Silver halide photographic material

Details Silver halide photographic material Silver halide photographic material

1994-04-15

1996-07-09

Chea, Thorl

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430588, G03C 118

Patent

active

055344038

ABSTRACT:
A silver halide photographic material comprising at least one compound represented by the following formula (I) or formula (II): ##STR1## wherein R.sub.11, R.sub.12, R.sub.21 and R.sub.22 each represents a substituted or unsubstituted alkyl group; R.sub.13 and R.sub.23 each represents a hydrogen atom, a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group; V.sub.1, V.sub.2, V.sub.3, V.sub.4, V.sub.5, V.sub.6, V.sub.7, V.sub.8, V.sub.9, V.sub.10, V.sub.11, V.sub.4A, V.sub.5A, V.sub.6A, W.sub.01 and W.sub.02 each represents a hydrogen atom or a substituent, wherein at least one of V.sub.7 and V.sub.11 is a substituent; W.sub.21 represents a substituent having two or more carbon atoms; X.sub.1 and X.sub.2 each represents a charge-neutralizing counter ion; and m and n each represents a number of 0 or more necessary for neutralizing the molecular charge.

REFERENCES:
patent: 4172730 (1979-10-01), Hinata et al.
patent: 4970141 (1990-11-01), Ikegawa et al.
patent: 5238806 (1993-08-01), Hashi
patent: 5290655 (1994-03-01), Iwasaki
patent: 5439789 (1995-08-01), Kato et al.

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