Patents Examined by Jack P. Brammer
  • Patent number: 5374510
    Abstract: A support material for light sensitive materials is disclosed which has an anticurl layer on the back which contains at least a hardening agent and a bone gelatin that has been degraded by enzymatic action, and the gelatin has more than 40% low molecular fractions having a molecular weight of less than 100,000 and a gel strength of 200-250 g Bloom.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: December 20, 1994
    Assignee: Felix Schoeller, Jr. Papierfabriken
    Inventors: Horst Westfal, Andreas Diekmann
  • Patent number: 5374496
    Abstract: An image forming method is conducted by subjecting a dry silver salt image forming medium to imagewise exposure and heating to form a light-absorbing organic compound. Thereafter, the medium is subjected to polymerization exposure to imagewise polymerize the medium based on the formation pattern of the light-absorbing compound. The light-absorbing organic compound has specific sensitivities to light in order to maximize contrast.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: December 20, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Kagami, Akihiro Mouri, Masato Katayama, Kazuo Isaka, Tetsuro Fukui, Susumu Nakamura, Masao Suzuki
  • Patent number: 5374509
    Abstract: A photographic element is provided which readily absorbs aqueous solution during processing and yet readily liberates the water during drying. The photographic element comprises a support; at least one layer coated on said support wherein said layer comprises:(a) hydrophilic colloid;(b) a branched polysaccharide;(c) a polyacrylamide; andat least one of either (d) or (e):(d) a mixture of polyvinylidene chloride and polyacrylate; or(e) a copolymer of vinylidene chloride and acrylate.
    Type: Grant
    Filed: May 4, 1994
    Date of Patent: December 20, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Jose Valentini
  • Patent number: 5372924
    Abstract: Antistatically treated plastic moldings which contain two layers on the surface to be antistatically treated, the layer situated nearer the plastic surface being an antistatic layer and the more remote layer being a protective layer of a radiation-curing coating composition which is cured by exposure to ionizing radiation, are distinguished by excellent antistatic properties and very good surface properties.
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: December 13, 1994
    Assignee: Agfa Gevaert Aktiengesellschaft
    Inventors: Dirk Quintens, Wolfgang Fischer, Friedrich Jonas, Holger Ohst, Hans Rehbein, deceased
  • Patent number: 5372922
    Abstract: A method of preparing a photographic element containing a UV filter composition. In the method a UV absorbing polymer latex is prepared by emulsion polymerization, then loaded with a high boiling point organic solvent. The high boiling poing organic solvent has a boiling point at atmospheric pressure of at least 200.degree. C. The loaded polymer latex is then incorporated into a photographic element. Photographic elements containing UV polymer latexes particularly of a UV absorbing polymer containing benzotriazole monomers loaded with high boiling point organic solvents, are also provided.
    Type: Grant
    Filed: December 29, 1993
    Date of Patent: December 13, 1994
    Assignee: Eastman Kodak Company
    Inventors: Edward Schofield, Tienteh Chen
  • Patent number: 5372925
    Abstract: Disclosed is a film constituted of a polyester, said film having a degree of roll set curl of not higher than 135 m.sup.-1 after being subjected to heat treatment, and having a degree of recovery curl of not higher than 45 m.sup.-1 after being subjected to hot water bath treatment.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: December 13, 1994
    Assignee: Konica Corporation
    Inventors: Hideyuki Kobayashi, Takatoshi Yajima, Kenji Nakanishi, Hiromitsu Araki, Hiroshi Naito, Yoshioki Okubo, Tetsutaro Hashimura
  • Patent number: 5372910
    Abstract: A process for preparing images on a tonable, light-sensitive layer using a transfer layer containing at least 20 percent by weight of a toner and a polymer with a maximum tensile strength of at least 2 N/mm.sup.2 as a binder. The pigmented transfer layers can be used in color proofing processes requiring high resolution, reproducible color density and low dot gain.
    Type: Grant
    Filed: November 3, 1993
    Date of Patent: December 13, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Bernhard Metzger, Helmet H. Frohlich
  • Patent number: 5370968
    Abstract: Photocurable elements which are useful for preparing flexographic printing plates are provided which comprise a printing layer and a contiguous base layer, the printing layer comprising about 40 to 95 parts by weight of an elastomeric block copolymer, about 5 to 60 parts by weight of a second elastomeric polymer which is incompatible with the block copolymer, a photopolymerizable monomer, and a photoinitiator. The printing layer preferably also comprises an actinic radiation scattering and absorbing pigment.Also provided are relief printing plates prepared from the photocurable elements. The printing plates have a tack-free surface having excellent ink transfer properties, abrasion resistance, and solvent resistance. A high level of exposure latitude may also be provided in the photocurable elements of the invention.
