Gelatin Other Than Radiation Sensitive Type Patents (Class 430/539)
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Patent number: 4460679Abstract: High speed, high quality positive or negative photographic elements comprising, in order, (1) a support, (2) a nonphotosensitive layer on said support containing a chemically bleachable, high strength tinctorial colorant, and (3) at least one photosensitive silver halide emulsion layer, characterized by the interposing of a timing layer between layers (2) and (3), and the addition of a hardener to layer (2).Type: GrantFiled: July 15, 1983Date of Patent: July 17, 1984Assignee: E. I. Du Pont de Nemours and CompanyInventor: Frank L. Schadt, III
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Patent number: 4460680Abstract: A silver halide photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and a light-insensitive uppermost layer is disclosed. The light-insensitive uppermost layer has a melting time longer than that of the light-sensitive silver halide emulsion layer and the thickness of the light-insensitive uppermost layer is from 1.3 .mu.m to 5.0 .mu.m. The silver halide photographic light-sensitive material has an improved covering power and results in remarkably low degree of reticulation. Furthermore, when the material is used it results in a reduced amount of scum being formed in the processing solution.Type: GrantFiled: August 25, 1982Date of Patent: July 17, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Masashi Ogawa, Kunio Ishigaki, Nobuyuki Iwasaki, Taku Nakamura
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Patent number: 4459352Abstract: An aqueous coating composition comprises (a) a hydrophilic binder; (b) an ester of cellulose having at least 8 acyl groups per C.sub.24 cellulose unit wherein at least a majority of the acyl groups are derived from an aliphatic polycarboxylic acid having from 3 to 6 carbon atoms; or a salt of the ester; and (c) a hardening agent in an amount sufficient to render the composition water-insoluble after coating and drying of the composition. This coating composition is useful for forming water-insoluble, conductive and highly-adherent layers in composite bases or elements, and particularly in photographic elements having hydrophobic supports. The conductive layers can be used, for example, as conducive subbing layers or conductive pelloid layers.Type: GrantFiled: December 27, 1982Date of Patent: July 10, 1984Assignee: Eastman Kodak CompanyInventors: Raymond T. Jones, James E. Kelly, Karen L. Mott
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Patent number: 4456682Abstract: A silver halide color photographic material is disclosed. The material has improved developing characteristics which are obtained by containing both a substantially light-insensitive silver halide and at least one specific 3-pyrazolidone compound. The substantially light-insensitive silver halide includes a halogen composition consisting of 0 to 100 percent of bromide, 0 to 2 percent of iodine and the residual percent of chlorine, a mean grain size of 0.01 to 0.3.mu., and a coverage of 5 to 500 mg/m.sup.2. The 3-pyrazolidone compound has the following general formula (I): ##STR1## wherein X represents a hydrogen atom or an acetyl group; R represents an aryl group; and R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents a hydrogen atom, an alkyl group or an aryl group, and they may be the same as or different from one another. The material can be developed at an increased speed and is not accompanied by undesirable photographic effects such as fogging.Type: GrantFiled: September 21, 1982Date of Patent: June 26, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Akio Mitsui, Masakazu Morigaki, Takashi Nakamura
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Patent number: 4455365Abstract: A silver halide photographic material for a photomechanical process which has an excellent reduction processing aptitude is disclosed. The material is comprised of a support having a light-sensitive silver halide emulsion layer thereon and a light-insensitive layer disposed outside the silver halide emulsion layer. The light-insensitive layer contains a hydrophilic colloidal binder coated in such an amount per unit area as to be 1.0 or more times that of a hydrophilic colloidal binder contained in the silver halide emulsion layer.Type: GrantFiled: August 26, 1982Date of Patent: June 19, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Yukihide Urata, Yasuo Kasama, Shigenori Moriuchi, Eiichi Okutsu
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Patent number: 4450229Abstract: The addition of a class of compounds to a photothermographic emulsion reduces latent image fade.Type: GrantFiled: May 13, 1983Date of Patent: May 22, 1984Assignee: Minnesota Mining and Manufacturing CompanyInventor: Jack E. Reece
