Polyester Or Polycarbonate Patents (Class 430/533)
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Patent number: 4363871Abstract: A multi-layer light-sensitive photographic material comprising a support and a light-sensitive layer, which have a surface layer which does not adhere even under a high temperature and high humidity conditions when the front surface layer thereof is contacted with the other surface layer and which is hardly subject to scratching and free from the so-called "blooming" phenomenon.The light-sensitive material according to this invention comprises, in at least one of the front and back sides thereof, at least one light-insensitive layer containing a high polymer having at least 20% by weight of a repeating unit represented by the formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom or a methyl group, and R.sup.2 represents a straight chain alkyl group having 12 to 24 carbon atoms.Type: GrantFiled: April 27, 1981Date of Patent: December 14, 1982Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Toshiaki Shibue, Koichi Nagayasu, Tohru Kobayashi, Kouji Tokitou
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Patent number: 4355099Abstract: For the production of positive photographic prints a composite material in strip form is used as an intermediary to form the print images and is then adhered in a continuous procedure to a main support strip such as paper. The resultant strip is then cut to separate the individual prints. The composite material has a transparent film of biaxially-oriented plastics film not more than 50.mu. thick and water-resistant and to which photosensitive emulsions are applied, and a further layer overlying the emulsions to protect them, the further layer being adhered to the main support. This layer is reflective, as by incorporation of a white pigment, so that the image is seen through the transparent film against the background of this layer rather than the main support. The reflective layer may contain other chemicals relevant to processing.Type: GrantFiled: November 29, 1981Date of Patent: October 19, 1982Assignee: Ciba-Geigy AGInventor: Franz Trautweiler
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Patent number: 4347307Abstract: A thermally processable imaging element and method are disclosed, wherein dimensional changes after thermal processing for about 5 seconds at a temperature of about 125.degree. C., do not exceed .+-.0.03%. The imaging element features an amine-generating and an amine-responsive composition. The method features preheating the element prior to exposure to dimensionally stabilize it.Type: GrantFiled: August 3, 1981Date of Patent: August 31, 1982Assignee: Eastman Kodak CompanyInventors: Raymond F. Limoges, Anthony A. Scribani, Robert J. Wilson
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Patent number: 4340657Abstract: Photopolymerizable compositions comprised of (I) novel polymers which are substantially comprised of the reaction products of (A) organic polyisocyanates and (B) organic compounds containing at least about two active hydrogen atoms per molecule, said polymers having been end-capped by reaction with (C) organic compounds containing exactly one active hydrogen atoms and said end-capped polymers having viscosities of from about 5 to about 70 stokes when measured as a 30% solution in a mixture of approximately equal parts of xylol, methyl ethyl ketone and ethylene glycol monomethyl ether, at 25.degree. C., (II) addition polymerization initiators activatable by actinic light, (III) addition polymerizable ethylenically unsaturated components capable of forming polymers by photoinitiated polymerization in the presence of the initiators, and (IV) a natural or synthetic rubber.Type: GrantFiled: March 9, 1981Date of Patent: July 20, 1982Assignee: Polychrome CorporationInventor: William Rowe
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Patent number: 4330604Abstract: 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: GrantFiled: August 4, 1980Date of Patent: May 18, 1982Assignee: Hughes Aircraft CompanyInventors: John E. Wreede, Andrejs Graube, Mark A. Mulvihill
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Patent number: 4329423Abstract: Improvements in coated film bases. Photobase comprising a film support, e.g. a polyethylene terephthalate film, having a copolymeric subbing layer comprising a copolymer of acrylic acid or an alkyl ester thereof/methacrylic acid or an alkyl ester thereof/itaconic acid or itaconic anhydride, e.g. an ethyl acrylate/methyl methacrylate/itaconic acid copolymer, and containing free itaconic acid, half ester or anhydride which is directly adherent to light-sensitive photographic emulsions.Type: GrantFiled: October 22, 1980Date of Patent: May 11, 1982Assignee: Imperial Chemical Industries LimitedInventors: Cyril J. Ealding, Graham Jarrett
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Patent number: 4329409Abstract: 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: GrantFiled: August 4, 1980Date of Patent: May 11, 1982Assignee: Hughes Aircraft CompanyInventors: John E. Wreede, Andrejs Graube
