Azo Patents (Class 430/225)
  • Patent number: 9540764
    Abstract: A method includes coating a substrate to provide a flame resistant substrate. In an embodiment, the method includes exposing the substrate to a cationic solution to produce a cationic layer deposited on the substrate. The cationic solution comprises cationic materials. The cationic materials comprise a polymer, a colloidal particle, a nanoparticle, a nitrogen-rich molecule, or any combinations thereof. The method further includes exposing the cationic layer to an anionic solution to produce an anionic layer deposited on the cationic layer to produce a layer comprising the anionic layer and the cationic layer. The anionic solution comprises a layerable material.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: January 10, 2017
    Assignee: The Texas A&M University System
    Inventor: Jaime C. Grunlan
  • Patent number: 6582657
    Abstract: A very sensitive dosimeter that detects ionizing radiation is described. The dosimeter includes a breakable sealed container. A solution of a reducing agent is inside the container. The dosimeter has an air-tight dosimeter body with a transparent portion and an opaque portion. The transparent portion includes a transparent chamber that holds the breakable container with the reducing agent. The opaque portion includes an opaque chamber that holds an emulsion of silver salt (AgX) selected from silver chloride, silver bromide, silver iodide, and combinations of them. A passageway in the dosimeter provides fluid communication between the transparent chamber and the opaque chamber. The dosimeter may also include a chemical pH indicator in the breakable container that provides a detectable color change to the solution for a pH of about 3-10.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: June 24, 2003
    Assignee: The Regents of the University of California
    Inventors: Benjamin P. Warner, Deidre M. Johns
  • Patent number: 6180324
    Abstract: A heat developable color photographic material for use in an image-forming process comprising: (a) superposing a heat developable color photographic material onto an image-receiving material that is formed on a separate support from a support of the heat developable color photographic material; and (b) heat-developing the heat developable color photographic material superposed on the image-receiving material to form or release a diffusible dye, so that the diffusible dye is transferred to the image-receiving material to thereby form an image: wherein the heat developable color photographic material contains at least a light-sensitive silver halide and yellow, magenta and cyan dye-donating compounds, which form or release diffusible yellow, magenta and cyan dyes, respectively, by heat development corresponding to silver development, wherein the yellow, magenta and cyan dyes, respectively, has a maximum absorption intensity of spectral absorption at a wavelength of from 440 nm to 460 nm, from 525 nm to 545 nm,
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: January 30, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kazuki Uehara
  • Patent number: 6037095
    Abstract: A non-aqueous lithium ion secondary battery is composed of a positive electrode, a negative electrode, and non-aqueous electrolyte. In the battery, the positive electrode is composed of an positive electrode active material of the formula: Li.sub.x Ni.sub.1-y M.sub.y O.sub.2-z X.sub.a in which M is at least one element such as Mg, Ca, B, Al, Ga, In, Si, Sn, Ge, Pb and at least one transition metal element; X is a halogen atom; x, y, z and a are numbers satisfying the conditions of 0.2<x.ltoreq.1.2, 0<y.ltoreq.0.5, 0.ltoreq.z.ltoreq.1 and 0.ltoreq.a.ltoreq.2z, and the negative electrode is composed of amorphous metal complex oxide or a combination of crystalline and/or amorphous metal complex oxide and carbonaceous material.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: March 14, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tsutomu Miyasaka
  • Patent number: 5817452
    Abstract: A heat developable color light-sensitive material provided on a support, which is for use in an image forming process comprising using a dye fixing element provided on a support separate from the support for the light-sensitive material, superposing one on another, heat developing to form a diffusible dye in the light sensitive material, and transferring the diffusible dye to the dye fixing element to form an image, is disclosed.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: October 6, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tetsu Kamosaki
  • Patent number: 5731140
    Abstract: A pyrazolylazophenol dye exhibiting excellent spectral characteristics and having high fastness to light, heat, air or chemicals, and a color light-sensitive material containing an image forming compound comprising the dye, which releases a magenta dye exhibiting excellent spectral characteristics and having high fastness to light, heat, air or chemicals.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: March 24, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takayoshi Kamio, Nobuo Seto, Hironori Hiyoshi
  • Patent number: 5716754
    Abstract: There are described image-recording materials which include an image dye-providing compound comprising a novel naphthol azo cyan dye having a 3-aminobenzoisothiazole moiety. The image dye-providing compound includes a diffusion control moiety such as a hydroquinonyl developer group, a precursor thereof or a thiazolidine moiety and, may be diffusible or nondiffusible as a function of the diffusion control moiety.Image-recording materials according to the invention including those which contain high potential developers such as aminoreductone allow sufficient cyan chromophore to diffuse to the image-receiving layer to provide an acceptable photograph and result in no appreciable reduction of the 3-aminobenzoisothiazole moiety of the novel naphthol azo cyan dye.
