And Mordant Patents (Class 430/518)
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Patent number: 10265275Abstract: A method of making a facile, surface-independent, polyphenol coating is disclosed. In general, the method includes contacting at least a portion of the substrate to be coated with an aqueous solution containing one or more salts and one or more nitrogen-free phenolic compounds. Substrates of all kinds may be used, and compounds used to make the coating may include epigallocatechin-3-gallate (EGCG), epigallocatechin (EGC) and epicatechin-3-gallate (ECG), tannic acid, gallic acid, pyrogallol, and/or other nitrogen-free phenolic compounds. The coating made using the method, methods of using the coating, and kits comprising the coating precursors are also disclosed.Type: GrantFiled: February 24, 2014Date of Patent: April 23, 2019Assignee: Northwestern UniversityInventors: Phillip B. Messersmith, Tadas S. Sileika, Ran Zhang, Devin G. Barrett
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Patent number: 9199504Abstract: The present invention discloses a method of making core-shell polymer particles, comprising forming a linking-group-containing polymer by derivatizing a hydroxy-group-containing polymer, comprising hydroxy groups on adjacent carbon atoms with a linking agent, that is a compound comprising both an aldehyde moiety and an amine moiety, wherein one or more acetal moieties are formed in the linking-group-containing polymer, each acetal formed by the reaction of the aldehyde moiety in the linking agent with two hydroxy groups in the linking-group-containing polymer, wherein the amine moiety then becomes a linking group pendent from the linking-group-containing polymer, wherein the linking group is capable of reacting with a precursor group in the precursor polymer. Also disclosed are compositions comprising insoluble core-shell particles made by the method.Type: GrantFiled: September 15, 2010Date of Patent: December 1, 2015Assignee: EASTMAN KODAK COMPANYInventors: Peter J. Ghyzel, Joseph F. Bringley, David J. Giacherio, Lawrence P. DeMejo, Terry C. Schultz, Todd Emrick
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Patent number: 8772018Abstract: The invention relates generally to solid supports for chromatography. In specific embodiments the invention provides for solid supports suitable for affinity chromatography along with methods, systems and kits which use the same.Type: GrantFiled: July 7, 2008Date of Patent: July 8, 2014Assignee: EMD Millipore CorporationInventors: Nanying Bian, Senthil Ramaswamy, Neil Soice, Chen Wang, Yuan Wong
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Patent number: 7314706Abstract: A photothermographic material containing an image forming layer having at least a photosensitive silver halide, a non-photosensitive organic silver salt, and a reducing agent for the organic silver salt on one side of a support, and a first non-photosensitive layer containing a dye fixing agent for a water-soluble dye, a second non-photosensitive layer disposed between the support and the first non-photosensitive layer, and a third non-photosensitive layer forming an outermost layer on the other side of the support, wherein at least one layer among the first, second and third non-photosensitive layers contains the water-soluble dye. The invention provides a photothermographic material which exhibits high image quality and excellent image storability, and a manufacturing method thereof.Type: GrantFiled: December 2, 2005Date of Patent: January 1, 2008Assignee: FUJIFILM CorporationInventor: Seiichi Yamamoto
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Patent number: 6855292Abstract: An automated in situ heat induced antigen recovery and staining method and apparatus for treating a plurality of microscope slides. The process of heat induced antigen recovery and the process of staining the biological sample on the microscope slide are conducted in the same apparatus, wherein the microscope slides do not need to by physically removed from one apparatus to another. Each treatment step occurs within the same reaction compartment. The reaction conditions of each reaction compartment for treating a slide can preferably be controlled independently, including the individualized application of reagents to each slide and the individualized treatment of each slide. The reagents are preferably held in a reagent dispensing strip similar to a “blister pack”.Type: GrantFiled: March 14, 2003Date of Patent: February 15, 2005Inventor: Lee Angros
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Publication number: 20030031963Abstract: The invention provides an opaque reflective photographic material eg paper whose non image side is coated with a mordant in an amount to absorb during washing of the photographic material dyes that would contribute to staining of the final image.Type: ApplicationFiled: May 21, 2002Publication date: February 13, 2003Applicant: Eastman Kodak CompanyInventor: Henry H. Adam
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Patent number: 6159673Abstract: An oxonol compound is represented by the following formula (I): ##STR1## in which Z is an atomic group that forms a cyclic amide ring; each of W.sup.1 and W.sup.2 independently is an atomic group that forms an acidic nucleus ring; and M is a cation. Other oxonol compounds, a light-sensitive material containing an oxonol compound and a process for the synthesis of an oxonol compound are also disclosed.Type: GrantFiled: January 20, 1999Date of Patent: December 12, 2000Assignee: Fuji Photo Film Co., Ltd.Inventors: Junji Nishigaki, Yasuaki Deguchi