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Patent number: 4317875Abstract: This invention relates to a recording material containing diazo compounds, in particular a microfilm, comprising a film base which is at least partially pervious to visible radiation, a light-sensitive layer and, on the reverse side of the film base, a filter layer which absorbs light in the long-wave ultraviolet spectral range and in the short-wave visible spectral range, wherein the filter layer is composed of a polymer which is insoluble or has been rendered insoluble by cross-linking, and of at least one yellow to orange-colored dye which is compatible with the constituents of the polymer and absorbs light in the range between about 360 nm and about 500 nm. The invention also relates to a process for the manufacture of a recording material.Type: GrantFiled: October 27, 1980Date of Patent: March 2, 1982Assignee: Hoechst AktiengesellschaftInventors: Siegfried Scheler, Klaus Thoese
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Patent number: 4308342Abstract: A thermally processable imaging element and method are disclosed, wherein dimensional changes after thermal processing for about 5 seconds at a temperature of about 125.degree. C., do not exceed .+-.0.03%. The imaging element features an amine-generating and an amine-responsive composition. The method features preheating the element prior to exposure to dimensionally stabilize it.Type: GrantFiled: October 31, 1980Date of Patent: December 29, 1981Assignee: Eastman Kodak CompanyInventors: Raymond F. Limoges, Anthony A. Scribani, Robert J. Wilson
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Patent number: 4307174Abstract: Disclosed herein are heat-activatable adhesive compositions containing a water-dispersible polyester which comprisesA. an acid component comprising:(1) from about 8 to about 16 mole percent of units derived from at least one dicarboxylic acid having an ionic iminosulfonyl moiety containing a monovalent cation as an imino nitrogen substituent;(2) from about 40 to about 70 mole percent of units derived from at least one dicarboxylic acid selected from the group consisting of aliphatic dicarboxylic acids having the formula HOOC--(CH.sub.2).sub.Type: GrantFiled: January 29, 1981Date of Patent: December 22, 1981Assignee: Eastman Kodak CompanyInventors: John M. Noonan, Robert C. McConkey
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Patent number: 4304851Abstract: Light-sensitive photographic films are produced by coating polyester films with aqueous dispersions of polyesters or copolyesters containing free-functional acid groups. Corona discharge treatment of the polyester or copolyester layers is disclosed for direct adhesion to photographic emulsions or indirect adhesion via a polymeric sub and/or gelatin sub.Type: GrantFiled: October 1, 1980Date of Patent: December 8, 1981Assignee: Bexford LimitedInventors: Patrick T. McGrail, David R. Mann
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Patent number: 4301239Abstract: Dimensionally stable energy-treated polyester film is coated with an opaque antistatic backing layer of carbon-filled polyacrylate containing an aziridine cross-linking agent.Type: GrantFiled: December 5, 1979Date of Patent: November 17, 1981Assignee: E. I. Du Pont de Nemours and CompanyInventor: Conrad E. Miller
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Patent number: 4298682Abstract: Two-sheet diffusion transfer assemblages, photographic elements and dye image-receiving elements are described wherein an overcoat layer is present on the photographic element or the dye image-receiving element superposed thereon. The overcoat layer comprises either silica or an ionic polyester in a hydrophilic colloid which prevents spontaneous delamination during the lamination period, yet permits satisfactory peel-apart afterwards.Type: GrantFiled: August 1, 1980Date of Patent: November 3, 1981Assignee: Eastman Kodak CompanyInventor: John F. Bishop
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Patent number: 4296195Abstract: Two-sheet diffusion transfer assemblages and photographic elements are described which contain a primer layer located between a polymeric acid layer and a timing layer. The primer layer prevents unwanted transfer of portions of the emulsion layer to the receiver when the receiver and photographic element are peeled apart. The primer layer comprises:(a) a mixture of gelatin and cellulose nitrate, or(b) a mixture of an acrylic acid copolymer and a particular acrylic acid terpolymer, or(c) an acrylic acid copolymer as described herein.Type: GrantFiled: August 1, 1980Date of Patent: October 20, 1981Assignee: Eastman Kodak CompanyInventors: John F. Bishop, Wayne A. Bowman