    Type: Grant
    Filed: September 18, 1996
    Date of Patent: February 10, 1998
    Assignee: Polaroid Corporation
    Inventors: Michael J. Arnost, Peter Viski, David P. Waller, David C. Whritenour
  • Patent number: 5663042
    Abstract: A thermographic element comprising in a non-aqueous binder medium a silver salt oxidizing agent in reactive association with a compound comprising a plurality of redox color releasing moieties such that oxidation of each redox color releasing moiety causes release from said compound of a thermally diffusible dye.The compounds many of which are new incorporate two or more developer moieties into a single molecule to minimize the diffusibility of the compound. Following oxidation, either directly by the silver salt or by means of a cross-oxidizing agent, each oxidized developer moiety releases a thermally diffusible dye. The compounds are of sufficient size and molecular weight to slow or prevent diffusion in imaging systems and yet possess several active developer moieties per molecule which is advantageous over known ballasted dye releasers which comprise bulky molecules with only a single developer moiety.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: September 2, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Duncan McL. A. Grieve, Justine A. Mooney, William E. Bottomley, John H. A. Stibbard, Andrew W. Mott, Robert J. D. Nairne, David C. Bays, Stephen S. C. Poon, Raymond J. Kenney, Gilbert L. Eian, Takuzo Ishida, Doreen C. Lynch, Roger A. Mader, Sharon M. Simpson, Kim M. Vogel
  • Patent number: 5512414
    Abstract: A photographic color diffusion transfer element is disclosed wherein said element comprises a single dimensionally stable support, wherein said support comprises an opaque and light reflecting layer, and coated thereon in reactive association and in sequence (1) a mordant layer for binding diffusible dyes, (2) a stripping layer, (3) one or more layers comprising radiation sensitive silver halide, a solid particle dispersion of a diffusible-dye forming compound, or radiation sensitive silver halide and a solid particle dispersion of a diffusible-dye forming compound, and (4) a barrier layer comprising a polymer that (a) allows the passage of solutions for processing said element when said element is contacted with an external processing bath and (b) blocks the diffusion out of said element of the diffusible dye formed from said solid particle dispersion of a diffusible-dye forming compound when said element is contacted with an external processing bath.
    Type: Grant
    Filed: September 23, 1993
    Date of Patent: April 30, 1996
    Assignee: Eastman Kodak Company
    Inventor: John Texter
  • Patent number: 5171669
    Abstract: Water soluble polymers are useful in combination with cobalt(III) redox reagents. When incorporated with the polymers, the cobalt(III) reagents exhibit improved sensitivity compared to fresh solutions of the reagents. In preferred embodiments, the cobalt(III) reagents are coated on a support using the water soluble polymer as a binder. Small areas of the coated support are then cut out and placed in a buffer solution to provide a working reagent solution. The solution is particularly useful in the testing of urine for significant bacteriuria.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: December 15, 1992
    Assignee: Eastman Kodak Company
    Inventors: Brent A. Burdick, Robert W. Zercie
  • Patent number: 5141855
    Abstract: Reagents and methods for the determination of analytes are disclosed, using water soluble cobalt(III) complexes and metallizable dyes to form cobalt(III) complexes of the metallizable dyes. Analytes which can be determined include enzymes, cells and biological reductants, such as NADH, NADPH and ascorbate. Amplification is provided since one equivalent of the analyte provides more than one equivalent of the detectable species.
    Type: Grant
    Filed: July 28, 1986
    Date of Patent: August 25, 1992
    Assignee: Eastman Kodak Company
    Inventor: Eric R. Schmittou
  • Patent number: 4957848
    Abstract: A heat-developable color light-sensitive material is disclosed, comprising a support having thereon at least one layer containing a light-sensitive silver halide, a binder, a compound containing a color moiety represented by formula (A), and a compound or a precursor thereof which reacts with an oxidized compound formed from the compound of formula (A), thereby converting the oxidized compound into a nondiffusible form, said compound of formula (A) being represented by ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 each represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, an aralkyl group, an alkoxy group, an aryloxy group, an acylamino group, an alkylthio group, an arylthio group, or a halogen atom, provided that at least one of R.sub.1, R.sub.2, and R.sub.
    Type: Grant
    Filed: May 10, 1988
    Date of Patent: September 18, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Osamu Takahashi, Koichi Koyama, Keizo Koya
  • Patent number: 4830957
    Abstract: A color light-sensitive material is disclosed. The material is comprised of a support having provided thereon at least one image-forming compound represented by formula (I)(Dye--X).sub.q Y (I)wherein X, Y, q, and Dye are as defined herein. The light-sensitive material shows excellent yellow dye-transferring properties and provides a yellow dye having excellent light fastness.
