Photographic elements containing sulfite releasable release comp

Details Photographic elements containing sulfite releasable release comp Photographic elements containing sulfite releasable release comp

1992-05-29

1994-02-01

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Using identified radiation sensitive composition in the...

430202, 430222, 430223, 430226, 430445, 430446, 430434, 430448, 430543, 430544, 430564, 430566, 430611, 430512, 430559, 430955, 430957, 430958, 430959, G03C 554, G03C 732, G03C 526, G03C 106

Patent

active

052831620

ABSTRACT:
There are described photographic elements containing novel release compounds which release a blocked photographically useful group, such as a blocked development inhibitor. The blocking group is removed during processing as a result of reaction with sulfite ion contained in one of the processing baths.

REFERENCES:
patent: 4248962 (1981-02-01), Lau
patent: 4409323 (1983-10-01), Sato et al.
patent: 4684604 (1987-08-01), Harder
patent: 4871654 (1989-10-01), Van Maele et al.
patent: 5034311 (1991-07-01), Slusarek et al.
patent: 5055385 (1991-10-01), Slusarek et al.
patent: 5116712 (1992-05-01), Matsushita et al.

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