Epoxide, I.e., Oxirane Patents (Class 430/624)
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Patent number: 7695898Abstract: Disclosed is a photothermographic material having an image-forming layer containing a silver salt of an organic acid, photosensitive silver halide grains and a reducing agent on a support, wherein ratio of scratch strength measured before heat development and scratch strength measured 30 minutes after the heat development is in the range of 1:1-1:3 for a surface of the image-forming layer side. The photothermographic material shows improved film strength after heat development.Type: GrantFiled: April 10, 2008Date of Patent: April 13, 2010Assignee: Fujifilm CorporationInventor: Makoto Ishihara
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Patent number: 7074551Abstract: The present invention relates to an imaging element comprising at least one imaging layer and a support wherein the support comprises at least one layer comprising a splayant and a layered material, wherein the layered material has an aspect ratio from 20:1 and 500:1 and wherein the layered material comprises less than 10% by weight of the layer. The present invention also relates to a method of making a dimensionally stable imaging element comprising providing a support wherein said support comprises at least one layer comprising a splayant and a layered material, wherein said layered material comprises an aspect ratio of from 20:1 to 500:1 and wherein said layered material comprises less than 10% by weight of said at least one layer; and applying at least one imaging layer.Type: GrantFiled: August 4, 2003Date of Patent: July 11, 2006Assignee: Eastman Kodak CompanyInventors: YuanQiao Rao, Robert J. Kress
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Patent number: 6015656Abstract: A tabular silica dispersion is disclosed, which is obtained by mixing a tabular silica, gelatin, a cyclodextrin and a compound capable of crosslinking gelatin. Silver halide photographic materials are also disclosed, in which the tabular silica dispersion is incorporated into a silver halide emulsion layer or a light-insensitive hydrophilic colloidal layer.Type: GrantFiled: July 16, 1999Date of Patent: January 18, 2000Assignee: Konica CorporationInventor: Ken Nagami
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Patent number: 6010842Abstract: A silver halide photographic light-sensitive material has at least one light-sensitive silver halide emulsion layer on a support, wherein a light-sensitive silver halide emulsion in the emulsion layer contains a compound represented by formula (I) below and a compound represented by formula (II) below. ##STR1## In formula (I), each of R.sub.1 to R.sub.3 represents a hydrogen atom, an alkyl group, or an aryl group. ##STR2## In formula (II), R represents a specific alkyl group, each of L.sub.1 and L.sub.2 represents a methine group, p.sub.1 represents 0 or 1, Z.sub.1 represents atoms required to form a 5- or 6-membered nitrogen-containing heterocyclic ring, M.sub.1 represents a charge-balancing counter ion, m.sub.1 represents a number from 0 to 10 required to neutralize electric charge of a molecule, and Q represents a methine group or a polymethine group substituted by a heterocyclic group or an aromatic group.Type: GrantFiled: August 29, 1997Date of Patent: January 4, 2000Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoichi Suga, Masato Taniguchi
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Patent number: 5766820Abstract: A silver halide photographic light sensitive material is disclosed which comprises a support and provided thereon, a hydrophilic colloid layer comprising at least one silver halide emulsion layer and at least one non-light sensitive layer, the hydrophilic colloid layer being hardened with at least one hardener selected from the group consisting of a carboxyl active hardener, a vinylsulfone type hardener, an epoxy type hardener and a triazine type hardener, wherein a silver halide emulsion layer closest to the support of the silver halide emulsion layers contains a dye in the form of dispersed solid particles or a non-light sensitive layer closest to the support of the non-light sensitive hydrophilic colloid layers contains a dye in the form of dispersed solid particles, and the thickness swell percentage of the photographic component layer is 10 to 100%.Type: GrantFiled: December 12, 1996Date of Patent: June 16, 1998Assignee: Konica CorporationInventors: Junichi Fukawa, Seiji Hidaka, Takeo Arai
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Patent number: 5254445Abstract: A method of manufacturing silver halide photographic light-sensitive material with little habitual curling is disclosed. The material, after being coated with a silver halide emulsion layer and antistatic layer on the polyester support, is rolled around a core with its emulsion side facing outside, and then heated at the temperature not less than 30.degree. C. After the heat-treatment, the material is cut and re-rolled on a commercial size core with its emulsion side facing inside.Type: GrantFiled: March 20, 1992Date of Patent: October 19, 1993Assignee: Konica CorporationInventors: Yasuhiko Takamuki, Takeshi Sampei
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Patent number: 5045441Abstract: A silver halide photographic light-sensitive material is disclosed, which is inhibited in forming pin-holes in a phgotomechanical processes. The light-sensitive material comprises a support on a surface of which an electric conductive layer is provided. The electric conductive layer comprises a polymer having an aromatic ring or a heterocyclic ring each having a sulfonic acid group or a salt bonding to the aromatic or heterocyclic ring directly or through a divalent group, and a latex. This layer has a swelling degree of from 0.2 percent to 300 percent.Type: GrantFiled: February 20, 1990Date of Patent: September 3, 1991Assignee: Konica CorporationInventors: Yasuhiko Takamuki, Takeshi Habu
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Patent number: 4960688Abstract: A silver halide color photographic material is described comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide color photographic material contains a water-soluble polymer comprising at least one repeating unit represented by formula (I) ##STR1## wherein A represents a vinyl repeating unit having a color coupler moiety which is capable of forming a dye upon coupling with an oxidation product of an aromatic primary amine developing agent;and at least one repeating unit selected from the group consisting of formulae (II-A), (II-B), (II-C), (II-D), (II-E), and (II-F): ##STR2## The water-soluble polymer is a photographic polymeric coupler incorporating a crosslinkable group with gelatin and the silver halide color photographic material containing the water-soluble coupler is excellent in layer strength and image sharpness.Type: GrantFiled: February 29, 1988Date of Patent: October 2, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Kei Sakanoue, Yoshio Ishii, Tsumoru Hirano
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Patent number: 4921785Abstract: A silver halide photographic material comprises a support having thereon at least one light-sensitive silver halide emulsion layer, at least one layer of said material comprising gelatin crosslinked with a crosslinking agent, said crosslinks being capable of being cleaved on reduction.Type: GrantFiled: April 29, 1988Date of Patent: May 1, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Koki Nakamura, Ichizo Toya
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Patent number: 4913998Abstract: Compositions and films are provided for the preparation of electrostatic printing masters. The composition binder permits use of aqueous silver halide photographic techniques to image the master for printing, and exhibits insulation properties needed for electrostatic printing under typical conditions of relative humidity.Type: GrantFiled: December 30, 1988Date of Patent: April 3, 1990Assignee: E. I. Du Pont de Nemours and CompanyInventors: Allan Cairncross, Catherine T. Chang