BE428903A - - Google Patents
Info
- Publication number
- BE428903A BE428903A BE428903DA BE428903A BE 428903 A BE428903 A BE 428903A BE 428903D A BE428903D A BE 428903DA BE 428903 A BE428903 A BE 428903A
- Authority
- BE
- Belgium
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
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
- G03C7/32—Colour coupling substances
- G03C7/36—Couplers containing compounds with active methylene groups
- G03C7/38—Couplers containing compounds with active methylene groups in rings
- G03C7/381—Heterocyclic compounds
- G03C7/3815—Heterocyclic compounds with one heterocyclic ring
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE839998X | 1937-07-03 | ||
| GB21179/37A GB503318A (en) | 1937-07-03 | 1937-07-30 | Process of producing photographic colour pictures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE428903A true BE428903A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1938-07-30 |
Family
ID=32070931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE428903D BE428903A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1937-07-03 | 1938-06-30 |
Country Status (4)
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2436007A (en) * | 1944-05-12 | 1948-02-17 | Ilford Ltd | Dye intermediates for colour photography |
| US2418748A (en) * | 1944-06-07 | 1947-04-08 | Gen Aniline & Film Corp | Heterocyclic color couplers |
| US2421693A (en) * | 1944-09-16 | 1947-06-03 | Gen Aniline & Film Corp | Imidazolone color formers |
| US2532744A (en) * | 1945-07-04 | 1950-12-05 | Gen Aniline & Film Corp | Diazotype containing as the azo component a quaternary salt of 2-methyl-6-methoxy-benzoselenazole |
| BE470786A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1945-12-29 | |||
| BE561008A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1956-09-26 | |||
| US5362616A (en) * | 1991-12-19 | 1994-11-08 | Eastman Kodak Company | Chromogenic black-and-white photographic imaging systems |
| US5364747A (en) * | 1992-11-25 | 1994-11-15 | Eastman Kodak Company | Color correcting layers consisting essentially of at least one dye-forming coupler and gelatin in chromogenic black-and-white photographic imaging systems |
| US5491053A (en) * | 1994-12-23 | 1996-02-13 | Eastman Kodak Company | Chromogenic black-and-white motion picture film |
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1937
- 1937-07-30 GB GB21179/37A patent/GB503318A/en not_active Expired
-
1938
- 1938-06-24 US US215586A patent/US2186736A/en not_active Expired - Lifetime
- 1938-06-30 FR FR839998D patent/FR839998A/fr not_active Expired
- 1938-06-30 BE BE428903D patent/BE428903A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US2186736A (en) | 1940-01-09 |
| GB503318A (en) | 1939-03-30 |
| FR839998A (fr) | 1939-04-17 |