Radiation imagery chemistry: process – composition – or product th – Silver halide colloid tanning process – composition – or product
Patent
1996-08-06
1998-11-03
Chea, Thorl
Radiation imagery chemistry: process, composition, or product th
Silver halide colloid tanning process, composition, or product
430250, 430440, 430480, 430482, 430544, 430614, 430957, G03C 106
Patent
active
058306188
ABSTRACT:
A silver halide photographic material is provided which comprises a support having thereon at least one light-sensitive silver halide emulsion layer wherein said light-sensitive layer or another hydrophilic colloidal layer provided on the support contains a compound represented by formula (I) and a hydrazine derivative represented by formula (II): ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and each represents a hydroxyl, hydroxylamino, amino, alkylamino, arylamino, aralkylamino, alkoxy, phenoxy, alkyl, aryl, alkylthio, or phenylthio group, ##STR2## wherein R.sup.3 represents an aliphatic or aromatic group; R.sup.4 represents a hydrogen atom, or an alkyl, aryl, alkoxy, aryloxy, amino or hydrazino group; G.sup.1 represents a --CO--, --SO.sub.2 --, --SO--, --P(O)R.sup.4, --CO--CO--, thiocarbonyl or iminomethylene group; and A.sup.1 and A.sup.2 each represents a hydrogen atom, or one of A.sup.1 and A.sup.2 represents a hydrogen atom and the other represents a substituted or unsubstituted alkylsulfonyl, arylsulfonyl or acyl group. In a preferred embodiment, the silver halide photographic material contains a redox compound which undergoes oxidation to release a development inhibitor.
REFERENCES:
patent: 3960568 (1976-06-01), Sueyoshi et al.
patent: 4680257 (1987-07-01), Sato et al.
patent: 4933268 (1990-06-01), Ohno et al.
patent: 5134055 (1992-07-01), Okamura et al.
Chea Thorl
Fuji Photo Film Co. , Ltd.
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