Silver halide photographic light-sensitive material

Details Silver halide photographic light-sensitive material Silver halide photographic light-sensitive material

1989-06-20

1990-05-01

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430384, 430385, G03C 738

Patent

active

049217836

ABSTRACT:
A silver halide photographic light-sensitive material is disclosed which comprises a silver halide emulsion layer containing a novel cyan dye-forming coupler. The photographic material is improved in color reproducibility of color images formed thereon. The coupler is represented by the following Formula I. ##STR1## wherein A is an organic group combined with the imidazole ring by a carbon atom, a nitrogen atom, an oxygen atom or a sulfur atom contained in these group; B is an ##STR2## a --L--R.sub.4 group or a ##STR3## in which R.sub.2 and R.sub.3 are each a hydrogen atom or a substituent, provided that R.sub.2 and R.sub.3 are allowed to bind to complete a ring; L is an oxygen atom or a sulfur atom; R.sub.4 is a hydrogen atom or a substituent; and Z is a group of non-metal atoms necessary to form a five to seven-member heterocyclic ring which contains an oxygen atom, a sulfur atom or a nitrogen atom; X is a hydrogen atom, or a group capable of being split off upon reaction with the oxidation product of a color developing agent.

REFERENCES:
patent: 2296271 (1942-09-01), Dawson
patent: 4818672 (1989-04-01), Masukawa

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