GB1395161A - Photographic silver halide development - Google Patents

Photographic silver halide development

Info

Publication number
GB1395161A
GB1395161A GB4351871A GB4351871A GB1395161A GB 1395161 A GB1395161 A GB 1395161A GB 4351871 A GB4351871 A GB 4351871A GB 4351871 A GB4351871 A GB 4351871A GB 1395161 A GB1395161 A GB 1395161A
Authority
GB
United Kingdom
Prior art keywords
silver halide
compounds
halide emulsion
nitrile
photographic silver
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
GB4351871A
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.)
Agfa Gevaert NV
Agfa Gevaert AG
Original Assignee
Agfa Gevaert NV
Agfa Gevaert AG
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
Priority to BE788688D priority Critical patent/BE788688A/en
Application filed by Agfa Gevaert NV, Agfa Gevaert AG filed Critical Agfa Gevaert NV
Priority to GB4351871A priority patent/GB1395161A/en
Priority to FR7232681A priority patent/FR2152995B3/fr
Priority to US00289093A priority patent/US3841878A/en
Priority to DE2245287A priority patent/DE2245287A1/en
Publication of GB1395161A publication Critical patent/GB1395161A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
    • C07D209/04—Indoles; Hydrogenated indoles
    • C07D209/08—Indoles; Hydrogenated indoles with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to carbon atoms of the hetero ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
    • C07D209/04—Indoles; Hydrogenated indoles
    • C07D209/10—Indoles; Hydrogenated indoles with substituted hydrocarbon radicals attached to carbon atoms of the hetero ring
    • C07D209/18—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D235/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
    • C07D235/02—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
    • C07D235/04—Benzimidazoles; Hydrogenated benzimidazoles
    • C07D235/06—Benzimidazoles; Hydrogenated benzimidazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2
    • C07D235/16—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D307/54—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
    • 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
    • G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression

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)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

1395161 Photographic silver halide development AGFA-GEVAERT 15 Sept 1972 [17 Sept 1971] 43518/71 Heading G2C [Also in Division C2] An exposed photographic element comprising a support and at least one photographic silver halide emulsion is developed at above 30‹C in the presence of at least one nitrile compound selected from: (a) benzene compounds carrying at least two CN groups on the benzene nucleus, (b) #-deficient heterocycles carrying at least one CN group on the heterocyclic nucleus and (c) compounds of the formula:- NC-C(R 1 )=CHR 2 where R 1 is CN or a #-deficient heterocycle; and R2 is optionally substituted aryl or heterocyclyl. The nitrile compound is preferably present in the silver halide emulsion, but may be present in a gelatine anti-stress layer, intermediate layer or filter layer. 16 specific nitrile compounds are disclosed. The silver halide emulsion may contain 5-methyl-7-hydroxy-5-triazolo [1, 5-a] pyrimidine and mercury cyanide (see Examples). The nitrile compounds have a favourable effect on fog and/or speed and/or gradation.
GB4351871A 1971-09-17 1971-09-17 Photographic silver halide development Expired GB1395161A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE788688D BE788688A (en) 1971-09-17 DEVELOPMENT OF PHOTOGRAPHIC MATERIAL AT ELEVATED TEMPERATURE
GB4351871A GB1395161A (en) 1971-09-17 1971-09-17 Photographic silver halide development
FR7232681A FR2152995B3 (en) 1971-09-17 1972-09-13
US00289093A US3841878A (en) 1971-09-17 1972-09-14 High temperature processing of photographic silver halide elements
DE2245287A DE2245287A1 (en) 1971-09-17 1972-09-15 DEVELOPMENT OF PHOTOGRAPHICAL MATERIALS AT INCREASED TEMPERATURE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4351871A GB1395161A (en) 1971-09-17 1971-09-17 Photographic silver halide development

Publications (1)

Publication Number Publication Date
GB1395161A true GB1395161A (en) 1975-05-21

Family

ID=10429099

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4351871A Expired GB1395161A (en) 1971-09-17 1971-09-17 Photographic silver halide development

Country Status (5)

Country Link
US (1) US3841878A (en)
BE (1) BE788688A (en)
DE (1) DE2245287A1 (en)
FR (1) FR2152995B3 (en)
GB (1) GB1395161A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3718917A1 (en) * 1987-06-05 1988-12-15 Sueddeutsche Zucker Ag DICYANVINYL-SUBSTITUTED FURANDERIVATIVES, METHOD FOR THE PRODUCTION AND USE THEREOF
JP2846091B2 (en) * 1990-09-25 1999-01-13 オリヱント化学工業株式会社 Indole compounds and their uses
BRPI0518030A (en) 2004-11-22 2008-10-28 Advanced Medical Optics Inc copolymerizable methane and anthraquinone compounds and articles containing them

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1022872A (en) * 1964-01-28 1966-03-16 Minnesota Mining & Mfg Tetraazaindene compounds and their use in photographic emulsions
GB1040161A (en) * 1964-01-29
US3565631A (en) * 1967-07-07 1971-02-23 Konishiroku Photo Ind 6 - amidinothio - 5,7 - dihydroxy - s - triazolo(2,3-a) pyrimidino compounds as stabilizers for silver halide emulsion
DE2060939A1 (en) * 1970-12-11 1972-06-15 Agfa Gevaert Ag Spectrally sensitized high speed photographic material
JPS519613B1 (en) * 1971-03-31 1976-03-29

Also Published As

Publication number Publication date
FR2152995A1 (en) 1973-04-27
DE2245287A1 (en) 1973-03-22
US3841878A (en) 1974-10-15
FR2152995B3 (en) 1974-10-31
BE788688A (en) 1973-03-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee