GB841536A - Improvements in photographic reproduction processes and in photographic silver halide emulsions therefor - Google Patents
Improvements in photographic reproduction processes and in photographic silver halide emulsions thereforInfo
- Publication number
- GB841536A GB841536A GB36639/56A GB3663956A GB841536A GB 841536 A GB841536 A GB 841536A GB 36639/56 A GB36639/56 A GB 36639/56A GB 3663956 A GB3663956 A GB 3663956A GB 841536 A GB841536 A GB 841536A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphonium
- photographic
- dodecyl
- specifications
- polymers
- 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
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
- G03C1/04—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
- G03C1/043—Polyalkylene oxides; Polyalkylene sulfides; Polyalkylene selenides; Polyalkylene tellurides
-
- 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)
- Colloid Chemistry (AREA)
- Luminescent Compositions (AREA)
Abstract
841,536. Photographic emulsions and processes. KODAK Ltd. Nov. 30, 1956 [Dec. 1, 1955], No. 36639/56. Class 98(2) A photographic silver halide emulsion is sensitized with an alkylene oxide polymer or a condensation product of an alkylene oxide with an organic compound containing an active hydrogen atom and with a sulphonium salt of the general formula R1R2R3SX, wherein R1 and R2 are each alkyl or aralkyl, R3 is an alkyl group containing 9 or more carbon atoms, and X is an anion. The emulsion may also contain an ahtifoggant such as 4-hydroxy-6-methyl-1:3:3a:7- tetrazaindene or 5-carboxy-4-hydroxy-1:3:3a:7- tetrazaindene. Alternatively, either the polymer or the sulphonium compound may be incorporated in the emulsion before exposure and the other of the two is then included in the developer solution. Sulphonium compounds specified are the p-toluene sulphonates wherein R1 and R2 methyl and R3 is n-nonyl, n-decyl, n-dodecyl or n-tetradecyl, diethyl n-dodecyl sulphonium ptoluene sulphonate and benzyl ethyl n-dodecyl sulphonium ethosulphate. The polymers may be obtained by polymerizing ethylene, propylene or butylene oxides or by condensing such oxides with alcohols, glycols, amines, mercaptans, acids, amides, hydrocarbons such as acetylene or compounds with a reactive methylene group such as dibenzoylmethane. Suitable polymers are described in Specifications 380,431, 380,851, 548,019 and 592,676. Polymers specified are polyethylene oxide, di-(polyethylene-glycoxy)-decane and polyethylene oxide oleyl ether. In the examples, the emulsions contain also a sulphur sensitizer such as one of those in Specification 235,211 and potassium chloroaurate. Stabilizing agents such as mercury compounds, cadmium chloride, cadmium nitrate, cobalt nitrate, manganese chloride, manganese sulphate, zinc chloride, zinc nitrate and zinc sulphate also may be added. Specifications 556,457, 600,058, 636,140, 680,593, 682,355, 742,219, 742,221, 742,224 and 815,075, U.S.A. Specifications 2,090,890, 2,121,823 and 2,441,389 also are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US550496A US2848330A (en) | 1955-12-01 | 1955-12-01 | Photographic emulsions sensitized with sulfonium salts and alkylene oxide polymers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB841536A true GB841536A (en) | 1960-07-20 |
Family
ID=24197412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36639/56A Expired GB841536A (en) | 1955-12-01 | 1956-11-30 | Improvements in photographic reproduction processes and in photographic silver halide emulsions therefor |
Country Status (5)
Country | Link |
---|---|
US (1) | US2848330A (en) |
BE (1) | BE553032A (en) |
DE (1) | DE1048476B (en) |
FR (1) | FR1170224A (en) |
GB (1) | GB841536A (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE577256A (en) * | 1958-03-31 | |||
US3006760A (en) * | 1958-10-23 | 1961-10-31 | Gen Aniline & Film Corp | Photographic materials |
US3046132A (en) * | 1958-12-12 | 1962-07-24 | Eastman Kodak Co | Sensitization of photographic silver halide emulsions with polyester compounds containing a plurality of sulfur atoms |
US3046133A (en) * | 1958-12-12 | 1962-07-24 | Eastman Kodak Co | Sensitization of photographic silver halide emulsions with polyester compounds containing thioether-sulfur atoms in the side chain |