    Type: Grant
    Filed: February 15, 1994
    Date of Patent: December 6, 1994
    Assignee: W.R. Grace & Co.-Conn.
    Inventors: William K. Goss, Michael W. Yang
  • Patent number: 5370980
    Abstract: Disclosed is a silver halide photographic light-sensitive material comprising a support having thereon a hydrophilic colloidal layer comprising at least one silver salt of a compound having at least one acid group in the molecule, and the compound is represented by Formula I, Formula II or Formula III: ##STR1## wherein R.sup.1 and R.sup.2 independently represent a hydrogen atom or a group selected from the group consisting of an alkyl group, an alkenyl group, an aryl group and a heterocyclic residue; L.sub.1, L.sub.2, L.sub.3 and L.sub.4 independently represent a methine group; n.sub.1 is an integer of 0 to 3; n.sub.2 is an integer of 0, 1 or 2 and R.sup.3 represents an alkyl group or an alkenyl group. Q.sub.1 represents a non-metal atom group necessary to complete a 5-membered or 6-membered heterocyclic ring; ##STR2## wherein R.sup.4 and R.sup.
    Type: Grant
    Filed: October 21, 1993
    Date of Patent: December 6, 1994
    Assignee: Konica Corporation
    Inventors: Taketoshi Yamada, Yasushi Usagawa, Akira Onishi, Yoshiko Ogawa, Shigeto Hirabayashi
  • Patent number: 5370969
    Abstract: The invention provides a trilayer structure and photolithographic method which permits use of high-resolution optics with a relatively small depth of focus for patterning a substrate. A trilayer lithographic structure in accordance with the invention comprises: (a) an out-gas resistant planarization layer deposited on a substrate; (b) a chemical-vapor-deposited interfacial film formed on the planarization layer; and (c) a photosensitive resist layer of a thickness equal to or less than one micron deposited on the interfacial film. A method in accordance with the invention comprises the steps of: (a) depositing an out-gas resistant planarization layer on a substrate; (b) chemical-vapor-depositing an interfacial film on the planarization layer; and (c) forming a photosensitive resist layer of a thickness equal to or less than one micron on the interfacial film.
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: December 6, 1994
    Assignees: Sharp Kabushiki Kaisha, Sharp Microelectronics Technology, Inc.
    Inventor: David A. Vidusek
  • Patent number: 5368987
    Abstract: This invention provides a process for producing a resist composition in which the content of relatively large undissolved particles is low just after production of the composition and the content of relatively large undissolved particles increases only to a small extent even if the composition is stored for a long period of time. Thus, this invention provides a process for producing a resist composition which comprises filtering a mixture of an alkali-soluble resin, a radiation-sensitive compound and a solvent by the use of a filter of which pore diameter is 0.1 .mu.m or below and of which particle-removing performance is 99% or above. Further, this invention provides also a resist composition comprising an alkali-soluble resin, a radiation-sensitive compound and an organic solvent not simultaneously having both acetoxy group and alkoxy group in its molecule, said composition containing undissolved particles having a particle diameter of 0.25 .mu.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: November 29, 1994
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Yukio Hanamoto, Hiroshi Takagaki, Ayako Ida
  • Patent number: 5368995
    Abstract: Imaging elements, such as photographic, electrostatographic and thermal imaging elements, are comprised of a support, an image-forming layer and an electrically-conductive layer comprising a dispersion in a film-forming binder of fine particles of an electronically-conductive metal antimonate. Use of metal antimonate particles provides a controlled degree of electrical conductivity and beneficial chemical, physical and optical properties which adapt the electrically-conductive layer for such purposes as providing protection against static or serving as an electrode which takes part in an image-forming process.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: November 29, 1994
    Assignee: Eastman Kodak Company
    Inventors: Paul A. Christian, Charles C. Anderson
  • Patent number: 5368997
    Abstract: A silver halide photographic material comprises a support and at least one silver halide emulsion layer provided thereon. The support is essentially composed of poly(ethylene-2,6-naphthalate) and has Young's modulus of 550 to 650 kg/mm.sup.2 in both lengthwise direction and widthwise direction and breaking elongation of not less than 70%.
