Higher Fatty Acid Or Derivative Patents (Class 430/633)
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Patent number: 7462445Abstract: A method of processing a photothermographic material by a thermal processor is disclosed, wherein the photothermographic material comprises on one side of a support a light-sensitive layer containing an organic silver salt, silver halide grains, a binder and a reducing agent and a light-insensitive layer and on the other side of the support a back coating layer; the thermal processor uses a transport system in which a feed roller is disposed with being in contact with a bundle of plural stacked film sheets of the photothermographic material so as to feed the uppermost film sheet of the bundle of film sheets through rotation of the feed roller to expose and develop the fed film sheet; the light-insensitive layer or the back coating layer contains a lubricant having a mass average molecular weight of 550 or more.Type: GrantFiled: August 27, 2007Date of Patent: December 9, 2008Assignee: Konica Minolta Medical & Graphic, Inc.Inventor: Narito Goto
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Patent number: 7422835Abstract: The invention provides an imaging element comprising a support having thereon, in order, at least one imaging layer, at least one interlayer containing a lubricant which provides scratch-resistance and at least one outermost layer containing a different lubricant which provides abrasion-resistance and a method of processing the element. The element has increased durability, especially with regard to scratch- and abrasion- (especially photoabrasion-) resistance, whilst retaining performance and ease of manufacture. Preferably the element is for use in the manufacture of printed circuit boards or the production of printing plates, wherein abrasion and scratches are particularly acute.Type: GrantFiled: November 25, 2004Date of Patent: September 9, 2008Assignee: Eastman Kodak CompanyInventor: Sean D. Slater
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Patent number: 7132226Abstract: A photothermographic material comprising a support, and an image-forming layer and a non-image-forming layer provided on the support, wherein the image-forming layer comprises a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder; the non-image-forming layer includes a slipping agent having a melting point of 80° C. to 120° C.; the coefficient (K1) of dynamic friction measured at a velocity of 0.1 cm/sec and the coefficient (K2) of dynamic friction measured at a velocity of 10 cm/sec have a relation represented by formula (1): Formula (1) 1.20>K1/K2>0.90. Also provided is an image-forming method using the photothermographic material.Type: GrantFiled: September 22, 2005Date of Patent: November 7, 2006Assignee: Fuji Photo Film Co., Ltd.Inventor: Katsutoshi Yamane
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Patent number: 6911302Abstract: A coating composition for use in a photographic element, the composition comprising an aqueous solution of: two or more surfactants; a hydrophilic binder; and optional matte particles; wherein one of the surfactants is represented by the following Formula (I): Rf—CH2CH2—(B)y-A??(I) where Rf is F(CF2CF2)n— and n is 3 and 4 or 3, 4, and 5, and the fraction of all Rf with n=3 is at least 40%; B is a divalent linking group; y is 0 or 1; and A is an anionic group with a counterion or an amphoteric group. A photographic element containing the coating composition is also disclosed.Type: GrantFiled: November 7, 2003Date of Patent: June 28, 2005Assignee: Eastman Kodak CompanyInventors: Alice G. Moon, Mark P. Pavlik, Michael W. Orem
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Patent number: 6613503Abstract: The invention relates to a photographic element comprising a reflection support and an overcoat layer wherein said overcoat layer comprises hydrophilic binder and lubricant, said lubricant has a particle mean diameter of greater than 1 &mgr;m and the volume of particles of lubricant below 1 &mgr;m is less than 5% of said total volume of lubricant.Type: GrantFiled: June 26, 1996Date of Patent: September 2, 2003Assignee: Eastman Kodak CompanyInventors: Walter Harold Isaac, James Stephen Honan, Edgar Erick Riecke
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Patent number: 6200720Abstract: A graft resin having a structure of the formula (1) and having a number average molecular weight of 2,000 to 50,000, has excellent low-temperature moldability and exhibits an excellent shelf life against softening when stored at high temperatures, and an electrostatic charge developing toner containing the above graft resin as a binder exhibits excellent low-temperature fixing properties, developability and transferability without impairing the shelf life.Type: GrantFiled: June 8, 1999Date of Patent: March 13, 2001Assignee: Tomoegawa Paper Co., Ltd.Inventor: Toshio Tagami