    Type: Grant
    Filed: October 7, 1987
    Date of Patent: May 16, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kozo Sato, Masashi Takeuchi, Takeshi Shibata
  • Patent number: 4818563
    Abstract: A process for forming a deposited film comprises introducing into a film forming space housing a substrate therein an active species (A) formed by decomposition of a compound containing germanium and a halogen and an active species (B) formed from a chemical substance for film formation which is reactive with said active species (A) separately from each other, then providing them with heat energy and thereby allowing both the species to react with each other thereby to form a deposited film on the substrate.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: April 4, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shunichi Ishihara, Shigeru Ohno, Masahiro Kanai, Shunri Oda, Isamu Shimizu
  • Patent number: 4803151
    Abstract: A photographic material for the silver dye bleach process comprises, in at least one layer, a colloidal dispersion of azo in gelatine, the ratio of azo dye to gelatine being 1:1 to 1:10.
    Type: Grant
    Filed: February 11, 1987
    Date of Patent: February 7, 1989
    Assignee: Ciba-Geigy AG
    Inventors: Rolf Steiger, Matthias Schellenberg
  • Patent number: 4766056
    Abstract: A heat-developable color light-sensitive material is disclosed, comprising a support having thereon at least one layer containing a light-sensitive silver halide, a binder, a compound containing a color moiety represented by formula (A), and a compound or a precursor thereof which reacts with an oxidized compound formed from the compound of formula (A), thereby converting the oxidized compound into a non-diffusible form, said compound of formula (A) being represented by ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 each represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, an aralkyl group, an alkoxy group, an aryloxy group, an acylamino group, an alkylthio group, an arylthio group, or a halogen atom, provided that at least one of R.sub.1, R.sub.2, and R.sub.
    Type: Grant
    Filed: February 21, 1986
    Date of Patent: August 23, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Osamu Takahashi, Koichi Koyama, Keizo Koya
  • Patent number: 4729942
    Abstract: A method for forming an image comprising heating a light-sensitive material comprising a support having provided thereon at least a light-sensitive silver halide and a dye developer in the presence of a base and/or a base precursor after or simultaneously with imagewise exposure to imagewise distribute a mobile non-oxidation type dye developer, wherein the dye developer is a compound having a dye moiety having a ballast group which is split off upon heating in the presence of the base and/or base precursor and a developer moiety against the silver halide in one molecule, is disclosed. According to the method of the present invention, images which are improved in image identification and color separation characteristics are obtained by heat development of the light-sensitive material.
    Type: Grant
    Filed: August 19, 1986
    Date of Patent: March 8, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Osamu Takahashi, Kiyoshi Morimoto
  • Patent number: 4725531
    Abstract: A photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer having associated therewith a compound represented by formula (I) ##STR1## wherein Q represents a cyano group, a trifluoromethyl group, or a carbamoyl group represented by the formula --CONR.sup.1 R.sup.2 (wherein R.sup.1 represents a hydrogen atom, an alkyl group, or a substituted alkyl group, and R.sup.2 represents a hydrogen atom, an alkyl group, a substituted alkyl group, an aralkyl group, or an aryl group, or R.sup.1 and R.sup.2 may combine directly or through an oxygen atom to form a ring); M represents an alkyl group, a substituted alkyl group, an alkoxy group, a substituted alkoxy group, or a halogen atom; E.sup.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: February 16, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toru Harada, Masaharu Toriuchi
  • Patent number: 4719175
    Abstract: There are described novel pyrazole compounds represented by the formula ##STR1## wherein Y is a silver halide developing substituent or a precursor thereof; R is --OH, --NH.sub.2 or --NHSO.sub.2 --R.sub.1 ; R.sub.1 is alkyl having from 1 to 6 carbon atoms or phenyl; and m and n are the same or different and each is an integer of from 1 to 6. The pyrazole compounds are useful as intermediates in the preparation of azo and azomethine dye developers or as silver halide developing agents.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: January 12, 1988
    Assignee: Polaroid Corporation
    Inventors: Efthimios Chinoporos, Elbert M. Idelson, Patrick F. King
  • Patent number: 4656117
    Abstract: There are described novel azo and azomethine dye developers which include a pyrazolone moiety having two silver halide developing groups. In one embodiment the dye developers are metal complexed. The dye developer compounds are useful in photographic products and processes.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: April 7, 1987
    Assignee: Polaroid Corporation
    Inventors: Efthimios Chinoporos, Elbert M. Idelson, Patrick F. King
  • Patent number: 4575482
    Abstract: Photographic materials which comprise, on a base, at least one layer containing an azo dyestuff of the formula ##STR1## in which R.sub.1 is hydrogen, an alkylsulfone, halogen, cyano or nitro, R.sub.2 is hydrogen, halogen, cyano or nitro, R.sub.3 is hydrogen, alkyl, halogen, cyano or nitro, B.sub.1 is an aromatic ring system, K.sub.1 is an aromatic amine and m.sub.1 is 1 or 2.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: March 11, 1986
    Assignee: Ciba-Geigy AG
    Inventor: John Lenoir
  • Patent number: 4563412
    Abstract: Diffusion transfer photographic color products and processes are described in which there are utilized novel chrome complexed neutral tone black image dye-providing materials which include either a 1-naphthol-2'-naphthol-1', 2-azo dye moiety or a 2-naphthol-2'naphthol-1, 1'-azo dye moiety, a parasubstituted phenyl azo-pyrazolone dye moiety and a cation. The image dye-providing material includes a diffusion control moiety such as a hydroquinonyl group or a precursor thereof and may be diffusible or nondiffusible as a function of the diffusion control moiety.
