GB1031902A - Improvements in silver halide photography - Google Patents

Improvements in silver halide photography

Info

Publication number
GB1031902A
GB1031902A GB46344/62A GB4634462A GB1031902A GB 1031902 A GB1031902 A GB 1031902A GB 46344/62 A GB46344/62 A GB 46344/62A GB 4634462 A GB4634462 A GB 4634462A GB 1031902 A GB1031902 A GB 1031902A
Authority
GB
United Kingdom
Prior art keywords
silver halide
mercapto
phenyl
silver
compound
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.)
Expired
Application number
GB46344/62A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority claimed from NL6408533A external-priority patent/NL6408533A/xx
Publication of GB1031902A publication Critical patent/GB1031902A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
    • C07D263/52—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings condensed with carbocyclic rings or ring systems
    • C07D263/54—Benzoxazoles; Hydrogenated benzoxazoles
    • C07D263/58—Benzoxazoles; Hydrogenated benzoxazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 2
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C391/00—Compounds containing selenium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
    • C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
    • C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D277/32—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
    • C07D277/60—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings condensed with carbocyclic rings or ring systems
    • C07D277/62—Benzothiazoles
    • C07D277/68—Benzothiazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 2
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D293/00—Heterocyclic compounds containing rings having nitrogen and selenium or nitrogen and tellurium, with or without oxygen or sulfur atoms, as the ring hetero atoms
    • C07D293/10—Heterocyclic compounds containing rings having nitrogen and selenium or nitrogen and tellurium, with or without oxygen or sulfur atoms, as the ring hetero atoms condensed with carbocyclic rings or ring systems
    • C07D293/12—Selenazoles; Hydrogenated selenazoles
    • 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
    • G03C1/492—Photosoluble emulsions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Thiazole And Isothizaole Compounds (AREA)

Abstract

1,031,902. Photographic silver halide materials and processes. E.I. DUPONT DE NEMOURS & CO. Dec. 7, 1962 [Nov. 8, 1962], No. 46344/62. Heading G2C. Photographic elements which give positive images on exposure followed by treatment with a silver halide solvent comprise a silver halide emulsion containing an organic compound the nature and amount of which is determined by tests as set out in the Specification. In particular, the organic compound may be a carbocyclic aromatic mercaptan, a carbocyclic aromatic selenium compound in which the selenium is present as an -SeH group, or 2-mercapto-4-phenylthiazole. In general the amounts are said to be between 0.125 and 314g. per mole of silver halide. Mercaptano which comply with the tests are thiophenol which may be substituted with a chloro, bromo, amino, nitro, methyl, t-butyl or nonyl group #-Naphthothiol, thiosalicylic acid and p-t-butyl-o-thiocresol. The selenium compound may be seleno-phenol. The above compounds are used in specified amounts from 0.01- 0.0001 g. per 25 mg of silver halide. Seleno-urea is said to be unsuitable. In the examples, a film base coated with a silver chlorobromide or bromoiodide emulsion is bathed in an aqueous alchoholic solution of the compound, dried and exposed. Treatment with an aqueous sodium thiosulphate solution followed by bathing in a fogging developer containing 1 -phenyl-4 -methyl-3-pyrazolidone, hydroquinone and potassium iodide gives a positive image. The pH of the silver halide solvent solution may be acid or alkaline, and potassium thiocyanate containing sodium carbonate may be used. In other examples, 2-mercapto-4-phenyl-thiazole is added to silver halide emulsions in amounts varying from 0.4 to 5g. per mole of silver halide. After exposure and treatment with thiosulphate, the emulsion is flashed with white light and the image reduced chemically to silver. In example X, a binder-free silver halide layer is prepared by vapour deposition and bathed in an ethanol-water solution of 2- mercapto-4-phenyl-thiazole.
GB46344/62A 1961-12-08 1962-12-07 Improvements in silver halide photography Expired GB1031902A (en)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
US15813261A 1961-12-08 1961-12-08
US236417A US3155515A (en) 1961-12-08 1962-11-08 Photographic products
US236412A US3155514A (en) 1961-12-08 1962-11-08 Photographic compositions and elements
US236420A US3155507A (en) 1961-12-08 1962-11-08 Photographic processes
US236418A US3155516A (en) 1961-12-08 1962-11-08 Photographic products
US317824A US3155519A (en) 1961-12-08 1963-10-21 Photographic compositions, layers and elements
NL6408533A NL6408533A (en) 1961-12-08 1964-07-24
US388919A US3418124A (en) 1961-12-08 1964-08-11 High contrast direct positive by using active cations in silver halide solvent
US390460A US3384485A (en) 1961-12-08 1964-08-18 Silver halide emulsions photosolubilized with optical sensitizing dyes and silver mercaptides
US403661A US3284206A (en) 1961-12-08 1964-10-13 Image yielding layers