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Patent number: 5928850Abstract: A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a dispersion material which is obtained by emulsifying a mixture of a yellow coupler represented by the formula and a polymer compound that is insoluble in water and soluble in an organic solvent.Type: GrantFiled: February 18, 1997Date of Patent: July 27, 1999Assignee: Konica CorporationInventors: Kazuhiro Murai, Shigeo Tanaka, Kunimasa Hiyama
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Patent number: 5773204Abstract: The invention concerns a process for coating a photographic support.The process consists of depositing on a support a succession of at least two layers, at least one of which consists of a photosensitive composition, the top layer, situated at the opposite side to the support, containing a given concentration of at least one surfactant, the process being characterized in that a surfactant present in the top layer is introduced into the layer adjacent to the top layer at a concentration equal to at least 25% of the concentration of the same surfactant in the said top layer.Type: GrantFiled: March 17, 1997Date of Patent: June 30, 1998Assignee: Eastman Kodak CompanyInventor: Jean Marie Baumlin
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Patent number: 5679505Abstract: A photographic film that is especially useful as a motion picture print film is comprised of a support having, in order, on one side thereof an antihalation undercoat and at least one silver halide emulsion layer and having, in order, on the opposite side thereof an antistatic layer and a protective topcoat; wherein the protective topcoat is comprised of a polyurethane binder and a lubricant and the polyurethane binder has a tensile elongation to break of at least 50% and a Young's modulus measured at 2% elongation of at least 50000 lb/in.sup.2. The polyurethane binder provides a tough but flexible protective topcoat that is capable of resisting abrasion and scratching when the film is conveyed through a projector and capable of standing up to the repeated use to which motion picture print films are typically subjected.Type: GrantFiled: December 21, 1995Date of Patent: October 21, 1997Assignee: Eastman Kodak CompanyInventors: Kenneth Lloyd Tingler, Charles Chester Anderson, Lori Jeanne Shaw-Klein
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Patent number: 5508147Abstract: Yellowing of a processed photographic element is inhibited by incorporating a scavenger comound capable of reacting with magenta coupler, e.g. an epoxy compound, in a layer adjacent a layer containing the magenta coupler. In a preferred embodiment, the magenta coupler containing layer is sandwiched between layers containing the scavenger compound. Prior to processing at least one of these layers contains a solubilizing agent for the scavenger compound. In preferred embodiments, the processing solution used to process the photographic element containing an external solubilizing agent for the scavenger compound, preferably benzyl alcohol.Type: GrantFiled: January 4, 1993Date of Patent: April 16, 1996Assignee: Eastman Kodak CompanyInventors: Krishnan Chari, Wendell F. Smith, Sundaram Krishnamurthy
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Patent number: 5451497Abstract: The tendency of a photographically useful compound (PUC) to crystallize when dispersed in an aqueous medium is inhibited by codispersing with the PUC a non-color forming, oil-soluble, monomeric or oligomeric organic compound having a glass transition temperature between 0.degree. and 150.degree. C. Preferred organic compounds are oil-soluble sucrose esters, such as sucrose octaacetate, and rosin and derivatives thereof.Type: GrantFiled: December 30, 1993Date of Patent: September 19, 1995Assignee: Eastman Kodak CompanyInventors: David D. Miller, Krishnan Chari
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Patent number: 5426019Abstract: Yellowing, dye fade and thermal pinking of a processed color photographic element is improved by incorporating into the photographic element a non-color forming, oil-soluble, monomeric or oligomeric organic compound having a glass transition temperature between 0.degree. and 150.degree. C. Preferred organic compounds include rosin derivatives, natural resins and oil-soluble sucrose esters, etc. In a particularly preferred embodiment, the above-noted properties are improved by incorporating into the photographic element an oil-soluble rosin derivative, such as abietic acid.Type: GrantFiled: December 30, 1993Date of Patent: June 20, 1995Assignee: Eastman Kodak CompanyInventor: Krishnan Chari
