Disposable (e.g., Collapsible Or Foldable Cardboard, Etc.) Patents (Class 96/85)
  • Patent number: 8372248
    Abstract: A water purification system having an oil and vapor separation subsystem for removing many heavy duty and toxic contaminants from the water. The subsystem removes volatile vapors from the feed water, heats the feed water, and by imparting a swirling vortex action to the heated water, the oils are separated from the water. The water separated from the oil is pumped by a high pressure pump through a helical coil that is heated to a high temperature by the burner. The high temperature, hot water is then fed to an expansion nozzle in an expansion chamber to flash the hot water into steam. The steam is passed through a condenser which converts the steam to purified water.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: February 12, 2013
    Inventor: Raymond C. Sherry
  • Patent number: 6368392
    Abstract: In a disclosed electric dust-collecting unit, needle electrodes face laterally against openings, so that a person in charge of replacement or maintenance/inspection of the electric dust-collecting unit can be prevented in safety from being injured on his fingers or body by needles. Therefore, this type of the electric dust-collecting unit can be applied in an air cleaner not only in offices but also in homes. In addition, this type of the electric dust-collecting unit does not employ a conventional box-pillar type needle support, so that its air flow path is not suppressed with a resultant remarkable decrease in a pressure loss, thus contributing to compacting of the electric dust-collecting unit and hence the air cleaner.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: April 9, 2002
    Assignee: O-Den Corporation
    Inventors: Shigemitsu Ohtake, Kiyomu Endo
  • Patent number: 5993521
    Abstract: A two-stage electrostatic filter includes an ionization section which is arranged in an upstream part of a throughflow passage (28) and includes a wire-like corona electrode (31) which is disposed in an ionization chamber (29) and connected to one pole of an electric high voltage source (16). The filter further includes a target electrode (21;37) which is spaced from the corona electrode (31) and connected to another pole of the high voltage source. A capacitator separator (30) is located in a downstream part of the throughflow passage (28) and includes a first and second group of electrode elements (32,33) which are placed side-by-side in spaced-apart relationship. The electrode elements (32) of the first group are placed alternately with the electrode elements (33) of the second group and are adapted to lie on a potential which is different from the potential on which the electrode elements (33) of the second group lie.
    Type: Grant
    Filed: June 6, 1997
    Date of Patent: November 30, 1999
    Assignee: TL-Vent AB
    Inventors: Andrzej Loreth, Vilmos Torok
  • Patent number: 4153458
    Abstract: A photographic binder prepared by heating a mixed aqueous solution of styrene-maleic anhydride copolymer, isobutylene-maleic anhydride copolymer and polyvinyl alcohol in acidic state makes it possible to coat a photographic coating liquid for forming photographic layers in the same manner as in the case of using gelatin and furthermore gives excellent physical properties to the resultant photographic layers.
    Type: Grant
    Filed: November 1, 1977
    Date of Patent: May 8, 1979
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Shigeru Iguchi, Tamotu Iwata, Tetsuo Yano
  • Patent number: 4147549
    Abstract: A lithographic printing plate is prepared from a layer of a photopolymerizable composition comprising an oleophilic macromolecular organic binder and a leachable hydrophilic ethylenically unsaturated compound by e posing the layer and then leaching the compound from the unexposed areas by treating with a suitable developing solvent, preferably water, producing an oleophilic surface. A similar plate may be prepared from a composition containing a hydrophilic binder and oleophilic leachable compound by imagewise exposure and solvent leaching producing an oleophilic surface in exposed areas and a hydrophilic surface in unexposed areas.
    Type: Grant
    Filed: June 22, 1977
    Date of Patent: April 3, 1979
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Robert P. Held
  • Patent number: 4146398
    Abstract: Acid-treated gelatin having a jelly strength of at least 250 g (in bloom) is added to silver halide emulsion layers, ultraviolet absorber layer, etc. which are coated on a resin coated paper and which contain high boiling point solvent, whereby deterioration of physical properties of surface of the photographic paper can be prevented.
    Type: Grant
    Filed: September 5, 1974
    Date of Patent: March 27, 1979
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Haruo Arase, Kenichi Yabuuchi
  • Patent number: 4145480
    Abstract: A polyolefin layer carried on at least one surface of a polyolefin resin coated paper for use as a photographic paper support, contains a titanium oxide composition comprising 20-60 parts by weight of a rutile-type titanium oxide and 40-80 parts by weight of an anatase-type titanium oxide per 100 parts by weight of the titanium oxide composition. Such polyolefin resin coated paper is excellent in hiding power, resolving power, light resistance, whiteness, fading resistance, etc.
    Type: Grant
    Filed: June 21, 1977
    Date of Patent: March 20, 1979
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: You Kusama, Yoshinori Harikae
  • Patent number: 4135932
    Abstract: Photographic film bases and sensitized photographic films are produced by coating a supporting film with an aqueous dispersion or a solution in an organic solvent of an essentially water-insoluble homopolymer and/or copolymer of styrene and/or a styrene derivative to form an adherent polymeric subbing layer which is then subjected to a surface modifying, e.g. corona discharge, treatment. Light-sensitive photographic emulsions adhere directly to the treated subbing layer without the need for an intermediate gelatin subbing layer.
    Type: Grant
    Filed: September 16, 1976
    Date of Patent: January 23, 1979
    Assignee: Bexford Limited
    Inventor: David R. Mann
  • Patent number: 4126464
    Abstract: Disclosed herein are non-pressure sensitive, heat sealable adhesive compositions having high bonding strengths at temperatures below 75.degree. C which consist essentially of a mixture of a block copolymer of a vinylbenzene and a conjugated diolefin, and a copolymer of an alkene and vinyl acetate. These adhesives are useful in a variety of radiation sensitive materials, but particularly in photographic materials such as photographic film units. In such units, they are particularly useful to bond barrier timing layers to other layers or substrates, but also may be used to bond other layers or substrates.
    Type: Grant
    Filed: June 10, 1977
    Date of Patent: November 21, 1978
    Assignee: Eastman Kodak Company
    Inventor: John R. Dann
  • Patent number: 4123277
    Abstract: A photographic element which comprises a resin film or resin coated paper support having superimposed thereon a layer of a composition comprising a copolymer containing therein the moiety of the general formula (I) ##STR1## wherein R.sub.1 and R.sub.2 each is a hydrogen atom or an alkyl group having 1 to 12 carbon atoms.
    Type: Grant
    Filed: March 24, 1977
    Date of Patent: October 31, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Takeji Ochiai
  • Patent number: 4119463
    Abstract: A photographic binder prepared by heating a mixed aqueous solution of styrene-maleic anhydride copolymer, isobutylene-maleic anhydride copolymer and polyvinyl alcohol in acidic state makes it possible to coat a photographic coating liquid for forming photographic layers in the same manner as in the case of using gelatin and furthermore gives excellent physical properties to the resultant photographic layers.
    Type: Grant
    Filed: April 20, 1976
    Date of Patent: October 10, 1978
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Shigeru Iguchi, Tamotu Iwata, Tetsuo Yano
  • Patent number: 4115125
    Abstract: A photograpic element having a pressure-sensitive adhesive layer for mounting of the element as desired, is protected by an ethylene polymer layer having a defined melt index and applied thereto by extrusion, with or without included antioxidant, at temperatures above 450.degree. F. As a consequence of the defined extrusion conditions, the protective ethylene polymer layer can be applied to form the element at high line speeds, and, when subsequently desired, peeled from the adhesive layer to which it is adhered by a force not exceeding 400 grams as defined. Ethylene polymers that are employed include polyethylene, and copolymers of ethylene with other monomers.
    Type: Grant
    Filed: May 9, 1977
    Date of Patent: September 19, 1978
    Assignee: Eastman Kodak Company
    Inventors: Doyle O. Etter, Irvin H. Crawford
  • Patent number: 4115127
    Abstract: A processing-free lithographic printing plate, which comprises a support having deposited thereon a composition containing germanium and sulfur and at least one of a metal or metal compound in a physically mixed state.
    Type: Grant
    Filed: March 11, 1977
    Date of Patent: September 19, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tomoaki Ikeda, Yuzo Mizobuchi, Akira Nahara, Yasuo Washizawa, Yoshihiro Ono, Takeshi Tomotsu
  • Patent number: 4113903
    Abstract: A method of multilayer coating in which a multilayer laminar bead of discrete fluids is coated on a moving web, and in which the layer adjacent the web has a substantially higher viscosity in the bead than at the point of contact with the web.
    Type: Grant
    Filed: May 27, 1977
    Date of Patent: September 12, 1978
    Assignee: Polaroid Corporation
    Inventor: Edward J. Choinski
  • Patent number: 4103072
    Abstract: There is disclosed a method of producing diazotype photoprinting material in which a base paper is withdrawn from a supply roll and transported through a precoating station in which a solution containing a silicon filler is applied to one side of the base paper; the paper is then transported from the precoating station past a plurality of heaters to a sensitizing station in which a solution containing a diazotype sensitizing compound is applied to one side of the base paper; the base paper is then transported past a second set of heaters to a transparentizing station in which a solution containing a water emulsion of a water clear synthetic organic resin is applied to the other side of the base paper simultaneously to render the base paper translucent and to decurl the paper; the paper is then transported past a third set of heaters to dry the paper to a moisture content of about 4% and finally is wound into a roll. A method of transparentizing any water absorbent natural fiber material is also disclosed.
    Type: Grant
    Filed: July 9, 1976
    Date of Patent: July 25, 1978
    Assignee: Weber-Valentine Company, Inc.
    Inventor: Irving R. Valentine
  • Patent number: 4097282
    Abstract: Disclosed herein are heat-activatable adhesive compositions comprising a water-soluble condensation polymer which is characterized by having a glycol component comprising one or more diols, preferably one of which is 1,4-bis(2-hydroxy-ethoxy)cyclohexane; and an acid component comprising greater than 15 and up to about 35 mole percent of at least one diacid or diester monomer having an iminodisulfonyl salt moiety, and from about 65 to about 85 mole percent of one or more other diacids or diesters. These adhesives are further characterized as having high bonding strengths at temperatures above 50.degree. C. They have been found useful in a variety of photographic materials, and particularly in image transfer film units.
    Type: Grant
    Filed: October 15, 1976
    Date of Patent: June 27, 1978
    Assignee: Eastman Kodak Company
    Inventors: John Michael Noonan, Robert Charles McConkey, Michael John Hanrahan
  • Patent number: 4078934
    Abstract: Leuco dye compositions containing a compound of the formula: ##STR1## wherein m = 0 or 1: Ar is an arylene or lower alkyl substituted arylene radical;R.sub.1 and R.sub.2, which may be the same or different, are lower alkyl or hydroxyalkyl groups, or ##STR2## R.sub.3 is H, lower alkyl, benzyl, R.sub.4, or ##STR3## R.sub.5 is H, a C.sub.3 -C.sub.6 alkyl group, an aryl group, ##STR4## wherein n=2-6; and R.sub.6 is a lower alkyl group or an aryl group. Where m = 1, the formula represents a colorless leuco compound; where m = 0, the formula represents the yellow dye derivative of the leuco. These compounds are particularly useful in photosensitive compositions.
    Type: Grant
    Filed: May 18, 1976
    Date of Patent: March 14, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John Fred Neumer
  • Patent number: 4069055
    Abstract: Cationic polymerization of epoxy resin such as epoxy monomers or prepolymers, can be achieved by use of certain radiation sensitive aromatic onium salts of Group Va elements. Curable compositions are provided which can be used as sealants, coating compounds, encapsulants, etc.
    Type: Grant
    Filed: December 9, 1975
    Date of Patent: January 17, 1978
    Assignee: General Electric Company
    Inventor: James V. Crivello
  • Patent number: 4065315
    Abstract: The free bases of various amino dyestuffs, such as the amino derivatives of triarylmethane and xanthene dyestuffs form stable solutions with organic halides and a matrix, such as a film-forming binder. Dry films of such compositions are lightly colored; upon exposure to actinic light, the dyestuffs become intensely colored. The combination of dyestuff free base and organic halide is particularly useful in conjunction with photopolymerizable compositions to denote the polymerized portions of a dry film photoresist and to enable the use of thicker films or coatings of liquid photopolymerizable compositions than were previously useful.
