Silver halide emulsion

Details Silver halide emulsion Silver halide emulsion

1993-08-19

1995-07-04

Chea, Thorl

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430577, 430591, 430592, 430600, 430607, 430944, G03C 120

Patent

active

054299209

ABSTRACT:
A silver halide emulsion containing at least one member of methine dyes represented by the following general formula (I): ##STR1## wherein MET represents an atomic group having a methine dye structure; Q represents a bivalent bonding group comprising at least one atom of carbon atom, nitrogen atom, sulfur atom and oxygen atom or an atomic group having at least one atom of carbon atom, nitrogen atom, sulfur atom and oxygen atom; Ar represents a group which has an aromatic character and derives from a polycyclic compound composed of 8 or more atoms excluding nitrogen atom; l.sub.1 represents 1 or 2; l.sub.2 represents 0 or 1; and l.sub.3 represents 1, 2, 3 or 4.

REFERENCES:
patent: 2481464 (1949-09-01), Anish
patent: 3541089 (1970-11-01), Heseltine et al.
patent: 3622317 (1971-11-01), Bird
patent: 4536473 (1985-08-01), Mihara
patent: 5223389 (1993-06-01), Matsunaga et al.
European Search Report 91 10 2008; Mar. 22, 1991; S. Magrizos; The Hague.

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