Silver halide photographic light-sensitive material

Details Silver halide photographic light-sensitive material Silver halide photographic light-sensitive material

1993-04-08

1995-03-14

Chea, Thorl

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430582, 430583, 430584, 430585, 430586, 430587, 430588, 430576, 430577, G03C 108

Patent

active

053976932

ABSTRACT:
A silver halide photographic light-sensitive material contains a methine compound represented by the following formula: ##STR1## wherein Y.sup.1 is a group which is cleavable by a nucleophile; Z.sup.1 is --O--, --S--, or other; Z.sup.2 is --O--, --S--, --CR.sup.3 R.sup.4 (wherein each of R.sup.3 and R.sup.4 is alkyl or other), or other; A and B are each independently hydrogen, halogen, alkyl, aryl or a heterocyclic group; A and B may be linked to each other to form an unsaturated aliphatic ring, an aromatic ring or a heterocyclic ring; and Q.sup.1 is a methine or polymethine group which may have a heterocyclic group. A novel methine compound is also disclosed.

REFERENCES:
patent: 2231658 (1941-02-01), Brooker et al.
patent: 3904015 (1972-11-01), Brooker

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