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Patent number: 5932402Abstract: A colour photographic recording material, comprising of a transparent film base, red-sensitive, green-sensitive and blue-sensitive silver halide emulsion layer units which are disposed thereon and which contain colour couplers, and optionally of further light-insensitive layers, wherein the green-sensitive silver halide emulsion layer unit comprises at least two green-sensitive partial layers, the partial layer of which which is furthest from the film base has the highest sensitivity and is situated further from the film base than is each partial layer of the red-sensitive silver halide emulsion layer unit, and wherein each partial layer of the blue-sensitive silver halide emulsion layer unit is situated further from the film base than is the highest-sensitivity partial layer of the green-sensitive silver halide emulsion layer unit, contains, in the highest-sensitivity partial layer of the green-sensitive silver halide emulsion layer unit, an organic yellow dye which can be decolorised during processing; theType: GrantFiled: December 16, 1997Date of Patent: August 3, 1999Assignee: Agfa-Gevaert AGInventors: Heinz Schutz, Rainer Scheerer, Klaus Sinzger
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Patent number: 5925506Abstract: A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a support having on one surface thereof photographic layers including a silver halide emulsion layer, at least one of the photographic layers contains a fluorescent whitening agent, and satisfies the following equation 1:(A/B)<0.03 Equation 1wherein A is an intensity of fluorescent light at the maximum fluorescent wavelength generated from the light-sensitive material before processing when the light-sensitive material is irradiated by exciting light of wavelength of 360 nm and B is an intensity of fluorescent light at the maximum fluorescent wavelength thereof generated from the area not exposed to light of the light-sensitive material after processing when the processed light-sensitive material is irradiated by exciting light of wavelength of 400 nm.Type: GrantFiled: October 31, 1997Date of Patent: July 20, 1999Assignee: Konica CorporationInventors: Hirokazu Sato, Shigeo Chino, Masahiro Shibuya
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Patent number: 5719015Abstract: A silver halide photographic material comprising a support having thereon at least one silver halide light-sensitive layer and at least one light-insensitive layer, wherein the support comprises a poly(alkylene aromatic dicarboxylate) having a glass transition temperature of from 50.degree. C. to 200.degree. C. and is heat-treated at a temperature of not lower than 40.degree. C., but lower than the glass transition temperature for 0.1 to 1500 hours after molding the polymer into the support and before the coating of the silver halide light-sensitive layer, and said at least one light-insensitive layer contains a dispersion of crystallites of at least one dye represented by general formula (I):D--(X).sub.y (I)wherein D represents a moiety having a chromophoric group; X represents a dissociable proton or a group having a dissociable proton which is bonded to D either directly or through a bivalent bonding group; and y represents an integer of 1 to 7.Type: GrantFiled: May 14, 1996Date of Patent: February 17, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiji Mihayashi, Kiyoshi Nakazyo
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Patent number: 5498505Abstract: A dye fixing element comprising a polymer mordant, said polymer mordant containing at least one monomeric unit including at least one group derived from the class of tertiary amines, thioethers, aromatic 5-membered heterocyclic rings, hydrazides, hydrazones and polyarylphenols, and at least one quaternary ammonium group.Type: GrantFiled: December 21, 1994Date of Patent: March 12, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Jiro Tsukahara, Hiroshi Arakatsu
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Patent number: 5395748Abstract: An inexpensive, ballasted optical brightener for use in photographic elements is prepared by reacting an optical brightener of the formula ##STR1## where M is a cation; X is a group capable of undergoing nucleophilic displacement; and Z is ##STR2## or --O--R.sub.3, where each of R1 and R2 is a hydrogen atom, or an aromatic group which can be unsubstituted or substituted with one or more groups unreactive towards X; and R3 is an aromatic group which can be unsubstituted or substituted with one or more groups unreactive towards Xwith a water soluble polymer, such as gelatin. The resulting ballasted optical brightener is stable in aqueous photographic compositions.Type: GrantFiled: December 8, 1993Date of Patent: March 7, 1995Assignee: Eastman Kodak CompanyInventors: Anthony Adin, Pranab Bagchi
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Patent number: 5362613Abstract: A cationic high-molecular weight compound is represented by formula (I): ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and each represents a hydrogen atom or C.sub.1-6 lower alkyl group; L.sup.1 represents --COO-- or --CONH-- and L.sup.2 represents a divalent group; J represents a C.sub.1-20 alkylene group or C.sub.7-20 aralkylene group; R.sup.3, R.sup.4 and R.sup.5 may be the same or different and each represents a C.sub.1-20 alkyl group or C.sub.7-20 aralkyl group; X.sup.Type: GrantFiled: January 15, 1993Date of Patent: November 8, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Kentaro Shiratsuchi, Fumio Kawamoto