Publications (1)

Publication Number Publication Date
GB1031902A true GB1031902A (en) 1966-06-02

Family

ID=27580572

Family Applications (4)

Application Number Title Priority Date Filing Date
GB46345/62A Expired GB1031903A (en) 1961-12-08 1962-12-07 Photographic silver halide materials and processes
GB46344/62A Expired GB1031902A (en) 1961-12-08 1962-12-07 Improvements in silver halide photography
GB34231/65A Expired GB1111226A (en) 1961-12-08 1965-08-10 Improvements relating to the production of images
GB43289/65A Expired GB1124772A (en) 1961-12-08 1965-10-12 Improvements in silver halide photography

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB46345/62A Expired GB1031903A (en) 1961-12-08 1962-12-07 Photographic silver halide materials and processes

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB34231/65A Expired GB1111226A (en) 1961-12-08 1965-08-10 Improvements relating to the production of images
GB43289/65A Expired GB1124772A (en) 1961-12-08 1965-10-12 Improvements in silver halide photography

Country Status (5)

Country Link
US (8) US3155507A (en)
BE (1) BE670823A (en)
DE (5) DE1261397B (en)
FR (1) FR89467E (en)
GB (4) GB1031903A (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR89467E (en) * 1961-12-08
US3379529A (en) * 1963-02-28 1968-04-23 Eastman Kodak Co Photographic inhibitor-releasing developers
US3368898A (en) * 1963-10-17 1968-02-13 Gen Aniline & Film Corp Autopositive film and paper and emulsions therefor
DE1281842B (en) * 1964-06-22 1968-10-31 Du Pont Photographic recording material with a photo-soluble layer
US3341574A (en) * 1964-09-18 1967-09-12 Celanese Corp Di-(neopentylglycol mononeoheptanoate)azelate
US3407067A (en) * 1964-10-13 1968-10-22 Du Pont Photosolubilization with mercaptooxazoles
US3368899A (en) * 1964-10-13 1968-02-13 Du Pont Emulsion layers and elements
US3394005A (en) * 1964-10-16 1968-07-23 Du Pont Increased development rate of photosoluble silver halide emulsions by the action of water-soluble iodide
US3377169A (en) * 1965-03-30 1968-04-09 Du Pont Copper thallium and lead halide and pseudohalides photosoluble crystals
US3458318A (en) * 1965-08-02 1969-07-29 Eastman Kodak Co Supersensitized silver halide emulsions
US3451819A (en) * 1965-08-09 1969-06-24 Du Pont Photosoluble silver halide emulsion made spontaneously developable with amine boranes
US3464822A (en) * 1965-09-13 1969-09-02 Du Pont Process for making electrically conductive images
GB1178800A (en) * 1966-03-01 1970-01-21 Minnesota Mining & Mfg Improvements in or relating to Copying Materials
US3486895A (en) * 1966-04-29 1969-12-30 Du Pont Process for obtaining artistic effects in photosoluble direct positive silver halide emulsions
US3495983A (en) * 1967-06-23 1970-02-17 Du Pont Photosolubilization process using phenols as dmax maintainers
US3628956A (en) * 1967-12-08 1971-12-21 Du Pont Process for preparing direct positive images by photosolubilization
US3862352A (en) * 1968-04-16 1975-01-21 Itek Corp Photographically prepared electrical circuits wherein the photosensitive material is a photoconductor
US3647439A (en) * 1968-10-01 1972-03-07 Eastman Kodak Co Photographic element, composition and process
US3649289A (en) * 1968-10-21 1972-03-14 Eastman Kodak Co Photographic materials
US3653899A (en) * 1968-11-12 1972-04-04 Eastman Kodak Co Photographic materials and processes
US3640717A (en) * 1969-06-05 1972-02-08 Itek Corp Photographic reversal process employing organic mercaptan compounds
US3652279A (en) * 1969-07-18 1972-03-28 Du Pont Nitrogen-containing dmax maintainers for use in photosoluble emulsions
US4014699A (en) * 1973-05-17 1977-03-29 Ciba-Geigy Ag Preparation for the processing of photographic materials
GB1548395A (en) * 1975-05-29 1979-07-11 Eastman Kodak Co Photographic materials
GB1580212A (en) * 1976-03-29 1980-11-26 Agfa Gevaert Antifogging and/or stabilizing compounds for silver halide photography
JPS53134430A (en) * 1977-04-27 1978-11-24 Mitsubishi Paper Mills Ltd Silver halide photosensitive materials for multiilayer color photograph
DE2931690A1 (en) * 1979-08-04 1981-02-19 Agfa Gevaert Ag PHOTOGRAPHIC EMULSION, METHOD FOR THE PRODUCTION AND PHOTOGRAPHIC MATERIALS

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE388620A (en) * 1926-05-21
DE548323C (en) * 1929-02-25 1932-04-09 Kodak Akt Ges Method of stabilizing a silver halide emulsion
US2025876A (en) * 1931-04-11 1935-12-31 Du Pont Preparation of aryl-amines
US2131038A (en) * 1932-05-26 1938-09-27 Eastman Kodak Co Photographic emulsion containing alkyl quaternary salts of thiazoles and the like asantifoggants
GB477628A (en) * 1936-08-14 1938-01-04 Albert Steigmann Method of preventing yellow stain in photographs
US2214446A (en) * 1938-05-10 1940-09-10 Gen Aniline & Film Corp Photographic development of silver halide layers
US2195150A (en) * 1938-06-16 1940-03-26 Ilford Ltd Stabilization of photographic emulsions
US2520358A (en) * 1948-09-04 1950-08-29 Eastman Kodak Co Heterocyclic bis acetones, thioacetones, and selenoacetones
US2710256A (en) * 1951-04-25 1955-06-07 Gen Aniline & Film Corp Photographic print-out process
BE511060A (en) * 1951-04-30
US2985661A (en) * 1956-02-06 1961-05-23 American Cyanamid Co Preparation of 2(omicron-aminophenyl)-benzimidazole
BE555103A (en) * 1956-02-18
BE557661A (en) * 1956-05-23
US3038800A (en) * 1957-12-19 1962-06-12 Eastman Kodak Co Photopolymerization of olefinicallyunsaturated monomers by silver halides
BE582161A (en) * 1958-08-29
BE584391A (en) * 1958-11-07
BE602317A (en) * 1960-04-11
US3046130A (en) * 1960-05-12 1962-07-24 Gen Aniline & Film Corp Photographic materials containing a chemical sensitizer
FR89467E (en) * 1961-12-08
US3155518A (en) * 1963-10-21 1964-11-03 Du Pont Silver halide compositions, layers and elements

Also Published As

Publication number Publication date
US3418124A (en) 1968-12-24
GB1031903A (en) 1966-06-02
US3284206A (en) 1966-11-08
US3384485A (en) 1968-05-21
US3155516A (en) 1964-11-03
DE1226877B (en) 1966-10-13
DE1293581B (en) 1969-04-24
US3155507A (en) 1964-11-03
DE1294186B (en) 1969-09-11
DE1293582B (en) 1969-04-24
US3155514A (en) 1964-11-03
DE1261397B (en) 1968-02-15
GB1111226A (en) 1968-04-24
US3155515A (en) 1964-11-03
FR89467E (en)
US3155519A (en) 1964-11-03
BE670823A (en) 1966-04-12
GB1124772A (en) 1968-08-21

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