GB651451A - Improvements in and relating to the sensitising of photographic emulsions - Google Patents

Improvements in and relating to the sensitising of photographic emulsions

Info

Publication number
GB651451A
GB651451A GB24885/47D GB2488547D GB651451A GB 651451 A GB651451 A GB 651451A GB 24885/47 D GB24885/47 D GB 24885/47D GB 2488547 D GB2488547 D GB 2488547D GB 651451 A GB651451 A GB 651451A
Authority
GB
United Kingdom
Prior art keywords
trimethylene
prepared
iodide
bromide
ethyl
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
GB24885/47D
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 GB651451A publication Critical patent/GB651451A/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
    • G03C1/28Sensitivity-increasing substances together with supersensitising substances
    • G03C1/29Sensitivity-increasing substances together with supersensitising substances the supersensitising mixture being solely composed of dyes ; Combination of dyes, even if the supersensitising effect is not explicitly disclosed
    • 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
    • G03C1/14Methine and polymethine dyes with an odd number of CH groups

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)
  • Plural Heterocyclic Compounds (AREA)
GB24885/47D 1941-03-20 1945-09-25 Improvements in and relating to the sensitising of photographic emulsions Expired GB651451A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE651451X 1941-03-20

Publications (1)

Publication Number Publication Date
GB651451A true GB651451A (en) 1951-04-04

Family

ID=6581541

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24885/47D Expired GB651451A (en) 1941-03-20 1945-09-25 Improvements in and relating to the sensitising of photographic emulsions

Country Status (3)

Country Link
BE (1) BE444783A (en:Method)
FR (1) FR891013A (en:Method)
GB (1) GB651451A (en:Method)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2920962A (en) * 1958-01-10 1960-01-12 Du Pont Photographic elements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2920962A (en) * 1958-01-10 1960-01-12 Du Pont Photographic elements

Also Published As

Publication number Publication date
BE444783A (en:Method)
FR891013A (fr) 1944-02-24

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