GB1232093A - - Google Patents

Info

Publication number
GB1232093A
GB1232093A GB1232093DA GB1232093A GB 1232093 A GB1232093 A GB 1232093A GB 1232093D A GB1232093D A GB 1232093DA GB 1232093 A GB1232093 A GB 1232093A
Authority
GB
United Kingdom
Prior art keywords
phenyl
aug
indole
nitrosoindoles
nitroso
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
Other languages
English (en)
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 filed Critical
Publication of GB1232093A publication Critical patent/GB1232093A/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
    • G03C1/485Direct positive emulsions
    • G03C1/48515Direct positive emulsions prefogged
    • G03C1/48523Direct positive emulsions prefogged characterised by the desensitiser
    • G03C1/4853Direct positive emulsions prefogged characterised by the desensitiser polymethine dyes
    • 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
    • C09B55/00Azomethine dyes
    • C09B55/002Monoazomethine dyes
    • C09B55/003Monoazomethine dyes with the -C=N- group attached to an heteroring
    • C09B55/004Monoazomethine dyes with the -C=N- group attached to an heteroring with the -C=N- group between two heterorings
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/141Direct positive material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Indole Compounds (AREA)
GB1232093D 1967-08-14 1968-08-09 Expired GB1232093A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66017367A 1967-08-14 1967-08-14

Publications (1)

Publication Number Publication Date
GB1232093A true GB1232093A (fi) 1971-05-19

Family

ID=24648460

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1232093D Expired GB1232093A (fi) 1967-08-14 1968-08-09

Country Status (4)

Country Link
US (1) US3558320A (fi)
BE (1) BE719182A (fi)
FR (1) FR1584136A (fi)
GB (1) GB1232093A (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081281A (en) * 1972-02-18 1978-03-28 Agfa-Gevaert N.V. Developing low fogged, direct-positive silver halide emulsion with an energetic developer free from halide ions
US3772030A (en) * 1972-02-29 1973-11-13 Eastman Kodak Co Direct-positive emulsion containing internally fogged, silver halide grains free of surface fog and a desensitizing compound

Also Published As

Publication number Publication date
BE719182A (fi) 1969-01-16
US3558320A (en) 1971-01-26
FR1584136A (fi) 1969-12-12

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed