grant
    Filed: October 1, 1986
    Date of Patent: May 23, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Haruo Nakanishi, Hirokazu Sakaki
  • Patent number: 4826752
    Abstract: A dry photosensitive lithographic printing plate has a base, a photosensitive layer formed on the base and a silicone rubber layer formed on the photosensitive layer. The silicone rubber layer is formed from a silicon rubber composition containing an organopolysiloxane and a reactive aromatic aminosilane compound.
    Type: Grant
    Filed: June 18, 1987
    Date of Patent: May 2, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Susumu Yoshida, Hiroshi Takahashi, Hisashi Aoki, Kiyohiro Kondow, Tetsuya Mayuzumi
  • Patent number: 4803145
    Abstract: A light-sensitive image-forming material which has on a support a coloring layer comprising a coloring agent and an alkali soluble organic macromolecular binder, and a photopolymer layer, in the order listed, with the coloring layer further containing a particular fluorine-containing surface active agent, whereby uniform film thickness is ensured to the coloring layer even when drying is carried out in a short time using simple equipment. The fluorine-containing surface active agent is a copolymer comprising as repeating units (1) an acrylate or a methacrylate which has a fluorinated alphatic group containing from 3 to 20 carbon atoms and not less than 40 wt % of fluorine atoms, with the aliphatic group having a terminal moiety containing at least 3 fluorinated carbon atoms, and (2) a poly(oxyalkylene)acrylate or a poly(oxyalkylene)methacrylate. In addition, the portion of the fluorinated aliphatic group-containing acrylate or methacrylate repeating unit is from 10 to 70% by weight.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: February 7, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tamotsu Suzuki, Fumiaki Shinozaki, Akira Nishioka, Mikio Totsuka
  • Patent number: 4792515
    Abstract: Erasable diazotype second originals on a translucent base have become very popular because they permit correcting, deletions and additions of new information to drawings without the need to redo an entire drawing. A new barrier film composition that acts simultaneously as matrix for the diazotype coating components and controls the ease of mechanical erasure is disclosed. The second originals exhibit almost film like reprographic continuity.
    Type: Grant
    Filed: January 8, 1987
    Date of Patent: December 20, 1988
    Assignee: Andrews Paper & Chemical Co., Inc.
    Inventors: Peter Muller, Henry Mustacchi, George Schmitz
  • Patent number: 4783390
    Abstract: A multi-color image forming material which is in the form of multiple layers on a support, and having, at least two photosensitive layers, the farthest layer from the support being the uppermost photosensitive layer, the photosensitive layers being formed from a water-soluble resin having photocrosslinking ability with diazo resin, a photosensitive water-soluble, organic solvent insoluble diazo resin, and a water dispersible coloring agent which can produce a color tone, each photosensitive layer having a coloring agent which can produce a different color tone; and at least one intermediate layer, each intermediate layer being positioned between each photosensitive layer and the next adjacent photosensitive layer, the intermediate layer being formed from a hydrophobic, water-resistant, organic solvent softenable resin.
    Type: Grant
    Filed: April 1, 1987
    Date of Patent: November 8, 1988
    Assignee: Sanyo-Kokusaku Pulp Co., Ltd.
    Inventors: Hisashi Mino, Norio Yabe, Takeshi Iijima
  • Patent number: 4751166
    Abstract: This invention relates to negative photosensitized sheet contructions which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image. The construction is useful as a color proofing film which can be employed to predict the image quality from a lithographic printing process.
    Type: Grant
    Filed: September 12, 1986
    Date of Patent: June 14, 1988
    Assignee: Hoechst Celanese Corp.
    Inventors: Stephan J. Platzer, Gabor I. Koletar
  • Patent number: 4748101
    Abstract: An improved overlay proofing film comprising a substantially transparent polyester base film which is first coated on one or both sides with a non-light sensitive composition having a refractive index of about 1.6, said non-light sensitive composition consisting essentially of a copolymer of polymethyl methacrylate and methacrylic acid, said coated polyester base film having a second coating on either side thereon, said second coating comprising a light sensitive mixture of(a) a resinous binder;(b) a colorant; and(c) a light sensitive material.
    Type: Grant
    Filed: November 4, 1986
    Date of Patent: May 31, 1988
    Assignee: Hoechst Celanese Corporation
    Inventor: O. Alfred Barton
  • Patent number: 4731316
    Abstract: A photosensitive composition of this invention comprises:(a) a photosensitive diazo resin represented by the following general formula (I): ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each represents a hydrogen atom, an alkyl or alkoxy group, R represents a hydrogen atom, an alkyl or phenyl group, X represents PF.sub.6 or BF.sub.4 and n represents a number of 1 to 200, in which a resin with the number n in the above formula being 5 or more is contained by more than 20 mol %,(b) an oleophilic high molecular weight compound with hydroxyl group and(c) a high molecular weight organic acid without hydroxyl group, and in which the content of the ingredient (c) is from 1.5 to 30% by weight based on the solid matter in said composition.The photosensitive composition of this invention can provide a photosensitive layer having high sensitivity and being excellent in storage stability and developability as well as excellent in the film strength.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: March 15, 1988
    Assignees: Mitsubishi Chemical Industries Limited, Konishiroku Photo Industry Co., Ltd.
    Inventors: Hiroshi Tomiyasu, Yoshihiro Maeda, Kiyoshi Goto, Norihito Suzuki
  • Patent number: 4729935
    Abstract: A process for the production of photographic images utilizing a photographic element comprising a transparent support and a coating on the support comprising a diazonium composition having a light absorbency of about 45% or less, and a colorant composition, said coating having a light transmission of not more than about 0.1%.
    Type: Grant
    Filed: October 18, 1985
    Date of Patent: March 8, 1988
    Assignee: Hoechst Celanese Corporation
    Inventors: John E. Walls, Major S. Dhillon
  • Patent number: 4705736
    Abstract: A diazotype sheet is developable solely by heat, the sheet comprising in at least one layer a heat-softenable, organic solvent-soluble resin, an acid-stabilized diazonium salt, at least one azo-coupler compound capable of reacting to form a dye, and an acid neutralizing component immobilized either by encapsulation or by coating as a separate layer with or without a binder. The sheet has incorporated therein at least one plasticizer which is either liquid at room temperature (i.e., 20.degree. to 25.degree. C.) or fusible at a temperature between room temperature and the development temperature.
    Type: Grant
    Filed: December 5, 1985
    Date of Patent: November 10, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Norman T. Notley
  • Patent number: 4687727
    Abstract: A light-sensitive planographic printing plate comprising a layer of a photo-polymerizable composition provided on at least one side of a base, wherein said photo-polymerizable composition comprises:(A) a polymer having at least one group represented by the general formula (I) ##STR1## wherein R.sub.1 to R.sub.5 each represent a member selected from the group consisting of a hydrogen atom, a halgen atom, a carboxyl group, a sulfo group, a nitro group, a cyano group, an amido group, an amino group and a substituted or unsubstituted alkyl group, aryl group, alkoxy gruop, aryloxy group, alkylamino group, arylamino group, alkylsulfonyl group and arylsulfonyl group and Z represents an oxygen atom, a sulfur atom, NH or NR, wherein R represents an alkyl group; and a carboxyl group on the side chain;(B) a monomer or oligomer having at least two polymerizable ethylenically unsaturated double bonds;(C) a photo-polymerization initiator, and(D) a diazo resin.
    Type: Grant
    Filed: September 9, 1985
    Date of Patent: August 18, 1987
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tadao Toyama, Kesanao Kobayashi, Mitsuru Koike, Koji Tamoto
  • Patent number: 4666817
    Abstract: A light-sensitive color-proofing sheet is described for producing an image on various substrates. A light-sensitive continuous color layer is releasably attached to a carrier. Overlaying the color layer is a water-insoluble transparent colorless barrier layer. On the opposite surface of the barrier layer is a thermally laminable adhesive layer. Upon lamination of the sheet to a substrate, removal of the carrier and exposure to actinic radiation, the color layer is formed into an image, photomechanically, by removal of the non-image areas.
    Type: Grant
    Filed: December 30, 1985
    Date of Patent: May 19, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Leonard W. Sachi
  • Patent number: 4656114
    Abstract: A light-sensitive color proofing sheet is described for producing an image on various substrates. A light-sensitive continuous color layer is releasably attached to a carrier. Overlying the color layer is a water-insoluble transparent colorless barrier layer. On the opposite surface of the barrier layer is a thermally laminable adhesive layer. Upon lamination of the sheet to a substrate, removal of the carrier and exposure to actinic radiation, the color layer is formed into an image, photomechanically, by removal of the non-image areas.
