Silver halide photographic light-sensitive material

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

1984-04-17

1985-05-21

Downey, Mary F.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Two or more radiation-sensitive layers containing other than...

430448, 430544, 430566, 430570, 430607, 430955, 430957, 430958, 430959, 430960, G03C 146, G03C 102

Patent

active

045186855

ABSTRACT:
A silver halide photographic light-sensitive material which comprises a support having thereon a light-sensitive silver halide emulsion layer, wherein the photographic light-sensitive material contains a blocked photographic agent therein represented by formula (I): ##STR1## wherein A represents a photographic agent moiety which is bonded to a blocking moiety through a hetero atom or a group which is bonded to a blocking moiety through a hetero atom and capable of releasing a photographic agent upon a subsequent reaction after the group is released; Y represents a hydrogen atom or a substituent; and Z represents an atomic group necessary to form a carbocyclic ring or a heterocyclic ring.
The precursor of photographic agent is completely stable during the preservation of the photographic light-sensitive material and releases a photographic agent at a desired time upon the processing of the photographic light-sensitive material. The precursor also exhibits its function to a substantial degree over a wide range of pH.

REFERENCES:
patent: 4350754 (1982-09-01), Bartels-Keith et al.
patent: 4371604 (1983-02-01), Van de Sande et al.
patent: 4395477 (1983-07-01), Abel
patent: 4420554 (1983-12-01), Ohashi et al.
patent: 4481277 (1984-11-01), Pfingston

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