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Patent number: 5308747Abstract: A photographic recording material comprising a support bearing at least one photographic layer comprising a sensitized high aspect ratio tabular grain silver halide emulsion and at least one spatially fixed dye layer spatially positioned between said silver halide layer and the upper surface of said recording material, said dye layer comprises a spatially fixed dye that absorbs light in the region of the spectrum to which the silver halide is sensitized.Type: GrantFiled: April 16, 1992Date of Patent: May 3, 1994Assignee: Eastman Kodak CompanyInventors: Richard P. Szajewski, James P. Merrill, Allan F. Sowinski
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Patent number: 5250409Abstract: A silver halide photographic material which comprises a support having thereon one or more constituent layers including at least one silver halide emulsion layer, wherein at least one of said constituent layers is a layer formed by (a) coating a composition which contains a high molecular weight compound having at least one repeating unit represented by the following formula (I), and then (b) making the composition undergo a crosslinking reaction: ##STR1## wherein R.sub.1 represents a hydrogen atom, an alkyl group, a chlorine atom, or a cyano group; R.sub.2 and R.sub.3, which may be the same or different, each represents an alkyl group; L.sub.1 and L.sub.2 each represents a divalent linking group; Y represents --O--, or ##STR2## wherein R.sub.4 represents a hydrogen atom, or an alkyl group; X represents a crosslinking group containing an activated vinyl component; and Z represents a counter ion for balancing the electric charge.Type: GrantFiled: August 27, 1992Date of Patent: October 5, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Shoichiro Yasunami, Yasuo Mukunoki
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Patent number: 5230993Abstract: A photographic light-sensitive material for medical use or nondestructive testing use is described, comprising (1) a support having thereon at least one light-sensitive silver halide emulsion layer, and (2) a polymer located on the same side of the support as an emulsion layer and capable of providing a cation site in a fixing solution.Type: GrantFiled: April 24, 1990Date of Patent: July 27, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Sumito Yamada, Ichizo Toya, Tomokazu Yasuda, Shigeru Ohno
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Patent number: 5169747Abstract: Improved radiation-sensitive elements comprise a support; a radiation-sensitive layer; and an auxiliary layer comprising an absorbing amount of an anionic dye, and a synthetic amphoteric polymer comprising: acrylic acid and N,N-dialkylaminoethyl methacrylate; wherein alkyl=methyl or ethyl, the molar ratio of (a):(b).ltoreq.1:1; said polymer has an isoelectric point of 7.0-11.2; and said polymer is present in said auxiliary layer in an amount sufficient to mordant said anionic dye.Type: GrantFiled: April 21, 1992Date of Patent: December 8, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventors: Robert P. Foss, Thomas D. Weaver
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Patent number: 5104778Abstract: A silver halide photosensitive material is disclosed, comprising a support having thereon at least one silver halide photosensitive layer and at least one layer containing an acidic dye, a cationic polymer mordant and gelatin, wherein said mordant containing layer further contains a dispersion of an anionic polymer thickener represented by formula (I):--A.sub.x --B).sub.y --E).sub.Type: GrantFiled: May 25, 1990Date of Patent: April 14, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Junichi Yamanouchi, Kazuhiko Takeuchi
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Patent number: 5077187Abstract: Polymers comprising recurring units represented by the structure: ##STR1## where R.sup.1, R.sup.2, D, J, Y, a, b, and c are as defined herein are useful for controlling wandering of filter dyes in photographic elements.Type: GrantFiled: October 4, 1990Date of Patent: December 31, 1991Assignee: Eastman Kodak CompanyInventors: Ronda E. Factor, Ignazio S. Ponticello
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Patent number: 5023162Abstract: A photographic element comprising a polymer mordant containing a repeating unit containing a tertiary amino group or a quaternary ammonium salt and at least one reprating unit represented by the formula (I) or (II): ##STR1## wherein R.sup.1 represents a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms R.sup.2, R.sup.3, R.sup.4 and R.sup.5, which may be the same or different, each represent an alkyl group or substituted alkyl group; R.sup.6, R.sup.7, and R.sup.8, which may be the same or different, each represent hydrogen, an alkyl group or a substituted alkyl group; R.sup.11 represents an alkyl group, a substituted alkyl group, an alkoxy group, a substituted alkoxy group, an acylamino group or a halogen atom; R.sup.12 and R.sup.13, which may be the same or different, each represent an alkyl group or a substituted alkyl group; L.sup.1 and L.sup.Type: GrantFiled: July 20, 1989Date of Patent: June 11, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Junichi Yamanouchi, Kentaro Shiratsuchi, Yukio Karino, Takeshi Shibata
