Filters Ultraviolet Radiation Patents (Class 430/512)
  • Patent number: 5009989
    Abstract: A silver halide photographic material which contains, on a support, a combination of at least one cyan dye-forming coupler represented by the following formula (I) and at least one compound selected from among those represented by the following formulae (II) and (III), whereby achieving enhancement of keeping quality of the developed cyan color dye: ##STR1## wherein R.sub.1 represents an aliphatic group, an aromatic group or a heterocyclic group; R.sub.2 representing an alkyl group containing from 2 to 15 carbon atoms; Z represents a hydrogen atom, or a group or an atom capable of splitting off upon coupling with a developing agent; L.sub.1 and L.sub.2 each represents a divalent to a tetravalent aliphatic group; R.sub.3 and R.sub.4 each represents an aliphatic group, an aromatic group, or a heterocyclic group; and n and m each represents an integer of from 2 to 4, and therein the n R.sub.3 's and m R.sub.4 's, respectively, may be the same or different, and when m represents 2, L.sub.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: April 23, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kozo Aoki, Osamu Takahashi
  • Patent number: 4992358
    Abstract: A color photographic light-sensitive material comprising a reflective support having thereon a plurality of silver halide emulsion layers of which the emulsion layer located farthest from said support has, on each of both the support side thereof and the uppermost side at least one nonlight-sensitive layer containing an effective amount of an ultraviolet absorbing agent, said ultraviolet absorbing agent being used in said nonlight-sensitive layer on the uppermost side of said emulsion layer being a 2-(2'-hydroxyphenyl)benzotriazole-type compound which is in the liquid form at normal room temperature.
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: February 12, 1991
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Masao Sasaki, Kaoru Onodera
  • Patent number: 4990435
    Abstract: A polymeric latex to load photographically useful compounds into photographic elements comprises, as a dispersed phase, fine particles of a hydrophobic polymer which, for at least 70% of its weight, comprises:(a) repeating units derived from an ethylenic monomer containing a sulfonic or sulfonate group which monomer is capable of forming hydrophilic homopolymers, said units comprising 0.5 to 1.5% by weight of said hydrophobic polymer,(b) repeating units derived from an N-3-oxo-alkyl-substituted acrylamide, said units comprising from 5 to 25% by weight of said hydrophobic polymer, and(c) repeating units derived from acrylic acid ester monomers having a TG lower than 0.degree. C., said units comprising at least 43.5% by weight of said hydrophobic polymer,the remaining polymer weight percentage, from zero to 30%, being formed by repeating units derived from inert monomers and/or cross-linking monomers.
    Type: Grant
    Filed: December 10, 1986
    Date of Patent: February 5, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Angelo Vallarino, Mauro Besio, Lorenzo Vittore
  • Patent number: 4990432
    Abstract: A silver halide photographic light-sensitive material comprising a reflective support having a transmission density of not more than 0.8, having thereon, a photographic component layer comprising a silver halide emulsion layer and a layer including at least one anti-halation layer formed closer to said support than said silver halide emulsion layer is disclosed. In the photographic material, degradation of image sharpness due to use of a reflective support having low transmission density is prevented.
    Type: Grant
    Filed: November 24, 1989
    Date of Patent: February 5, 1991
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Hajime Komatsu, Susumu Ohkawachi, Yasuo Tosaka, Bunzo Ueda, Keiichi Hoshimo
  • Patent number: 4977070
    Abstract: Support layers for photosensitive media comprise reflective sheeting which is transparentizable. The properties of the support layer enable it to act as an antihalation layer.
    Type: Grant
    Filed: May 20, 1986
    Date of Patent: December 11, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: John M. Winslow
  • Patent number: 4975360
    Abstract: A silver halide photographic light-sensitive material comprising a support provided thereon with photographic layers including at least one silver halide emulsion layer and at least one non-light-sensitive layer is disclosed. The silver halide emulsion layer comprises silver halide grains comprising not less than 80 mol % of silver chloride. At least one of the photographic layers contains an ultraviolet absorbing agent which is in the liquid state at ordinary temperature. And at least one of the photographic layers is hardened with a vinylsulfon hardner. The photographic material has a high developing rate and a high antipressure property, so it is suitable for a rapid processing.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: December 4, 1990
    Assignee: Konica Corporation
    Inventors: Masao Sasaki, Kaoru Onodera
  • Patent number: 4956263
    Abstract: A silver halide photographic material capable of providing very high contrast image and having improved safelight safety is described, which comprises a support having thereon at least one silver halide emulsion layer, and containing in the silver halide emulsion layer or another hydrophilic colloid layer (i) a compound represented by formula (I) ##STR1## wherein PWR represents a group capable of releasing ##STR2## upon being reduced; Time represents a group capable of releasing LA after being released from PWR, t is 0 or 1; and LA represents a group having an absorption maximum in the wavelength region longer than 310 nm, (ii) a hydrazine derivative, and (iii) at least one compound represented by formulae (IX) and (X) ##STR3## wherein R.sup.91, R.sup.92, R.sup.93, and R.sup.
