GB686733A - Process for supersensitizing photographic emulsions - Google Patents

Process for supersensitizing photographic emulsions

Info

Publication number
GB686733A
GB686733A GB11297/51A GB1129751A GB686733A GB 686733 A GB686733 A GB 686733A GB 11297/51 A GB11297/51 A GB 11297/51A GB 1129751 A GB1129751 A GB 1129751A GB 686733 A GB686733 A GB 686733A
Authority
GB
United Kingdom
Prior art keywords
thiacyclohexane
prepared
dimethylaminobenzal
dioxide
supersensitizing
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
GB11297/51A
Other languages
English (en)
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.)
Gevaert Photo Producten NV
Original Assignee
Gevaert Photo Producten NV
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 Gevaert Photo Producten NV filed Critical Gevaert Photo Producten NV
Publication of GB686733A publication Critical patent/GB686733A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08Sensitivity-increasing substances
    • G03C1/10Organic substances
    • G03C1/12Methine and polymethine dyes
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08Sensitivity-increasing substances
    • G03C1/28Sensitivity-increasing substances together with supersensitising substances

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Hydrogenated Pyridines (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Plural Heterocyclic Compounds (AREA)
GB11297/51A 1950-05-13 1951-05-15 Process for supersensitizing photographic emulsions Expired GB686733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR872912X 1950-05-13

Publications (1)

Publication Number Publication Date
GB686733A true GB686733A (en) 1953-01-28

Family

ID=9359117

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11297/51A Expired GB686733A (en) 1950-05-13 1951-05-15 Process for supersensitizing photographic emulsions

Country Status (4)

Country Link
DE (1) DE872912C (enrdf_load_stackoverflow)
FR (1) FR60571E (enrdf_load_stackoverflow)
GB (1) GB686733A (enrdf_load_stackoverflow)
NL (1) NL72868C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860983A (en) * 1956-05-21 1958-11-18 Eastman Kodak Co Photographic emulsions containing polymethine dyes and ketone compounds
US2860984A (en) * 1956-05-21 1958-11-18 Eastman Kodak Co Supersensitized photographic emulsions containing polymethine dyes and ketones

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860983A (en) * 1956-05-21 1958-11-18 Eastman Kodak Co Photographic emulsions containing polymethine dyes and ketone compounds
US2860984A (en) * 1956-05-21 1958-11-18 Eastman Kodak Co Supersensitized photographic emulsions containing polymethine dyes and ketones

Also Published As

Publication number Publication date
NL72868C (enrdf_load_stackoverflow)
FR60571E (fr) 1954-11-09
DE872912C (de) 1953-04-09

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