GB959661A - A process of preventing darkening and the formation of precipitates in photographic developers - Google Patents

A process of preventing darkening and the formation of precipitates in photographic developers

Info

Publication number
GB959661A
GB959661A GB24440/63A GB2444063A GB959661A GB 959661 A GB959661 A GB 959661A GB 24440/63 A GB24440/63 A GB 24440/63A GB 2444063 A GB2444063 A GB 2444063A GB 959661 A GB959661 A GB 959661A
Authority
GB
United Kingdom
Prior art keywords
precipitates
formation
photographic developers
preventing darkening
darkening
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
GB24440/63A
Other languages
English (en)
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
Original Assignee
Agfa 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 AG filed Critical Agfa AG
Publication of GB959661A publication Critical patent/GB959661A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D285/00—Heterocyclic compounds containing rings having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by groups C07D275/00 - C07D283/00
    • C07D285/01—Five-membered rings
    • C07D285/02—Thiadiazoles; Hydrogenated thiadiazoles
    • C07D285/04—Thiadiazoles; Hydrogenated thiadiazoles not condensed with other rings
    • C07D285/12—1,3,4-Thiadiazoles; Hydrogenated 1,3,4-thiadiazoles
    • C07D285/125—1,3,4-Thiadiazoles; Hydrogenated 1,3,4-thiadiazoles with oxygen, sulfur or nitrogen atoms, directly attached to ring carbon atoms, the nitrogen atoms not forming part of a nitro radical
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D285/00—Heterocyclic compounds containing rings having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by groups C07D275/00 - C07D283/00
    • C07D285/01—Five-membered rings
    • C07D285/02—Thiadiazoles; Hydrogenated thiadiazoles
    • C07D285/04—Thiadiazoles; Hydrogenated thiadiazoles not condensed with other rings
    • C07D285/12—1,3,4-Thiadiazoles; Hydrogenated 1,3,4-thiadiazoles
    • C07D285/125—1,3,4-Thiadiazoles; Hydrogenated 1,3,4-thiadiazoles with oxygen, sulfur or nitrogen atoms, directly attached to ring carbon atoms, the nitrogen atoms not forming part of a nitro radical
    • C07D285/135—Nitrogen atoms
    • 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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G03C5/305—Additives other than developers
    • 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
    • G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
    • G03C8/24—Photosensitive materials characterised by the image-receiving section
    • G03C8/243—Toners for the silver image

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Nitrogen- Or Sulfur-Containing Heterocyclic Ring Compounds With Rings Of Six Or More Members (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
GB24440/63A 1960-07-27 1961-07-27 A process of preventing darkening and the formation of precipitates in photographic developers Expired GB959661A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA35212A DE1175077B (de) 1960-07-27 1960-07-27 Verfahren zur Verhinderung der Dunkel-faerbung und Schlammbildung in photo-graphischen Entwicklern

Publications (1)

Publication Number Publication Date
GB959661A true GB959661A (en) 1964-06-03

Family

ID=6928904

Family Applications (3)

Application Number Title Priority Date Filing Date
GB24440/63A Expired GB959661A (en) 1960-07-27 1961-07-27 A process of preventing darkening and the formation of precipitates in photographic developers
GB24439/63A Expired GB959182A (en) 1960-07-27 1961-07-27 A process of preventing darkening and the formation of precipitates in photographic developers
GB27326/61A Expired GB940169A (en) 1960-07-27 1961-07-27 A process for preventing darkening and precipitates in photographic developers

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB24439/63A Expired GB959182A (en) 1960-07-27 1961-07-27 A process of preventing darkening and the formation of precipitates in photographic developers
GB27326/61A Expired GB940169A (en) 1960-07-27 1961-07-27 A process for preventing darkening and precipitates in photographic developers

Country Status (5)