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Patent number: 5015562Abstract: A light-sensitive material is disclosed, comprising a support having thereon at least one light-sensitive silver halide emulsion layer, wherein at least one layer containing at least one of a mordant and a dye is provided on at least one side of the support, and at least one layer which is provided on the same side of the layer containing the mordant and dye contains a water-soluble ionic polymer as an agent for reducing color remaining. The light-sensitive material has improved sharpness, freedom from color remaining after processing, and excellent drying properties suitable for rapid processing.Type: GrantFiled: October 12, 1990Date of Patent: May 14, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Ichizo Toya, Sumito Yamada, Koichi Suematsu
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Patent number: 5006450Abstract: Polymers comprising repeating units having the structure: ##STR1## where R.sup.1, R.sup.3, D, Y, x, and y are as defined herein are useful for controlling wandering of filter dyes in photographic elements.Type: GrantFiled: November 15, 1989Date of Patent: April 9, 1991Assignee: Eastman Kodak CompanyInventors: Ronda E. Factor, Ignazio S. Ponticello
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Patent number: 5001044Abstract: A silver halide photographic material which comprises a support having provided thereon at least one silver halide emulsion layer and at least one layer comprising a polymer containing a group which can be dissociated to form a cation in a fixer, wherein a layer containing substantially no silver halide grains is provided between the layer comprising the polymer and the silver halide emulsion layer. The photographic material exhibits a high fixing speed and is substantially free from surface defects such as streaking and acne.Type: GrantFiled: August 17, 1990Date of Patent: March 19, 1991Assignee: Fuji Photo Film Co.Inventor: Ichizo Toya
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Patent number: 4965180Abstract: A silver halide photographic material which comprises a support having a subbing layer containing an aqueous polymer latex represented by the following formula (I), which has a cross linked structure: ##STR1## wherein A represents an ethylenic unsaturated monomer unit; R.sub.1 represents a hydrogen atom or a lower alkyl group having from 1 to 6 carbon atoms; L represents a divalent group having from 1 to 12 carbon atoms; R.sub.2, R.sub.3 and R.sub.4, which may be the same or different, each represents an alkyl group, an aralkyl group or a hydrogen atom; Q represents nitrogen or phosphorus; X-represents an anion other than iodine ion; and B represents a structural unit in which copolymerizable monomers having at least two ethylenic unsaturated groups have been copolymerized: x is selected to constituted from 0 to 90 mol%; y is selected to constitute from 10 to 99.9 mol%; z is selected to constitute from 0.1 to 50 mol%; and R.sub.2, R.sub.3 and R.sub.Type: GrantFiled: December 21, 1988Date of Patent: October 23, 1990Assignee: Fujii Photo Film Co., Ltd.Inventors: Koichi Suematsu, Sumito Yamada, Tomokazu Yasuda, Junichi Yamanouchi, Yasuo Mukunoki
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Patent number: 4957856Abstract: A silver halide photographic material which comprises a support having provided thereon at least one light-sensitive silver halide emulsion layer and at least one subbing layer, wherein the at least one subbing layer comprises a binder, a polymer represented by formula (I), a dye represented by formula (II) and a nonionic surface active agent, all described hereinbelow, which has improved sharpness by virtue of the decoloring capable anti-halation function provided by the subbing layer.Type: GrantFiled: February 8, 1989Date of Patent: September 18, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Koichi Suematsu, Sumito Yamada, Shigeru Ohno, Tadashi Ito
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Patent number: 4952484Abstract: A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein said emulsion layer or other hydrophilic colloid layer contains a colored polymer matting agent. The colored matting agent comprises a dye adsorbed to a polymer. The dye is selected to adsorb light in the same wavelength region that to which the photographic material is exposed. Use of the present invention inhibits the occurrence of black spots.Type: GrantFiled: February 21, 1989Date of Patent: August 28, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Kazunobu Katoh, Keiichi Adachi
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Patent number: 4942103Abstract: A solid state color image sensing device comprising a semiconductive support having a surface comprising an array of light sensing pixels and superimposed thereon in microregistration a color filter array having at least three sets of dyed filter elements is characterized in that at least one set of the filter elements is formed from a negative-working dyeable photoresist composition comprising, in admixture,(a) a poly(vinyl alcohol) binder,(b) a radiation-sensitive dichromate, and(c) a polymeric mordant comprising recurring units derived from a quaternized N-vinylimidazole.Color filter elements prepared from the dyeable photoresist composition have high resolution, excellent clarity and dye uptake, and low absorbance of blue light and thus are particularly useful in high quality high resolution solid state color imaging sensors having excellent thermal and light stability. A method of making the above-described device is disclosed.Type: GrantFiled: June 24, 1988Date of Patent: July 17, 1990Assignee: Eastman Kodak CompanyInventors: Raymond F. Reithel, Richard C. Sutton
