PHOTOGRAPHIC ELEMENT AND PROCESS
PHOTOGRAPHIC ELEMENT AND PROCESS Novel pyrazoloazole dye-forming couplers containing at least one polyether group (A) comprising at least three ether (-O-) groups and terminated by a hydroxy, carboxy or sulfonamido group enables increased reactivity of the coupler in a photographic element and proce...
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Main Authors | , , |
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Format | Patent |
Language | English French |
Published |
30.04.1990
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Edition | 5 |
Subjects | |
Online Access | Get full text |
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Summary: | PHOTOGRAPHIC ELEMENT AND PROCESS Novel pyrazoloazole dye-forming couplers containing at least one polyether group (A) comprising at least three ether (-O-) groups and terminated by a hydroxy, carboxy or sulfonamido group enables increased reactivity of the coupler in a photographic element and process. The couplers are useful in color photographic silver halide materials and processes. |
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Bibliography: | Application Number: CA19892000931 |