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Patent number: 4450230Abstract: Photographic elements, comprising a support, at least a light-sensitive silver halide emulsion layer and an external non light-sensitive gelatin protective layer, have the surface delustered by the presence in the external protective layer of water-soluble vinyl polymers which contain, as pendant groups, methylolamide moieties.Preferably said water-soluble vinyl polymers are polymethylolacrylamide and copolymers of methylolacrylamide and other unsaturated vinyl monomers, such as ethylacrylate, acrylamide, acrylic acid, ethylvinylether and butylvinylether, said copolymers containing at least 50% by weight of unities derived from the vinyl monomer containing the methylolamide moiety.Type: GrantFiled: October 18, 1982Date of Patent: May 22, 1984Assignee: Minnesota Mining and Manufacturing CompanyInventors: Gerolamo Delfino, Simone Franco
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Patent number: 4447525Abstract: A matt surface can be provided on a photographic material comprising a support base, one or more light-sensitive gelatin silver halide emulsion layers and an outer non-light-sensitive gelatin layer coated on said layers if discrete particles, insoluble in water and substantially soluble in aqueous alkaline medium, of a carboxyl group containing copolymer are introduced into said outer layer. The particles, of a diameter between 0.5 and 4 micron, are introduced into the coating composition of the outer layer as a dispersion of a methacrylic acid and ethylmethacrylate copolymer containing 20 to 50 percent by weight of methacrylic acid, which dispersion is obtained by dispersing in an aqueous solution of a hydrophilic colloid a solution of said copolymer in ethylacetate or water-including ethylacetate.Type: GrantFiled: September 17, 1982Date of Patent: May 8, 1984Assignee: Minnesota Mining and Manufacturing CompanyInventors: Angelo Vallarino, Lorenzo Vittore
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Patent number: 4429032Abstract: The adherence of a hydrophilic layer containing a hydrophilic colloid binder upon the surface of a vinyl chloride polymer free of hydrophilic recurring units is improved by exposing the polymer surface to a corona discharge sufficient to satisfy a particular wetting test described in the specification, and colloidal silica is dispersed within the hydrophilic layer in a weight ratio range relative to the binder of 1:5-2:1.Type: GrantFiled: May 10, 1982Date of Patent: January 31, 1984Assignee: Agfa-Gevaert N.V.Inventors: Herman L. Matthe, Lucien J. Van Gossum, Ludovicus M. Mertens
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Patent number: 4427757Abstract: A tannable photographic element and method therefore, the element comprising a uniquely treated opaque, translucent, or transparent base support and having at least one pigment in reactive association with the silver halide emulsion layer is useful in the graphic arts. The base support comprises an extremely thin gelatin subbing layer substantially free of hardener, or no subbing at all, on a primed base support.Type: GrantFiled: May 18, 1983Date of Patent: January 24, 1984Assignee: Minnesota Mining and Manufacturing CompanyInventors: George W. Beebe, Michael T. Macioch
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Patent number: 4426443Abstract: A method of preparing a gelled product from an ungelled aqueous hydrolyzed collagen, such as gelatin or glue, concentrate containing 10-60 weight percent hydrolyzed collagen and a lyotropic agent is disclosed. The concentrate has a hydrolyzed collagen-to-lyotropic agent weight ratio of 1:0 of 1:0.1 to about 1:4.5, a pH value of 2.5-7 and gels at less than 20.degree. C. On dilution with water to a hydrolyzed collagen concentration of about 2 weight percent while substantially maintaining the pH value of the concentrate, the diluted composition gels at a temperature above that of the concentrate. Specific concentrates, food products, industrial applications and methods for using the concentrates are disclosed.Type: GrantFiled: August 27, 1981Date of Patent: January 17, 1984Assignee: DynaGel, IncorporatedInventor: Joseph L. Shank