    Type: Grant
    Filed: August 31, 1988
    Date of Patent: September 11, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kunio Ishigaki, Kazunobu Katoh, Nobuaki Inoue, Hisashi Okada, Toshinao Ukai, Morio Yagihara, Yoshihiro Takagi, Masakazu Yoneyama
  • Patent number: 4952484
    Abstract: 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: Grant
    Filed: February 21, 1989
    Date of Patent: August 28, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazunobu Katoh, Keiichi Adachi
  • Patent number: 4950577
    Abstract: Presensitized sheets for color proofing comprising a removable carrier sheet bearing a photosensitive medium sensitive to radiation within the wavelength band 325 to 700 nm and comprising photohardenable, photoadherent, photoinsolubilisable or photosolubilisable material, the sheet including a removable antihalation layer which is removed either when stripping the carrier sheet or during subsequent processing. The antihalation dyes may be positioned within a transparent carrier sheet, in a layer on the carrier sheet opposite to the photosensitive medium or in a layer positioned between the carrier sheet and light-sensitive medium.
    Type: Grant
    Filed: May 23, 1985
    Date of Patent: August 21, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Duncan M. A. Grieve, Ronald W. Burrows, John Souter
  • Patent number: 4950586
    Abstract: Solid particle dispersions of dyes according to the formula: ##STR1## are useful as filter dyes in photographic elements. In this formula, n is 0 or 1. R.sub.1 and R.sub.2 are each independently substituted or unsubstituted alkyl or substituted or unsubstituted aryl, or taken together with R.sub.6, R.sub.7, N and the atoms to which they are attached, represent the atoms necessary to complete a julolydyl ring.R.sub.3 is H, substituted or unsubstituted alkyl, or substituted or unsubstituted aryl.R.sub.4 and R.sub.5 each independently represents H, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, secondary or tertiary amino, CO.sub.2 H, or NHSO.sub.2 R.sub.8, with the proviso that at least one of R.sub.4 and R.sub.5 or a substituted on an aryl ring in R.sub.4 and R.sub.5 is CO.sub.2 H or NHSO.sub.2 R.sub.8. R.sub.8 is substituted or unsubstituted alkyl or substituted or unsubstituted aryl.R.sub.6 and R.sub.7 independently represents H, or R.sub.7 taken together with R.sub.2, or R.sub.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: August 21, 1990
    Assignee: Eastman Kodak Company
    Inventors: Donald R. Diehl, Ronda E. Factor
  • Patent number: 4948718
    Abstract: Solid particle dispersions of dyes according to the formula: ##STR1## are useful as filter dyes in photographic elements. In this formula, R.sub.1 and R.sub.2 are each independently substituted or unsubstituted alkyl or substituted or unsubstituted aryl, or together represent the atoms necessary to complete a substituted or unsubstituted 5- or 6-membered ring.R.sub.3 and R.sub.4 each independently represents H, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, CO.sub.2 H, or NHSO.sub.2 R.sub.6. R.sub.5 is H, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, carboxylate, or substituted or unsubstituted acyl, R.sub.6 and R.sub.7 are each independently substituted or unsubstituted alkyl or substituted or unsubstituted aryl, and n is 1 or 2. R.sub.8 is either substituted or unsubstituted alkyl, or is part of a double bond between the ring carbon atoms to which R.sub.1 and R.sub.2 are attached.
    Type: Grant
    Filed: June 27, 1989
    Date of Patent: August 14, 1990
    Assignee: Eastman Kodak Company
    Inventors: Ronda E. Factor, Donald R. Diehl
  • Patent number: 4948702
    Abstract: A photosensitive recording element possessing a photosensitive recording layer which is applied to a dimensionally stable base, if desired on top of one or more intermediate layers, and has good photochemical properties and a long shelf life contains special sulfo-containing azo or azoxy dyes for controlling the photochemical properties in the photosensitive recording layer and/or in any intermediate layer present. Dyes which are suitable for use according to the invention can be obtained, for example, by autocondensation of 5-nitro-o-toluenesulfonic acid.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: August 14, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenter Wallbillich, Peter Neumann, Guenter Hansen
  • Patent number: 4948717
    Abstract: Dyes having the structure ##STR1## A represents a substituted or unsubstituted nucleus selected from the group consisting of rhodanines, hydantoins, 2-thiohydantions, 4-thiohydantoins, 2,4-oxazolidindiones, 2-thio-2,4-oxazolidindiones, isoxazolinones, barbiturics, 2-thiobarbiturics, and indandiones, said nucleus having a carboxyphenyl substituent or sulfonamidophenyl substituent,R represents hydrogen, alkyl of 1 to 4 carbon atoms, or benzyl,R.sup.1 and R.sup.2 each independently represents alkyl or aryl, or taken together with R.sup.5, R.sup.6, N, and the carbon atoms to which they are attached represent the atoms needed to complete a julolydyl ring,R.sup.3 represents H, alkyl, or aryl,R.sup.5 and R.sup.6 each independently represents H, or R.sup.5 taken together with R.sup.1, or R.sup.6 taken together with R.sup.2, each may represent the atoms necessary to complete a carbocyclic ring, andm is 0 or 1are disclosed. The dyes are useful as filter dyes in photographic filter layers.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: August 14, 1990
    Assignee: Eastman Kodak Company
    Inventors: Donald R. Diehl, Ronda E. Factor
  • Patent number: 4946768
    Abstract: 3-Aminoallylidenemalononitrile compounds corresponding to the formula: ##STR1## wherein R.sub.1 is a short alkyl chain having 1 to 3 carbon atoms and R is a substituted or unsubstituted long alkyl chain greater than 10 carbon atoms, are useful in photography for absorbing ultraviolet radiations in the range from 360 to 400 nm, with no undesired absorption near 420 nm, when introduced in a photographic gelatin layer.
    Type: Grant
    Filed: July 2, 1986
    Date of Patent: August 7, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Angelo Vallarino
  • Patent number: 4943519
    Abstract: A photographic recording material contains a stabilizer in polymeric form corresponding to the following formula I ##STR1## wherein the substituents have the meanings stated in the description.
    Type: Grant
    Filed: January 7, 1986
    Date of Patent: July 24, 1990
    Assignee: AGFA-Gevaert Aktiengesellschaft
    Inventors: Gunter Helling, Johannes Sobel, Hans Langen
  • Patent number: 4942114
    Abstract: A silver halide photographic material having at least one silver halide emulsion layer on a support, comprising a compound of formula (I):PWR--(Time).sub.t --FWA (I)in which PWR represents a group capable of releasing (Time).sub.t --FWA upon reduction; FWA represents a group which functions as a brightening agent; Time represents a group capable of releasing FWA through a reaction which follows the release of (Time).sub.t --FWA from PWR; and t represents an integer of 0 or 1.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: July 17, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keisuke Shiba, Keizo Koya
  • Patent number: 4933271
    Abstract: Tetrahydrothiopyran compound of the formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, X and n are as defined in claim 1, are effective stabilizers for dyes and dye couplers in photographic layers. In particular, they provide protection from damage by light. They are preferably used in combination with a phenolic antioxidant.
    Type: Grant
    Filed: September 29, 1988
    Date of Patent: June 12, 1990
    Assignee: Ciba-Geigy AG
    Inventors: Jean Rody, David G. Leppard
  • Patent number: 4931382
    Abstract: A silver halide color photographic light-sensitive material containing a combination of a pyrazolo-azole magenta coupler and a specific dye image stabilizing agent is disclosed. The stabilizing agent is effective to improve fastness of a dye image formed by the coupler to light, heat and moisture.
    Type: Grant
    Filed: September 12, 1989
    Date of Patent: June 5, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Toshio Kawagishi, Kiyoshi Nakazyo, Nobuo Seto, Sadao Kamei
  • Patent number: 4925782
    Abstract: 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: Grant
    Filed: February 13, 1989
    Date of Patent: May 15, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masahiro Okada, Toshinao Ukai, Seiji Suzuki, Keiichi Adachi, Toshiyuki Watanabe, Kunio Ishigaki
  • Patent number: 4923788
    Abstract: Photographic elements comprising filter dyes of the formula: ##STR1## R, R', L, L', L", X, and n are as defined herein are disclosed.
    Type: Grant
    Filed: February 9, 1989
    Date of Patent: May 8, 1990
    Assignee: Eastman Kodak Company
    Inventors: Leslie Shuttleworth, Paul B. Merkel, Glenn M. Brown
  • Patent number: 4912012
    Abstract: A photosensitive recording medium having a multiplicity of microcapsules formed on a substrate, and a developer material, each microcapsule having a photosensitive resin and a chromogenic material which reacts with the developer layer to form a colored image spot. The microcapsules comprising a plurality of microcapsule groups which are sensitive to radiations having different wavelength bands, or which are sensitive to different intensities of the radiation. An image recording system is provided with an illuminating device for generating radiations of different wavelengths falling within the wavelength bands of the microcapsule groups, or a radiation of variable intensity. The recording system has a selector for selecting at least one of the radiations of the different wavelengths, or one of the intensity levels of the radiation, in order to adjust the contrast of the images formed on the medium, with respect to non-image areas on the medium.
    Type: Grant
    Filed: September 1, 1988
    Date of Patent: March 27, 1990
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Naoyuki Hatta, Satoshi Furukawa
  • Patent number: 4904575
    Abstract: A silver halide color photographic material comprising a support having coated thereon at least one silver halide emulsion layer, the silver halide color photographic material containing a photographic cyan dye forming coupler represented by the following general formula (I): ##STR1## wherein R.sub.1 represents an aliphatic group, an aromatic group, heterocyclic group or a substituted amino group; R.sub.2 and R.sub.3, which may be the same or different, each represents an aliphatic group, an aromatic group or a heterocyclic group, or R.sub.2 and R.sub.3 may combine with each other to form a ring; and X represents a group capable of beiing released upon an oxidative coupling with a developing agent (including a hydrogen atom).
    Type: Grant
    Filed: July 8, 1988
    Date of Patent: February 27, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Michio Ono, Minoru Sakai, Kozo Aoki
  • Patent number: 4904578
    Abstract: This invention provides a light absorbing dye for silver halide photographic light-sensitive material which is represented by the following formula [I] or [II]: ##STR1## wherein R.sub.1 and R.sub.2 which may be identical or different each represents a substituted or unsubstituted alkyl group and may link to each other to form a ring, R.sub.3 represents an alkyl group substituted with at least one sulfo group or an aryl group substituted with at least one sulfo group, R.sub.4 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a carboxy group or an alkoxycarbonyl group, and n represents an integer of 1-4; ##STR2## wherein R.sub.1 represents an alkyl group or an aryl group, R.sub.2 represents an aryl group substituted with sulfo group and R.sub.3 represents an alkyl group.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: February 27, 1990
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Akira Tanaka, Koichi Sumioka
  • Patent number: 4900653
    Abstract: Dyes according to the formula: ##STR1## are useful as filter dyes in photographic elements. In this formula, n is 1 or 2. R.sub.1 and R.sub.2 are each independently substituted or unsubstituted alkyl or substituted or unbsubstituted aryl, or together represent the atoms necessary to complete a substituted or unsubstituted 5- or 6-membered ring. Also, if R.sub.7 is substituted or unsubstituted alkyl, R.sub.1 is H.R.sub.3 is substituted or unsubstituted alkyl or aryl. R.sub.4 and R.sub.5 each independently represents H, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, secondary or tertiary amino, CO.sub.2 H, or NHSO.sub.2 R.sub.6, with the proviso that at least one of R.sub.4, R.sub.5, or a substituent on an aryl ring in R.sub.3, on an aryl ring in R.sub.4 or R.sub.5, on an aryl ring in R.sub.1 or R.sub.2, or on an aryl ring formed by R.sub.1 and R.sub.2 is CO.sub.2 H or NHSO.sub.2 R.sub.6. R.sub.6 is substituted or unsubstituted alkyl or substituted or unsubstituted aryl. R.sub.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: February 13, 1990
    Assignee: Eastman Kodak Company
    Inventors: Ronda E. Factor, Donald R. Diehl
  • Patent number: 4894313
    Abstract: Photosensitive recording elements which possess a photosensitive recording layer which is applied to a dimensionally stable base, if necessary via one or more intermediate layers, and have good photochemical properties and a long shelf life contain a compound of the general formula (I) ##STR1## where M is a hydrogen atom or proton, an alkali metal cation, the ammonium cation or an amine cation and R.sup.1 and R.sup.2 are identical or different and are each a substituted s-triazine ring, in the photosensitive recording layer and/or any intermediate layer present, in order to control the photochemical properties.
    Type: Grant
    Filed: May 12, 1987
    Date of Patent: January 16, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Neumann, Guenter Wallbillich
  • Patent number: 4892806
    Abstract: The invention provides water soluble surface active compounds having the formula ##STR1## wherein each of R.sup.1 and R.sup.2 independently is hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, or substituted or unsubstituted aryl, provided that not both R.sup.1 and R.sup.2 are hydrogen,and each of x and y independently is an integer from 3 to 6.In a preferred embodiment where discrete compounds are required, R.sup.1 and R.sup.2 are identical and x and y are identical.Particularly preferred compounds are those wherein each of R.sup.1 and R.sup.2 is an alkyl group having from 5 to 8 carbon atoms, more preferably from 6 to 7 carbon atoms, and each of x and y is an integer from 3 to 6.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: January 9, 1990
    Assignee: Eastman Kodak Company
    Inventors: Catherine B. A. Briggs, Alan R. Pitt
  • Patent number: 4891304
    Abstract: A silver halide photographic material comprising a support having provided thereon at least one silver halide emulsion layer containing a compound represented by formula (I): ##STR1## wherein EAG represents an aromatic group bonding to N.sub.A and capable of accepting an electron;N.sub.A and N.sub.B each represents a nitrogen atom;R.sup.1 represents a lone pair, a .pi.-bond, a .sigma.-bond, or a substituent other than a hyudrogen atom;n represents 2 or 3;m represents 0 when n represents 2, or m represents 1 and N.sub.B has a positive charge when n represents 3;X.sup..crclbar. represents an anion;the groups or bonds represented by R.sup.1 may be combined with each other or may be combined with EAG to form a ring;R.sup.2 represents R.sup.3 --CO--, R.sup.3 --SO.sub.2 --, R.sup.3 --CO--N.dbd.CH--, or R.sup.3 --SO.sub.2 --N.dbd.CH--, wherein R.sup.3 represents an alkyl group, an aryl group, or a heterocyclic group;the group represented by R.sup.2 may be combined with at least one of R.sup.
