Silver halide photographic material containing selenium compound

Details Silver halide photographic material containing selenium compound Silver halide photographic material containing selenium compound

1995-10-04

1996-07-02

Baxter, Janet C.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430603, 430607, 430611, G03C 109

Patent

active

055321208

ABSTRACT:
A silver halide photographic material comprises a silver halide emulsion layer provided on a support. The silver halide emulsion layer contains a selenium compound represented by the formula (I), (IIa) or (IIb): ##STR1## in which each of R.sup.11 and R.sup.12 is hydrogen, an aliphatic group, an aromatic group, a heterocyclic group, --OR.sup.13 or --NR.sup.14 R.sup.15 ; each of R.sup.21 and R.sup.31 is an aliphatic group, an aromatic group, a heterocyclic group, --OR.sup.23 or --NR.sup.24 R.sup.25 ; each of R.sup.22 and R.sup.32 is an aliphatic group, an aromatic group or a heterocyclic group; each of R.sup.13, R.sup.14, R.sup.15, R.sup.23, R.sup.24 and R.sup.25 is hydrogen, an aliphatic group, an aromatic group or a heterocyclic group; and Ch is S, Se or Te.

REFERENCES:
patent: 4914002 (1990-04-01), Inoue et al.
patent: 5306613 (1994-04-01), Yagihara et al.
patent: 5342750 (1994-08-01), Sasaki et al.

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