EP0909981A1 - Lichtempfindliche photographische Silberhalogenidmaterialien, die Zeolithe enthalten - Google Patents

Lichtempfindliche photographische Silberhalogenidmaterialien, die Zeolithe enthalten Download PDF

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Publication number
EP0909981A1
EP0909981A1 EP97203216A EP97203216A EP0909981A1 EP 0909981 A1 EP0909981 A1 EP 0909981A1 EP 97203216 A EP97203216 A EP 97203216A EP 97203216 A EP97203216 A EP 97203216A EP 0909981 A1 EP0909981 A1 EP 0909981A1
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EP
European Patent Office
Prior art keywords
silver halide
emulsion
layer
salt
solution
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97203216A
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English (en)
French (fr)
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EP0909981B1 (de
Inventor
Hubert c/o Agfa-Gevaert N.V. Vandenabeele
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agfa Gevaert NV
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Agfa Gevaert NV
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Filing date
Publication date
Application filed by Agfa Gevaert NV filed Critical Agfa Gevaert NV
Priority to DE69703157T priority Critical patent/DE69703157T2/de
Priority to EP97203216A priority patent/EP0909981B1/de
Priority to US09/167,725 priority patent/US5989797A/en
Priority to JP10289229A priority patent/JPH11202436A/ja
Publication of EP0909981A1 publication Critical patent/EP0909981A1/de
Application granted granted Critical
Publication of EP0909981B1 publication Critical patent/EP0909981B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/04—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/7614—Cover layers; Backing layers; Base or auxiliary layers characterised by means for lubricating, for rendering anti-abrasive or for preventing adhesion
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/0051—Tabular grain emulsions
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C2001/0854—Indium
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/09—Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising
    • G03C2001/097—Selenium
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/09—Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising
    • G03C2001/098—Tellurium
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/7614—Cover layers; Backing layers; Base or auxiliary layers characterised by means for lubricating, for rendering anti-abrasive or for preventing adhesion
    • G03C2001/7635—Protective layer
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/16—X-ray, infrared, or ultraviolet ray processes
    • G03C2005/168—X-ray material or process
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/16—X-ray, infrared, or ultraviolet ray processes

Definitions

  • the present invention relates to a rapidly processable light-sensitive silver halide light-sensitive photographic material. Moreover a method of preparing said material has been described.
  • a light-sensitive silver halide photographic material comprising a support and on one or both sides thereof at least one silver halide emulsion layer and a protective antistress layer as an outermost layer, characterized in that said silver halide emulsion layer(s) and/or said protective antistress layer comprise(s) at least one zeolite loaded with a photographically useful group.
  • Zeolites are hydrated metal aluminosilicate compounds with well-defined (tetrahedral) crystalline structures. Because zeolite crystals, both natural and synthetic, have a porous structure with connected channels extending through them, they have been employed as molecular sieves for selectively adsorbing molecules on the basis of size, shape and polarity. Natural zeolites are e.g. clinoptilite, chabazite and mordenite. From the 65 types of zeolite that are known nowadays the majority has a synthetic origin. Reactants in zeolite synthesis have been described e.g. in "Hydrothermal Chemistry of Zeolites" by R.M. Barrer FRS, 1982, Academic Press, London New York.
  • Differences in zeolite compositions are related with differing ratios of silica and aluminum, going from indefinite or 1:0 to 1:1, as in a lattice structure it is impossible to have two trivalent aluminum ions in an adjacent position.
  • Substitution of a tetravalent silicium ion by a trivalent aluminum ion brings about the presence of a less positive charge within the lattice structure of zeolite crystals.
  • a deficiency of positive ions should therefore be compensated by the presence of "neutralising" positive ions which are not incorporated in the lattice structure. Ion-exchanging properties are thus provided.
  • zeolites may have strongly differing properties as a consequence of their strongly differing balance between hydrophobic and hydrophilic properties of their crystal lattice: presence of low amounts of aluminum ions provides hydrophobic water-repelling lattices, whereas higher amounts of trivalent aluminum ions provide water-attracting hydrophilic lattices. Less hydrophilic zeolite lattices therefore act as molecular sieves, adsorbing dedicated molecules in a selective way.
  • the term "molecular sieves" was first introduced by J.W. McBain in 1932 in order to define porous solid materials acting as sieves on molecular scale. Adsorbing properties further depend on the dimensions of the molecules and of the pores of the zeolite sieves. It has e.g. been established that dimensions of zeolite pores are varying in the range from 0.4 to 4 nm.
  • Zeolites having exchanged cations or showing molecular adsorption should be considered as "loaded zeolites".
  • zeolites Especially in photographic materials, the presence of zeolites is unusual. Unexpectedly it has been found that its presence as a releasing agent for photographically useful compounds or for photographically useful precursor compounds is very suitable, wherein its release of the previously added zeolite loaded with water soluble salts of the said compounds makes synthesis and/or addition of the said compounds for silver halide photographic materials possible.
  • Zeolites provided as finely divided powders are easily loaded by addition of the said powder to aqueous solutions of e.g. group VIII metal ions as iron, cobalt, ruthenium, rhodium, palladium, osmium, iridium, platinum and gold ions.
  • group VIII metal ions as iron, cobalt, ruthenium, rhodium, palladium, osmium, iridium, platinum and gold ions.
  • zeolites loaded with group VIII metal ions it is possible to release these metal ions, present as a complex metal ion surrounded with suitable ligands, as a function of pH and ion strength, in order to incorporate them as a dopant in the silver halide crystals.
  • the said dopant or dopants are homogeneously or heterogeneously incorporated over the whole crystal volume of the silver halide crystals formed.
  • core-shell layered silver halide crystals different layers have a different halide composition, but it is also possible that heterogeneity is only caused by the presence of metal ions in the different layers of the silver halide crystals.
  • the said metal ions whether or not present as complex ions, can be the same or different in different layers of a multilayered silver halide crystal present. Concentrations in different layers of the said crystals present as laminae in multilayer form, may be the same or different, and may have a design, performed in order to direct electron trapping properties of the silver halide crystals at the surface or in the vicinity thereof.
  • the addition technique of zeolites, loaded with metal ion dopants is recommended as release of the said metal ion dopants is performed under perfectly controlled conditions. So this release can be triggered by pH, temperature, ion strenght, addition of competing cations, colloids, etc..