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Patent number: 4293625Abstract: Photolithographic receptor sheet comprising a support having an anchor layer thereon comprising rutile crystalline titanium dioxide having an oxide surface treatment of at least about 10 percent by weight, the major proportion of which is the oxide of silica, and a layer of hydrophilic colloidal silica overlying said anchor layer.Type: GrantFiled: October 15, 1980Date of Patent: October 6, 1981Assignee: Minnesota Mining and Manufacturing CompanyInventor: Joseph F. Myers
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Patent number: 4293642Abstract: Adhesion of a hydrophilic photographic emulsion to a hydrophobic polyester substrate is achieved by providing the substrate with a surface layer containing free carboxy groups and incorporating in the emulsion a cross-linking agent which can cross-link the emulsion and the carboxy containing surface layer. Carbodiimides are a class of cross-linking agents having this capability.Type: GrantFiled: May 13, 1980Date of Patent: October 6, 1981Assignee: GAF CorporationInventors: Elton L. Beavan, E. Bradley Moynahan
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Patent number: 4287298Abstract: Film base material is provided which comprises a film of biaxially oriented synthetic linear polyester of highly hydrophobic character having superimposed thereon adherent to said film a subbing layer obtained from an aqueous latex of a copolymer which has been prepared by copolymerizing vinylidene chloride, an alkyl acrylate or methacrylate and optionally a copolymerizable acid and/or at least one allyl, methallyl or vinyl monomer which contains either an active halogen group or an active methylene group in the presence of a mixture of (a) an anionic surfactant which is either an alkyl aryl polyether sulphate, sulphonate or phosphate and (b) a nonionic surfactant which is an alkyl aryl polyalkylene oxide adduct containing at least some units derived from propylene oxide.The subbing layer improves the adhesion between the film support and the photographic emulsion layers and prevents the separation or frilling of the layers when the final photographic film is processed.Type: GrantFiled: February 6, 1980Date of Patent: September 1, 1981Assignee: Ciba-Geigy AGInventor: Geoffrey M. Dodwell
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Patent number: 4271263Abstract: Acutance agents for use in thermally developable photosensitive compositions are disclosed. These novel compositions absorb scattered light and are rendered colorless at the development temperature of the photothermographic composition.Type: GrantFiled: May 15, 1980Date of Patent: June 2, 1981Assignee: Minnesota Mining and Manufacturing CompanyInventor: Edward J. Goettert
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Patent number: 4267267Abstract: A thermally developable light-sensitive element comprising a support having in one or more layers thereon at least (a0) an organic silver salt, (b) light-sensitive silver halide grains and (c) a reducing agent, wherein the average grain size of the light-sensitive silver halide grains is not less than about 0.05 .mu. and the support is gas permeable and, in addition, carries thereon a subbing layer composed of at least one copolymer selected from the group consisting of a vinyl chloride type copolymer in which vinyl chloride is present in the copolymer in an amount of about 50 molar % or higher and a vinylidene chloride type copolymer in which vinylidine chloride is present in the copolymer in an amount of about 50 molar % or higher. The thermally-developable light-sensitive element of the invention is highly sensitive and in addition, has a good storage stability retaining on storage the properties possessed by the "fresh" photosensitive element even under high humidity and/or high temperature conditions.Type: GrantFiled: October 2, 1979Date of Patent: May 12, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Shinpei Ikenoue, Takao Masuda
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Patent number: 4266017Abstract: 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 perType: GrantFiled: September 4, 1979Date of Patent: May 5, 1981Assignee: Eastman Kodak CompanyInventors: Thomas W. Martin, M. Akram Sandhu
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Patent number: 4265946Abstract: A process for forming a subbing layer in photographic sensitive materials which comprises applying an aqueous dispersion of a copolymer consisting of at least one diolefin monomer and one or more vinyl monomers to a plastic film base in which the gel fraction of the copolymer in said aqueous dispersion is about 80% by weight or less.Type: GrantFiled: November 13, 1979Date of Patent: May 5, 1981Assignees: Fuji Photo Film Co., Ltd., Nippon Zeon Co., Ltd.Inventors: Masao Yabe, Sumitaka Tatsuta, Takeji Ochiai, Tamotsu Suzuki, Masayoshi Sekiya
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Patent number: 4255515Abstract: A photographic film which comprises (A) a support, having two sides, (B) at least one light-sensitive emulsion layer on one side of said support (A), and, (C) at least one layer containing a compound represented by formula [I]and a hydrophobic polymer (first layer) and at least one layer containing an antistatic agent (second layer), said first and second layers being placed on the other side of said support (A) and said first layer being placed closer to said support (A) than said second layer: ##STR1## wherein, R.sub.1 represents a carboxylic acid residue having from 12 to 24 carbon atoms and R.sub.2, R.sub.3 and R.sub.4 represent independently hydrogen atoms or organic acid residues having from 1 to 24 carbon atoms.Type: GrantFiled: November 13, 1978Date of Patent: March 10, 1981Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Toshiaki Shibue, Koichi Nagayasu, Masayoshi Mayama, Masao Ishihara, Naoto Abe
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Patent number: 4255516Abstract: A photographic support of a composite polyester film in which additives and oligomers can be incorporated in the support without exerting any undesirable effects upon photographic characteristics, which film is constructed by an inner layer of polyester containing volatile diffusible substances or exudative substances, and a covering layer of another sort of polyester, with which both sides of the inner layer are covered, not containing the above-described substances judging from practical viewpoint and that, having a glass transition point equal to or higher than that of the inner layer, and which film is orientated along at least one prescribed axis.Type: GrantFiled: April 18, 1980Date of Patent: March 10, 1981Assignees: Fuji Photo Film Co., Ltd., Toray Industries, Inc.Inventors: Kazunobu Katoh, Saburo Fujita, Toshihiro Otaki, Shozi Nakashima
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Patent number: 4254208Abstract: A process for producing a photographic material, which comprises dispersing, in a solution of an organic resin, a material which is incompatible with the organic resin to form a dispersion, coating the resulting dispersion on at least one side of a support to form a coated layer, and then drying the coated layer, the material dispersed being a solid at ordinary temperature and in a liquid phase during the dispersing, whereby the coated layer when dried contains solid particles dispersed therein due to solidification of the dispersed material.The present invention also provides a photographic material obtained by the above process.Type: GrantFiled: February 14, 1977Date of Patent: March 3, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Sumitaka Tatsuta, Masuhiko Hirose, Hiroshi Amari
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Patent number: 4252885Abstract: Light-sensitive photographic films are produced by coating polyester films with aqueous dispersions of polyesters or copolyesters containing free-functional acid groups. Corona discharge treatment of the polyester or copolyester layers is disclosed for direct adhesion to photographic emulsions or indirect adhesion via a polymeric sub and/or gelatin sub.Type: GrantFiled: March 22, 1978Date of Patent: February 24, 1981Assignee: Bexford LimitedInventors: Patrick T. McGrail, David R. Mann
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Patent number: 4241169Abstract: To improve adhesion of a hydrophilic photographic emulsion to a hydrophobic polyester film base the latter is pretreated by electrical discharge, flame or chemical treatment, and then given a sub-coating composed of an aqueous dispersion of gelatin, a water-soluble polyester, and a polyfunctional aziridine crosslinking agent, and this coating is then thermally cured.Type: GrantFiled: May 21, 1979Date of Patent: December 23, 1980Assignee: E. I. Du Pont de Nemours & CompanyInventors: Ray A. Work, III, Richard P. Pankratz
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Patent number: 4241170Abstract: Polyester films are modified by the addition of a high molecular weight polyethylene glycol and an alkali metal salt of a sulfonic acid-substituted dicarboxylic acid ester to the reaction medium during the polymerization process. Films prepared for example, from diesters of terephthalic acid in the presence of the modifiers of this invention produce films which exhibit good permeability to water vapor.Type: GrantFiled: August 14, 1979Date of Patent: December 23, 1980Assignee: E. I. Du Pont de Nemours and CompanyInventor: John H. Bayless
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Patent number: 4238560Abstract: A photosensitive printing plate forming material having on its surface a matting layer composed of a resin and a fine particulate material dispersed therein, said resin being at least one member selected from rosin and rosin esters.Type: GrantFiled: August 30, 1979Date of Patent: December 9, 1980Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuo Nakamura, Yoshio Okishi
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Patent number: 4229524Abstract: A photographic light sensitive material which contains, in at least one layer, a copolymer having a repeating unit represented by the following general formula (I): ##STR1## wherein R.sub.f represents a perfluoroalkyl group having 2 to 12 carbon atoms which may contain one hydrogen atom at the .omega.-position or a perfluoroalkenyl group; R represents a hydrogen atom or a methyl group; p represents an integer of 1 to 5; m represents an integer of 5 to 50; n represents zero or an integer of 1 to 20; and Y represents a hydrogen atom, an alkyl group having 1 to 24 carbon atoms, an alkenyl group, a phenyl group, an alkylphenyl group or one of the groups represented by R.sub.f ; whereby antistatic property (even under low humidity) and adhesion resisting property are improved without adversely affecting photographic characteristics.Type: GrantFiled: June 4, 1979Date of Patent: October 21, 1980Assignee: Fuji Photo Film Co., Ltd.Inventors: Masakazu Yoneyama, Shinzo Kishimoto
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Patent number: 4229523Abstract: A method of undercoating a polyester film of a light sensitive photographic material is disclosed in which one side of the film is pretreated such that the contact angle with water is below 58.degree.. Additionally, a layer of an aqueous dispersion containing no organic solvent is applied to said side of said film, said dispersion containing a copolymer containing up to 60% by weight of glycidyl methacrylate and 25-60% by weight of ethyl acrylate.Type: GrantFiled: March 30, 1979Date of Patent: October 21, 1980Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Hideyasu Ohta, Jun Shirasaki, Masaru Kanbe, Naoto Abe, Takahiro Uozumi, Masayoshi Mayama
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Patent number: 4213783Abstract: Subbing layers in photographic films especially for polyester such as polyethylene terephthalate film supports comprise copolymers of 75 to 90 mole % of vinylidene chloride, 2 to 16 mole % of acrylonitrile or methacrylonitrile or a copolymerizable ester, e.g. methyl acrylate or vinyl acetate, 0.5 to 5 mole % of itaconic acid or a monoalkyl ester of itaconic acid wherein the alkyl group contains 1 to 4 carbon atoms and 3 to 8 mole % of acrylamide, methacrylamide or N-methylolacrylamide.Type: GrantFiled: October 4, 1976Date of Patent: July 22, 1980Assignee: Bexford LimitedInventor: Alan H. Cook
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Patent number: 4211808Abstract: A backing sheet or mat for use in the exposure of photosensitive materials under vacuum conditions, includes a sheet of porous, woven fabric having a nonreflective surface, a sheet of flexible, but substantially rigid, polymeric material beneath the fabric sheet, and a sheet of flexible rubber material beneath the polymeric sheet. Each of the sheets is attached together to form the backing sheet and a plurality of apertures extend through the thickness of the sheets of polymeric and rubber material and are arranged over substantially the entire area of the latter sheets.Type: GrantFiled: November 10, 1977Date of Patent: July 8, 1980Assignee: Roberts & Porter, Inc.Inventor: Richard A. Trankle
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Patent number: 4210449Abstract: Copolymers of glycidyl methacrylate and allyl glycidyl ether having pendant epoxy groups, having an inherent viscosity of at least about 0.25, preferably within the range of about 0.25 to about 0.38, and an epoxy equivalent of at least about 0.65 epoxide equivalent per 100 g. of polymer are provided which upon admixture with a radiation-sensitive aryldiazonium salt provide compositions which exhibit improved sensitivity, curing rates and other properties. Articles for recording and storing information from a laser source and other articles such as microfilm are derived from such compositions by subjecting a coated substrate to an energy source of sufficient intensity to decompose the radiation-sensitive catalyst and thus effect polymerization via the epoxy groups of the copolymer.Type: GrantFiled: February 4, 1975Date of Patent: July 1, 1980Assignee: American Can CompanyInventors: Sheldon I. Schlesinger, Veronica Cochran
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Patent number: 4207106Abstract: A light-sensitive copying material comprising at least two organic coating layers on a support, at least one of the coating layers being a light-sensitive layer which comprises an O-quinone diazide compound whose alkali solubility is increased by irradiation with active rays.Type: GrantFiled: May 10, 1978Date of Patent: June 10, 1980Assignee: Fuji Photo Film Co., Ltd.Inventors: Masaru Odawara, Tadao Yoyama, Azusa Ohashi
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Patent number: 4203764Abstract: An image holding member for holding electrostatic latent images and/or toner images is characterized in that the surface of the image holding member has a surface layer formed by a coating, said surface layer essentially consisting of at least one of substances A and B wherein the substance A is a linear polyester resin soluble in organic solvents and the substance B is a copolymerization product of a linear isocyanate of the formula: ##STR1## and a polyol of the formula: HO--(CH.sub.2).sub.n --OH wherein n is a positive integer.Type: GrantFiled: December 15, 1978Date of Patent: May 20, 1980Assignee: Canon Kabushiki KaishaInventors: Umi Tosaka, Hideyo Kondo, Keiichi Murai, Hitoshi Toma
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Patent number: 4193803Abstract: Disclosed herein are heat-activatable adhesive compositions comprising an amorphous condensation polymer which is characterized by having an acid component comprising a phthalic acid derivative and a glycol component comprising from about 15 to about 85 mole percent of (1) a linear aliphatic glycol having the structure HO--R--H wherein R is either: ##STR1## or --CH.sub.2 CH.sub.2 O--.sub.n wherein n is an integer from 2 to 4; and from about 85 to about 15 mole percent of (2) a branched aliphatic glycol having the structure: ##STR2## wherein R.sup.1 and R.sup.2 are alkyl. These polyester adhesives are further characterized as being soluble in halogenated solvents, having glass transition temperatures within the range of about -30.degree. C. to about 50.degree. C., and having high bonding strengths at elevated temperatures. They have been found useful in a variety of photographic materials, and particularly in photographic film units.Type: GrantFiled: June 12, 1978Date of Patent: March 18, 1980Assignee: Eastman Kodak CompanyInventors: Mohammad A. Sandhu, Kenneth L. Tingler
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Patent number: 4187113Abstract: Opaque voided films having a total luminous transmission not exceeding 25% are made from blends of a polyester preferably polyethylene terephthalate, with 3 to 27% of an ethylene or propylene polymer, prepared by dry blending. One end use of the film, as a base for photographic prints is also described.Type: GrantFiled: November 3, 1977Date of Patent: February 5, 1980Assignee: Imperial Chemical Industries LimitedInventors: Carl F. Mathews, Christopher Deverell, Gordon E. A. Pears, Peter G. Knowles
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Patent number: 4187105Abstract: A non-silver photosensitive image forming composition containing at least one substituted bis-diaryl vinylidene compound and/or at least one substituted bis-diaryl imine compound and tetraiodoethylene in a dried photosensitive layer thickness not exceeding 3 microns in layer thickness, the nature of the substitution being such that substantially any high extinction absorption peak or combination of high extinction absorption peaks is available from a family of compositions covering the range of 350 to 900 nm in wavelength, said composition being placed on a transparent or reflective substrate fitted with a compatible adhesive for the photosensitive layer not more than 0.Type: GrantFiled: May 23, 1978Date of Patent: February 5, 1980Assignee: Horizons Research IncorporatedInventors: Eugene Wainer, James M. Lewis
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Patent number: 4183749Abstract: A diffusion transfer photographic film, in which a film of a polyethylene terephthalate copolymer is a part of the constituents thereof, the polyethylene terephthalate containing about 3 to about 20% by weight of a polyalkylene glycol, as a glycol component comonomer, based on the weight of the polyethylene terephthalate copolymer.Type: GrantFiled: February 10, 1978Date of Patent: January 15, 1980Assignees: Fuji Photo Film Co., Ltd., Toray Industries Inc.Inventors: Kenji Yabe, Atsuhiko Soda, Satoyuki Minami, Osamu Iida
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Patent number: 4181528Abstract: To improve adhesion of a hydrophilic photographic emulsion to a hydrophobic polyester film base the latter is pretreated by electrical discharge, flame or chemical treatment, and then given a sub-coating composed of an aqueous dispersion of gelatin, a water-soluble polyester, and a polyfunctional aziridine crosslinking agent, and this coating is then thermally cured.Type: GrantFiled: March 20, 1978Date of Patent: January 1, 1980Assignee: E. I. Du Pont de Nemours and CompanyInventors: Ray A. Work, III, Richard P. Pankratz
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Patent number: T990004Abstract: 5,6,7,8 Tetrafluoro 1-hydroxy-2-naphthamide couplers which are N-substituted with a lower alkylphenoxybutyl ballasting group are disclosed as well as compositions and photographic elements containing these couplers in coupler solvent particles. The coupler solvent particles are comprised of a combination of a coupler solvent and the coupler capable of permitting the formation of a microcrystalline dye. Surprisingly these microcrystalline dyes exhibit a broadened absorption characteristic in the 750 to 850 nm region of the spectrum. Dye images having such absorption characteristics are particularly suited to forming integral infrared absorbing sound tracks in photographic elements, such as motion picture projection films.Type: GrantFiled: May 4, 1979Date of Patent: January 1, 1980Inventors: Jose M. Fernandez, Robert G. Cameron, Edward J. Walsh