GB1320138A - Photographic fine grain silver halide emulsions - Google Patents

Photographic fine grain silver halide emulsions

Info

Publication number
GB1320138A
GB1320138A GB5302569A GB1320138DA GB1320138A GB 1320138 A GB1320138 A GB 1320138A GB 5302569 A GB5302569 A GB 5302569A GB 1320138D A GB1320138D A GB 1320138DA GB 1320138 A GB1320138 A GB 1320138A
Authority
GB
United Kingdom
Prior art keywords
prepared
bis
benzimidazol
acid
mercapto
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
GB5302569A
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
Application filed by Agfa Gevaert NV, Agfa Gevaert AG filed Critical Agfa Gevaert NV
Publication of GB1320138A publication Critical patent/GB1320138A/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
    • G03C1/09—Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising
    • 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
    • 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
    • G03C1/07—Substances influencing grain growth during silver salt formation
    • 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

Abstract

1320138 Imidazole and triazole derivatives AGFA-GEVAERT 28 Sept 1970 [29 Oct 1969] 53025/69 Heading C2C [Also in Division G2] 2 - (4 - Pyridyl) - naphth - [1,2] - imidazole is prepared by heating 1,2-diaminonaphthalene and isonicotinic acid in polyphosphoric acid. 1,2 - Bis - [5 - (γ - sulphopropylthio) - 1H - 1,2,4- triazole-3-yl]-ethane is prepared by adding propanesultone to a solution of 1,2-bis-(5-mercapto- 1H-1,2,4-triazol-3-yl)ethane and sodium methylate in methanol and refluxing. 1,2-Bis - [5- (1,3,3 - trimethyl - γ - sulphopropylthio) - 1H- 1,2,4 - triazol - 3 - yl]ethane disodium salt is prepared similarly to the last-mentioned compound. 1,2 - Bis - [benzimidazol - 2 - ylthio]- ethane is prepared by adding 1,2-dibromoethane and methanol containing sodium methylate to 2-mercapto-benzimidazole and refluxing. 2-(2- Pyridyl)-benzimidazole is prepared by heating α-picolinic acid and o-phenylenediamine to 250‹ C. 2,6 - Di - (benzimidazol - 2 - yl)pyridine is prepared by heating o-phenylenediamine and 2,6-pyridine-dicarboxylic acid in polyphosphoric acid. Bis - [5 - sulpho - benzimidazol - 2 - ylthio]- methane disodium salt is prepared by adding dropwise dibromomethane to a solution of the disodium salt of 2-mercapto-5-sulphobenzimidazole in dimethylformamide. 2-[5-Sulpho-benzimidazol-2-ylthio-methyl]pyridine is prepared by adding dropwise 2-chloromethylpyridine to a solution of the disodium salt of 2-mercapto-5- sulphobenzimidazole in dimethyl-formamide. 1,4 - Bis - [sulpho - benzimidazol - 2 - yl] - butane is prepared by adding dropwise fuming sulphuric acid to a solution of 1,4-bis-[benzimidazol- 2-yl]butane in sulphuric acid.
GB5302569A 1969-10-29 1969-10-29 Photographic fine grain silver halide emulsions Expired GB1320138A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5302569 1969-10-29

Publications (1)

Publication Number Publication Date
GB1320138A true GB1320138A (en) 1973-06-13

Family

ID=10466324

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5302569A Expired GB1320138A (en) 1969-10-29 1969-10-29 Photographic fine grain silver halide emulsions

Country Status (7)