Country Link
US (1) US3212892A (es)
BE (1) BE606550A (es)
CH (1) CH399903A (es)
DE (1) DE1175077B (es)
GB (3) GB959661A (es)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1447569A1 (de) * 1963-04-27 1969-02-13 Agfa Ag Lichtempfindliches photographisches Material
US3365294A (en) * 1963-04-27 1968-01-23 Agfa Ag Photographic material containing yellow fog-preventing agents
US3617289A (en) * 1966-12-10 1971-11-02 Fuji Photo Film Co Ltd Stabilization process for thermally developable light-sensitive elements
DE1919045C3 (de) * 1969-04-15 1979-11-15 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren zur Herstellung stabiler photographischer Bilder
US4093462A (en) * 1976-11-11 1978-06-06 Eastman Kodak Company 2,5-Bis(secondary amino) oxa- and thiadiazole photographic developing agents
JPS5726848A (en) * 1980-07-24 1982-02-13 Fuji Photo Film Co Ltd Developing method for photosensitive silver halide material
JPS6128943A (ja) * 1984-07-19 1986-02-08 Fuji Photo Film Co Ltd カラ−反転写真感光材料の現像処理方法
JPS61282841A (ja) * 1985-06-07 1986-12-13 Fuji Photo Film Co Ltd ハロゲン化銀カラ−感光材料の処理方法
JP2591616B2 (ja) 1986-04-22 1997-03-19 コニカ株式会社 カブリの防止されたハロゲン化銀写真感光材料の処理方法
US4933265A (en) * 1986-09-01 1990-06-12 Fuji Photo Film Co., Ltd. Process for forming direct positive color image
US4761482A (en) * 1987-04-23 1988-08-02 R. T. Vanderbilt Company, Inc. Terpene derivatives of 2,5-dimercapto-1,3,4-thiadiazoles and lubricating compositions containing same
US5310629A (en) * 1991-06-28 1994-05-10 Eastman Kodak Company Silver recovery element and method
US5188662A (en) * 1991-06-28 1993-02-23 Eastman Kodak Company Silver recovery process
US5210009A (en) * 1991-06-28 1993-05-11 Eastman Kodak Company Silver recovery element and process
JP3240334B2 (ja) * 1992-10-12 2001-12-17 コニカ株式会社 黒白ハロゲン化銀写真感光材料の現像処理方法
US5506092A (en) * 1993-12-06 1996-04-09 Konica Corporation Method of processing black and white silver halide photographic compositions with a developer containing an anti sludgant
US5660972A (en) * 1994-03-16 1997-08-26 Mitsubishi Paper Mills Limited Method for photographic development using a filter to inhibit occurrence of silver sludges
DE4424680A1 (de) 1994-07-13 1996-01-18 Rhein Chemie Rheinau Gmbh Poly[2.5-bis(polysulfano)-1.3.4-thiadiazole]
US5683859A (en) * 1996-05-20 1997-11-04 Eastman Kodak Company Photographic developing composition containing a sludge inhibiting agent and use thereof in the high contrast development of nucleated photographic elements
US5840471A (en) 1996-10-02 1998-11-24 Konica Corporation Method for processing silver halide photographic light-sensitive material
US5830626A (en) * 1997-08-26 1998-11-03 Eastman Kodak Company Photographic developing composition containing anti-sludging agent and use thereof
US6620771B2 (en) * 1999-10-20 2003-09-16 R. T. Vanderbilt Company, Inc. Thiadiazole dimer additives and lubricating compositions containing the same
US20100144793A1 (en) * 2006-11-24 2010-06-10 Ac Immune Sa Novel compounds for the treatment of diseases associated with amyloid or amyloid-like proteins
AU2007324696B2 (en) 2006-11-24 2012-10-04 Ac Immune S.A. N- (methyl) -1H- pyrazol- 3 -amine, N- (methyl) -pyridin-2-amine and N- (methyl) -thiazol-2-amine derivatives for the treatment of diseases associated with amyloid or amyloid-like proteins, like e.g. Alzheimer's
EP2311823A1 (en) * 2009-10-15 2011-04-20 AC Immune S.A. 2,6-Diaminopyridine compounds for treating diseases associated with amyloid proteins or for treating ocular diseases
WO2021055388A1 (en) 2019-09-17 2021-03-25 The Lubrizol Corporation 2,5-dimercapto-1,3,4-thiadiazole ("dmtd") derivatives
CA3190556A1 (en) 2020-08-26 2022-03-03 Paul E. Adams 2,5-dimercapto-1,3,4-thiadiazole (dmtd) zinc salt derivatives
CA3190644A1 (en) 2020-08-26 2022-03-03 Paul E. Adams 2,5-dimercapto-1,3,4-thiadiazole ("dmtd") metal salt derivatives
CN114805244A (zh) * 2022-05-19 2022-07-29 贵州大学 双-(1,3,4-噻二唑)类衍生物及其制备方法和应用

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT160168B (de) * 1937-09-15 1941-02-25 Gevaert Photo Prod Nv Entwicklungsverfahren für photographische Halogensilberschichten.
US2592195A (en) * 1939-12-20 1952-04-08 Gevaert Photo Prod Nv Heterocyclic nitrogen compounds
BE476657A (es) * 1946-04-05
US2719126A (en) * 1952-12-30 1955-09-27 Standard Oil Co Corrosion inhibitors and compositions containing same
DE953607C (de) * 1953-08-20 1956-12-06 Basf Ag Verfahren zur Herstellung von Mono- oder Disubstitutionsprodukten des 2, 5-Dimercapto-1, 3, 4-thiadiazols
BE537818A (es) * 1954-05-03
DE950537C (de) * 1954-08-06 1956-10-11 Filmfabrik Agfa Wolfen Veb Verfahren zur Klarhaltung von photographischen Halogensilberemulsionen bei der Entwicklung
BE557693A (es) * 1956-05-23
NL227262A (es) * 1957-04-26

Also Published As

Publication number Publication date
GB959182A (en) 1964-05-27
US3212892A (en) 1965-10-19
DE1175077B (de) 1964-07-30
CH399903A (de) 1965-09-30
BE606550A (es)
GB940169A (en) 1963-10-23

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