    Type: Grant
    Filed: March 11, 1994
    Date of Patent: November 29, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Fumio Kawamoto
  • Patent number: 5366854
    Abstract: Disclosed is a photographic printing paper comprising a raw paper which has on the emulsion side a resin coating constituted of polyethylene terephthalate or a resin blend of polyethylene terephthalate and another resin and titanium oxide grains dispersed therein and on the back side a resin coating constituted of the same polyethylene terephthalate or resin blend as used in the resin coating on the emulsion side and inorganic grains having an average grain size of from 1.5 to 12 .mu.m.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: November 22, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takahito Miyoshi, Yasuo Nishikawa, Takanori Sato, Sugihiko Tada
  • Patent number: 5366855
    Abstract: An imaging element comprising a support, a light-sensitive layer and an antistat layer, the antistat layer being overcoated with a protective layer of a coalesced layer of film-forming colloidal polymeric particles and non-film-forming colloidal polymeric particles.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: November 22, 1994
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Yongcai Wang
  • Patent number: 5364752
    Abstract: A recording material comprising a sheet, ribbon or web support and a hydrophilic colloid binder layer incorporating an ionic copolymer in the form of dispersed particulate material providing to said material an antistatic character, characterized in that said ionic copolymer is a cross-linked addition copolymer wherein at least 30 mole % of its recurring units are recurrring units containing a sulphonic acid salt group that has been obtained via a reaction of propane sultone or butane sultone with carboxylate salt groups present originally in recurring units of said copolymer.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: November 15, 1994
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Daniel M. Timmerman, Hubert Vandenabeele
  • Patent number: 5364737
    Abstract: A waterborne photoimageable composition or photoresist comprises a latex binder polymer having sufficient carboxylic acid functionality to render it developable in alkaline aqueous solution, a photopolymerizeable monomer fraction, a photoinitiator and a polyether polyurethane associate thickener which supports an emulsion of the monomer fraction in aqueous medium. The carboxylic acid functionality of the latex binder polymer is neutralized at from 0 to about 20%.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: November 15, 1994
    Assignee: Morton International, Inc.
    Inventor: Robert K. Barr
  • Patent number: 5364751
    Abstract: A plastic film material comprising a layer is disclosed, the layer containing in admixture a binder and particles comprising a compound in an amount of 70% or more by weight of the particles, the particles having a volume specific resistance of not more than 10.sup.9 .OMEGA.cm and the compound comprising an element selected from the group consisting of H, B, C, N, O, F, P, S and Cl.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: November 15, 1994
    Assignee: Konica Corporation
    Inventors: Yasuo Kurachi, Kaoru Yaegashi, Yoichi Siato, Yoshihiro Wada, Akihisa Nakajima
  • Patent number: 5362605
    Abstract: A photocurable composition useful in preparing water-developable, solid printing plates is prepared by blending a urethane (meth)acrylate prepolymer with a complexing polymer based on poly(vinyl pyrrolidone) composition. The resulting composition is suitably formulated with additional photoactive (meth)acrylate monomers or oligomers and photoinitiator for casting or extrusion on a substrate to form a flexographic printing plate. Following UV exposure of the plate through a negative, unexposed areas can be removed by washing with aqueous media, to give a plate with a desirable relief image. The use of the aqueous washout solution as opposed to organic solvents minimizes pollution problems. The use of the complexing polymer significantly reduces the cold flow of the uncured plate and both increases toughness and reduces tack of the cured plate.
    Type: Grant
    Filed: May 10, 1993
    Date of Patent: November 8, 1994
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Srinivas K. Mirle, Truc-Chi T. Huynh-Tran
  • Patent number: 5362612
    Abstract: A photographic material is disclosed comprising a support, at least one silver halide emulsion layer, and optionally one or more non-photosensitive hydrophylic layer(s), characterized in that at least one of said emulsion layer(s) and/or non-photosensitive layer(s) contains a triphenylmethane dye, absorbing around 670 nm, represented by general formula (ID): ##STR1## wherein R.sup.1 and R.sup.2 each independently represents hydrogen unsubstituted or substituted alkyl, or unsubstituted or substituted aryl, R.sup.3 represents an electron-withdrawing group, and the substance contains at least two water-solubilizing groups, and X.sup.- represents an anion, or an intramolecular anionic group.The triphenylmethane dyes can serve as filter dye, acutance dye, or anti-halation dye. The claimed photographic materials are especially suited for exposure by a laser diode emitting at 670 nm.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: November 8, 1994
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Eric Kiekens, Paul Callant, Roland Claes