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: January 2, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Koki Nakamura
  • Patent number: 4879204
    Abstract: 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: Grant
    Filed: August 16, 1988
    Date of Patent: November 7, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kunio Ishigaki, Toshiro Takahashi, Yuji Mihara, Keiichi Adachi, Shigeru Ohno, Masahiro Okada, Naomi Saeki
  • Patent number: 4877720
    Abstract: A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer, at least one layer of the silver halide photographic material comprising at least one compound represented by formula (I):PWR--Time--.sub.t --POL (I)wherein PWR represents a group capable of releasing (Time--.sub.t POL upon reduction; Time represents a divalent organic group capable of releasing POL via a subsequent reaction after (Time--.sub.t POL is released from PWR; t is 0 or 1; and POL represents a polymer group.The compound represented by formula (I) is a useful functional polymer whose properties are drastically changed upon reduction and reveal photographically useful function.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: October 31, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kozo Sato, Shigeru Ohno, Sumito Yamada
  • Patent number: 4877721
    Abstract: A methine oxonol dye having a bis-(2-pyrazolin-5-one nucleus) substituted with(a) acyl groups in the 3 and 3' position;(b) aryl groups in the 1 and 1' position; and(c) bearing from 4 to 6 acidic substituents, each of which are capable of forming a monovalent anion provided that at least two of such substituents are other than carboxyl, is disclosed for use as filter dyes in photographic elements.
    Type: Grant
    Filed: August 23, 1988
    Date of Patent: October 31, 1989
    Assignee: Eastman Kodak Company
    Inventors: Donald R. Diehl, Ralph C. Reed
  • Patent number: 4876181
    Abstract: A dye useful for absorbing infrared radiation in photographic elements, having the structure: ##STR1## is disclosed. In this formula R.sub.1 and R.sub.2 each independently represents sulfoalkyl, carboxyalkyl, or sulfatoalkyl of from 3 to 6 carbon atoms, having at least 3 carbon atoms in the alkyl chain between the nitrogen atom of each Z ring and the sulfo or sulfato group, and at least 2 carbon atoms in the alkyl chain between the nitrogen atom of each Z ring and the carboxy group.R.sub.3 and R.sub.5 are each hydrogen or together represent the atoms necessary to complete 5- or 6-membered carbocyclic ring, and R.sub.4 represents hydrogen, alkyl of 1 to 4 carbon atoms, aryl, cyano, halogen, or ##STR2## where R.sub.6 and R.sub.7 each independently represents alkyl of from 1 to 6 carbon atoms or aryl, or together represent the non-metallic atoms necessary to form a 5- or 6-membered ring.X.sym. represents a cation.Z.sub.1 and Z.sub.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: October 24, 1989
    Assignee: Eastman Kodak Company
    Inventors: Gary S. Proehl, Anthony D. Gingello, David J. Collett, Richard L. Parton, David A. Stegman, Anthony Adin
  • Patent number: 4871654
    Abstract: Photographic silver halide emulsion element for dye image production comprising a support carrying at least one alkali-permeable silver halide hydrophilic colloid emulsion layer incorporating in operative association therewith a dye-releasing compound capable of releasing a diffusible dye moiety from a carrier moiety by a redox reaction, said compound corresponding to the general formula: ##STR1## wherein CAR is an organic carrier moiety capable of undergoing a redox reaction, L is a group cleavable or releasable from the carrier moiety by a redox reaction taking place in alkaline condiitons as a function of the development of a silver halide emulsion layer incorporating such compound, G is a bridging group, each of L.sup.1 and L.sup.2 is a linking member, PUG.sup.1 is a dye (precursor) group, PUG.sup.2 is a dye (precursor) group, an UV-absorber group, or a singlet oxygen scavenger group.
