GB835047A - Improvements in photographic silver halide emulsions - Google Patents
Improvements in photographic silver halide emulsionsInfo
- Publication number
- GB835047A GB835047A GB530/57A GB53057A GB835047A GB 835047 A GB835047 A GB 835047A GB 530/57 A GB530/57 A GB 530/57A GB 53057 A GB53057 A GB 53057A GB 835047 A GB835047 A GB 835047A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amino
- silver halide
- photographic silver
- dinitroanisole
- nitro
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
835,047. Photographic materials. KODAK Ltd. Jan. 7, 1957 [Jan. 5, 1956], No. 530/57. Class 98(2) A photographic silver halide emulsion layer or a layer contiguous thereto, contains an antifoggant of the general formula:- wherein R is hydrogen, methoxy, nitro or amino, R 1 is nitro or amino and Ra is hydrogen, nitro or amino. Compounds specified are 2-amino-3; 5-dinitroanisole, 2 ; 3-diamino-5-nitroanisole, 2 ; 3 ; 5-trinitroanisole, 3 ; 5-dinitroanisole, 3 ; 5-dinitroveratrole, 3 ; 4 ; 5-trinitroveratrole and 2 ; 4-diamino-3 ; 5-dinitroanisole.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US835047XA | 1956-01-05 | 1956-01-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB835047A true GB835047A (en) | 1960-05-18 |
Family
ID=22178763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB530/57A Expired GB835047A (en) | 1956-01-05 | 1957-01-07 | Improvements in photographic silver halide emulsions |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB835047A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3148066A (en) * | 1961-06-29 | 1964-09-08 | Eastman Kodak Co | Nitramino and nitrosamino compounds as antifoggants for photographic emulsions |
DE2245286A1 (en) * | 1971-09-17 | 1973-03-22 | Agfa Gevaert Ag | DEVELOPMENT OF PHOTOGRAPHICAL MATERIALS AT INCREASED TEMPERATURE |
-
1957
- 1957-01-07 GB GB530/57A patent/GB835047A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3148066A (en) * | 1961-06-29 | 1964-09-08 | Eastman Kodak Co | Nitramino and nitrosamino compounds as antifoggants for photographic emulsions |
DE2245286A1 (en) * | 1971-09-17 | 1973-03-22 | Agfa Gevaert Ag | DEVELOPMENT OF PHOTOGRAPHICAL MATERIALS AT INCREASED TEMPERATURE |
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