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Patent number: 4935337Abstract: There is provided a silver halide photographic material wherein a hydrophilic colloid layer is dyed with a new water-soluble dye that will not adversely affect the photographic characteristics of the silver halide emulsion layer. The silver halide photographic material exhibits excellent performance in that the dye is photochemically inactive such that not allow the sensitivity to lower, the latent image to fade, or the image to fog, and the decoloring or dissolving of the dye proceed rapidly in a photographic processing step, leaving no detrimental color on the processed photographic material.Type: GrantFiled: October 20, 1988Date of Patent: June 19, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Shigeru Kuwashima, Yoshihiro Jimbo, Keiichi Adachi
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Patent number: 4933268Abstract: A silver halide photographic material comprising a support having thereon at least one hydrophilic colloid layer containing at least one dye represented by formula (I), ##STR1## wherein R.sub.1 represents a substituted aryl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted heterocyclic group, each group being substituted by at least one carboxylic acid group or sulfonic acid group; R.sub.2 represents --CONR.sub.3 R.sub.4 or --NR.sub.3 COR.sub.4, wherein R.sub.3 represents a hydrogen atom or an alkyl group and R.sub.4 represents a substituted or unsubstituted alkyl group or a substituted or unsubstituted aralkyl group having a hydrophobic substituent constant .pi. in the range of about 1.60.ltoreq..pi..ltoreq.about 3.90; L.sub.1, L.sub.2, and L.sub.3 each represents a substituted or unsubstituted methine group; and n represents 0, 1, or 2.Type: GrantFiled: November 14, 1988Date of Patent: June 12, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Shigeru Ohno, Tadashi Ito, Sumito Yamada, Tomokazu Yasuda, Keiichi Adachi
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Patent number: 4925782Abstract: A silver halide photographic light-sensitive material, in which a highly immobile novel arylidene bis type of dye which selectively dyes a specific layer and does not diffuse into other layers is incorporated in a hydrophilic colloidal layer. The dye used in this light-sensitive material can be easily removed upon photographic processing, and does not adversely affect photographic properties, particularly spectral sensitization, of the photographic emulsions.Type: GrantFiled: February 13, 1989Date of Patent: May 15, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Masahiro Okada, Toshinao Ukai, Seiji Suzuki, Keiichi Adachi, Toshiyuki Watanabe, Kunio Ishigaki
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Patent number: 4920036Abstract: A photosensitive recording material employable in a printing art, etc. comprising a support, an intermediate layer, and a photosensitive resin layer which comprises a pigment, superposed in this order, which is characterized in that said pigment has an anionic group and said photosensitive resin layer contains a compound having a cationic group.Type: GrantFiled: September 7, 1989Date of Patent: April 24, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Mikio Totsuka, Fumiaki Shinozaki, Yuichi Wakata, Tomizo Namiki
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Patent number: 4879204Abstract: A silver halide photographic material is described, comprising a support having formed thereon at least one silver halide emulsion layer and at least one light-insensitive hydrophilic colloid layer, wherein at least one of layers consisting of said at least one silver halide emulsion layer and said at least one light-insensitive hydrophilic colloid layer contains a hydrazine derivative, and wherein at least one of said at least one light-insensitive hydrophilic colloid layer that is formed on the uppermost silver halide emulsion layer contains a dye.Type: GrantFiled: August 16, 1988Date of Patent: November 7, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Kunio Ishigaki, Toshiro Takahashi, Yuji Mihara, Keiichi Adachi, Shigeru Ohno, Masahiro Okada, Naomi Saeki
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Patent number: 4876167Abstract: A color filter array is disclosed containing interlaid sets of laterally displaced filters comprised of a polymeric matrix and at least one dye. At least one of the sets of filters is comprised of an anionic dye and a cationic polymeric mordant having crosslinking repeating units containing two quaternary ammonium mordanting moieties and a photogenerated ethylenic crosslinking moiety.Type: GrantFiled: August 20, 1987Date of Patent: October 24, 1989Assignee: Eastman Kodak CompanyInventors: Robert A. Snow, Hugh G. McGuckin, Ignazio S. Ponticello, Robert C. Daly, Laurel J. Pace, Sandra K. Fischer, Michael J. Hanrahan
