Photographic material with imidazole cyan coupler

Details Photographic material with imidazole cyan coupler Photographic material with imidazole cyan coupler

1990-10-12

1991-05-21

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

050174673

ABSTRACT:
A silver halide photographic light sensitive material is disclosed, which is contains a novel cyan coupler excellent in spectral absorption, absorption coefficient and fastness. The cyan coupler is represented by the following Formula I; ##STR1## wherein R.sub.1 and R.sub.2 each represent a substituent; R.sub.3 represents a hydrogen atom, an alkyl group, an aryl group, a --COR.sub.4 group, a --COOR.sub.4 group, a ##STR2## group, an --SO.sub.2 R.sub.4 or an ##STR3## group in which R.sub.4 represents an alkyl group, an aryl group or a heterocyclic group, R.sub.5 represents a hydrogen atom or an alkyl group; X represents a hydrogen atom or a group capable of being split off upon reaction with the oxidized product of a color developing agent; m represent an integer of from 0 to 4; and n represents an integer of from 0 to 5.

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

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