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Patent number: 4407939Abstract: A photographic light-sensitive material composed of a support having a subbing layer and a silver halide emulsion layer formed thereon. The subbing layer comprised of a first subbing layer disposed to the support and a second subbing layer containing (i) a gelatin derivative and/or (ii) a polymer having the recurring unit shown by general formula (I) and/or (II) ##STR1## wherein R is a hydrogen, an alkyl group having 1 to 6 carbons, or a halogen; M is hydrogen, an alkali metal, an alkaline earth metal, or an organic base; X is an alkyl group having 1 to 6 carbons, an alkoxy group having 1 to 6 carbons, an alkylamino group having 1 to 6 carbons, or a halogen; m is 0, 1 or 2; and n is 1 or 2 ##STR2## wherein R' is hydrogen or an alkyl group; X' is a hydrogen, a halogen, a nitro group, a cyano group, an alkyl group, an alkoxy group, an alkoxycarbonyl group, an alkylsulfonyl group, an aryloxy group, an acyl group, an acyloxy group, or an acylamido group; m' is 0, 1 or 2; and n' is 1 or 2.Type: GrantFiled: April 2, 1981Date of Patent: October 4, 1983Assignee: Fuji Photo Film Co., Ltd.Inventors: Takashi Naoi, Hiroshi Kawasaki, Jun Yamaguchi, Sumitaka Tatsuta, Hidefumi Sera
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Patent number: 4399213Abstract: A silver halide photosensitive material comprising a support, a silver halide photosensitive layer, and a protective layer formed on said support. The protective layer is essentially composed on a plurality of non-photosensitive hydrophilic colloidal layers at least one of which contains oil particles. The outermost layer of the hydrophilic colloidal layers contains a matting agent in the form of colloidal particles and has a thickness of not more than one fourth of the average size of the matting agent particles and wherein the density of the oil particles in said outermost layer does not exceed 0.2 by volume of the binder, and that of the oil particles in the protective layers other than the outermost layer is in the range of 0.1 to 0.8.Type: GrantFiled: October 16, 1981Date of Patent: August 16, 1983Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Yoshikazu Watanabe, Motoaki Tanaka
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Patent number: 4396709Abstract: The adhesion resistance of a silver halide photographic light-sensitive medium comprising a support, at least one emulsion layer provided on one side of the support and a backing layer provided on the other side can be improved by incorporating an acid-treated gelatin and a gelatin hardener containing therein a vinyl sulfone group into the backing layer.Type: GrantFiled: June 2, 1981Date of Patent: August 2, 1983Assignee: Fuji Photo Film Co., Ltd.Inventors: Kimitaka Kameoka, Yoshimi Ishigami
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Patent number: 4374924Abstract: A silver halide photographic light-sensitive material having at least one antistatic layer, said antistatic layer containing a dispersion of polymer represented by the following formula (I): ##STR1## wherein A represents a monomer unit formed from a copolymerizable monomer having at least two ethylenically unsaturated groups, B represents a monomer unit formed from a copolymerizable and monoethylenically unsaturated monomer, R.sub.1 represents a hydrogen atom or a lower alkyl group having 1 to 6 carbon atoms, Q represents a divalent group containing 1 to 12 carbon atoms, R.sub.2, R.sub.3 and R.sub.4 may be the same or different and each represents an alkyl group containing 1 to 20 carbon atoms, or an aralkyl group containing 7 to 20 carbon atoms, or R.sub.2, R.sub.3 and R.sub.4 may combine to form a ring together with the nitrogen atom, X.sup..crclbar. represents an anion, x is about 0.25 to 10 mol%, y is about 0 to 90 mol%, and z is about 10 to 99 mol%.Type: GrantFiled: February 24, 1982Date of Patent: February 22, 1983Assignee: Fuji Photo Film Co., Ltd.Inventors: Shigeki Yokoyama, Shinzo Kishimoto, Itsuki Toriya, Taku Nakamura
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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: 4369245Abstract: A photographic element for tanning development which comprises a support, a layer of silver halide emulsion in non-hardened gelatin including a tanning developer dispersed therein, and over said emulsion layer, a layer of non-hardened gelatin comprising at least one colored pigment dispersed therein, characterized by the silver in said silver halide emulsion layer being present in a quantity of less than 0.6 g/m.sup.2 with a silver/gelatin ratio of less than 0.4. A method for obtaining a colored relief image in such an element is shown.Type: GrantFiled: September 8, 1981Date of Patent: January 18, 1983Assignee: Minnesota Mining and Manufacturing CompanyInventors: Marco Beruto, Piero Ramello
