Silver halide emulsions containing hexathiocane thiones as sensi

Details Silver halide emulsions containing hexathiocane thiones as sensi Silver halide emulsions containing hexathiocane thiones as sensi

1976-12-17

1977-10-18

Louie, Jr., Won H.

Gas separation: apparatus

Chromatography type apparatus

Having imbedded baffle or flow distributor

G03C 128

Patent

active

040544575

ABSTRACT:
Photographic silver halide emulsions are prepared which have their sensitivity increased by the addition of hexathiocane thiones having the basic structure: ##STR1## where R is an alkyl, unsaturated alkyl, or a saturated cyclic group, and R.sub.1 is aryl or substituted aryl.

REFERENCES:
patent: 3656955 (1972-04-01), Ushimaru et al.
F. Asinger, Angew. Chem. Internat. Edit., vol. 6, No. 11, p. 917-919, (1967).

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