GB1067958A - Sensitization of photographic silver halide emulsions - Google Patents

Sensitization of photographic silver halide emulsions

Info

Publication number
GB1067958A
GB1067958A GB4110264A GB4110264A GB1067958A GB 1067958 A GB1067958 A GB 1067958A GB 4110264 A GB4110264 A GB 4110264A GB 4110264 A GB4110264 A GB 4110264A GB 1067958 A GB1067958 A GB 1067958A
Authority
GB
United Kingdom
Prior art keywords
sensitization
silver halide
halide emulsions
photographic silver
photographic
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
GB4110264A
Inventor
August Randolph
Wilhelm Saleck
Herbert Grabhofer
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
Original Assignee
Agfa AG
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 Agfa AG filed Critical Agfa AG
Publication of GB1067958A publication Critical patent/GB1067958A/en
Expired legal-status Critical Current

Links

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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G03C5/305—Additives other than developers
    • 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
    • G03C1/043—Polyalkylene oxides; Polyalkylene sulfides; Polyalkylene selenides; Polyalkylene tellurides
    • 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
    • G03C1/10—Organic substances

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The compound of the formula <FORM:1067958/C2/1> is made by heating N : N1-dimethylthiourea and 1 :4-dichlorobutane in n-butanol in the presence of NaI.
GB4110264A 1963-10-12 1964-10-08 Sensitization of photographic silver halide emulsions Expired GB1067958A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA44295A DE1189381B (en) 1963-10-12 1963-10-12 Methods of increasing the sensitivity of photographic silver halide emulsions

Publications (1)

Publication Number Publication Date
GB1067958A true GB1067958A (en) 1967-05-10

Family

ID=6934115

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4110264A Expired GB1067958A (en) 1963-10-12 1964-10-08 Sensitization of photographic silver halide emulsions

Country Status (4)

Country Link
BE (1) BE654253A (en)
CH (1) CH458920A (en)
DE (1) DE1189381B (en)
GB (1) GB1067958A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3203554A1 (en) * 1981-02-03 1982-10-14 Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa METHOD FOR PRODUCING A PHOTOGRAPHIC IMAGE
GB8803281D0 (en) * 1988-02-12 1988-03-09 Ciba Geigy Ag Development accelerators

Also Published As

Publication number Publication date
CH458920A (en) 1968-06-30
DE1189381B (en) 1965-03-18
BE654253A (en) 1965-04-12

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