Country Link
US (1) US3704130A (en)
JP (1) JPS4946928B1 (en)
BE (1) BE758103A (en)
CH (1) CH564790A5 (en)
DE (1) DE2053023C3 (en)
FR (1) FR2066207A5 (en)
GB (1) GB1320138A (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE792093A (en) * 1971-12-09 1973-05-30 Agfa Gevaert Nv VOOR PROCESS OF BEREIDING VAN FOTOGRAFISCHE FIJNKORRELIGE ZILVERHALOGENIDE-EMULSIES
DE2758711A1 (en) * 1977-12-29 1979-07-19 Agfa Gevaert Ag LIGHT SENSITIVE PHOTOGRAPHIC MATERIAL
DE3019733A1 (en) * 1980-05-23 1981-12-03 Agfa-Gevaert Ag, 5090 Leverkusen METHOD FOR PRODUCING SILVER HALOGENID EMULSIONS, PHOTOGRAPHIC MATERIALS AND METHOD FOR PRODUCING PHOTOGRAPHIC IMAGES
JPS58160948A (en) * 1982-03-18 1983-09-24 Konishiroku Photo Ind Co Ltd Lippmann type photosensitive silver halide material
JPS58189628A (en) * 1982-04-28 1983-11-05 Konishiroku Photo Ind Co Ltd Thermodevelopable image recording material
JPS58193541A (en) * 1982-05-07 1983-11-11 Konishiroku Photo Ind Co Ltd Heat developable image recording material
JPS59188641A (en) 1983-04-11 1984-10-26 Fuji Photo Film Co Ltd Silver halide photographic emulsion
JPH061354B1 (en) 1985-02-06 1994-01-05 富士写真フイルム株式会社 Silver halide photographic light-sensitive material
EP0241107A3 (en) * 1986-01-24 1988-10-05 Konishiroku Photo Industry Co. Ltd. Silver halide photograhic material that is resistant to fogging during storage
DE3782351T2 (en) 1986-03-25 1993-05-27 Konishiroku Photo Ind LIGHT SENSITIVE PHOTOGRAPHIC SILVER HALOGENID MATERIAL USED FOR FAST DEVELOPMENT.
DE3855361T2 (en) 1987-10-20 1997-01-02 Fuji Photo Film Co Ltd Silver halide photographic material
JP2687179B2 (en) * 1989-12-05 1997-12-08 富士写真フイルム株式会社 Method for producing silver halide emulsion and light-sensitive material and recording method using the same
JP2936105B2 (en) * 1991-06-06 1999-08-23 コニカ株式会社 Method for producing silver halide emulsion and silver halide photographic material
DE69328884T2 (en) 1992-03-19 2000-12-07 Fuji Photo Film Co Ltd Process for the preparation of a silver halide photographic emulsion
US5418124A (en) 1992-03-19 1995-05-23 Fuji Photo Film Co. Ltd. Silver halide photographic emulsion and a photographic light-sensitive material
EP0590620B1 (en) * 1992-10-01 1999-12-08 Sterling Diagnostic Imaging, Inc. Silver halide emulsions stabilized with improved antifoggants
WO1995021160A1 (en) * 1994-02-04 1995-08-10 Fuji Photo Film Co., Ltd. 2-mercaptobenzimidazole derivative and antihyperlipemic or antiarteriosclerotic agent containing the same
US5476760A (en) 1994-10-26 1995-12-19 Eastman Kodak Company Photographic emulsions of enhanced sensitivity
JPH09152696A (en) 1995-11-30 1997-06-10 Fuji Photo Film Co Ltd Silver halide color photographic sensitive material
US6143484A (en) * 1999-05-06 2000-11-07 Eastman Kodak Company Method for stabilizing photographic dispersions in melts containing fine grain silver halide
EP1484323B1 (en) * 2003-06-06 2009-09-30 Agfa HealthCare NV 2-thiosubstituted benzimidazole derivatives as surfactants for photographic application
EP1484640B1 (en) * 2003-06-06 2009-09-16 Agfa HealthCare NV Surfactants for use in light-insensitive thermographic recording materials
EP1742936A2 (en) 2004-04-13 2007-01-17 Icagen, Inc. Polycyclic pyridines as potassium ion channel modulators
US10073416B2 (en) 2015-04-24 2018-09-11 Lg Display Co., Ltd. Method for producing a holographic optical element

Also Published As

Publication number Publication date
DE2053023A1 (en) 1971-05-06
CH564790A5 (en) 1975-07-31
BE758103A (en) 1971-04-28
DE2053023C3 (en) 1979-08-23
JPS4946928B1 (en) 1974-12-12
DE2053023B2 (en) 1978-12-14
US3704130A (en) 1972-11-28
FR2066207A5 (en) 1971-08-06

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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