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Patent number: 4808510Abstract: A photographically negative-working patternable mordant composition is disclosed containing a photocrosslinkable polymer comprised of, for providing both mordanting and crosslinking sites, repeating units of the formula: ##STR1## wherein Ar is an aromatic linking group,R is a methylene group,R.sup.1 is independently in each occurrence a lower alkyl group,R.sup.2 is a divalent linking group,X is a photocrosslinking group, andZ is a charge balancing counter ion.The mordant composition can be coated on a support to form a photographic element.Type: GrantFiled: August 20, 1987Date of Patent: February 28, 1989Assignee: Eastman Kodak CompanyInventors: Robert A. Snow, Hugh G. McGuckin, Ignazio S. Ponticello, Robert C. Daly, Laurel J. Pace, Sandra K. Fischer, Michael J. Hanrahan
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Patent number: 4801525Abstract: A silver halide light-sensitive material is disclosed, comprising a support having provided thereon a silver halide emulsion layer that has been infrared-sensitized so as to have a sensitivity maximum at a wavelength longer than 750 nm and at least one light-insensitive hydrophilic colloidal layer on said silver halide emulsion layer, wherein said light-insensitive hydrophilic colloidal layer contains at least one dye having an absorption maximum at a wavelength shorter than 750 nm. The material has high sensitivity to infrared light, but can be handled under bright safelight.Type: GrantFiled: July 31, 1987Date of Patent: January 31, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Yuji Mihara, Kunio Ishigaki
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Patent number: 4721666Abstract: A photographic element comprising at least one layer containing a polymeric mordant represented by formula (I) ##STR1## wherein A represents a repeating unit derived from a copolymerizable monomer having at least two ethylenically unsaturated groups;B represents a repeating unit derived from a copolymerizable ethylenically unsaturated monomer other than the repeating unit of A and the repeating unit having the copolymerization ratio of z;R.sup.1 represents a hydrogen atom or a lower alkyl group;R.sup.2, R.sup.3, and R.sup.4 each represents an unsubstituted or substituted alkyl or aralkyl group, or two or more of R.sup.2, R.sup.3, and R.sup.4 are bonded to form a cyclic structure together with the adjacent nitrogen atom, and the total number of carbon atoms of R.sup.2, R.sup.3, and R.sup.4 is 12 or more;R.sup.5 represents an unsubstituted or substituted alkyl, alkoxy, or acylamino group having 1 to 20 carbon atoms, or a halogen atom;m is 0, 1 or 2, and n is an integer of from 1 to 12;X.sup..crclbar.Type: GrantFiled: August 8, 1986Date of Patent: January 26, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Junichi Yamanouchi, Masaharu Toriuchi
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Patent number: 4695531Abstract: A light-sensitive silver halide element for radiographic use with intensifying screens has coated on at least one side of a transparent base at least a spectrally sensitized silver halide emulsion layer and, coated between the base and a silver halide emulsion layer, a hydrophilic colloid layer containing a water-soluble acid dye capable of being decolorized during the photographic processing, said dye having its absorption in a region of the electromagnetic spectrum corresponding to the spectral sensitivity of the silver halide emulsion, associated with a basic polymeric mordant which comprises repeating units of formula: ##STR1## wherein R.sub.1 is hydrogen or a methyl group, A is a --COO-- or --COO--alkylene group, R.sub.2 is hydrogen or a lower alkyl group and X is an anion.The invention allows the use of low coverage weights of silver halide light-sensitive elements and provides x-ray images with a favorable image quality and sensitivity ratio.Type: GrantFiled: July 17, 1986Date of Patent: September 22, 1987Assignee: Minnesota Mining and Manufacturing CompanyInventors: Gerolamo Delfino, Simone Franco, Cesare Verdi
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Patent number: 4626497Abstract: A light-sensitive recording material which provides polymer images and contains, on a base, a layer of a photocrosslinkable polymer with an average molecular weight of 10.sup.3 to 10.sup.6, the copolymer having been prepared from(1) a (meth)acrylate, (meth)acrylamide or vinyl ether derivative which contains at least one maleimide group of the formula ##STR1## in which R.sub.1 and R.sub.2 are each alkyl having 1 to 4 carbon atoms, or R.sub.1 and R.sub.2 together with the carbon atoms to which they are bonded form a 5-membered or 6-membered carbocyclic ring,(2) an ethylenically unsaturated comonomer containing acid groups, this comonomer being present in an amount of at least 18 percent by weight, based on the total amount of the comonomers, and, optionally,(3) at least one further ethylenically unsaturated comonomer which differs from the comonomers (1) and (2).Type: GrantFiled: May 24, 1985Date of Patent: December 2, 1986Assignee: Ciba-Geigy AGInventors: Martin Roth, Beat Muller, Joseph Berger, Peter Loew
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Patent number: 4600687Abstract: A photographic light-sensitive material having at least one layer containing a polymer having a repeating unit of the formula (I): ##STR1## wherein A is a monomer unit prepared by copolymerizing copolymerizable ethylenically unsaturated monomers; R.sub.1 is hydrogen or a lower alkyl group having 1 to 6 carbon atoms; Q is ##STR2## (wherein R.sub.1 is the same as defined above) or an arylene group having 6 to 10 carbon atoms; L is a divalent group having 3 to 15 carbon atoms and containing at least one linking group selected from the members consisting of ##STR3## (wherein R.sub.1 is the same as defined above) or a divalent group having 1 to 12 carbon atoms and containing at least one linking group selected from the members consisting of ##STR4## (wherein R.sub.1 is the same as defined above); R.sub.2 is --CH.dbd.CH.sub.2 or --CH.sub.2 CH.sub.Type: GrantFiled: April 22, 1985Date of Patent: July 15, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Taku Nakamura, Mitsunori Hirano, Masasi Ogawa, Kunio Ishigaki
