GB1229848A - - Google Patents

Info

Publication number
GB1229848A
GB1229848A GB1229848DA GB1229848A GB 1229848 A GB1229848 A GB 1229848A GB 1229848D A GB1229848D A GB 1229848DA GB 1229848 A GB1229848 A GB 1229848A
Authority
GB
United Kingdom
Prior art keywords
ethylisoformanilide
anilinomethyleneheterocyclic
anilinomethylene
dihydrobenzimidazole
dihydropyridine
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 GB1229848A publication Critical patent/GB1229848A/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
    • C09B23/00Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/10The polymethine chain containing an even number of >CH- groups
    • C09B23/105The polymethine chain containing an even number of >CH- groups two >CH- groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
GB1229848D 1967-05-17 1968-05-15 Expired GB1229848A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63902467A 1967-05-17 1967-05-17

Publications (1)

Publication Number Publication Date
GB1229848A true GB1229848A (enrdf_load_stackoverflow) 1971-04-28

Family

ID=24562419

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1229848D Expired GB1229848A (enrdf_load_stackoverflow) 1967-05-17 1968-05-15

Country Status (4)

Country Link
US (1) US3528811A (enrdf_load_stackoverflow)
BE (1) BE715266A (enrdf_load_stackoverflow)
FR (1) FR1577440A (enrdf_load_stackoverflow)
GB (1) GB1229848A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE473453A (enrdf_load_stackoverflow) * 1945-12-07
US2464780A (en) * 1945-12-07 1949-03-22 Gen Aniline & Film Corp Dye-sensitized photographic silver halide emulsion

Also Published As

Publication number Publication date
BE715266A (enrdf_load_stackoverflow) 1968-10-16
FR1577440A (enrdf_load_stackoverflow) 1969-08-08
DE1769383A1 (de) 1971-04-08
US3528811A (en) 1970-09-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee