GB425417A - Process for sensitizing photographic emulsions - Google Patents
Process for sensitizing photographic emulsionsInfo
- Publication number
- GB425417A GB425417A GB25483/33A GB2548333A GB425417A GB 425417 A GB425417 A GB 425417A GB 25483/33 A GB25483/33 A GB 25483/33A GB 2548333 A GB2548333 A GB 2548333A GB 425417 A GB425417 A GB 425417A
- Authority
- GB
- United Kingdom
- Prior art keywords
- methyl
- diethyl
- ethiodide
- iodide obtained
- methoxy
- 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
- G03C1/06—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
- G03C1/12—Methine and polymethine dyes
- G03C1/14—Methine and polymethine dyes with an odd number of CH groups
- G03C1/20—Methine and polymethine dyes with an odd number of CH groups with more than three CH groups
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)
- Thiazole And Isothizaole Compounds (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1932I0045317 DE703336C (de) | 1932-09-14 | 1932-09-14 | Verfahren zur Sensibilisierung von Halogensilberemulsionen |
Publications (1)
Publication Number | Publication Date |
---|---|
GB425417A true GB425417A (en) | 1935-03-14 |
Family
ID=6477051
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25483/33A Expired GB425417A (en) | 1932-09-14 | 1933-09-14 | Process for sensitizing photographic emulsions |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE398585A (ko) |
DE (1) | DE703336C (ko) |
FR (1) | FR43895E (ko) |
GB (1) | GB425417A (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2423217A (en) * | 1944-08-16 | 1947-07-01 | Gen Aniline & Film Corp | Photographic emulsions containing sensitizing dyes |
US5441866A (en) * | 1994-02-28 | 1995-08-15 | Minnesota Mining And Manufacturing Company | Sensitizers for photothermographic elements |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1447577B1 (de) * | 1964-03-11 | 1970-05-14 | Agfa Ag | Stabilisierte Supersensibilisierung von Halogensilberemulsionen |
-
0
- BE BE398585D patent/BE398585A/xx unknown
-
1932
- 1932-09-14 DE DE1932I0045317 patent/DE703336C/de not_active Expired
-
1933
- 1933-09-13 FR FR43895D patent/FR43895E/fr not_active Expired
- 1933-09-14 GB GB25483/33A patent/GB425417A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2423217A (en) * | 1944-08-16 | 1947-07-01 | Gen Aniline & Film Corp | Photographic emulsions containing sensitizing dyes |
US5441866A (en) * | 1994-02-28 | 1995-08-15 | Minnesota Mining And Manufacturing Company | Sensitizers for photothermographic elements |
Also Published As
Publication number | Publication date |
---|---|
DE703336C (de) | 1941-03-06 |
FR43895E (fr) | 1934-09-07 |
BE398585A (ko) |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2078233A (en) | Photographic emulsion | |
US2345094A (en) | Organic cyanine base | |
US2454629A (en) | Polymethine dyes | |
US2918369A (en) | Non-ionic benzimidazole cyanine dyes containing in alpha-position a cyano group on the methenyl chain | |
US2177402A (en) | Dye from thiazolones | |
US2310640A (en) | Production of compounds of the cyanine type | |
US2170803A (en) | Photographic sensitizing dyes and their preparation | |
Hamer | 298. Some chain-substituted methincyanines and styryl dyes | |
GB425417A (en) | Process for sensitizing photographic emulsions | |
US2526632A (en) | Acid merocyanine dyes | |
US2541400A (en) | N, n'-alkylenecyanine dyes | |
US2177401A (en) | Dye from thio-oxazolediones | |
US2478367A (en) | N, n'-alkylenecyanine dyes | |
GB470726A (en) | Improvements in sensitising photographic silver-salt emulsions and in manufacture ofdyes therefor | |
US2179990A (en) | Dyes and process for the preparation thereof | |
US2882160A (en) | Sensitizing dyes from 2-methyl-5, 6-dihydro-4-cyclopentathiazoles | |
US2369646A (en) | Thioketones | |
GB1188784A (en) | Cyanine Dyes, Processes of Making them and Photographic Materials Containing them | |
GB477983A (en) | Improvements in or relating to the production of photographic sensitising compounds | |
US2441529A (en) | Carbocyanine dyes containing a mesocycloalkyl group | |
GB855686A (en) | Cyanine dyes and silver halide emulsions sensitised therewith | |
US3403149A (en) | Production of cyanine dyes | |
GB874011A (en) | Cyanine dyestuffs derived from 5-(ª--thienyl)-benzoxazoles and silver halide emulsion layers optically sensitised therewith | |
US2535993A (en) | Process of preparing trinuclear cyanine dyes | |
US2335861A (en) | Tricarbocyanine dyestuff and method of preparation |