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Patent number: 4369248Abstract: A photographic recording material contains in a silver halide layer an emulsion mixture of at least one light sensitive silver halide and a comparatively non-light sensitive silver salt and in a second layer, which is in waterpermeable arrangement, an antifogging agent or a precursor compound thereof.Type: GrantFiled: May 20, 1981Date of Patent: January 18, 1983Assignee: Agfa-Gevaert AktiengesellschaftInventors: Erwin Ranz, Heinz-Dieter Schutz, Joachim W. Lohmann
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Patent number: 4367284Abstract: It is generally undesirable to have surfaces on photographic elements which are highly reflective and therefore reduce the attractiveness of the image. One of the traditional means of correcting this reflectance is to coat the developed film or print with an anti-reflective coating or to place a glass cover over the imaged photographic element where the glass itself has an anti-reflective surface.According to the present invention, an anti-reflective surface may be provided within the photographic element itself by including within a top coat gelatin layer a combination of a first water-soluble soft matting agent incompatible with gelatin and a second water-insoluble soft matting agent.Type: GrantFiled: May 26, 1981Date of Patent: January 4, 1983Assignee: Minnesota Mining and Manufacturing CompanyInventors: Luigi Cellone, Angelo Vallarino, Roberto Leoncavallo
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Patent number: 4363864Abstract: An article comprising a substrate having coated on one surface thereof a first layer comprising a colloidal material capable of being tanned when contacted with oxidized silver halide developers, and overyling said first layer a second layer comprising a photographic silver halide emulsion, said emulsion containing substituted gelatin therein, said substituted gelatin being substantially resistant to tanning when contacted by said oxidized silver halide developers.Type: GrantFiled: May 10, 1978Date of Patent: December 14, 1982Assignee: Minnesota Mining and Manufacturing CompanyInventor: Robert L. Rutledge
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Patent number: 4358533Abstract: A silver halide photographic material having a hydrophilic colloid layer comprising fine polymer particles loaded with a hydrophobic photographic addenda provided on a support wherein the polymer has repeating units formed from a nonionic hydrophobic monomer. The nonionic hydrophobic monomer has the formula ##STR1## R.sub.1 and R.sub.2 individually are a hydrogen atom or methyl group, R.sub.3 is a hydrogen atom, an alkyl or aryl group, and m and n are integers of from 2 to 100 individually.Type: GrantFiled: March 11, 1981Date of Patent: November 9, 1982Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Kouji Tokitou, Tsuneo Wada
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Patent number: 4357418Abstract: It is generally undesirable to have surfaces on photographic elements which are highly reflective and therefore reduce the attractiveness of the image. One of the traditional means of correcting this reflectance is to coat the developed film or print with an anti-reflective coating or to place a glass cover over the imaged photographic element where the glass itself has an anti-reflective surface.According to the present invention, an anti-reflective surface may be provided within the photographic element itself by including within a top coat gelatin layer a water-soluble dextran incompatible with gelatin.Type: GrantFiled: May 26, 1981Date of Patent: November 2, 1982Assignee: Minnesota Mining and Manufacturing CompanyInventor: Luigi Cellone
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Patent number: 4346154Abstract: A stain retarding concentration of a phosphine antistain agent or phosphine antistain agent precursor in the undercoat layer of a photographic silver halide element comprising a support having thereon (a) a photographic silver halide gelatino emulsion layer, and (b) an undercoat layer between the emulsion layer and the support, provides reduced stain in the element upon exposure and processing. The photographic element preferably comprises a silver halide developing agent. The photographic element, after exposure, is preferably processed by means of an aqueous alkaline activator bath and then an aqueous thiosulfate stabilizer bath.Type: GrantFiled: June 22, 1981Date of Patent: August 24, 1982Assignee: Eastman Kodak CompanyInventors: Donald F. McLaen, Arthur H. Herz
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Patent number: 4340665Abstract: Spots due to iron contamination in developed silver halide films are reduced in number by incorporating therein a phosphate and trisodium hydroxyethylethylenediaminetriacetate.Type: GrantFiled: March 4, 1981Date of Patent: July 20, 1982Assignee: E. I. Du Pont de Nemours and CompanyInventor: Lloyd G. Sidwell
