Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing
Patent
1994-09-21
1995-10-17
Baxter, Janet C.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Silver compound sensitizer containing
430581, 430583, 430584, 430588, 430592, 430595, G03C 112
Patent
active
054590256
ABSTRACT:
A novel silver halide photographic material is provided, comprising at least one methine compound having a methine dye and hydrazine covalently bonded to each other, two nitrogen atoms in said hydrazine being substituted by four substituents. In a preferred embodiment, the methine compound is represented by formula (I): ##STR1## wherein MET represents an atomic group; Q represents a divalent bonding group consisting of atoms or atomic group containing at least one of carbon atom, nitrogen atom, sulfur atom and oxygen atom; Hy represents an atomic group having a hydrazine structure represented by formula (II); k.sub.1 represents 0 or an integer 1 to 4; and k.sub.2 represents 0 or 1, and k.sub.3 represents an integer 1 to 4. ##STR2## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents an alkyl group, an aryl group or a heterocyclic group, with the proviso that Hy is substituted by at least one --(Q).sub.k2 -(MET).sub.k1. A novel methine compound is also provided represented by the general formula (I).
REFERENCES:
patent: 3679427 (1972-07-01), Lincoln et al.
patent: 4800154 (1989-01-01), Okazaki et al.
patent: 4971889 (1990-11-01), Ikeda et al.
patent: 5190853 (1993-03-01), Seto et al.
patent: 5340694 (1994-08-01), Hioki et al.
"The Theory of the Photographic Process" pp. 265-268 & pp. 259-265, Macmillan, 1966.
"Journal of the Physical Chemistry" vol. 94, 1990.
Derwart Abstracts of JP-A-2-67541 and JP-A-2-67542.
Baxter Janet C.
Fuji Photo Film Co. , Ltd.
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