  • Zeolites are further easily loaded by addition of zeolite powder to protic solutions of iodide, bromide or chloride salts of alkaline earth metals, like ammonium, potassium or sodium iodide, bromide or chloride or to aprotic solutions of e.g. organic compounds releasing chloride, bromide or iodide.
  • iodide ions should be incorporated in the silver halide crystal lattice as e.g.
  • Zeolites are moreover easily loaded by addition of zeolite powder to aqueous solutions of salts of sulfur, selenium or tellurium, and in particular to labile salts of those chalcogen elements. This is particularly interesting with respect to applications in the chemical ripening, wherein sulphur, selenium and/or tellurium is (are) released from the loaded zeolites at a controlled reaction rate during the chemical ripening process, depending on addition time, pH, pAg, temperature, etc.. Moreover zeolites loaded with group VIII metal salts, and in particular with gold salts, are very useful in order to create development specks or the silver halide crystals to be developed in rapid processing.
  • zeolites loaded with iodide salts are e.g. added before addition of spectral sensitisers to the unripened, so-called “primitive emulsion" in order to promote adsorption of the said spectral sensitizer or sensitizers at the crystal surface.
  • zeolites loaded with aqueous soluble palladium salts is another application, wherein said zeolites are favourably added to coating solutions before coating, followed by drying.
  • addition of zeolites loaded with gold salts is further recommended, wherein said addition can proceed in the chemical ripening and/or in the preparation step of the coating solutions.
  • ultramicrocrystalline silver halide grains are prepared "in situ" by addition of zeolites loaded with aqueous soluble silver salts and zeolites loaded with aqueous soluble halide salts. Release of silver ions and halide ions leads to the generation "in situ” of the said ultramicrocrystalline silver halide. If in addition stable silver halide crystals are present in the reaction vessel said ultramicrocrystalline silver halides are deposited on the coarser grains, wherein the driving force is the physical ripening or so-called Ostwald ripening. In that way deposition of limited amounts of e.g.
  • fine silver iodide grains (however being not limited thereto) on host grains is possible, whether in form of a "closed" layer, in form of separate isles, uniformly distributed on e.g. main parallel ⁇ 111 ⁇ - or ⁇ 100 ⁇ -planes of the corresponding tabular grains, whether in form of protrusions or epitaxial depositions.
  • An improved spectral sensitization can be expected in that case in that a better adsorption of spectral sensitizers is observed and/or in that lower amounts of spectral sensitizer(s) are required in order to get the best fog to speed relationship. If lower amounts of spectral sensitizers are required this is particularly in favour of providing less residual colour, also called "stain", especially after rapid processing.
  • an additional advantage of the presence of zeolites, whether or not present as "loaded zeolites" in coated hydrophilic layers of silver halide photographic materials is their ability to reduce pressure sensitivity and thus to reduce the generation of fogging streaks, more particularly when materials coated from very thin coated layers are run in automatic procesing machines in rapid processing cycles, as e.g. processing cycles proceeding within a total processing time of from 20 up to 90 seconds, and more preferably from 30 up to 60 seconds, as in medical radiographic applications.
  • the zeolites are present in the light-sensitive silver halide emulsion layer(s).
  • preferred amounts in the silver halide emulsion layer(s) and/or protective antistress layer of a silver halide photographic material are in an amount of from 1 to 200 mg/m 2 and more preferably in an amount of from 10 to 100 mg/m 2 .
  • a material according to the present invention is overcoated with one or more protective antistress layer or layers wherein said antistress layer(s) comprise(s) a total amount of gelatin of less than 1.2 g/m 2 .
  • said material is a radiographic material, more preferably a medical X-ray material.
  • materials such as (medical and industrial) X-ray film materials, pre-sensitized plates, graphic art films and paper, offset plates, etc., may comprise (loaded or unloaded) zeolites.
  • an X-ray film material and, in particular, any film for medical diagnostic imaging may comprise said zeolites, wherein said film may be exposed with a laser directed by digitized data obtained after conversion of information captured by suitable means after exposure to radiation of part of the human body as described e.g. in EP-A 0 794 456 or exposed after conversion of X-rays by one or two intensifying light-emitting screen(s) brought into contact with the said film and wherein said film may comprise cubic and/or tabular silver halide crystals as described e.g. in EP-Applications Nos. 97200590 and 97200591, both filed March 1, 1997 and No. 97202169, filed July 11, 1997.
  • the said materials are composed of at least one light-sensitive silver halide emulsion layer comprising emulsion crystals comprising tabular ⁇ 111 ⁇ or ⁇ 100 ⁇ crystals.
  • said materials are X-ray materials, wherein the said X-ray materials are single-side or double-side coated materials. It is clear that the total processing time wherein the processing cycle is run after exposure with a suitable exposure source strongly depends on the amounts of silver coated into the light-sensitive silver halide emulsion layers.
  • materials suitable for rapid processing applications following the steps of developing, fixing, rinsing and drying should be run in a total processing time of from 30 up to 90 seconds. Especially in those circumstances the benifits offered by the present invention become available in the most expressive way.
  • a blue tinted, longitudinally stretched polyethylene terephthalate film support having a thickness of approximately 0.61 mm was subbed on both sides with a coating solution at a coverage of 130 m 2 per liter.
  • the layer was dried in a hot air stream whereafter the coated support was stretched transversally to 3.5 times its original width, at a temperature of about 110°C.
  • the final thickness of the film was 175 mm.
  • the film was then heat-set while being kept under tension at a temperature of 220°C for about 10 seconds. After heat setting the film was cooled. This subbing procedure resulted in the following layer composition per m 2 and per side:
  • a second subbing layer was further coated at a coverage of 30 m 2 per liter coating solution.
  • the coating solution was applied at 40 °C.
  • the layer was dried in a hot air stream at 130 °C during 2 minutes, resulting in the following layer composition per m 2 and per side:
  • the emulsion was divided in 4 parts. Coated afterwards in Material No. 1 the correspondingly numbered part 1 was chemically sensitized in the presence of anhydro-5,5'-dichloro-3,3'-bis(n.sulfobutyl)-9-ethyloxacarbocyanine hydroxide in an amount of 0.66 g per mole of silver, chloro auric acid, sodium thiosulphate and potassium thiocyanate in respective amounts (per mole of silver) of 0.35 mg, 1.70 mg and 136 mg in order to get an optimized fog-sensitivity relationship.
  • the pH of the said emulsion was adjusted at 5.15; the pAg at 7.00 at a temperature of 40°C.
  • Part 2 was chemically ripened with lowered amounts of sodium thiosulphate (50% of the original amount of 1.70 mg), but the dimethylselenoureum compound was added in an amount of 0.92 mg per mole of silver, whereas chloro auric acid was added to the coating solution in an amount increased up to 0.7 mg.
  • demineralized water To 800 ml of demineralized water the following ingredients were added: 44 g of gelatin; 0.92 g of polymethylmethacrylate (average particle diameter : 3.5 ⁇ m); 0.3 g of ammoniumperfluorocaprylate; 0.752 g of C 17 H 15 -CO-NH-(CH 2 -CH 2 -O-) 17 -H and 4 g of formaldehyde.
  • Demineralized water was added in order to get the desired wet coating thickness and gelatin per m 2 .
  • Materials 1 to 4 were obtained by coating simultaneously the emulsion layer and the protective layer at both sides of the support making use of the coating solutions for the emulsion and protective layer, held at 38°C, the composition of which has been described hereinbefore, and dried under controlled humidity and temperature conditions, never exceeding a temperature of 30 °C.
  • the emulsion and protective layer were coated simultaneously by means of the slide hopper technique with the protective layer on top. Before drying the thicknesses of the emulsion layer and protective layer were 44 and 25 ⁇ m respectively.
  • Per m 2 and per side the emulsion layer was containing about 3.75 g of silver, expressed as an equivalent amount of silver nitrate and 1.87 g of gelatin.
  • the protective antistress layer was containing 1.1 g of gelatin.
  • Samples of the coated materials Nos. 1-4 were preserved for 36 hours at a temperature of 57°C and at a relative humidity of 34%. The said samples were exposed with green light of 540 nm during 0.1 seconds using a continuous wedge.
  • composition of the concentrated part water: 200 ml; potassium bromide: 12 g; potassium sulphite (65% solution): 249 g; ethylenediaminetetraacetic acid, sodium salt,trihydrate: 9.6 g; hydroquinone: 106 g; 5-methylbenzotriazole: 0.076 g; 1-phenyl-5-mercaptotetrazole: 0.040 g; sodiumtetraborate (decahydrate): 70 g; potassium carbonate: 38 g; potassium hydroxide: 49 g; diethylene glycol: 111 g; potassium iodide: 0.03 g; 4-hydroxymethyl-4-methyl-1-phenyl-3-pyrazolidine-1-one: 8.15 g; water to make 1 liter.
  • the pH was adjusted to 11.15 at 25°C with potassium hydroxide.
  • composition of the fixer is Composition of the fixer:
  • the pH was adjusted with acetic acid to 5.30 at 25°C.