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Patent number: 4336326Abstract: New optical brightening agents and photographic materials which contain in at least one layer these brightening agents are provided. The compounds have the general formula ##STR1## wherein R.sub.1 and R.sub.3 are hydrogen or methyl, R.sub.2 and R.sub.4 are alkyl R.sub.5 is hydrogen, alkyl, aryl, aralkyl, X is --NH--, --O-- or --S--, L.sub.1 and L.sub.2 are alkylene oxide chains and M.sup..sym. is a hydrogen or an alkali metal cation.These brightening agents enhance the brightness in the white areas of photographic print materials.Type: GrantFiled: April 6, 1981Date of Patent: June 22, 1982Assignee: Ciba-Geigy AGInventor: Graham Evans
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Patent number: 4323643Abstract: A silver halide photographic light-sensitive material is described, comprising at least one silver halide photographic emulsion layer, wherein at least one layer contains a compound represented by formula (I) ##STR1## wherein R.sup.1 and R.sup.2 each represents hydrogen, an aliphatic group, an aromatic group, or a heterocyclic group;R.sup.3 represents hydrogen or an aliphatic group, andX represents a divalent aromatic group.The light-sensitive material provides high-contrast negative images and good dot image quality.Type: GrantFiled: November 6, 1980Date of Patent: April 6, 1982Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroyuki Mifune, Shigeo Hirano, Yoshitaka Akimura
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Patent number: 4321102Abstract: A method for making epoxy reinforced by gelatin by forming gelatin-epoxy sheets. Initially the gelatin is carried on a non-bonding support and receives the desired epoxy coating which bonds to the gelatin. Next the coating is cured and the support is peeled from the gelatin leaving a gelatin reinforced epoxy sheet stock material. The opposite side of the gelatin may be coated in the same manner.Type: GrantFiled: May 4, 1981Date of Patent: March 23, 1982Assignee: Drexler Technology CorporationInventors: Jerome Drexler, Carl R. Betz
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Patent number: 4312938Abstract: A broadband laser recording and data storage medium for direct read after writing, formed from a photosensitive silver-halide emulsion in four steps. First, a non-saturating actinic radiation exposure is used to create latent images. A normal photographic development is used to produce a medium of gray neutral density. The surface of the remaining silver halide is fogged in a water or alcohol based solution to create a very thin layer of silver precipitating nuclei on the surface. Finally, a single-step, negative silver diffusion transfer process is used to dissolve the unexposed and undeveloped silver halide, forming silver ion complexes.Type: GrantFiled: October 17, 1980Date of Patent: January 26, 1982Assignee: Drexler Technology CorporationInventors: Jerome Drexler, Eric W. Bouldin
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Patent number: 4308344Abstract: A process for producing a photographic light-sensitive material comprising providing a first light-sensitive photographic emulsion layer on one side of a support having a surface resistivity greater than 10.sup.14 .OMEGA. and a thickness of not more than 230.mu. and providing a light-sensitive photographic emulsion layer or a gelatin-containing back layer on the opposite side of the support wherein between the time the first emulsion layer is coated and the time the opposite surface of the support is coated, (i) the opposite surface of the support is prevented from coming into contact with anything except rolls having a diameter larger than about 50 mm, and (ii) the water/gelatin weight ratio in the photographic emulsion layer(s) coated on the first surface of the support prior to coating the second surface is not less than 1. The process is particularly applicable to production of X-ray films.Type: GrantFiled: March 20, 1980Date of Patent: December 29, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Takenori Omichi, Takeshi Konno, Sumitaka Tatsuta
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Patent number: 4302526Abstract: The negative materials of this invention for silver complex diffusion transfer process provide silver images high in density and improved in stability on image receiving materials. Said negative materials have the following characteristics:(a) The negative materials have silver halide emulsion layer in which the weight ratio of hydrophilic colloid to silver halide in terms of silver nitrate is 2 or less and(b) furthermore, the negative materials have an undercoat layer of hydrophilic colloid on a support and the silver halide emulsion layer of (a) on said undercoat layer, the weight ratio of the hydrophilic colloid of said undercoat layer to that of said silver halide emulsion layer being at least 2.Type: GrantFiled: November 6, 1979Date of Patent: November 24, 1981Assignee: Mitsubishi Paper Mills, Ltd.Inventors: Isao Kohmura, Tamotsu Iwata, Shozi Oka
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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: 4288531Abstract: An imaging element which relies upon an aromatic dialdehyde to produce a dye provides improved maximum neutral densities when certain polymers are superimposed over the element. Such polymers seal the element to reduce loss of the dialdehyde during development. An imaging method is also disclosed.Type: GrantFiled: September 26, 1979Date of Patent: September 8, 1981Assignee: Eastman Kodak CompanyInventors: Anthony Adin, Richard C. Sutton, Joseph A. Verdone
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Patent number: 4288526Abstract: A light-sensitive printing plate with a coating layer with an uneven pattern removable during development provided on the surface thereof, which can be brought into intimate contact with an original image in a short period of time by vacuum adhesion. The light-sensitive printing plate is produced by taking up a coating solution from a coating solution pan by a gravure roll, scraping away excess coating solution adhering to the gravure roll by a doctor blade, transferring the coating solution still retained on the gravure roll to a coating roll made of rubber with a fine uneven pattern on the surface thereof which is turning in the same direction and at the same speed as the gravure roll, and transferring the coating solution thus transferred to the coating roll to a support running at the same speed and in the same direction as the coating roll.Type: GrantFiled: January 9, 1980Date of Patent: September 8, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Kazutaka Oda, Yoshio Okishi
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Patent number: 4284716Abstract: A broadband laser recording and data storage medium for direct read after writing, formed from a photosensitive silver-halide emulsion in four steps. First, a non-saturating actinic radiation exposure is used to create latent images. A normal photographic development is used to produce a medium of gray neutral density. The surface of the remaining silver halide is fogged in a water or alcohol based solution to create a very thin layer of silver precipitating nuclei on the surface. Finally, a single-step, negative silver diffusion transfer process is used to dissolve the unexposed and undeveloped silver halide, forming silver ion complexes.Type: GrantFiled: April 14, 1980Date of Patent: August 18, 1981Assignee: Drexler Technology CorporationInventors: Jerome Drexler, Eric W. Bouldin
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Patent number: 4279989Abstract: Epoxy is reinforced by gelatin to form gelatin-epoxy sheets. Initially the gelatin is carried on a non-bonding substrate for support and receives the desired epoxy coating which bonds to the gelatin. Next the coating is cured and the substrate is peeled from the gelatin leaving a gelatin reinforced epoxy sheet stock material. The opposite side of the gelatin may be coated in the same manner.Type: GrantFiled: November 30, 1979Date of Patent: July 21, 1981Assignee: Drexler Technology CorporationInventors: Jerome Drexler, Carl R. Betz
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Patent number: 4268627Abstract: A photographic light-sensitive material is described comprising at least one hydrophilic colloidal layer containing a hardener and further containing as an acid-captor at least one compound represented by formula (I) or (II): ##STR1## wherein R.sub.1 represents hydrogen, a lower alkyl group containing 5 or less carbon atoms, an alkoxy group containing 5 or less carbon atoms, or a halogen atom, and R.sub.2 and R.sub.3 each independently represents hydrogen, an alkyl group containing 10 or less carbon atoms, an aryl group containing from 6 to 12 carbon atoms, or an alkoxycarbonyl group containing 5 or less carbon atoms.Type: GrantFiled: June 13, 1980Date of Patent: May 19, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Hidefumi Sera, Katuzi Kitatani, Masasi Ogawa, Kunio Ishigaki, Hisashi Shiraishi
