GB1351149A - Spectrally sensitized silver halide photographic emulsions - Google Patents

Spectrally sensitized silver halide photographic emulsions

Info

Publication number
GB1351149A
GB1351149A GB4427871A GB4427871A GB1351149A GB 1351149 A GB1351149 A GB 1351149A GB 4427871 A GB4427871 A GB 4427871A GB 4427871 A GB4427871 A GB 4427871A GB 1351149 A GB1351149 A GB 1351149A
Authority
GB
United Kingdom
Prior art keywords
silver halide
photographic emulsions
halide photographic
sensitized silver
spectrally sensitized
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
GB4427871A
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of GB1351149A publication Critical patent/GB1351149A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/14—Styryl dyes
    • C09B23/145—Styryl dyes the ethylene chain carrying an heterocyclic residue, e.g. heterocycle-CH=CH-C6H5
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/0008—Methine or polymethine dyes, e.g. cyanine dyes substituted on the polymethine chain
    • C09B23/005—Methine or polymethine dyes, e.g. cyanine dyes substituted on the polymethine chain the substituent being a COOH and/or a functional derivative thereof
    • C09B23/0058—Methine or polymethine dyes, e.g. cyanine dyes substituted on the polymethine chain the substituent being a COOH and/or a functional derivative thereof the substituent being CN
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/10—The polymethine chain containing an even number of >CH- groups
    • C09B23/107—The polymethine chain containing an even number of >CH- groups four >CH- groups
    • 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
    • G03C1/24—Styryl dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

1351149 Sensitized silver halide photographic emulsions FUJI PHOTO FILM CO Ltd 25 Jan 1973 [24 Sept 1970] 3853/73 Heading G2C A silver halide emulsion having increased sensitivity in the inherently sensitive region of the silver halide comprises silver halide crystals having a mean grain diameter of not more than 0À18 microns, or at least 95% by number of which have grain diameters not exceeding 0À2 microns, and at least one styryl base of formula: in which Z completes an optionally substituted 5- or 6- membered heterocyclic ring, R 1 and R 2 each represent lower alkyl (1-4C), L is optionally substituted methine and n is 1 or 2.
GB4427871A 1970-09-24 1971-09-22 Spectrally sensitized silver halide photographic emulsions Expired GB1351149A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8364870A JPS4946931B1 (en) 1970-09-24 1970-09-24

Publications (1)

Publication Number Publication Date
GB1351149A true GB1351149A (en) 1974-04-24

Family

ID=13808257

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4427871A Expired GB1351149A (en) 1970-09-24 1971-09-22 Spectrally sensitized silver halide photographic emulsions

Country Status (5)

Country Link
JP (1) JPS4946931B1 (en)
CA (1) CA989237A (en)
DE (1) DE2147586A1 (en)
FR (1) FR2108387A5 (en)
GB (1) GB1351149A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3240530B2 (en) * 1993-02-08 2001-12-17 コニカ株式会社 Silver halide photographic materials
AU2003242233A1 (en) * 2002-06-12 2003-12-31 Bf Research Institute, Inc. Probe compound for image diagnosis of disease with amyloid accumulation, compound for staining age spots/diffuse age spots, and remedy for disease with amyloid accumulation
WO2022171935A1 (en) 2021-02-11 2022-08-18 Franck Guigan Deformed optical security devices

Also Published As

Publication number Publication date
DE2147586A1 (en) 1972-04-13
JPS4946931B1 (en) 1974-12-12
FR2108387A5 (en) 1972-05-19
CA989237A (en) 1976-05-18

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Legal Events

Date Code Title Description
PS Patent sealed
48R Reference inserted (sect. 8/1949)
PCNP Patent ceased through non-payment of renewal fee