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
EP97203216A 1997-10-15 1997-10-15 Lichtempfindliche photographische Silberhalogenidmaterialien, die Zeolithe enthalten Expired - Lifetime EP0909981B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE69703157T DE69703157T2 (de) 1997-10-15 1997-10-15 Lichtempfindliche photographische Silberhalogenidmaterialien, die Zeolithe enthalten
EP97203216A EP0909981B1 (de) 1997-10-15 1997-10-15 Lichtempfindliche photographische Silberhalogenidmaterialien, die Zeolithe enthalten
US09/167,725 US5989797A (en) 1997-10-15 1998-10-07 Light-sensitive silver halide photographic materials comprising zeolites
JP10289229A JPH11202436A (ja) 1997-10-15 1998-10-12 ゼオライトを含有する感光性ハロゲン化銀写真材料

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97203216A EP0909981B1 (de) 1997-10-15 1997-10-15 Lichtempfindliche photographische Silberhalogenidmaterialien, die Zeolithe enthalten

Publications (2)

Publication Number Publication Date
EP0909981A1 true EP0909981A1 (de) 1999-04-21
EP0909981B1 EP0909981B1 (de) 2000-09-20

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Application Number Title Priority Date Filing Date
EP97203216A Expired - Lifetime EP0909981B1 (de) 1997-10-15 1997-10-15 Lichtempfindliche photographische Silberhalogenidmaterialien, die Zeolithe enthalten

Country Status (3)

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EP (1) EP0909981B1 (de)
JP (1) JPH11202436A (de)
DE (1) DE69703157T2 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0964298A1 (de) * 1998-06-10 1999-12-15 Konica Corporation Photographische Silberhalogenidemulsion
US6649330B2 (en) 2001-12-28 2003-11-18 Eastman Kodak Company Silver halide imaging element containing sequestered silver ions
US6689335B1 (en) 2002-12-19 2004-02-10 Eastman Kodak Company Silver ion sequester and release agent
CN114057211A (zh) * 2020-07-27 2022-02-18 中国石油化工股份有限公司 一种氧化铝材料的制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119946A (en) * 1982-05-08 1983-11-23 Agfa Gevaert Ag Image receiving element in a dye diffusion transfer material
EP0644455A1 (de) * 1993-09-17 1995-03-22 Agfa-Gevaert N.V. Photographisches lichtempfindliches Material zur Verwendung für schnelle Verarbeitung
EP0644454A1 (de) * 1993-09-17 1995-03-22 Agfa-Gevaert N.V. Photographisches lichtempfindliches Material mit konservierten antistatischen Eigenschaften
US5447834A (en) * 1991-10-18 1995-09-05 Fuji Photo Film Co., Ltd. Color diffusion transfer photographic material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119946A (en) * 1982-05-08 1983-11-23 Agfa Gevaert Ag Image receiving element in a dye diffusion transfer material
US5447834A (en) * 1991-10-18 1995-09-05 Fuji Photo Film Co., Ltd. Color diffusion transfer photographic material
EP0644455A1 (de) * 1993-09-17 1995-03-22 Agfa-Gevaert N.V. Photographisches lichtempfindliches Material zur Verwendung für schnelle Verarbeitung
EP0644454A1 (de) * 1993-09-17 1995-03-22 Agfa-Gevaert N.V. Photographisches lichtempfindliches Material mit konservierten antistatischen Eigenschaften

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0964298A1 (de) * 1998-06-10 1999-12-15 Konica Corporation Photographische Silberhalogenidemulsion
US6649330B2 (en) 2001-12-28 2003-11-18 Eastman Kodak Company Silver halide imaging element containing sequestered silver ions
US6689335B1 (en) 2002-12-19 2004-02-10 Eastman Kodak Company Silver ion sequester and release agent
CN114057211A (zh) * 2020-07-27 2022-02-18 中国石油化工股份有限公司 一种氧化铝材料的制备方法
CN114057211B (zh) * 2020-07-27 2023-07-28 中国石油化工股份有限公司 一种氧化铝材料的制备方法

Also Published As

Publication number Publication date
DE69703157D1 (de) 2000-10-26
EP0909981B1 (de) 2000-09-20
DE69703157T2 (de) 2001-05-17
JPH11202436A (ja) 1999-07-30

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