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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: 4267250Abstract: In a color diffusion transfer photographic element containing at least one dye-releasing redox compound-containing layer associated with a silver halide photographic emulsion and capable of releasing a diffusible dye as a result of a redox reaction with the oxidation product of a developing agent produced by the development of silver halide with an alkaline processing solution, and at least one layer containing an antistain agent, the improvement which comprises said dye-releasing redox compound-containing layer associated with said silver halide photographic emulsion being spaced from the adjacent interlayer containing said antistain agent by a spacer layer essentially containing a hydrophilic colloid or by a silver halide emulsion layer having substantially the same spectral sensitivity as that of the associated silver halide emulsion.Type: GrantFiled: October 11, 1979Date of Patent: May 12, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiki Sakanoue, Kokichi Waki, Motohiko Tsubota, Osamu Takahashi, Asao Nakatsuka
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Patent number: 4266010Abstract: A silver halide photographic light-sensitive material containing at least one photographic layer containing acid-processed gelatin and a matting agent.Type: GrantFiled: March 30, 1979Date of Patent: May 5, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Shigeru Nagatomo, Kiyotaka Hori
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Patent number: 4248963Abstract: In a process for preventing the contact spots formed by contact of the back coating of photographic material with the emulsion side an aqueous polymer dispersion obtained by polymerization of halogen-free compounds and polyvinyl alcohol or partially acetylated polyvinyl alcohol in the presence of an anionic emulsifier are added to the casting composition applied as outermost back coating and/or as uppermost layer.Type: GrantFiled: May 22, 1978Date of Patent: February 3, 1981Assignee: AGFA-Gevaert, A.G.Inventors: Gunter Kolb, Bernhard Morcher
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Patent number: 4247627Abstract: This invention is directed to photographic elements having hydrophilic colloid layers containing loaded particles of from 0.02 to 0.2 micron in average diameter consisting essentially of a loadable polymer, with greater than 2 percent by weight of the polymer being derived from monomers capable of forming water soluble homopolymers. A hydrophobic photographic dye, coupler, developing agent or ultraviolet absorbing compound is loaded into and distributed through the particles. The weight ratio of the hydrophobic photographic dye, coupler, developing agent or ultraviolet absorbing compound to the loadable polymer is from about 1:4 to 3:1.Type: GrantFiled: October 10, 1979Date of Patent: January 27, 1981Assignee: Eastman Kodak CompanyInventor: Tsang J. Chen
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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: 4241171Abstract: A process for making a photographic product in which a plurality of liquid layers are coated on a base, comprising the steps of coating as the first layer adjacent the base a carrier layer containing a photographic hardener and coating as the second layer adjacent the first layer an isolation layer. The product is completed by coating a plurality of conventional photographic compositions over the first two layers and drying.Type: GrantFiled: February 21, 1979Date of Patent: December 23, 1980Assignee: Polaroid CorporationInventors: Roger C. Clapp, Edward J. Choinski
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Patent number: 4235959Abstract: Hydrophilic coating compositions are made comprising a protective colloid and dispersed therein a matting agent. The matting agent is obtained by mixing in aqueous medium area, formaldehyde and an aqueous colloidal dispersion of silica. The mixture is buffered to keep the pH at 3.2 or lower. Urea and formaldehyde are polycondensed while vigorously stirring until particles comprising urea-formaldehyde resin and silica are formed of average particle size of 1-8 .mu.m. The rate of stirring is reduced and the pH is raised to 5 or higher to prevent afterpolycondensation and agglomeration of the polymer particles. A hydrophilic colloid is then dissolved in the reaction mixture.Photographic light-sensitive silver halide material incorporating a layer formed from the hydrophilic coating composition.Type: GrantFiled: February 2, 1979Date of Patent: November 25, 1980Inventors: Victor J. M. Thijs, deceased, Paul E. Huyghebaert, administrator, Nikolaas C. De Jaeger, Bernard H. Tavernier