    Type: Grant
    Filed: September 26, 1984
    Date of Patent: January 7, 1986
    Assignee: Polaroid Corporation
    Inventors: Patrick F. King, Stephen G. Stroud
  • Patent number: 4548888
    Abstract: Photographic elements, diffusion transfer assemblages, coordination complexes and processes are described which employ a novel nondiffusible hydrazone compound capable of releasing at least one diffusible yellow dye or dye precursor thereof having the formula: ##STR1## wherein: (a) Z.sup.1 and Z.sup.2 each independently represents the atoms necessary to complete a 5- or 6-membered aromatic heterocyclic ring;(b) CAR represents a ballasted carrier moiety capable of releasing the diffusible yellow dye moiety or precursor thereof as a function of development;(c) R represents hydrogen, an alkyl or substituted alkyl group of from 1 to about 12 carbon atoms, an aryl or substituted aryl group of from about 6 to about 12 carbon atoms, a substituted or unsubstituted 5- or 6-membered aromatic heterocyclic ring, or CAR, and(d) n is 0, 1 or 2, with the proviso that when n is 0, then R is CAR.
    Type: Grant
    Filed: November 7, 1984
    Date of Patent: October 22, 1985
    Assignee: Eastman Kodak Company
    Inventor: Michael W. Crawley
  • Patent number: 4521591
    Abstract: Compounds of the formula ##STR1## in which X.sub.1 is hydrogen, alkyl, alkoxy, --NL.sub.1 COM.sub.1, in which L.sub.1 is hydrogen or alkyl and M.sub.1 is alkyl or alkoxy, or is --NL.sub.1 P(O)(OG.sub.1).sub.2, in which G.sub.1 is alkyl, or is alkylsulfonamide or hydroxyl, Y.sub.1 is hydrogen, alkyl, alkoxy, carbalkoxy, N-alkyl-substituted or N,N-dialkyl-substituted amino or --NL.sub.2 COM.sub.2, in which L.sub.2 is hydrogen or alkyl and M.sub.2 is alkyl or alkoxy, Z.sub.1 is hydrogen, alkyl, alkoxy, --NL.sub.2 COM.sub.3, in which M.sub.3 is alkyl, or is carbalkoxy or halogen or represents those atoms which are required to form a ring with Y.sub.1, W.sub.1 is hydrogen, alkyl or alkoxy, R.sub.1 and R.sub.2 independently of one another are hydrogen, halogen, cyano, nitro or --SO.sub.2 U.sub.3, in which U.sub.3 is alkyl or phenyl, R.sub.3 is hydrogen or alkyl or, if R.sub.4 is a direct chemical bond, the two radicals R.sub.3 together are a link member and R.sub.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: June 4, 1985
    Assignee: Ciba-Geigy AG
    Inventors: Gerald Jan, John Lenoir
  • Patent number: 4481278
    Abstract: Novel chrome complexed azo and azomethine yellow dye developers which include a substantially colorless symmetrical ligand. Also disclosed are photographic products and processes which utilize the dye developers.
    Type: Grant
    Filed: October 29, 1982
    Date of Patent: November 6, 1984
    Assignee: Polaroid Corporation
    Inventors: Patrick F. King, Stephen G. Stroud
  • Patent number: 4481286
    Abstract: Novel compounds which are capable of forming a coordination complex with a metal and which include a silver halide developing substituent or a precursor thereof. The compounds are useful as silver halide developing agents and as intermediates for dye developers which are utilized in photographic applications.
