Silver halide photographic emulsion

Details Silver halide photographic emulsion Silver halide photographic emulsion

1974-12-10

1976-11-30

Brown, J. Travis

Gas separation: apparatus

Solid sorbent apparatus

Plural solid sorbent beds

96109, G03C 114

Patent

active

039947335

ABSTRACT:
A silver halide photographic emulsion containing the combination of (i) at least one cyanine dye wherein two basic 5-membered and/or 6-membered nitrogen-containing heterocyclic nuclei are linked by methine groups having an odd number of carbon atoms not exceeding 7 and the substituents on the nitrogen atoms in the heterocyclic nuclei are aliphatic groups or aromatic groups with at least one of the substituents on the nitrogen atom being an alkyl group having a sulfo group or a carboxyl group, and (ii) at least one substantially colorless nitrogen-containing heterocyclic organic base selected from the group consisting of a benzothiazole, a benzothiazolone, a naphthothiazole, a naphthothiazolone, and a quinolone in a quantity sufficient to supersensitize.

REFERENCES:
patent: 2398778 (1946-04-01), Carroll et al.
patent: 2533426 (1950-12-01), Carroll et al.
patent: 2848329 (1958-08-01), Chechak et al.
patent: 2945763 (1960-07-01), Jones
patent: 3669672 (1972-06-01), Shiba et al.

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