DIR couplers with hydrolyzable inhibitors for use in high pH pro

Details DIR couplers with hydrolyzable inhibitors for use in high pH pro DIR couplers with hydrolyzable inhibitors for use in high pH pro

1993-01-22

1994-05-10

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430223, 430564, 430957, G03C 732, G03C 734, G03C 718

Patent

active

053106423

ABSTRACT:
A silver halide photographic light-sensitive material for development in a development solution at a pH of at least 11.4 is disclosed. The material comprises a support having a silver halide emulsion layer comprising a compound capable of releasing a development inhibitor having a decomposition half-life in the range of above 4 to 225 hours at pH 10, said inhibitor after decomposition having substantially no photographic inhibitor properties, the compound having the formula:

REFERENCES:
patent: 4477563 (1984-10-01), Ichijima et al.
patent: 4782012 (1988-11-01), DeSelms et al.
patent: 4849325 (1989-07-01), Sasaki et al.
patent: 4937179 (1990-06-01), Hirano et al.
patent: 5004677 (1991-04-01), Ueda
patent: 5021333 (1991-06-01), Vetter et al.

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