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Patent number: 4598030Abstract: Photographic elements, diffusion transfer assemblages and coordination complexes are described which employ a novel nondiffusible compound capable of releasing at least one diffusible dye moiety having the formula: ##STR1## wherein: (a) D.sup.1, D.sup.2 and D.sup.3 each independently represents the atoms necessary to complete an aromatic heterocyclic nucleus having at least one ring of 5 to 7 atoms;(b) Z.sup.1 and Z.sup.2 each independently represents the atoms necessary to complete an aromatic carbocyclic or heterocyclic nucleus having at least one ring of 5 to 7 atoms or a ketomethine group;(c) G.sup.1 and G.sup.2 each independently represents a metal chelating group;(d) Me is a polyvalent, hexacoordinate metal ion,(e) CAR represents a ballasted carrier moiety capable of releasing the diffusible dye moiety as a function of development of the silver halide emulsion layer under alkaline conditions; and(f) n is 1, 2 or 3.Type: GrantFiled: August 2, 1985Date of Patent: July 1, 1986Assignee: Eastman Kodak CompanyInventor: James A. Reczek
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Patent number: 4533621Abstract: Photographic element used in color diffusion transfer processes comprising an image receiving layer containing a polymer having monomer units represented by either Formula I or Formula II ##STR1## wherein A is a copolymerizable monomer unit having at least two ethylenically unsaturated groups; B and B' are copolymerizable .alpha.,.beta.-ethylenically unsaturated monomer units; each R.sub.1 is independently hydrogen or methyl; R.sub.2 and R.sub.3 are independently hydrogen, alkyl, or aryl; R.sub.4, R.sub.5 and R.sub.6 are independently alkyl groups; L.sub.1 and L.sub.2 are independently divalent combining groups; X is a monovalent anion; x, y, z, p, q, r, and s, are each copolymerization mole percentages as follows: 0.5.ltoreq.x.ltoreq.6, 0.ltoreq.y.ltoreq.79.5, 20.ltoreq.z.ltoreq.99.5, 0.ltoreq.p.ltoreq.6, 0.ltoreq.q.ltoreq.80, 10.ltoreq.r.ltoreq.90, and 10.ltoreq.s.ltoreq.90.Type: GrantFiled: July 9, 1984Date of Patent: August 6, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Satoru Ikeuchi, Yoshihiro Inaba, Hiroshi Shimazaki, Tatsuhiko Kobayashi
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Patent number: 4500631Abstract: A radiographic image forming process comprising imagewise exposing a negative type silver halide light-sensitive photographic material in combination with a fluorescent intensifying screen to radiation and then treating said material with a processing solution, said material comprising a support and constituent layers coated on both sides of said support, said layers containing(a) light sensitive silver halide particles,(b) metallic salt particles which are not light-sensitive and, when untreated, are more soluble in said processing solution than said silver halide particles, said metallic salt particles having been treated so that the surface thereof has been rendered less soluble than said silver halide by a dissolution retarder,(c) physical development nuclei, and(d) compounds selected from water soluble dyes having absorption maxima in an aqueous solution of from 400 to 600 nm or compounds selected from said water soluble dyes coupled to a non-diffusive mordant, andsaid processing solution containing at lType: GrantFiled: August 5, 1983Date of Patent: February 19, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Eiichi Sakamoto, Mikio Kawasaki, Kouji Ono, Kakujulo Fukuoji, Noboru Fujimori
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Patent number: 4474872Abstract: A method for producing a photographic emulsion is disclosed. The method includes the process of adding a dispersion of a substantially water-insoluble photographic additive to a photographic emulsion. The dispersion being prepared merely by mechanically grinding and dispersing the photographic additive in a form of fine grain having a size of 1.mu. or less in an aqueous system adjusted to a pH value of 6 to 8 and controlled to a temperature of 60.degree. to 80.degree. C. The additive is included in the photographic emulsion without the need of an organic solvent. The emulsion of the invention can be easily and quickly coated to form a uniform layer.Type: GrantFiled: December 17, 1982Date of Patent: October 2, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroshi Onishi, Kazutoshi Inada, Nobuaki Miyasaka, Naoyasu Deguchi, Masayuki Kuroishi
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Patent number: 4424272Abstract: Polymeric mordants which are capable of converting to non-mordanting species in an alkaline environment are described. The mordants can be used in photographic elements to temporarily mordant a photographically useful dye material, such as a light-filter or anti-halation dye or a diffusion transfer image dye-providing material, and then release the dye material during processing of the element with an alkaline processing composition.Type: GrantFiled: August 3, 1981Date of Patent: January 3, 1984Assignee: Polaroid CorporationInventor: Lloyd D. Taylor
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Patent number: 4418131Abstract: Photographic elements, diffusion transfer assemblages, coordination complexes and processes are described which employ a novel nondiffusible compound having a releasable yellow dye moiety or precursor thereof, the compound having the formula: ##STR1## wherein: (a) X represents the atoms necessary to complete a 5- or 6-membered aromatic heterocyclic fused ring;(b) Z represents alkyl, substituted alkyl, aryl or substituted aryl;(c) R represents CN or J-L;(d) J represents a bivalent ##STR2## (e) L represents alkyl, substituted alkyl, aryl, substituted aryl, or can be taken together with Z to complete a carbonyl-containing 5- or 6-membered heterocyclic or carbocyclic ring;(f) Z.sup.Type: GrantFiled: April 14, 1983Date of Patent: November 29, 1983Assignee: Eastman Kodak CompanyInventor: Steven Evans
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Patent number: 4379838Abstract: Addition polymers containing at least 10 mole % of recurring structural units of formula I are useful mordants for acid dyes which preferably contain at least two sulfo groups. The polymers can be used together with the dyes in dyed layers of photographic recording materials, such as in antihalo or filter layers. ##STR1## in which Q represents N or P;R.sup.1, R.sup.2, R.sup.3 represent alkyl or carbocyclic radicals or two of R.sup.1, R.sup.2 and R.sup.3 complete a 5- or 6-membered heterocyclic ring,R.sup.4 represents H or alkyl,X.sup..crclbar. represents an anion.Type: GrantFiled: October 5, 1981Date of Patent: April 12, 1983Assignee: Agfa-Gevaert AktiengesellschaftInventors: Gunter Helling, Hans hlschlager, Wolfgang Himmelmann, Manfred Beck
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Patent number: 4376162Abstract: A heat-developable photosensitive material is disclosed having a high image sharpness. The material is comprised of a heat-developable photosensitive layer which includes an organic silver salt, a photocatalyst, and a reducing agent. An antihalation layer is provided on the opposite face of the material with respect to the side intended for imagewise exposure. The antihalation layer contains a photosensitive halogen-containing compound which reduces the pH of the antihalation layer by photolysis and is colored with a dye which causes a change of color when the pH of the antihalation layer is reduced.Type: GrantFiled: October 19, 1981Date of Patent: March 8, 1983Assignee: Fuji Photo Film Co., Ltd.Inventors: Ken Kawata, Isamu Itoh, Misao Awata, Takao Masuda
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Patent number: 4370412Abstract: A combination of two anionic surfactants, one of which is an alkyl sulfate surfactant, such as sodium dodecyl sulfate, and the other of which is an N-acyl sarcosinate surfactant, such as sodium lauroyl sarcosinate, is used as a coating aid in aqueous coating compositions comprising a hydrophilic colloid. The combination of surfactants provides a coating composition which combines the advantage of good wetting or spreading characteristics with the advantage of excellent ability to avoid repellency defects. Such coating compositions are especially useful in the coating of gelatin silver halide emulsion layers or other hydrophilic colloid layers in photographic materials.Type: GrantFiled: September 14, 1978Date of Patent: January 25, 1983Assignee: Eastman Kodak CompanyInventors: Susan J. Cruikshank, Michael W. Orem
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Patent number: 4369310Abstract: Dyestuffs of the general formula ##STR1## wherein A and B each represent a cyano, acyl or carbalkoxy group save that when A is cyano B cannot be cyano or carbalkoxy, or A and B form together with the carbon atom to which they are attached a carbocyclic or heterocyclic ring system, R.sub.1 is hydrogen, alkyl or alkoxy, R.sub.2 alkyl, R.sub.3, R.sub.4, R.sub.5 each are hydrogen, alkyl, carboxyalkyl, alkoxy-carbonyl-alkyl or aryl, or two of R.sub.3, R.sub.4 and R.sub.5 or all three R.sub.3, R.sub.4 and R.sub.5 may form together with the nitrogen atom to which they are bonded a ring system, Z is a linking group and X.sup..crclbar. an anion.The dyes can be bleached easily and they are suitable as antihalation or filter dyes in photographic materials.Type: GrantFiled: October 22, 1980Date of Patent: January 18, 1983Assignee: Ciba-Geigy Ltd.Inventor: Stephen R. Postle
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Patent number: 4367272Abstract: A photographic print prepared by a color diffusion transfer process comprising at least a support, a mordant layer containing therein a diffusion transfer dye image, and a white reflection layer constituting the background of the dye image and containing therein at least one compound represented by formula (I): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 may be the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an aralkyl group, an alkoxy group, an aryloxy group, an aralkyloxy group, an alkenyl group, an alkenyloxy group, an alkylthio group, an arylthio group, an acyl group, an acylamino group, a diacylamino group, an alkylamino group, a sulfonamido group, an acyloxy group, an alkoxycarbonyl group, or an aryloxycarbonyl group, and A represents a non-metallic atom group necessary for forming a 5- or 6-membered ring.Type: GrantFiled: April 28, 1981Date of Patent: January 4, 1983Assignee: Fuji Photo Film Co., LtdInventors: Hiroshi Hayashi, Tsutomu Hamaoka, Masakazu Morigaki