FR897483A - Improvements to chromogenic couplers for color photography - Google Patents
Improvements to chromogenic couplers for color photographyInfo
- Publication number
- FR897483A FR897483A FR897483DA FR897483A FR 897483 A FR897483 A FR 897483A FR 897483D A FR897483D A FR 897483DA FR 897483 A FR897483 A FR 897483A
- Authority
- FR
- France
- Prior art keywords
- color photography
- chromogenic couplers
- chromogenic
- couplers
- photography
- 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB196140A GB539325A (en) | 1940-02-01 | 1940-02-01 | Improvements in coupling components for photographic colour development processes |
Publications (1)
Publication Number | Publication Date |
---|---|
FR897483A true FR897483A (en) | 1945-03-22 |
Family
ID=9731097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR897483D Expired FR897483A (en) | 1940-02-01 | 1943-08-24 | Improvements to chromogenic couplers for color photography |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR897483A (en) |
GB (1) | GB539325A (en) |
-
1940
- 1940-02-01 GB GB196140A patent/GB539325A/en not_active Expired
-
1943
- 1943-08-24 FR FR897483D patent/FR897483A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB539325A (en) | 1941-09-05 |
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