GB680593A - Improvements in photographic silver halide emulsions - Google Patents

Improvements in photographic silver halide emulsions

Info

Publication number
GB680593A
GB680593A GB23496/50A GB2349650A GB680593A GB 680593 A GB680593 A GB 680593A GB 23496/50 A GB23496/50 A GB 23496/50A GB 2349650 A GB2349650 A GB 2349650A GB 680593 A GB680593 A GB 680593A
Authority
GB
United Kingdom
Prior art keywords
silver halide
halide emulsions
photographic silver
dimethylthiacarbocyanine
chloride
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
GB23496/50A
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.)
Kodak Ltd
Original Assignee
Kodak Ltd
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 Kodak Ltd filed Critical Kodak Ltd
Publication of GB680593A publication Critical patent/GB680593A/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

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)
  • Plural Heterocyclic Compounds (AREA)

Abstract

3 : 31 - Dimethylthiacarbocyanine chloraurate is prepared by adding an ethanol solution of auric chloride to an ethanol suspension of 3 : 31-dimethylthiacarbocyanine chloride. Other cyanine dye chloraurates are similarly prepared, as described in Specification 682,355. Specifications 450,958, 515,145, 517,769 and 539,355 [Group XX], also are referred to.
GB23496/50A 1949-09-24 1950-09-25 Improvements in photographic silver halide emulsions Expired GB680593A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US117719A US2597856A (en) 1949-09-24 1949-09-24 Stabilization of photographic emulsions sensitized with gold compounds

Publications (1)

Publication Number Publication Date
GB680593A true GB680593A (en) 1952-10-08

Family

ID=22374461

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23496/50A Expired GB680593A (en) 1949-09-24 1950-09-25 Improvements in photographic silver halide emulsions

Country Status (5)

Country Link
US (1) US2597856A (en)
BE (1) BE498287A (en)
DE (1) DE854883C (en)
FR (1) FR1053787A (en)
GB (1) GB680593A (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2717833A (en) * 1952-05-12 1955-09-13 Sperry Rand Corp Direct positive emulsions
BE523958A (en) * 1952-11-08
US2743182A (en) * 1952-11-08 1956-04-24 Eastman Kodak Co Chemical sensitization of photographic emulsions
BE523959A (en) * 1952-11-08
DE1012821B (en) * 1955-07-08 1957-07-25 C Schleussner Fotowerke G M B Process for the preparation of highly sensitive photographic silver halide emulsions
FR1385606A (en) * 1963-12-05 1965-01-15 Kodak Pathe New photographic emulsions with very low sensitivity to light from safety lamps
GB1132474A (en) * 1965-12-29 1968-11-06 Agfa Gevaert Nv Method for the preparation of thiogold (i) compounds
GB1239017A (en) * 1968-02-22 1971-07-14
US3635717A (en) * 1968-07-08 1972-01-18 Fuji Photo Film Co Ltd Silver halide emulsion sensitized with noble metal and sugar mercapto compound
US3672903A (en) * 1970-02-16 1972-06-27 Eastman Kodak Co Direct-positive silver halide emulsions containing gold salt complex addenda
US3753721A (en) * 1970-08-13 1973-08-21 Eastman Kodak Co Photographic materials
US3755329A (en) * 1970-12-22 1973-08-28 Du Pont Nitrogen-heterocyclylgold(i) compounds
US3976489A (en) * 1972-03-24 1976-08-24 Polaroid Corporation Silver halide photographic products with semiconductor sensitizers
JPS5232569B2 (en) * 1972-08-31 1977-08-23
JPS53134430A (en) * 1977-04-27 1978-11-24 Mitsubishi Paper Mills Ltd Silver halide photosensitive materials for multiilayer color photograph
US4247617A (en) * 1979-05-11 1981-01-27 Polaroid Corporation Silver diffusion transfer film unit transparency
US5219707A (en) * 1983-01-12 1993-06-15 Tdk Corporation Photostable cyanine dye and optical recording medium
US5200308A (en) * 1990-01-19 1993-04-06 Konica Corporation Color photographic material
EP0446899A1 (en) * 1990-03-16 1991-09-18 Konica Corporation Silver halide photographic material
US5220030A (en) * 1990-11-16 1993-06-15 Eastman Kodak Company Photographic silver halide material comprising gold compound
US5049485A (en) * 1990-11-16 1991-09-17 Eastman Kodak Company Photographic silver halide material comprising gold compound
WO1993002390A1 (en) * 1991-07-22 1993-02-04 Eastman Kodak Company Gold compounds as antifoggants in high silver chloride emulsions
US5252455A (en) * 1992-03-04 1993-10-12 Eastman Kodak Company Photographic silver halide material comprising gold (I) complexes comprising sulfur- and/or selenium-substituted macrocyclic polyether ligands
DE69324791T2 (en) * 1993-02-12 1999-10-28 Agfa-Gevaert N.V., Mortsel Photosensitive, photographic silver halide material with enhanced image quality for rapid processing for use in mammography
FR2722009A1 (en) 1994-07-04 1996-01-05 Kodak Pathe PHOTOGRAFIC EMULSION WITH IMPROVED SENSITIVITY
US5468588A (en) 1994-10-18 1995-11-21 Minnesota Mining And Manufacturing Company Process for manufacturing diffusion transfer printing plates
JPH08190199A (en) 1994-10-18 1996-07-23 Minnesota Mining & Mfg Co <3M> Photosensitive element
US5582957A (en) * 1995-03-28 1996-12-10 Eastman Kodak Company Resuspension optimization for photographic nanosuspensions
US5858637A (en) * 1997-06-27 1999-01-12 Eastman Kodak Company Process of preparing a photothermographic composition of enhanced photosensitivity
US6423481B1 (en) 2001-01-23 2002-07-23 Eastman Kodak Company High speed photothermographic materials with combined chemical sensitizers and methods of using same
EP2619628B1 (en) 2010-09-17 2014-03-26 Fujifilm Manufacturing Europe BV Photographic paper and its use in a photo album
GB202006061D0 (en) 2020-04-24 2020-06-10 Fujifilm Mfg Europe Bv Photographic paper

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE469014A (en) * 1942-02-13
GB608667A (en) * 1945-12-03 1948-09-20 Elliott & Sons Ltd Improvements in or relating to photographic emulsions

Also Published As

Publication number Publication date
US2597856A (en) 1952-05-27
FR1053787A (en) 1954-02-04
DE854883C (en) 1952-11-06
BE498287A (en)

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