    Type: Grant
    Filed: April 26, 1976
    Date of Patent: December 27, 1977
    Assignee: Dynachem Corporation
    Inventors: Toshio Yamazaki, Harriet J. Cook, Melvin A. Lipson
  • Patent number: 4060656
    Abstract: A support for a photosensitive resin for use in making a printing plate using a liquid photosensitive resin, said support comprising a flexible self-supporting base plate and an adhesive layer formed thereon for applying a layer of the photosensitive resin, wherein said adhesive layer is a three-dimensional cured product containing 1 .times. 10.sup.-4 to 1 .times. 10.sup.-2 mol/gr. of the effectively photopolymerizable unsaturated carbon-to-carbon double bond, which has been formed from a composition consisting of (A) a compound containing at least two 1,2-epoxy groups in the molecule; (B) a compound selected from one of the group comprising (i) a compound containing an effectively photopolymerizable unsaturated carbon-to-carbon double bond and a 1,2-epoxy group in the molecule and having a boiling point of at least 120.degree. C.
    Type: Grant
    Filed: July 15, 1975
    Date of Patent: November 29, 1977
    Assignee: Teijin Limited
    Inventors: Kiyomi Naka, Teruo Takahashi
  • Patent number: 4053315
    Abstract: Direct-print images of improved stability against prolonged light-exposure are obtained in a photodevelopable element by spectrally sensitizing the photodevelopable emulsion, providing in the emulsion layer or a superposed layer a compound absorbing radiation in the inherent sensitivity range of the silver halide, and effecting image-wise exposure with radiation comprising light of the spectral range for which the silver halide has been spectrally sensitized.
    Type: Grant
    Filed: August 8, 1974
    Date of Patent: October 11, 1977
    Assignee: AGFA-GEVAERT, N.V.
    Inventors: Hendrik Alfons Borginon, Willy Joseph Vanassche
  • Patent number: 4042398
    Abstract: A process is provided to produce a novel photographic base by applying an aqueous coating composition containing aluminum oxide particles to at least one surface of a substrate, drying the coated substrate, applying a molten film of a polyolefin over at least one of the coated surfaces of the coated substrate, adhering the polyolefin to the coated surface, and cooling the polyolefin film to a temperature below the melt point of the polyolefin. The photographic base so produced may be further treated by applying a coating of a light sensitive silver halide emulsion to one side of the photographic base paper and drying the emulsion coated paper.
    Type: Grant
    Filed: October 20, 1975
    Date of Patent: August 16, 1977
    Assignee: Schoeller Technical Papers, Inc.
    Inventors: Peter H. Holm, William L. Quartz
  • Patent number: 4025346
    Abstract: A printing plate is coated with a composition comprising 20 to 50% saturated halogenated polyester, 10 to 45% polyacrylate, 5 to 15% metal acrylate and an effective amount of photoinitiator. The composition is applied in the form of a dispersion of the components in an inert organic solvent.
    Type: Grant
    Filed: December 31, 1975
    Date of Patent: May 24, 1977
    Assignee: Borden, Inc.
    Inventors: Frederick Edward Petke, John Nicholas Kirch, Michael Edward Gerkin
  • Patent number: 4024030
    Abstract: Process for preparing photographic materials yielding on imagewise exposure to radiation a direct positive image is provided, which comprises the deposition of a thin layer of catalytically active metal onto a carrier base on the surface of which has been deposited an intermediate adhesive layer or surface filled by the deposition thereon and in direct contact therewith of a second thin layer of a photosensitive inorganic compound capable of reacting catalytically with the metal layer when activated upon exposure to radiation, so that the metal layer is destroyed on the illuminated areas but remains intact on the nonilluminated areas of the photographic material, creating in this way a direct positive metal image, capable of being stabilized and intensified.
