Silver halide photographic material

Details Silver halide photographic material Silver halide photographic material

1994-09-28

1999-09-21

Huff, Mark F.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430569, 430604, 430605, 430615, G03C 134, G03C 1035

Patent

active

059552522

ABSTRACT:
A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer containing silver halide grains having a silver chloride content of at least 70 mol % and containing a transition metal selected from the group consisting of elements belonging to Groups V to VIII of the Periodic Table in an amount of at least 1.times.10.sup.-7 mol per mol of silver, the silver halide grains being formed in the presence of a compound represented by following formula (I); ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4, which may be the same or different, each represents a hydrogen atom, an alkyl group, an aryl group, an amino group, a hydroxy group, an alkoxy group, an alkylthio group, a carbamoyl group, a halogen atom, a cyano group, a carboxy group, an alkoxycarbonyl group, or a heterocyclic residue; and R.sup.1 and R.sup.2 or R.sup.2 and R.sup.3 may combine with each other and form a 5-membered or 6-membered ring; and with the proviso that at least one of R.sup.1 and R.sup.2, however, represents a hydroxy group.

REFERENCES:
patent: 4933272 (1990-06-01), McDugle et al.
patent: 4939067 (1990-07-01), Takagi et al.
patent: 4956263 (1990-09-01), Ishigaki et al.
patent: 5070008 (1991-12-01), Maekawa et al.
patent: 5260183 (1993-11-01), Ishiguro et al.
patent: 5283169 (1994-02-01), Goto

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