    Type: Grant
    Filed: October 29, 1982
    Date of Patent: November 6, 1984
    Assignee: Polaroid Corporation
    Inventors: Patrick F. King, Stephen G. Stroud
  • Patent number: 4474854
    Abstract: In a photographic material suitable as image receptor element for the dye diffusion transfer process, a dye absorbent layer arranged on a layer support contains nickel chelates or copper-II chelates of a compound corresponding to the following general formula I as metallizing agents for the formation of colored complexes from colorless or colored organic complex formers. The chelatable image dyes transferred imagewise to the dye adsorbent layer in the course of development give rise to the corresponding nickel or copper-II complexes with improved light stability. ##STR1## wherein R.sup.1 represents a hydrocarbon group having up to 30 carbon atoms optionally interrupted by --O--;R.sup.2, R.sup.3 represents H, alkyl having up to 5 carbon atoms or aryl having from 6 to 10 carbon atoms; andR.sup.4, R.sup.4' represents alkyl or alkoxy having from 1 to 4 carbon atoms, aralkyl or OH.
    Type: Grant
    Filed: January 10, 1983
    Date of Patent: October 2, 1984
    Assignee: Agfa-Gevaert AG
    Inventors: Peter Bergthaller, Jurgen Strauss
  • Patent number: 4468452
    Abstract: A color diffusion transfer photographic element comprising a support having provided thereon a layer containing a dye-providing material associated with a light-sensitive silver halide emulsion, wherein said dye-providing material is a metal chelate compound represented by the following general formula (I) or (II): ##STR1## wherein M.sup.I represents a monovalent, divalent, or trivalent cation; X represents a monovalent, divalent, or trivalent anion; Z and Z.sup.2 each represents an aromatic carbon ring nucleus or heterocyclic ring nucleus having 5 to 7 carbon atoms; G represents a chelating group; Z.sup.1 represents an aromatic carbon ring nucleus or heterocyclic nucleus composed of 5 to 7 atoms; said nucleus having (a) a nitrogen atom, or (b) a carbon atom bonded to a chelating group at the position adjacent to the position bonded to the azo group; Z.sup.3 represents an electron attractive group; Z.sup.
    Type: Grant
    Filed: March 24, 1983
    Date of Patent: August 28, 1984
    Assignee: Fuji Photo Film Company, Limited
    Inventors: Shigeru Nakamura, Shigetoshi Ono, Seiji Suzuki, Hirohisa Suzuki
  • Patent number: 4425422
    Abstract: A method for the formation of a color photographic image comprising exposure and development of a photographic element, said photographic element comprising at least one silver halide emulsion layer, a compound capable of releasing a diffusible azo dye compound during development, and at least one mordant layer arranged on a support. The color image formation is effected by the reaction of multivalent metallic ions with an azo dye compound having the formula: ##STR1## wherein G.sup.1 is an alkoxy or a thioalkoxy metallic chelating group; G.sup.2 is a metallic chelating group in which an oxygen atom is involved in the chelate formation; and Z.sup.1 and Z.sup.2 each is a group of atoms necessary to form an aromatic carbocyclic ring or a heterocyclic ring. The azo dye compound and the metallic ions form a metal complex by coordination of the azo group and the G.sup.1 and G.sup.2 groups of the azo dye compound with the multivalent metallic ions.
    Type: Grant
    Filed: May 6, 1982
    Date of Patent: January 10, 1984
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Tawara Komamura, Jiro Takahashi, Ryuichiro Kobayashi
  • Patent number: 4386150
    Abstract: Diffusion transfer photographic color processes and products are described utilizing novel image dye-providing materials which provide image dyes having the chromophoric system represented by the formula ##STR1## wherein X is ##STR2## or --SO.sub.2 --R.sub.1 ; Z is H, alkyl or aryl; R is H, alkyl or aryl; DYE is any dye moiety; R.sub.1 is H, alkyl, aryl, --NH.sub.2, --NHR.sub.2, --N(R.sub.2).sub.2 or --OR.sub.2 ; R.sub.2 is H, alkyl or aryl; and m is 1 or 2. The image dye providing material includes a diffusion control moiety such as a hydroquinonyl group or a precursor thereof and may be diffusible or nondiffusible as a function of the diffusion control moiety.
    Type: Grant
    Filed: December 18, 1981
    Date of Patent: May 31, 1983
    Assignee: Polaroid Corporation
    Inventors: Stephen R. Herchen, Gary N. Widiger
  • Patent number: 4368251
    Abstract: A photographic light-sensitive sheet containing at least one light-sensitive silver halide emulsion layer, with at least one of said emulsion layers being associated with a compound represented by the following general formula (I) or (II): ##STR1## wherein B.sub.1 represents a hydrogen atom or an alkyl group, etc.; B.sub.2 represents a hydrogen atom, an alkyl group, an acyl group, an alkylsulfonyl group, etc.; D.sub.1 and D.sub.2 may be the same or different and each represents a hydrogen atom, an alkyl group, an alkoxy group, a halogen atom, etc., provided that D.sub.2 does not represent an alkoxy-substituted alkoxy group; E.sub.1 and E.sub.2 may be the same or different and each represents a hydrogen atom, a cyano group, halogen atom, an alkyl group, an alkoxy group, a sulfonamido group, a carbonamido group, a sulfamoyl group, a carbamoyl group, etc., provided that E.sub.2 does not represent an alkoxy-substituted alkoxy group; R.sup.1 represents an alkylene group containing two or more carbon atoms; R.sup.
