Silver halide photographic light-sensitive material containing a

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

1986-04-14

1988-09-13

Shah, Mukund J.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430223, 430955, 430956, 430957, 430958, 430959, 430960, G03C 102, G03C 554

Patent

active

047709901

ABSTRACT:
A silver halide photographic material is disclosed. The material comprises a support and at least one silver halide emulsion layer formed thereon, in which said emulsion layer or other layer contains a compound represented by formula (I) ##STR1## wherein X represents an atomic group capable of releasing (Time).sub.t PUG by undergoing an oxidation-reduction reaction with CA.dbd.CR.sub.1 --CR.sub.2).sub.n C.sub.B ; C.sub.A and C.sub.B each represents a carbon atom; n represents an integer of 0, 1, 2, or 3; R.sub.1 and R.sub.2 each a hydrogen atom or a group substitutable for a hydrogen atom; EWG represents an electron withdrawing group having a Hammett's .sigma. para value greater than 0.3; --Time).sub.t PUG represents a group bonded to C.sub.B through an oxygen atom thereof; Time represents a timing group; t represents 0 or 1; and PUG represents a photographically useful group.

REFERENCES:
patent: 3725062 (1973-04-01), Anderson et al.
patent: 4248962 (1981-02-01), Lau
patent: 4409323 (1983-10-01), Sato et al.
patent: 4434225 (1984-02-01), Sugita et al.
patent: 4500633 (1985-02-01), Menjo et al.
patent: 4564587 (1986-01-01), Watanabe et al.
patent: 4628024 (1986-12-01), Kobayashi et al.

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