GB681432A - Improvements in and relating to a process for supersensitising photographic silver halide emulsions - Google Patents

Improvements in and relating to a process for supersensitising photographic silver halide emulsions

Info

Publication number
GB681432A
GB681432A GB18120/49A GB1812049A GB681432A GB 681432 A GB681432 A GB 681432A GB 18120/49 A GB18120/49 A GB 18120/49A GB 1812049 A GB1812049 A GB 1812049A GB 681432 A GB681432 A GB 681432A
Authority
GB
United Kingdom
Prior art keywords
supersensitising
relating
silver halide
halide emulsions
photographic silver
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
GB18120/49A
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 GB681432A publication Critical patent/GB681432A/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
    • 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
    • G03C1/12—Methine and polymethine dyes
    • 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
    • G03C1/28—Sensitivity-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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
GB18120/49A 1948-07-23 1949-07-08 Improvements in and relating to a process for supersensitising photographic silver halide emulsions Expired GB681432A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR810458X 1948-07-23

Publications (1)

Publication Number Publication Date
GB681432A true GB681432A (en) 1952-10-22

Family

ID=9255976

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18120/49A Expired GB681432A (en) 1948-07-23 1949-07-08 Improvements in and relating to a process for supersensitising photographic silver halide emulsions

Country Status (4)

Country Link
DE (1) DE810458C (enrdf_load_stackoverflow)
FR (1) FR969505A (enrdf_load_stackoverflow)
GB (1) GB681432A (enrdf_load_stackoverflow)
NL (1) NL72557C (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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4415621A (en) * 1980-02-25 1983-11-15 Eastman Kodak Company Use of α,α-bis(dialkylaminobenzylidene) ketone dyes in optical recording elements

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
NL72557C (enrdf_load_stackoverflow)
FR969505A (fr) 1950-12-21
DE810458C (de) 1951-08-09

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