    Type: Grant
    Filed: April 16, 1980
    Date of Patent: January 11, 1983
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shigetoshi Ono, Shinsaku Fujita
  • Patent number: 4363865
    Abstract: Imidomethyl blocked photographic image dyes and dye releasing compounds are useful in photographic elements, film units and processes. The blocked photographic dyes and dye releasing compounds have the structures: ##STR1## wherein: J represents ##STR2## X represents the atoms to complete at least one 5- or 6-membered ring; R represents hydrogen, alkyl of 1 to 4 carbon atoms or aryl of 6 to 12 carbon atoms;Q represents ##STR3## --Q--DYE represents the residue of a diffusible photographic dye; and CAR is a ballasted carrier moiety from which the dye moiety is released as a function of silver halide development.
    Type: Grant
    Filed: March 4, 1981
    Date of Patent: December 14, 1982
    Assignee: Eastman Kodak Company
    Inventors: James A. Reczek, Thomas R. Welter
  • Patent number: 4358526
    Abstract: A photographic light-sensitive sheet for the color diffusion transfer process which comprises a support having thereon at least one light-sensitive silver halide emulsion layer having associated therewith a compound represented by the following general formula (I): ##STR1## wherein X.sup.1 represents --J--NR.sup.2 -- or --NR.sup.2 --J-- wherein R.sup.2 represents a hydrogen atom or an alkyl group, and J represents --SO.sub.2 -- or --CO--; R.sup.1 represents an alkyl group; X.sup.2 represents --R.sup.3 --L).sub.k (R.sup.4).sub.e -- wherein R.sup.3 and R.sup.4, which may be the same or different, each represents an alkylene group, a substituted alkylene group, a phenylene group or a substituted phenylene group, L represents --O--, --CO--, --SO.sub.2 NH--, --CONH--, --NHSO.sub.2 --, --NHCO--, --SO.sub.2 -- or --SO--, k represents 0 or 1, and e represents 1 when k is 1, or 1 or 0 when k is 0, provided that when X.sup.2 bonds to X.sup.1, X.sup.1 bonds to R.sup.
    Type: Grant
    Filed: August 18, 1981
    Date of Patent: November 9, 1982
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shinsaku Fujita, Isamu Itoh, Shigetoshi Ono, Tooru Harada, Yoshinobu Yoshida
  • Patent number: 4346161
    Abstract: Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable 6-(2-thienylazo)-3-pyridinol cyan dye moiety or precursor thereof, the compound containing:(a) in the 3-position of the thienylazo moiety a carboxy group, a salt thereof or a hydrolyzable precursor thereof; and(b) a ballasted carrier moiety which is capable of releasing the diffusible 6-(2-thienylazo)-3-pyridinol dye moiety or precursor thereof under alkaline conditions.
    Type: Grant
    Filed: April 29, 1981
    Date of Patent: August 24, 1982
    Assignee: Eastman Kodak Company
    Inventors: James J. Krutak, Robert J. Maleski, William H. Moore
  • Patent number: 4340661
    Abstract: A photographic light sensitive sheet for color diffusion transfer process which comprises a light sensitive silver halide emulsion layer associated with a novel azo dye-providing compound containing a --OR.sup.1 --O--R.sup.2 moiety as an indispensable substituent wherein R.sup.1 represents an alkylene group having 2 or more carbon atoms and R.sup.2 represents an alkyl group or a substituted alkyl group.
    Type: Grant
    Filed: April 3, 1980
    Date of Patent: July 20, 1982
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shigetoshi Ono, Shinsaku Fujita
  • Patent number: 4323635
    Abstract: A color photographic material suitable for processing with an alkaline solution in the presence of a developing agent is described, comprising a support and, in sequence, the following five layers:(1) a first emulsion layer containing an internal latent image forming direct reversal silver halide emulsion that is selectively sensitive to light in a first spectral region;(2) a first color material layer containing a ballasted dye releasing redox compound that provides a dye image that selectively absorbs light in the first spectral region;(3) an intermediate layer containing a ballasted reducing agent that captures an oxidized developing agent or electron transfer agent;(4) a second emulsion layer containing an internal latent image forming direct reversal silver halide emulsion that is selectively sensitive to light in a second spectral region; and(5) a second color material layer containing a ballasted dye releasing redox compound that provides a dye image that selectively absorbs light in the second spectra
    Type: Grant
    Filed: November 6, 1980
    Date of Patent: April 6, 1982
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yasushi Oishi
  • Patent number: 4310612
    Abstract: Photographically useful compounds such as photographic reagents and photographic dyes are blocked with a grouping which, under alkaline conditions, is cleaved from the compound by an intramolecular nucleophilic displacement reaction. The compounds are resistant to unblocking under storage conditions, but are uniformly unblocked under conditions encountered during photographic processing.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: January 12, 1982
    Assignee: Eastman Kodak Company
    Inventors: Jared B. Mooberry, William C. Archie, Jr.