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Patent number: 5089379Abstract: An image forming method for a light-sensitive silver halide photographic material that provides a superior silver image in a short time is disclosed. The image forming method comprises the steps of subjecting to imagewise exposure of said light-sensitive silver halide photographic material which comprises a support and a silver halide emulsion layer provided on said support, wherein said silver halide emulsion layer contains a silver halide grain having a crystal surface with an area ratio of (100) face to (111) face of not less than 5 and being spectrally sensitized in the wavelength range of 600 nm or more with a specific sensitizing dye; and at least one layer included in said light-sensitive silver halide photographic material contains a fluorine-containing surface active agents; and processing said exposed light-sensitive silver halide photographic material for a period of time of from 20 seconds to 60 seconds in total.Type: GrantFiled: April 16, 1990Date of Patent: February 18, 1992Assignee: Konica CorporationInventor: Naoko Yatsuyanagi
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Patent number: 5075209Abstract: A silver halide photographic light-sensitive material is disclosed, which has high sensitivity, high contrast and improved standing stability in the manufacturing process. The light-sensitive material has a silver halide emulsion layer and silver halide grains contained in the emulsion layer are spectrally sensitized by a specific sensitizing dye dissolved in a chain hydrocarbon compound having two or more more hydroxy groups or a mixture of the hydrocarbon compound and a water-miscible solvent.Type: GrantFiled: August 15, 1990Date of Patent: December 24, 1991Assignee: Konica CorporationInventor: Takayuki Sasaki
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Patent number: 5063147Abstract: Disclosed is a silver halide photographic light-sensitive material comprising a support and a light-sensitive silver halide emulsion layer provided on the support, wherein a surface layer provided on the photographic light-sensitive material contains an aliphatic carboxylic ester having the formula (I) or the formula (II):R.sup.11 COOR.sup.12 (I)in which each of R.sup.11 and R.sup.12 independently is an aliphatic hydrocarbon group having 12-70 carbon atoms; at least one of R.sup.11 and R.sup.12 is branched; and the number of the total carbon atoms contained in R.sup.11 and R.sup.12 is in the range of 32 to 140,R.sup.21 OOCXCOOR.sup.22 (II)in which each of R.sup.21 and R.sup.22 independently is an aliphatic hydrocarbon group having 12-70 carbon atoms; X is a divalent linking group; at least one of R.sup.21, R.sup.22 and X is a branched aliphatic hydrocarbon group having 12 or more carbon atoms; and the number of the total carbon atoms contained in R.sup.21 and R.sup.22 is in the range of 32 to 140.Type: GrantFiled: April 27, 1990Date of Patent: November 5, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Masakazu Yoneyama, Ryosuke Yamada, Yosuke Nishiura, Yukio Maekawa, Yuzo Higaki, Yoshiaki Iwamoto
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Direct positive silver halide photographic light-sensitive material and a processing method therefor
Patent number: 5049483Abstract: There is disclosed a direct positive silver halide light-sensitive material which can be processed in ultra-rapid processing and have a higher sensitivity, a lower Dmin, an excellent antistatic property and less flactuation of the properties in storing. The light-sensitive material contains an electron-accepting compound in a silver halide emulsion layer, and a fluorinated surfactant and/or at least one of the compounds represented by Formulas I-a to II-b in a photographic component layer: ##STR1## wherein R.sub.1 to R.sub.4 represent independently a hydrogen atom, a lower alkyl group, an alkoxy group, a carboxy group, an alkoxycarbonyl group, a sulfo group, a halogen atom, and a nitro group, provided that at least one of R.sub.1 and R.sub.2 is a carboxy group, an alkoxycarbonyl group or a sulfo group.Type: GrantFiled: June 4, 1990Date of Patent: September 17, 1991Assignee: Konica CorporationInventors: Naoko Yatsuyanagi, Tsuyoshi Mitsuhashi -
Patent number: 4543312Abstract: A magnetic toner comprises magnetic powders having a particle distribution that the particle size of 50% accumulated volume, the particle size of 25% accumulated volume and the particle size of 75% accumulated volume of the magnetic powders are 1.5-4.5.mu., 1.0-4.0.mu. and 2.5-6.0.mu., respectively. This magnetic toner can produce high density and clear images and further, can produce colorful images.Type: GrantFiled: April 26, 1983Date of Patent: September 24, 1985Assignee: Canon Kabushiki KaishaInventors: Kazunori Murakawa, Yasuo Mitsuhashi, Hitoshi Uchide, Seiichi Takagi, Masaki Uchiyama, Hisayuki Ochi, Motoo Urawa, Eiichi Imai