    Type: Grant
    Filed: April 11, 1988
    Date of Patent: October 3, 1989
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Luc J. Vanmaele, Christian C. Van de Sande
  • Patent number: 4871656
    Abstract: A dye useful for absorbing infrared radiation in photographic elements, having the structure: ##STR1## is disclosed. In this formula, R.sub.1 and R.sub.2 each independently represents sulfoalkyl, carboxyalkyl, or sulfatoalkyl, from 2 to 4 carbon atoms, having 2 carbon atoms in the alkyl chain linking the nitrogen atom of each Z ring and the sulfo or sulfato group, and 1 carbon atom in the alkyl chain linking the nitrogen atom of each Z ring and the carboxy group.R.sub.3 and R.sub.5 are each hydrogen or together represent the atoms necessary to complete a 5- or 6-membered carbocyclic ring, and R.sub.4 represents hydrogen, alkyl of 1 to 4 carbon atoms, halogen, cyano, or ##STR2## where R.sub.6 and R.sub.7 each independently represents alkyl of from 1 to 6 carbon atoms or aryl or together represent the non-metallic atoms necessary to form a 5- or 6-membered heterocyclic ring.X.sup..sym. represents a cation.Z.sub.1 and Z.sub.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: October 3, 1989
    Assignee: Eastman Kodak Company
    Inventors: Richard L. Parton, ANthony D. Gingello, David J. Collett, David A. Stegman, ANthony Adin
  • Patent number: 4865957
    Abstract: A silver halide photographic material is disclosed, comprising a reflective support having provided thereon a silver halide emulsion layer containing at least one 2,5-diacylaminophenol cyan coupler, a silver halide emulsion layer containing a magenta coupler, and a silver halide emulsion layer containing a yellow coupler, wherein said silver halide emulsion layer containing a cyan coupler and/or a photographic layer that is farther from the support than the cyan coupler-containing layer contains at least one of 2-(2'-hydroxyphenyl)benzotriazole ultraviolet absorbents and at least one of benzophenone ultraviolet absorbents. By the combined use of the 2-(2'-hydroxyphenyl)benzotriazole ultraviolet absorbents and the benzophenone ultraviolet absorbents, light-fastness of a cyan image is markedly improved, to provide a color image having a satisfactory color balance.
    Type: Grant
    Filed: October 15, 1986
    Date of Patent: September 12, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Minoru Sakai, Keiichi Adachi
  • Patent number: 4865963
    Abstract: A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, said silver halide emulsion layer containing a pyrazoloazole series magenta coupler represented by general formula [I] ##STR1## wherein, R.sup.1 and R.sup.2 each represents a hydrogen atom or a substituent; and X represents a hydrogen atom or a releasing group which is released at the reaction with the oxidation product of an aromatic primary amine developing agent; at least one of said R.sup.1 and R.sup.2 is an alkyl group having a secondary or tertiary carbon atom directly bonded to the skeleton, at least one of said R.sub.1 and R.sub.2 is a sulfonamidoalkyl group or a sulfamoylalkyl group; and the magenta coupler may form a dimer or more polymer at the position of said R.sup.1, R.sup.2 or X.By the combined use of high boiling point organic solvent and ultraviolet absorbent, light fastness and coloring property are markedly improved.
    Type: Grant
    Filed: September 30, 1986
    Date of Patent: September 12, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Furutachi, Tadahisa Sato, Seiki Sakanoue, Akio Mitsui, Minoru Sakai, Masakazu Morigaki, Hidetoshi Kobayashi, Nobuo Sakai, Kiyoshi Nakazyo, Takeshi Hirose, Toshio Kawagishi
  • Patent number: 4857440
    Abstract: Photographic compound (A) capable of releasing a photographically useful group by means of intramolecular nucleophilic displacement exhibits increased resistance to hydrolysis when the compound contains in a coupling position a coupling-off group represented by the formula: ##STR1## wherein Q, R.sub.q, R.sub.1, R.sub.2, R.sub.3, n and PUG are as defined in the application. Such a compound (A) is useful in a photographic silver halide material and process.
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: August 15, 1989
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Michael J. Carmody, John M. Buchanan
  • Patent number: 4857444
    Abstract: A silver halide color photographic material is disclosed, comprising a support having provided thereon a red-sensitive layer, a green-sensitive layer, and a blue-sensitive layer, in which at least one of couplers represented by the formulae (I) and/or (II), at least one of couplers represented by the following formula (III), and at least one of couplers represented by the following formula (IV) are respectively incorporated in the light-sensitive layers different from each other in color sensitivity: ##STR1## wherein: R.sub.1, R.sub.2, R.sub.4 each represents a substituted or unsubstituted aliphatic, aromatic or heterocyclic group;R.sub.3, R.sub.5, and R.sub.6 each represents a hydrogen atom, a halogen atom, an aliphatic group, an aromatic group, or an acylimino group or, when taken together, R.sub.3 and R.sub.2 represent non-metallic atoms necessary for forming a nitrogen-containing 5- or 6-membered ring;R.sub.7 represents an alkoxy group, an aryloxy group, or a heterocyclic oxy group;R.sub.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: August 15, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takeshi Hirose, Tadashi Ogawa, Nobuo Furutachi
  • Patent number: 4857446
    Abstract: Dyes having structure ##STR1## A represents a substituted or unsubstituted nucleus having a carboxyphenyl or sulfonamidophenyl substituent selected from the group consisting of 2-pryazolin-5-ones free of any substituent bonded thereto through a carboxyl group, rhodanines, hydantoins, 2-thiohydantoins, 4-thiohydantoins, 2,4-oxazolidindiones, 2-thio-2,4-oxazolidindiones, isoxazolinones, barbiturics, 2-thiobarbiturics, and indandiones,R represent hydrogen, substituted or unsubstituted alkyl of 1 to 4 carbon atoms, or benzyl,R.sup.1 and R.sup.2 each independently represents substituted or unsubstituted alkyl or aryl, or taken together with R.sup.5, R.sup.6, N and the carbon atoms to which they are attached, represent the atoms needed to complete a julolydyl ring,R.sup.3 represents H, or substituted or unsubstituted alkyl or aryl,R.sup.5 and R.sup.6 each independently represents H, or R.sup.5 taken together with R.sup.1, or R.sup.6 taken together with R.sup.
    Type: Grant
    Filed: December 23, 1987
    Date of Patent: August 15, 1989
    Assignee: Eastman Kodak Company
    Inventors: Donald R. Diehl, Ronda E. Factor
  • Patent number: 4855221
    Abstract: Photographic elements having oxonol dyes of the formula: ##STR1## R.sup.1 and R.sup.2 each independently represent alkyl of from 1 to 5 carbon atoms are disclosed. The dyes are particularly useful as filter dyes in the form of solid particle microcrystalline dispersions.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: August 8, 1989
    Assignee: Eastman Kodak Company
    Inventors: Ronda E. Factor, Donald R. Diehl
  • Patent number: 4855213
    Abstract: Polymethine dyes are disclosed containing an acidic electron accepting terminal nucleus comprised of an isocyano group. The dyes are useful as spectral sensitizers in ultravioilet responsive imaging compositions.
    Type: Grant
    Filed: April 20, 1988
    Date of Patent: August 8, 1989
    Assignee: Eastman Kodak Company
    Inventor: Margaret E. Logan
  • Patent number: 4849326
    Abstract: UV-sensitive direct positive silver halide photographic elements for duplicating processes which can be safely handled under white light, said elements comprising a support base, a hydrophilic colloidal silver halide emulsion layer comprising fogged silver halide grains, and one or more hydrophilic colloidal layers, wherein said silver halide emulsion is reactively associated with a water-removable UV-absorbing compound having at least 80% of the absorption in the range from 350 to 400 .mu.m.
    Type: Grant
    Filed: July 8, 1988
    Date of Patent: July 18, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mauro Besio, Alberto Vacca, Angelo Vallarino
  • Patent number: 4847185
    Abstract: Photographic compounds capable of releasing a photographically useful group (PUG) by means of an intramolecular nucleophilic displacement provide increased image acutance when a coupling-off group in the coupling position of the compound is a group of the formula: ##STR1## wherein PUG is a photographically useful group; Q is N or C--R where R is hydrogen or a substituent that does not adversely affect imaging; and Z represents atoms completing a non-aromatic, heterocyclic ring. The photographic compounds are useful in photographic materials and processes.
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: July 11, 1989
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Michael J. Carmody, John M. Buchanan
  • Patent number: 4847149
    Abstract: A base for reflection-photographic elements is disclosed which has a biaxially stretched film support, said film comprising polyester resin and titanium dioxide, wherein said film contains at least one compound represented by the following general formula (I) or (II). ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 each represents a hydrogen atom, a halogen atom, an unsubstituted or substituted alkyl group, an alkoxy group, a dialkylamino group or an aryl group, provided that R.sup.1, R.sup.2, R.sup.3 and R.sup.4 may cooperate to form a ring. ##STR2## wherein A represents --CH.dbd.CH--, ##STR3## and R.sub.6, R.sub.7, R.sub.8 and R.sub.9 each represents a hydrogen atom, a halogen atom, an unsubstituted or substituted alkyl group, an alkoxy group, a dialkylamino group or an aryl group, provided that R.sub.6 and R.sub.7, and R.sub.8 and R.sub.9 each may cooperate to form a ring.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: July 11, 1989
    Assignee: Konica Corporation
    Inventors: Kazuto Kiyohara, Yoshiyuki Funabashi, Naoko Shimomura
  • Patent number: 4840881
    Abstract: A process for the preparation of a light-sensitive silver halide photographic material comprising a support, a silver halide emulsion layer, and a non-light-sensitive hydrophilic colloid layer which consists essentially of a plurality of layer elements; a process comprises incorporating oil particles into at least one of the elements, so that the oil particle density of the outermost layer element is not the highest of the oil particle densities of all of the elements.
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: June 20, 1989
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Yoshikazu Watanabe, Motoaki Tanaka
  • Patent number: 4839274
    Abstract: Polymethine dyes and ultraviolet absorbers are disclosed containing a basic electron donating terminal nucleus and an acidic electron accepting terminal nucleus comprised of a triarylborylisocyano group. The dyes are useful in imaging materials.
    Type: Grant
    Filed: June 30, 1987
    Date of Patent: June 13, 1989
    Assignee: Eastman Kodak Company
    Inventor: Margaret E. Logan
  • Patent number: 4839260
    Abstract: Polymethine dyes and ultraviolet absorbers are disclosed containing a basic electron donating terminal nucleus and an acidic electron accepting terminal nucleus satisfying the formula: ##STR1## where Ar is independently in each occurrence an aromatic group andD is an oxy or amino group.These polymethines are useful in imaging materials.
    Type: Grant
    Filed: June 30, 1987
    Date of Patent: June 13, 1989
    Assignee: Eastman Kodak Company
    Inventor: Margaret E. Logan
  • Patent number: 4822718
    Abstract: A broad spectrum light absorbing medium to be coated over photosensitive layers, such as a photoresist for integrated circuit "chips" to act as a true surface for autofocus of the camera used to expose the photoresist. The product may also be used where a light impermeable, high contrast or black coating is needed, such as, in liquid crystal displays and light emitting diodes, photodiodes, solid state lasers, or patterning apertures on light-wave modulators. The coating absorbs light from 200 to 1000 nanometers. The coating has a polymer vehicle which can form a tightly adhering, thin, smooth and uniform coating. The coating includes a light absorbing dye. This light absorbing layer may be imageable.
    Type: Grant
    Filed: February 4, 1986
    Date of Patent: April 18, 1989
    Assignee: Brewer Science, Inc.
    Inventors: William J. Latham, Terry L. Brewer, Jeffry Hunninghake
  • Patent number: 4806446
    Abstract: A photosensitive recording medium having a multiplicity of microcapsules formed on a substrate, and a developer material, each microcapsule having a photosensitive resin and a chromogenic material which reacts with the developer layer to form a colored image spot. The microcapsules comprise a plurality of microcapsule groups which are sensitive to radiations having different wavelength bands, or which are sensitive to different intensities of the radiation. An image recording system is provided with an illuminating device for generating radiations of different wavelengths falling within the wavelength bands of the microcapsule groups, or a radiation of variable intensity. The recording system has a selector for selecting at least one of the radiations of the different wavelengths, or one of the intensity levels of the radiation, in order to adjust the contrast of the images formed on the medium, with respect to non-image areas on the medium.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: February 21, 1989
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Naoyuki Hatta, Satoshi Furukawa
  • Patent number: 4803149
    Abstract: A silver halide photographic material for a bright room and a process for producing the photographic material are disclosed, wherein the silver halide photographic material for a bright room comprises a support having thereon at least one silver halide emulsion layer containing silver chloride grains or silver chlorobromide grains containing at least 80 mol % silver chloride, at least one of said silver halide emulsion layer or another hydrophilic colloid layer(s) present containing a yellow dye making the silver halide photographic material substantially insensitive to visible light of 420 n.m. or more and an ultraviolet absorbent in an amount sufficient to reduce the specific sensitivity of the silver halide emulsion at 360 n.m. to 1/2 or lower than 1/2 thereof in the absence of the ultraviolet absorbent, and the .gamma. value of the silver halide photographic material being at least 10.
    Type: Grant
    Filed: October 6, 1986
    Date of Patent: February 7, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshiro Takahashi, Ken-ichi Kuwabara, Masahiro Okada
  • Patent number: 4795696
    Abstract: Disclosed is a light-sensitive silver halide photographic material, comprising a plural number of photographic constituent layers on a support, wherein at least one of the layers is a silver halide emulsion layer containing a magenta coupler represented by Formula (I) shown below, and at least one of the photographic constituent layers excluding at least the above silver halide emulsion layer contains at least one of the compounds represented by Formula (a) and Formula (b) shown below:Formula (I): ##STR1## Formula (a) ##STR2## Formula (b) ##STR3## The light-sensitive silver halide photographic material according to this invention have excellent color reproducibility, and is remarkably improved in both the fastness to light of magenta dye images and the resistance to the yellowing thereof to be generated by light (light stain).
    Type: Grant
    Filed: April 19, 1988
    Date of Patent: January 3, 1989
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Masao Sasaki, Kaoru Onodera