Silver halide photographic material

Details Silver halide photographic material Silver halide photographic material

1994-03-03

1996-06-04

Wright, Lee C.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430576, G03C 129

Patent

active

055232035

ABSTRACT:
A silver halide photographic material spectral-sensitized with a combination of compounds represented by the following formulas (I), (II) and (III) or (IV): ##STR1## wherein R.sub.11, R.sub.12, R.sub.21, R.sub.22, R.sub.31, R.sub.32, R.sub.41 and R.sub.42 each represents an alkyl group; R.sub.33 represents a hydrogen atom, an alkyl group or an aryl group; Z.sub.11 and Z.sub.21 each represents an atomic group necessary for forming a benzene ring; Z.sub.12 represents an atomic group necessary for forming a benzthiazole or benzoselenazole nucleus; Z.sub.22 represents an atomic group necessary for forming a benzoxazole or naphthoxazole nucleus; Z.sub.31, Z.sub.32 and Z.sub.41 each represents an atomic group necessary for forming a five-membered or six-membered nitrogen-containing heterocyclic ring; X.sub.11, X.sub.21 and X.sub.31 each represents a charge-neutralizing counter ion; and m, n and p each represents 0 or 1.

REFERENCES:
patent: 2158882 (1939-05-01), Mees
patent: 2206076 (1940-07-01), Carroll
patent: 3718475 (1973-02-01), Shiba et al.
patent: 3887381 (1975-06-01), Shiba et al.
patent: 5236821 (1993-08-01), Yagihara et al.

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