  • Patent number: 4267253
    Abstract: There are described novel magenta 1:1 chrome-complexed dye developers which are particularly useful in photographic products and processes. These novel magenta dye developers are ionic salts which include a cation and a colorless ligand which is a radical of an iminodiacetic acid.
    Type: Grant
    Filed: March 21, 1980
    Date of Patent: May 12, 1981
    Assignee: Polaroid Corporation
    Inventor: Elbert M. Idelson
  • Patent number: 4267252
    Abstract: There are described novel magenta chrome complexed dye developers which are particularly useful in photographic products and processes. These novel magenta dye developers are zwitterionic compounds which include an onium salt such as a quaternary ammonium salt and a colorless ligand which is a radical of an iminodiacetic acid.
    Type: Grant
    Filed: March 21, 1980
    Date of Patent: May 12, 1981
    Assignee: Polaroid Corporation
    Inventor: Elbert M. Idelson
  • Patent number: 4250238
    Abstract: Photographic elements, diffusion transfer assemblages and processes are described which employ a novel dye developer compound having a dye moiety such as an arylazopyrazolotriazole. The compound contains:(a) a nitrogen atom in a metal chelating location in at least one of the rings attached to the azo group;(b) in the ortho position of the arylazo moiety a metal chelating group (or a salt thereof or a hydrolyzable precursor thereof), and(c) a silver halide developer moiety.The dye developer is transferred imagewise to an image-receiving layer where it is contacted with metal ions to form a metal-complexed dye developer transfer image of excellent stability.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: February 10, 1981
    Assignee: Eastman Kodak Company
    Inventors: Brian D. Baigrie, Joseph Bailey, Linda G. Johnston, Miroslav V. Mijovic
  • Patent number: 4248956
    Abstract: Photographic elements, diffusion transfer assemblages and processes are described which employ a novel dye developer compound having a dye moiety such as an arylazo-pyrazolotriazole. The compound contains:(a) a nitrogen atom in a metal chelating location in at least one of the rings attached to the azo group;(b) in the ortho position of the arylazo moiety a metal chelating group (or a salt thereof or a hydrolyzable precursor thereof), and(c) a silver halide developer moiety.The dye developer is transferred imagewise to an image-receiving layer where it is contacted with metal ions to form a metal-complexed dye developer transfer image of excellent stability.
    Type: Grant
    Filed: March 2, 1979
    Date of Patent: February 3, 1981
    Assignee: Eastman Kodak Company
    Inventors: Brian D. Baigrie, Joseph Bailey, Linda G. Johnston, Miroslav V. Mijovic
  • Patent number: 4245028
    Abstract: A photographic light-sensitive sheet for the color diffusion transfer process which comprises a support having thereon at least one light-sensitive silver halide emulsion layer with at least one of said silver halide emulsion layers having associated therewith a compound represented by the following general formula (I): ##STR1## wherein Q represents a cyano group, a trifluoromethyl group or a carbamoyl group represented by the formula --CONR.sup.3 R.sup.4 wherein R.sup.3 represents a hydrogen atom or an alkyl group; R.sup.4 represents a hydrogen atom, an alkyl group, an aralkyl group or an aryl group; and R.sup.3 and R.sup.4 may combine directly or through an oxygen atom to form a ring; M represents a hydrogen atom, an alkyl group, an alkoxy group, a sulfamoyl group represented by the formula --SO.sub.2 NR.sup.3 R.sup.4, wherein R.sup.3 and R.sup.4 are as defined above, a group represented by the formula --COOR.sup.5 wherein R.sup.
    Type: Grant
    Filed: February 21, 1979
    Date of Patent: January 13, 1981
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shinsaku Fujita, Tooru Harada, Katsusuke Endo
  • Patent number: 4234672
    Abstract: Shifted photographic dyes which have good storage stability, yet rapidly unblock under processing conditions contain a blocked hydroxy group and a neighboring group that anchimerically assists the hydrolytic cleavage of the blocking group under processing conditions.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: November 18, 1980
    Assignee: Eastman Kodak Company
    Inventors: John A. Ford, Gregory J. Lestina
  • Patent number: 4218368
    Abstract: Aromatic nitro compounds are disclosed where the aromatic ring contains electron-withdrawing groups and said aromatic nitro compound is capable of undergoing intramolecular nucleophilic displacement after reduction of the nitro group. The compounds are especially useful in photographic elements where an image dye-providing material or a photographic reagent are released upon cleavage from the compound.
