GB670799A - Improvements in and relating to photographic silver halide emulsions - Google Patents

Improvements in and relating to photographic silver halide emulsions

Info

Publication number
GB670799A
GB670799A GB16986/49A GB1698649A GB670799A GB 670799 A GB670799 A GB 670799A GB 16986/49 A GB16986/49 A GB 16986/49A GB 1698649 A GB1698649 A GB 1698649A GB 670799 A GB670799 A GB 670799A
Authority
GB
United Kingdom
Prior art keywords
tetrahydrofurfuryl
bromide
prepared
methylbenzthiazole
toluenesulphonate
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
GB16986/49A
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 GB670799A publication Critical patent/GB670799A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/02Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups
    • C09B23/06Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups three >CH- groups, e.g. carbocyanines
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
GB16986/49A 1948-06-30 1949-06-27 Improvements in and relating to photographic silver halide emulsions Expired GB670799A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE670799X 1948-06-30

Publications (1)

Publication Number Publication Date
GB670799A true GB670799A (en) 1952-04-23

Family

ID=3877429

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16986/49A Expired GB670799A (en) 1948-06-30 1949-06-27 Improvements in and relating to photographic silver halide emulsions

Country Status (2)

Country Link
GB (1) GB670799A (cs)
NL (1) NL72987C (cs)

Also Published As

Publication number Publication date
NL72987C (cs)

Similar Documents

Publication Publication Date Title
GB534140A (en) Improvements in and relating to photographic emulsions and layers, and the manufacture of dyes for use therein and intermediates for such manufacture
GB670799A (en) Improvements in and relating to photographic silver halide emulsions
GB1115613A (en) Photographic silver halide materials
GB700734A (en) Improvements in sensitized photographic emulsions and in sensitizing dyes therefor
GB627521A (en) Cyanine dyes and photographic emulsion containing same
GB649725A (en) Process for the manufacture of 2-methyl-5-phenylbenzthiazole, methine dyes and sensitized photographic emulsions
GB721203A (en) Process for sensitizing and supersensitizing photographic emulsions
GB636885A (en) Photographic emulsions
GB685390A (en) Improvements in or relating to the sensitization and supersensitization of photographic emulsions
GB400951A (en) Sensitising silver halide emulsion layers
GB656607A (en) Improvements in dyes for use in photographic materials
GB611556A (en) Xanthylium dye salts as filter and anti-halation dyes in photographic materials
GB430357A (en) Process for sensitising photographic silver halide emulsions
GB604217A (en) Improvements in or relating to cyanine dyestuffs and to photographic silver halide emulsions sensitised therewith
GB468755A (en) Manufacture of carbocyanine dyestuffs for sensitising photographic emulsions
GB571077A (en) Improvements in cyanine dyes and in intermediates therefor, and in photographic emulsions sensitized with the dyes
GB855686A (en) Cyanine dyes and silver halide emulsions sensitised therewith
GB595784A (en) Improvements in or relating to cyanine dyestuffs
GB418157A (en) Improved process of sensitising silver halide emulsion layers
GB968396A (en) Improvements in dye sensitized photographic emulsions
GB383486A (en) Improvements in light-sensitive silver halide emulsions
GB678626A (en) Improvements in or relating to carbocyanine dyes
GB955964A (en) Improvements in or relating to sensitized photographic emulsions and to new sensitizing dyes
GB620802A (en) Improvements in or relating to dyestuffs
GB597329A (en) Improvements in the manufacture of carbocyanine dyes and in photographic emulsions sensitized therewith