    Type: Grant
    Filed: August 9, 1985
    Date of Patent: April 7, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Barbara M. Cederberg, Arlene K. Musser
  • Patent number: 4618562
    Abstract: An improved negative working photographic element is prepared by coating a suitable substrate with a photosensitive composition comprising an admixture of two light sensitive diazonium salts and a binder composition comprising a polyvinyl acetate resin and a styrene/maleic acid half ester copolymer. Upon imagewise exposure of the element to actinic radiation through a suitable mask, the unexposed portions are removable with an aqueous alkaline developer.
    Type: Grant
    Filed: December 27, 1984
    Date of Patent: October 21, 1986
    Assignee: American Hoechst Corporation
    Inventors: John E. Walls, Shuchen Liu
  • Patent number: 4581308
    Abstract: The present invention relates to a photosensitive masking element for plate making including a support made of a transparent film; a metal thin film layer formed on the support; and a photosensitive masking layer formed on said metal thin film layer and strongly adhering thereto. In preparing masks for various colors, the photosensitive masking material of the present invention makes it unnecessary to fill and retouch ditches corresponding to unnecessary enclosing lines with a correction liquid, resulting in a marked improvement in the efficiency of plate making.
    Type: Grant
    Filed: August 21, 1984
    Date of Patent: April 8, 1986
    Assignee: Kimoto & Co., Ltd.
    Inventors: Takeo Moriya, Yamagata Toshio, Ogura Masako
  • Patent number: 4579811
    Abstract: Disclosed is a developer composition for exposed, light-sensitive, negative-working reproduction layers, which may contain an organic binder, comprising water and a salt of a substituted aromatic carboxylic acid, in particular, from about 5 to 60% by weight of at least one salt of an aromatic carboxylic acid having substituents which are immediately adjacent to the carboxyl group and represent an amino group, a hydroxyl group, and/or chlorine or bromine. Also disclosed is a process for developing the reproduction layers utilizing the disclosed developers, wherein the reproduction layer contains, in particular, a polymeric organic binder with an acetal, anhydride, amide and/or a carboxyl group.
    Type: Grant
    Filed: December 28, 1983
    Date of Patent: April 1, 1986
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Loni Schell, Werner Frass, Inge Gros
  • Patent number: 4578342
    Abstract: A presensitized lithographic plate is disclosed. The plate is comprised of a support base such as an aluminum support base having an anodized surface having a subbing layer positioned thereon which is coated with a light-sensitive layer. The light-sensitive layer is comprised of a diazo compound and a binder or comprised of a photopolymerizable composition. The subbing layer is comprised of a high molecular compound containing a sulfonic acid group-containing monomer units as recurring units. The subbing layer provides a lithographic plate which has greatly improved shelf life. The subbing layer increases the stability of the lithographic plate such that when the plate is stored it continues to be capable of producing copies which do not have stained background areas even when the plate is stored under adverse temperature and humidity conditions.
    Type: Grant
    Filed: December 2, 1983
    Date of Patent: March 25, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Toshiyuki Sekiya
  • Patent number: 4555468
    Abstract: A photosensitive material of the diazonium type which comprises a support, a precoat layer thereon and a photosensitive layer of a diazonium compound is improved by using a graft copolymer on a cellulose derivative as the precoat layer. A hydrophilic epoxy compound may be used in the precoat layer and a coupler and a benzenediazonium hexafluorophosphate derivative may be used in the photosensitive layer.
    Type: Grant
    Filed: May 1, 1984
    Date of Patent: November 26, 1985
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Takashi Yano, Masahiro Asami
  • Patent number: 4552827
    Abstract: An improved planographic printing plate comprised of a metal substrate, a sealing layer, an interlayer formed from a monomer or polymer of an organic compound having at least one cationic, quaternary substituted ammonium group, and a photosensitive layer on the surface of the interlayer. The printing plates are water developable and characterized by cleaner non-imaging areas during printing operations. The method of preparing such planographic printing plates is also described and illustrated.
    Type: Grant
    Filed: August 29, 1984
    Date of Patent: November 12, 1985
    Assignee: Polychrome Corp.
    Inventors: Nils Eklund, Jen-chi Huang
  • Patent number: 4539285
    Abstract: An improved resin coated substrate is prepared by coating a suitable substrate, such as aluminum with a composition comprising a salt having the structure A-N.sub.2.sup.+ X.sup.- wherein A is an aromatic or heterocyclic residue and X is an anion of an acid; and a binder composition comprising both an acrylic polymer and an acid containing acrylic copolymer.
    Type: Grant
    Filed: March 14, 1984
    Date of Patent: September 3, 1985
    Assignee: American Hoechst Corporation
    Inventors: Tulay Duyal, John E. Walls