Sulfur-substituted isothioureas in silver halide emulsions

Details Sulfur-substituted isothioureas in silver halide emulsions Sulfur-substituted isothioureas in silver halide emulsions

1978-01-20

1978-09-26

Louie, Jr., Won H.

Gas separation: apparatus

Electric field separation apparatus

Ionizing electrode details

96107, 96109, G03C 106, G03C 128

Patent

active

041166973

ABSTRACT:
Photographic silver halide emulsions which have their sensitivity increased by the addition of sulfur-substituted isothioureas of the formula; ##STR1## where R, R.sub.2, and R.sub.3 are organic radicals and R.sub.1 is an organic radical or H.

REFERENCES:
patent: 2410689 (1946-11-01), Sheppard et al.
patent: 2819965 (1958-01-01), Murray et al.
patent: 2939789 (1960-06-01), Dersch et al.
patent: 3046130 (1962-07-01), Dersch et al.
patent: 3364032 (1968-01-01), Jones
patent: 3954481 (1976-05-01), Ohlschlayer et al.

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