GB626467A - Sensitising photographic silver halide emulsions - Google Patents

Sensitising photographic silver halide emulsions

Info

Publication number
GB626467A
GB626467A GB17596/46A GB1759646A GB626467A GB 626467 A GB626467 A GB 626467A GB 17596/46 A GB17596/46 A GB 17596/46A GB 1759646 A GB1759646 A GB 1759646A GB 626467 A GB626467 A GB 626467A
Authority
GB
United Kingdom
Prior art keywords
methyl
prepared
sodium
sensitising
silver halide
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
GB17596/46A
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 GB626467A publication Critical patent/GB626467A/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
    • G03C1/28—Sensitivity-increasing substances together with supersensitising substances
    • G03C1/29—Sensitivity-increasing substances together with supersensitising substances the supersensitising mixture being solely composed of dyes ; Combination of dyes, even if the supersensitising effect is not explicitly disclosed

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)
  • Indole Compounds (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

1 - Phenyl - 3 - methyl - 5 - hydroxypyrazolyl-a 1 : b - butylene - trimethine-1-phenyl-3-methyl-3-pyrazolone-p : p1-diammonium sulphonate is prepared by condensing the ammonium salt of 1-(p-sulphophenyl)-3-methyl-5-pyrazolone with p sodium hydroxymethylenecyclohexanone in methyl alcohol. 5 - Hydroxy - 3 - phenylisoxazolyl - a - carbethoxy-a 1-methyltrimethine-3-phenylisoxazolone-5 is prepared by heating together phenylisoxazolone, sodium ethyl acetylpyruvate and ethyl alcohol, and pouring into aqueous potassium bromide. Barbituryl - pentamethine - 3 - hydroxyuracil is prepared by heating together barbituric acid, glutacondialdehydedianilide hydrobromide, triethylamine and ethyl alcohol. (1 - Oxo - 3 - hydroxyhydrindyl - 2) - b - chloro - trimethineindanedione is prepared by reacting together indanedione, chloromalondialdehydedianilide hydrochloride and sodium hydroxide in methyl alcohol.
GB17596/46A 1941-05-22 1946-06-12 Sensitising photographic silver halide emulsions Expired GB626467A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE626467X 1941-05-22

Publications (1)

Publication Number Publication Date
GB626467A true GB626467A (en) 1949-07-15

Family

ID=6578250

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17596/46A Expired GB626467A (en) 1941-05-22 1946-06-12 Sensitising photographic silver halide emulsions

Country Status (6)

Country Link
US (1) US2644754A (en)
BE (1) BE445646A (en)
ES (1) ES157458A1 (en)
FR (1) FR882245A (en)
GB (1) GB626467A (en)
NL (1) NL61612C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2830883A (en) * 1954-04-29 1958-04-15 Texas Co Gasification of sulfur-bearing carbonaceous fuels
BE560805A (en) * 1956-09-13
DE19711142A1 (en) * 1997-03-18 1998-09-24 Agfa Gevaert Ag Highly sensitive color photographic recording material with increased sensitivity in the blue spectral range

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2127340A (en) * 1937-03-29 1938-08-16 Eastman Kodak Co Photographic emulsion containing supersensitized thiazolocarbocyanines
US2274782A (en) * 1937-11-24 1942-03-03 Chromogen Inc Light-sensitive photographic material
BE436514A (en) * 1938-10-01

Also Published As

Publication number Publication date
ES157458A1 (en) 1943-03-01
FR882245A (en) 1943-05-21
US2644754A (en) 1953-07-07
NL61612C (en)
BE445646A (en)

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