    Type: Grant
    Filed: October 29, 1974
    Date of Patent: May 17, 1977
    Assignee: Institute po Phisikohimia pri Bulgarska Akademia na Naukite
    Inventors: Atanas Tzvetanov Burov, Penka Atanasova Simidjieva, Rumyana Toteva Stoicheva, Jordan Petrov Malinovski
  • Patent number: 4019907
    Abstract: A photosensitive color-forming element comprises a support and a photosensitive color-forming layer formed on said support and containing therein at least one photosensitive color-forming azido compound of the formula ##STR1## wherein [A] is a benzene ring or naphthalene ring, R.sub.1 and R.sub.2 each is a hydrogen or halogen atom or alkyl, alkoxyl, dialkylamino, acyl, acylamino, nitro or hydroxyl radical, and R.sub.3 is a hydrogen or halogen atom, or alkyl, alkoxyl, nitro, carboxyl, alkylcarboxyl, dialkylcarbamoyl, sulfonic acid, dialkylaminosulfonyl, alkylsulfonyl or acyl radical or a group of the formula (II), (III), (IV) or (V): ##STR2## in which formula X is an --O-- bonding or --NH-- bonding.[B] is a benzene ring or naphthalene ring, and R.sub.4 and R.sub.
    Type: Grant
    Filed: October 17, 1974
    Date of Patent: April 26, 1977
    Assignees: Hodogaya Chemical Co., Ltd., Oji Paper Co., Ltd.
    Inventors: Takahiro Tsunoda, Minoru Ozutsumi, Shigeo Maeda, Susumu Suzuka, Hidetoshi Komiya, Hideaki Shinohara
  • Patent number: 4019909
    Abstract: A photohardenable thermoplastic stratum containing a thermally activated blowing agent may be used to record images by imagewise exposing the stratum to actinic radiation adapted to polymerize and harden the stratum image-wise, and heating the exposed stratum to soften the unhardened areas and decompose the blowing agent, whereby a positive image of microscopic bubbles is formed in said stratum.
    Type: Grant
    Filed: June 21, 1972
    Date of Patent: April 26, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Abraham Bernard Cohen, Leo Roos
  • Patent number: 4008087
    Abstract: A photographic light-sensitive material comprising a support having thereon at least one silver halide photographic layer and at least one layer containing a styrene-maleic acid copolymer in which about 10 to 70 mol % of the carboxylic acid groups of the styrene-maleic acid copolymer is esterified with a compound represented by the following formula (I) ##STR1## wherein R represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms or a phenyl group, and n is 1 or 2.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: February 15, 1977
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masazumi Aono, Shuichi Shindo, Takushi Miyazako
  • Patent number: 4004927
    Abstract: A photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and with at least one photographic layer of the photographic light-sensitive material containing a liquid organopolysiloxane having therein at least one siloxane unit, in which (1) a methyl group and (2) an alkyl group, a cycloalkyl group, an alkoxyalkyl group, an aralkyl group, an aryloxyalkyl group or a 2,3-epoxypropyloxyalkyl group with each group having at least 5 carbon atoms are attached to the silicon atom of the siloxane unit.
    Type: Grant
    Filed: February 3, 1975
    Date of Patent: January 25, 1977
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Yamamoto, Kiyotaka Hori, Masakazu Yoneyama, Yasuhiro Nakayama, Akira Abe
  • Patent number: 4003747
    Abstract: A photosensitive color-forming element comprises a support and a photosensitive color-forming layer carried on the support and containing therein a color-forming coupler, for example, 1-naphthol, 2-naphthol and 2,4-dichloro-1-naphthol, and a photosensitive azido compound of the formula (I) or (II): ##STR1## wherein R.sub.1 represents a hydrogen or halogen atom or an alkyl, alkoxyl, diethylamino or hydroxyl radical R.sub. 2 an alkyl, alkoxyl or hydroxyl radical, and R.sub.3 a hydrogen atom or an alkyl or phenyl radical, and, if necessary, a polymeric material capable of hardening or being insolubilized in solvent when the polymeric material is exposed to radiation rays in the presence of the above azido compound, the above-mentioned azido compound and color-forming coupler being capable of forming a dark color upon exposure to radiation rays, without a color-developing agent.
    Type: Grant
    Filed: September 4, 1975
    Date of Patent: January 18, 1977
    Assignees: Hodogaya Chemical Co., Ltd., Oji Paper Co., Ltd.
    Inventors: Takahiro Tsunoda, Minoru Ozutsumi, Shigeo Maeda, Susumu Suzuka, Hidetoshi Komiya
  • Patent number: 4001024
    Abstract: The simultaneous high speed application of a plurality of liquid coating compositions to a moving web by the method of multi-layer bead coating is improved by coating the lowermost layer as a thin layer formed from a low viscosity coating composition and coating the layer immediately above the lowermost layer as a thicker layer of higher viscosity such that vortical action of the coating bead is confined to the lowermost layer and the layer immediately above it. By this means, intermixing of the coating composition forming the lowermost layer with the coating composition forming the layer immediately above it occurs, but all other layers are coated in discrete form. The method is especially useful in the manufacture of multi-layer photographic films and papers.
    Type: Grant
    Filed: March 22, 1976
    Date of Patent: January 4, 1977
    Assignee: Eastman Kodak Company
    Inventors: Donald Allen Dittman, Francis Armand Rozzi
  • Patent number: 3980478
    Abstract: Images are recorded on ultraviolet-light sensitive recording materials employing photographic intermediates which function optically to reflect visible light and transmit ultraviolet light. To give the intermediates the desired optical function, a polyolefin compounded with certain white pigments is included as a sublayer between the paper support sheet and photosensitive layer.
    Type: Grant
    Filed: July 5, 1974
    Date of Patent: September 14, 1976
    Assignee: Eastman Kodak Company
    Inventors: Irvin H. Crawford, Ronald A. Wellman
  • Patent number: 3977878
    Abstract: Photopolymerizable compositions and processes for photopolymerizing such compositions are provided, said process comprising admixing with said epoxides, photosensitive organohalogen compounds in combination with an organometallic compound and thereafter applying energy to the resulting mixture. The organohalogens decompose to liberate an active catalyst which then serves to initiate polymerization of the epoxide material. The organometallic compound functions synergistically with the organohalogen to enhance the film forming properties of the resulting polymer and or sensitivity of the polymerizable system.
    Type: Grant
    Filed: February 26, 1975
    Date of Patent: August 31, 1976
    Assignee: American Can Company
    Inventor: Jerome Roteman
  • Patent number: 3959528
    Abstract: A method of coating liquid coating compositions on a moving continuous web comprising roughening only the surface of a portion of the smooth web surface onto which coating is started. The method of this invention avoids the production of a thick coating to thereby prevent contamination in the steps and the process and requires no excess increase in drying, and the method is especially advantageous in the manufacture of photographic films, photographic papers, magnetic recording tapes, adhesive tapes, pressure sensitive recording papers, offset printing papers, etc.
    Type: Grant
    Filed: December 19, 1974
    Date of Patent: May 25, 1976
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideo Takeda, Nobuhiko Oyama
  • Patent number: 3959546
    Abstract: A polyolefin coated photographic base paper having a silk-like textured surface is prepared by extrusion coating the polyethylene on the photographic paper and, while the polyolefin is still plastic, forming the surface of the polyolefin on an engraved chill roll. Pattern depths of 0.4 to 0.7 mils can be produced on the polyolefin surface by this process using polyolefin films as thin as one mil.
    Type: Grant
    Filed: April 15, 1974
    Date of Patent: May 25, 1976
    Assignee: Schoeller Technical Papers Company
    Inventor: John A. Hill
  • Patent number: 3957492
    Abstract: A photographic emulsion containing a novel amphoteric copolymer which comprises:A. 0.5 to 30 mole % of cation-site containing repeating units of the formula (I) ##EQU1## wherein R.sub.1 represents a hydrogen atom or a methyl group and n is 1, 2, 3 or 4;B. 0.5 to 30 mole % of anion-site containing repeating units of the formula (II) ##EQU2## wherein R.sub.2 represents a hydrogen atom or a methyl group, and X represents ##SPC1##--COOM, --SO.sub.3 M or --COO(CH.sub.2).sub.m SO.sub.3 M, where M is a cation and m is 3 or 4; andC. the balance of repeating units of the formula (III) ##EQU3## wherein R.sub.3 represents a hydrogen atom or a methyl group, R.sub.4 and R.sub.5 each represents a hydrogen atom or a lower alkyl group or a substituted alkyl group thereof. The novel amphoteric copolymer can be substituted partly or entirely for the gelatin in a photographic emulsion, with excellent photographic effects.
    Type: Grant
    Filed: January 7, 1974
    Date of Patent: May 18, 1976
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takushi Miyazako, Nobuo Tsuji, Tohru Sueyoshi, Yasuo Inoue
  • Patent number: 3955984
    Abstract: A silver halide photographic light-sensitive member comprising a support having on one side of the support at least one silver halide photographic emulsion layer and on the other side of the support at least one layer containing at least one dye represented by the general formula (I): ##SPC1##wherein Z is a group of atoms required for forming an indolenine nucleus or benzindolenine nucleus; R.sup.1 is a lower alkyl group or a lower alkenyl group; R.sup.2 is an --OXSO.sub.3 .sup.- group or an ##EQU1## group wherein X is an alkylene group or an alkenylene group, and Y is a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an acyl group, or an --OXSO.sub.3 .sup.- group; R.sup.3 is a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, a hydroxy group, an alkoxy group, an alkylthio group, a carboxy group, an alkoxycarbonyl group, an alkoxycarbonylamino group, or an acylamino group; and p is an integer of 1 or 2.
    Type: Grant
    Filed: April 18, 1975
    Date of Patent: May 11, 1976
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Teruo Kobayashi, Tohru Sueyoshi, Masatoshi Sugiyama, Hiroshi Sawaguchi
  • Patent number: 3953545
    Abstract: New polymers and copolymers containing silver and/or copper, useful e.g. in manufacturing dialysis and filtration membranes, ion exchangers, light sensitive layers, catalysts and hydrophilic coatings, are prepared from copolymers or polymer mixtures containing both nitrile groups and strong acidic groups, by bringing them in contact with monovalent silver or copper ions or with their mixtures. Silver and/or copper are attached to nitrile groups by secondary valences, thus forming complex compounds. The probable formulae of the complex groups are: --CN.Ag.sup.+ or perhaps --CN.Ag.sup.+.NC-- and --CN.Cu.sup.+ or perhaps --CN.Cu.sup.+.Cu.sup.+.NC-- , the complex cations forming polymeric salts with strong acidic groups of the same or of an adjoining macromolecule, to which all said nitrile and strongly acidic groups are attached as substituents.
    Type: Grant
    Filed: March 15, 1973
    Date of Patent: April 27, 1976
    Inventor: Arthur Stoy
  • Patent number: 3951657
    Abstract: A photopolymerizable element for the preparation of relief printing plates. The element comprises an addition polymerizable monomer (e.g. trimethylolpropane trimethacrylate), a free radical initiator for polymerizing the monomer (e.g. benzophenone) and a polyester-based polyurethane binding agent which is the reaction product of 4,4'-methylenebis(phenyl isocyanate), a polycaprolactone diol having a molecular weight in the range of 1,000 to 2,500, and a mixture of at least two aliphatic diol extenders. Optionally the photopolymerizable element is provided with a support layer such as a polyester film or paper.Processes for the preparation of relief printing plates from said elements are also disclosed.
    Type: Grant
    Filed: July 16, 1975
    Date of Patent: April 20, 1976
    Assignee: The Upjohn Company
    Inventors: Frank P. Recchia, Tilak M. Shah
  • Patent number: 3950169
    Abstract: A recording material is described, which comprises a support of paper or of synthetic polymer and an electroconductive layer on at least one side of the support. The surface resistance of this electroconductive layer is not more than 10.sup.11 ohms per sq. at a relative humidity of 15%. The layer consists or includes a major proportion of a water-soluble polymer resulting from the amino alkylation of polyethyleneimine with an epoxy compound bearing a quaternary ammonium end group.The electroconductive layers may be used as antistatic layers in a photographic silver halide recording material. When covered with a photoconductive coating the electroconductive layer may be used in electrophotographic recording materials. When an insulating layer is applied on the electroconductive layer an electrographic recording material is formed.
    Type: Grant
    Filed: January 3, 1975
    Date of Patent: April 13, 1976
    Assignee: AGFA-GEVAERT N.V.
    Inventors: Daniel Maurice Timmerman, Walter Frans De Winter
  • Patent number: 3945830
    Abstract: A dry presensitized planographic plate composed of a support having coated thereon one or two layers of (a) a silicone rubber, (b) a photosensitive azide compound, (c) a cyclized rubber, and (d) a copolymer of vinylidene chloride and acrylonitrile, the uppermost layer, when the planographic plate has two layers, containing at least the component (a) and (b) and the lower layer containing at least the component (c).
    Type: Grant
    Filed: December 20, 1973
    Date of Patent: March 23, 1976
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kenichiro Yazawa, Shinzo Kishimoto, Shizuo Miyano, Asaji Kondo
  • Patent number: 3938999
    Abstract: An antistatic photographic sensitive material comprising a support having thereon at least one silver halide emulsion layer, wherein a surface active copolymer containing in the main chain a repeating unit represented by the formula (I) ##EQU1## wherein Y represents an organic residue having 4 to 22 carbon atoms; n represents the average number of ethyleneoxy units and is 1 to 100; and M represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, an ammonium group or an alkylammonium group is present in at least one of a surface of the support and a photographic layer.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: February 17, 1976
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Yoneyama, Nobuo Yamamoto, Naohiko Sugimoto, Ikutaro Horie, Yasuhiro Nakayama
  • Patent number: 3936304
    Abstract: When titanium phosphate is used as a white pigment to an article of which surface comprises polyolefin composition, the article is remarkably whitened.
    Type: Grant
    Filed: October 12, 1973
    Date of Patent: February 3, 1976
    Inventors: Tsuneo Kasugai, Nobuhiko Minagawa, Yasushi Hamada, Yujiro Sugahara, Hiroyuki Naito
  • Patent number: 3933503
    Abstract: A carrier for transferring images comprising a paper treated with a release agent and coated with a binder emulsion, the binder being chiefly based on nitrile butadiene rubber obtained by copolymerization of butadiene and acrylonitrile.
    Type: Grant
    Filed: May 6, 1974
    Date of Patent: January 20, 1976
    Inventor: Herman Schonberg
  • Patent number: 3930860
    Abstract: A light-sensitive silver halide material for the high temperature and rapid color development at least 30.degree.C, which light-sensitive silver halide material comprises at least one spectrally sensitized silver halide photographic emulsion layer, the emulsion layer containing at least one sensitizing dye having an halogen ion concentration increasing effect.
    Type: Grant
    Filed: January 2, 1974
    Date of Patent: January 6, 1976
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keisuke Shiba, Masanao Hinata, Seiiti Kubodera
  • Patent number: RE29255
    Abstract: Acrylic polymer layers and colloidal silver halide photographic emulsions are coated to form layers without repellent spots from solutions containing a perfluoro compound .[.containing an intralinear carbonyl or sulfonyl group selected from the group: (1) perfluorocarbon compounds derived from perfluorocarboxylic acids having the general structure ##STR1## where C.sub.f is a fully fluorinated (perfluoro) saturated chain consisting of five or more carbon atoms which may or may not be an oxygen-interrupted carbon chain; X=OY or an amino group, where Y is H, alkali metal or an ammonium group, and (2) perfluoro compounds.]. derived from perfluorosulfonic and perfluorosulfuric acids having the general structure(C.sub.f).[..sub.x .]. (C.sub.H).sub.y (X)(Z)where C.sub.f is a fully fluorinated .Iadd.(perfluoro) saturated .Iaddend.carbon chain .[.as defined in paragraph (1).]. .Iadd.having six or more carbon atoms which may or may not be an oxygen-interrupted carbon chain.Iaddend.; C.sub.
    Type: Grant
    Filed: May 25, 1973
    Date of Patent: June 7, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Maurice James McDowell