Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing
Patent
1997-01-16
2000-05-02
Chea, Thorl
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Silver compound sensitizer containing
430505, 430569, 430581, 430582, 430611, G03C 112, G03C 133
Patent
active
06057089&
ABSTRACT:
A silver halide photographic light-sensitive material having at least one silver halide emulsion layer formed on a support, wherein silver halide grains in the emulsion layer are reduction-sensitized and contain at least one compound represented by formula (I) below. ##STR1## In formula (I), R is an alkyl group represented as follows. ##STR2## Each of R.sub.a, R.sub.b, R.sub.c, ad R.sub.d represents an alkyl group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group, or an amino group, each of Q.sub.a, Q.sub.b, Q.sub.c, and Q.sub.d represents a methylene group, and each of r, s, t, and u represents an integer from 1 to 10.
Each of L.sub.1 and L.sub.2 represents a methine group. p1 represents 0 or 1. Z.sub.1 represents atom groups required to neutralize a 5- or 6-membered nitrogen-containing heterocyclic ring. M.sub.1 represents a charge-balancing counterion, and m.sub.1 represents a number from 0 to 10 required to form electric charge of a molecule. Q represents a methine group or a polymethine group substituted by a heterocyclic group or an aromatic group.
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Hioki Takanori
Matsumoto Jun
Nakamura Tetsuo
Chea Thorl
Fuji Photo Film Co. , Ltd.
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