Silver halide photographic emulsion

Details Silver halide photographic emulsion Silver halide photographic emulsion

1975-07-21

1977-03-29

Brown, J. Travis

Gas separation: apparatus

Solid sorbent apparatus

Plural solid sorbent beds

96126, 96140, G03C 108

Patent

active

040147029

ABSTRACT:
A silver halide photographic emulsion containing a spectrally sensitizing amount of a sensitizing dye represented by the general formula (I) ##STR1## and a sensitizing dye represented by the formula (II) ##STR2## wherein Z.sub.1 and Z.sub.2 each is an atomic group necessary to complete a benzoxazole ring or a naphthoxazole ring; R.sub.1 is an alkyl group or an allyl group; R.sub. 2 is an alkyl group or an allyl group; R.sub.3 is an unsubstituted lower alkyl group, a hydroxyalkyl group or a carboxyalkyl group; R.sub.4 is same as R.sub.1 ; R.sub.5 is an alkyl group, an allyl group or a phenyl group; R.sub.6 is an alkoxycarbonylalkyl group, a hydroxyalkoxyalkyl group, an acyloxyalkoxyalkyl group, an N-(N,N-dialkylaminoalkyl)carbamoylalkyl group, an N-(N,N,N-trialkylammonium)carbamoylalkyl group or an N,N,N-trialkylammoniumalkyl group; X.sup.- is an acid anion; and n is 0 or 1.

REFERENCES:
patent: 3625698 (1971-12-01), Sakazume et al.
patent: 3698910 (1972-10-01), Sakazume et al.
patent: 3703377 (1972-11-01), Sakazume et al.

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