US3046135A (en) * | 1958-12-12 | 1962-07-24 | Eastman Kodak Co | Sensitization of photographic silver halide emulsions with sulfur-containing polymers |
US3046129A (en) * | 1958-12-12 | 1962-07-24 | Eastman Kodak Co | Sensitization of photographic silver halide emulsions containing colorforming compounds with polymeric thioethers |
US3113026A (en) * | 1959-01-19 | 1963-12-03 | Gen Aniline & Film Corp | Polyvinyl alcohol photographic silver halide emulsions |
BE595533A (en) * | 1959-10-01 | |||
BE597819A (en) * | 1959-12-11 | |||
BE602578A (en) * | 1960-04-18 | |||
BE623790A (en) * | 1961-10-23 | |||
US3253919A (en) * | 1962-06-12 | 1966-05-31 | Eastman Kodak Co | Sensitizers for photographic silver halide emulsions |
US3312553A (en) * | 1963-10-30 | 1967-04-04 | Gen Aniline & Film Corp | Photographic materials |
JPS5232569B2 (en) * | 1972-08-31 | 1977-08-23 | ||
JPS564139A (en) * | 1979-06-22 | 1981-01-17 | Konishiroku Photo Ind Co Ltd | High contrast silver image forming method |
US20020197726A1 (en) * | 2001-05-23 | 2002-12-26 | Gyula Vigh | Anionic ion pairing compositions having volatile combustion products with O or S or halogen atoms or their combinations as heteroatoms for use with gas-phase or vapor-phase element-specific detectors |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE463680A (en) * | 1940-02-29 | |||
US2275727A (en) * | 1940-02-29 | 1942-03-10 | Eastman Kodak Co | Photographic emulsion |
US2410690A (en) * | 1943-08-26 | 1946-11-05 | Eastman Kodak Co | Method of improving the sensitivity characteristics of emulsions |
BE530063A (en) * | 1953-07-01 |
-
0
- BE BE553032D patent/BE553032A/xx unknown
- DE DENDAT1048476D patent/DE1048476B/de active Pending
-
1955
- 1955-12-01 US US550496A patent/US2848330A/en not_active Expired - Lifetime
-
1956
- 1956-11-28 FR FR1170224D patent/FR1170224A/en not_active Expired
- 1956-11-30 GB GB36639/56A patent/GB841536A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE553032A (en) | |
FR1170224A (en) | 1959-01-12 |
DE1048476B (en) | |
US2848330A (en) | 1958-08-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB841536A (en) | Improvements in photographic reproduction processes and in photographic silver halide emulsions therefor | |
US2886437A (en) | Photographic emulsions sensitized with alkylene oxide polymers and quaternary ammonium compounds | |
GB1019224A (en) | Photographic silver halide emulsions and sensitive materials prepared therewith | |
GB912258A (en) | Improvements in photographic diffusion transfer processes | |
GB748745A (en) | Light-sensitive silver halide emulsion containing fog inhibiting agents | |
GB945857A (en) | Improvements in or relating to light-sensitive photographic materials | |
GB991608A (en) | Process for producing a photographic silver image and photographic silver halide emulsions of increased sensitivity | |
GB1528951A (en) | Development of photographic silver halide material | |
US3017271A (en) | Photographic emulsions sensitized with alkylene oxide polymers and quaternary ammonium salts | |
GB1135112A (en) | Linear condensation polymers | |
GB868242A (en) | Improved silver halide emulsions containing mercapto-1:3:4-oxadiazoles | |
US3573049A (en) | Photographic materials and processes for developing photographic compositions having a zwitterionic and anionic elements | |
GB1298965A (en) | Process for the development of silver halide photographic material | |
GB851816A (en) | Light-sensitive silver halide emulsions | |
GB989891A (en) | Stabilized photographic silver halide emulsions containing iodine complexes of poly-n-vinyl-2-oxazolidinones | |
US3255008A (en) | Photographic processing compositions | |
US3532499A (en) | Amino - n - oxides as development accelerators in photography | |
GB1248530A (en) | Photographic lith development | |
GB1298705A (en) | Light-sensitive silver halide photographic materials containing anti-spotting agents | |
US3276875A (en) | Developing composition with pyrrolidone anti-sludging agent | |
GB1480242A (en) | Development of silver halide emulsions | |
GB767701A (en) | Improvements in photographic developer compositions | |
GB767703A (en) | Improvements in direct positive photographic processes | |
US3314789A (en) | Quaternary ammonium salts in silver halide processing solutions | |
US3392023A (en) | Gelatin-silver halide emulsion containing a salt of tris (beta-sulfatoethyl)-sulfonium inner salt |