    Type: Grant
    Filed: July 26, 1978
    Date of Patent: August 19, 1980
    Assignee: Eastman Kodak Company
    Inventors: Jerald C. Hinshaw, Richard P. Henzel
  • Patent number: 4209328
    Abstract: In a dye image forming process in color photography comprising imagewise exposing a photographic element comprising a support and a light sensitive silver halide emulsion layer, and processing the exposed photographic element with an alkaline processing solution in the presence of a dye developer whereby a dye image corresponding to the imagewise exposure is formed by oxidation of said developer as a function of development of silver halide, the improvement which comprises the dye developer being a mono azo dye developer represented by the following formula:X--N.dbd.
    Type: Grant
    Filed: June 22, 1977
    Date of Patent: June 24, 1980
    Assignees: Konishiroku Photo Industry Co., Ltd., Mitsubishi Chemical Industries Limited
    Inventors: Yuzuru Sato, Ryuichiro Kobayashi, Naoshi Kunieda, Kazumasa Watanabe, Noboru Mizukura, Kenji Yoshida, Tadanori Oya
  • Patent number: 4207104
    Abstract: Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable 2-(2-heterocyclylazo)-1-naphthol dye moiety which contains a nitrogen atom adjacent to the point of attachment to the azo linkage. The compound contains a ballasted carrier moiety which is capable of releasing the diffusible azo dye under alkaline conditions. The dye is transferred imagewise to an image-receiving layer where it is contacted with metal ions to form a metal-complexed azo dye transfer image of excellent stability.
    Type: Grant
    Filed: January 9, 1979
    Date of Patent: June 10, 1980
    Assignee: Eastman Kodak Company
    Inventors: Derek D. Chapman, E-Ming Wu
  • Patent number: 4206139
    Abstract: Novel benzaldehydes of the formula: ##STR1## Where n.sup.1 is the integer 1-8 and each OR.sup.1 group is hydroxy or a protective group which can be converted or removed to provide the dihydroxyphenyl moiety.The benzaldehydes are particularly useful as intermediates in the preparation of yellow azomethine dye developers.
    Type: Grant
    Filed: September 27, 1978
    Date of Patent: June 3, 1980
    Assignee: Polaroid Corporation
    Inventors: Elbert M. Idelson, Charles E. Jandrue
  • Patent number: 4199359
    Abstract: A novel screen stencil comprising a screening material coated with a photo-swellable material, as well as a method of preparing and process of using same, are disclosed.
    Type: Grant
    Filed: December 16, 1974
    Date of Patent: April 22, 1980
    Assignee: Xerox Corporation
    Inventors: John W. Weigl, Carl Brynko
  • Patent number: 4195993
    Abstract: Cyan azo dye-providing compounds have the formula: ##STR1## wherein: R.sup.1 is selected from the group consisting of aryl, alkyl or NR.sup.11 R.sup.12 wherein R.sup.11 is alkyl or aryl and R.sup.12 is alkyl, or R.sup.11 and R.sup.12, taken together with the nitrogen atom to which they are attached, is a heterocyclic group;X is --CO-- or --SO.sub.2 --;R.sup.3 is --COOH or --CAR and is attached in the meta or para position to X in the benzene ring;R is alkyl; ##STR2## or can be taken together with R and the nitrogen atom to which it is attached to form a heterocyclic ring unsubstituted or substituted with a carboxy group; andCAR is a carrier moiety which, as a function of oxidation under alkaline conditions, releases a diffusible dye, with the proviso that the compound contains at least one CAR group and, excepting when R and R.sup.2 form a heterocyclic group and X is --SO.sub.2 --, must contain at least one carboxy group.
    Type: Grant
    Filed: August 17, 1978
    Date of Patent: April 1, 1980
    Assignee: Eastman Kodak Company
    Inventors: Kenneth N. Kilminster, Colin Holstead
  • Patent number: 4174221
    Abstract: Novel yellow 2:1 chrome complexed dye developer particularly useful in photographic products and processes are presented by this invention. The novel 2:1 chrome complexed dye developers have the following structure: ##STR1## where each A is a phenyl radical; each B is a phenyl or nitrogen containing heterocylic radical; Y is a silver halide developing substituent; each n is 0 or 1 but at least one n must be 1; R is N or CH; R.sup.1 is ##STR2## if R is N but R.sup.1 is --O--if R is CH and X is a cation.
    Type: Grant
    Filed: September 23, 1977
    Date of Patent: November 13, 1979
    Assignee: Polaroid Corporation
    Inventor: Elbert M. Idelson