Light-sensitive material with coupler containing triazole coupli

Details Light-sensitive material with coupler containing triazole coupli Light-sensitive material with coupler containing triazole coupli

1976-12-09

1979-04-17

Schilling, Richard L.

Gas separation: apparatus

Electric field separation apparatus

And serially arranged nonelectrical separator

96 663, 96 74, 96100N, G03C 700, G03C 140, G03C 530

Patent

active

041498860

ABSTRACT:
A photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer containing a development inhibitor releasing photographic coupler represented by the following general formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which can be the same or different, each represents a hydrogen atom, an aliphatic residue, an aromatic residue or a heterocyclic residue; and X represents a triazole ring which is released upon reaction of the coupler with an oxidation product of an aromatic primary amine developing agent and which exhibits development inhibiting effects; wherein the triazole ring is connected to the coupling position of the coupler through the nitrogen atom at the 1-position of the triazole ring.

REFERENCES:
patent: 2186735 (1940-01-01), Schneider et al.
patent: 3933500 (1976-01-01), Shiba et al.

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