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Patent number: 4232117Abstract: A silver halide photographic light-sensitive material having two or more hydrophilic colloid layers on at least one side of a support, wherein (i) a hydrophilic colloid layer positioned farther from the support contains gelatin, a matting agent having an average particle size of 1 to 5.mu. and colloidal silica and (ii) a hydrophilic colloid layer which is positioned nearer the support than the position of hydrophilic colloid layer (i) contains gelatin and a polymer latex.Type: GrantFiled: February 13, 1978Date of Patent: November 4, 1980Assignee: Fuji Photo Film Co., Ltd.Inventors: Takashi Naoi, Ikutard Horie
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Patent number: 4224403Abstract: A method for preventing the degradation of a hydrophilic colloid solution for a silver halide photographic light-sensitive material of which the viscosity has been or is to be increased using an anionic polymer containing an acid group, which comprises incorporating into the hydrophilic colloid solution at least one compound represented by the formula (I): ##STR1## wherein R.sub. represents a hydrogen atom or an alkyl group; and R.sub.2, R.sub.3 and R.sub.4, which may be the same or different, each represents a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group.Type: GrantFiled: August 3, 1978Date of Patent: September 23, 1980Assignee: Fuji Photo Film Co., Ltd.Inventors: Yuzo Toda, Keiichi Adachi, Shoji Ishiguro, Yasuhiro Nakayama
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Patent number: 4218533Abstract: In the production of a photographic material by applying a coating composition to a continuously moving support, cold-setting the coating and drying the coating, an additive in the coating composition (e.g., a hardening agent or an antistatic agent), either partly or completely, is atomized by ultrasonic vibration, and supplied to the coating formed on the continuously moving support. Alternatively, the atomized additive is first supplied to the surface of a continuously moving support, and before the coating is completely dried, the coating composition is applied thereto.Type: GrantFiled: June 3, 1977Date of Patent: August 19, 1980Assignee: Fuji Photo Film Co., Ltd.Inventors: Shuzo Fuchigami, Toshio Miyashiro
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Patent number: 4216289Abstract: A light-sensitive printing plate with a coating layer with an uneven pattern removable during development provided on the surface thereof, which can be brought into intimate contact with an original image in a short period of time by vacuum adhesion. The light-sensitive printing plate is produced by taking up a coating solution from a coating solution pan by a gravure roll, scraping away excess coating solution adhering to the gravure roll by a doctor blade, transferring the coating solution still retained on the gravure roll to a coating roll made of rubber with a fine uneven pattern on the surface thereof which is turning in the same direction and at the same speed as the gravure roll, and transferring the coating solution thus transferred to the coating roll to a support running at the same speed and in the same direction as the coating roll.Type: GrantFiled: February 16, 1978Date of Patent: August 5, 1980Assignee: Fuji Photo Film Co., Ltd.Inventors: Kazutaka Oda, Yoshio Okishi
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Patent number: 4190449Abstract: A photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer and an outermost layer thereof containing gelatin and colloidal silica prepared by adding potassium hydroxide to an aqueous dispersion of colloidal silica and a method of improving the antiadhesive property of a photographic light-sensitive material which comprises incorporating colloidal silica prepared by adding potassium hydroxide to an aqueous dispersion of colloidal silica into an outermost layer containing gelatin of a photographic light-sensitive material.Type: GrantFiled: March 24, 1978Date of Patent: February 26, 1980Assignee: Fuji Photo Film Co., Ltd.Inventors: Takashi Naoi, Ikutaro Horie
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Patent number: 4181529Abstract: A proteinaceous material such as gelatin is hardened by treatment with an aqueous solution of a partial hydrolysis product of cyanuric chloride that has been buffered with a water-soluble borate, e.g. sodium metaborate, potassium metaborate or ammonium metaborate.The proteinaceous material can be a proteinaceous coating such as a photographic silver halide emulsion layer, a backing layer, a protective layer, a filter layer or any other photographic auxiliary layer.Type: GrantFiled: May 9, 1978Date of Patent: January 1, 1980Assignee: AGFA-GEVAERT N.V.Inventors: Francis J. Sels, Hendrik E. Kokelenberg, George F. Van Veelen