GB388898A - Sensitising silver halide emulsions - Google Patents
Sensitising silver halide emulsionsInfo
- Publication number
- GB388898A GB388898A GB813/32A GB81332A GB388898A GB 388898 A GB388898 A GB 388898A GB 813/32 A GB813/32 A GB 813/32A GB 81332 A GB81332 A GB 81332A GB 388898 A GB388898 A GB 388898A
- Authority
- GB
- United Kingdom
- Prior art keywords
- methyl
- ethylate
- quinoline
- silver halide
- green
- 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
- G03C1/16—Methine and polymethine dyes with an odd number of CH groups with one CH group
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)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Abstract
A silver halide emulsion is sensitized for blue-green, green and yellowish-green light by the addition of an isocyanine dye containing a naphthothiazole or naphthoxazole nucleus. The quinoline nucleus may contain substituents such as methyl, ethoxy, dimethylamino or acetamino groups. The dyes are prepared by dissolving 1 molecular proportion of naphthothiazole-iodo-ethylate and 2 molecular proportions of quinoline-iodo-ethylate in methanol and heating with sodium ethylate. The naphthoxazole derivatives are prepared in an analogous way. In an example 2-methyl-6 : 7 - benzo - benzoxazole - methyl - iodide and 6-methyl-quinoline-ethyl-iodide in alcohol are boiled with sodium ethylate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE388898X | 1931-01-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB388898A true GB388898A (en) | 1933-03-09 |
Family
ID=6371333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB813/32A Expired GB388898A (en) | 1931-01-10 | 1932-01-11 | Sensitising silver halide emulsions |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR388898A (en) |
| GB (1) | GB388898A (en) |
-
1908
- 1908-04-04 FR FR388898A patent/FR388898A/en not_active Expired
-
1932
- 1932-01-11 GB GB813/32A patent/GB388898A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR388898A (en) | 1908-08-25 |
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