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Patent number: 4302505Abstract: A polyester film coated with an antistatic coating is provided. The film includes a polyester film support coated on at least one side with a latex coating. The coating includes stearamidopropyldimethyl-.beta.-hydroxy-ethylammonium nitrate present in a concentration in the range of between about 2.75 percent and 3.25 percent by weight, based on the total weight of the latex coating. The coating further includes a cross-linkable methylmethacrylate-ethylacrylate-methacrylamide terpolymer having a glass transition temperature in the range of between about 40.degree. C. and 50.degree. C. The terpolymer is present in a concentration in the range of between about 0.75 percent and 1.25 percent by weight, based on the total weight of the latex coating. The weight ratio of the nitrate to the terpolymer ranges between about 2.75:1 to below 3:1.A process for forming the above film is also disclosed.Type: GrantFiled: April 25, 1980Date of Patent: November 24, 1981Assignee: American Hoechst Corp.Inventor: John M. Heberger
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Patent number: 4302506Abstract: A polyester film coated with a slip composition is provided. The film includes a polyester film support coated on at least one side with a latex coating. The coating includes stearamidopropyldimethyl-.beta.-hydroxy-ethylammonium nitrate present in a coating weight in the range of up to 0.003 pounds per thousand square feet of biaxially oriented polyester film. The coating further includes a cross-linkable methylmethacrylate-ethylacrylate-methacrylamide terpolymer having a glass transition temperature in the range of between about 40.degree. C. and 50.degree. C. The terpolymer is present in a concentration in the range of between about 0.75 percent and 1.25 percent by weight, based on the total weight of the latex coating. The weight ratio of the nitrate to the terpolymer ranges between about 2.75:1 to below 3:1.A process for forming the above film is also disclosed. In this process a latex coating of the composition described above is coated onto a uniaxially drawn polyester film support.Type: GrantFiled: June 12, 1980Date of Patent: November 24, 1981Assignee: American Hoechst CorporationInventor: John M. Heberger
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Patent number: 4267265Abstract: A silver halide photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and a surface layer thereof containing an organic fluoro-compound and a carboxy group-containing compound, resulting in an improvement in the physical characteristics of the surface.Type: GrantFiled: December 29, 1978Date of Patent: May 12, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Naohiko Sugimoto, Ikutaro Horie, Kameji Nagao, Masakazu Yoneyama, Yasuhiro Nakayama, Nobuo Yamamoto
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Patent number: 4214035Abstract: A polyester film coated with an antistatic coating is provided. The film includes a polyester film support coated on one side with a latex coating. The coating includes stearamidopropyldimethyl-.beta.-hydroxy-ethylammonium nitrate present in a concentration in the range of between about 2.75 percent and 3.25 percent by weight, based on the total weight of the latex coating. The coating further includes a crosslinkable methylmethacrylate-ethylacrylate-methacrylamide terpolymer having a glass transition temperature in the range of between about 40.degree. C. and 50.degree. C. The terpolymer is present in a concentration in the range of between about 0.75 percent and 1.25 percent by weight, based on the total weight of the latex coating. The weight ratio of the nitrate to the terpolymer ranges between about 2.75:1 to below 3:1.A process for forming the above film is also disclosed. In this process a latex coating of the composition described above is coated onto a uniaxially drawn polyester film support.Type: GrantFiled: January 31, 1979Date of Patent: July 22, 1980Assignee: American Hoechst CorporationInventor: John M. Heberger
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Patent number: T996002Abstract: Vesicular recording materials are described which include a sensitized layer comprising a polyeric vehicle for the sensitizing agent which is an acrylonitrile/substituted or unsubstituted styrene copolymer with at least 55 mole % of acrylonitrile and preferably less than 85 mole %. The copolymer is usually homogeneous and preferably derived from acrylonitrile and the styrene comonomer along and most preferably contains from 65 to 82 mole % of acrylonitrile. The copolymer is softenable on heating to permit the gas released by the sensitizing agent in the light struck areas to form light-scattering or reflecting vesicles therein.A surfactant in an amount of at least 1% by weight, based on the weight of the copolymer, is essential to vesiculation and anionic surfactants are especially effective in providing a wide tonal range and good speed rating, amounts up to 20% by weight being preferred.Type: GrantFiled: October 23, 1979Date of Patent: July 1, 1980Assignee: Bexford LimitedInventor: John C. Kwok