Silver halide emulsion containing two-equivalent yellow coupler

Details Silver halide emulsion containing two-equivalent yellow coupler Silver halide emulsion containing two-equivalent yellow coupler

1976-05-12

1978-03-14

Brown, J. Travis

Gas separation: apparatus

Electric field separation apparatus

Collecting electrode details

96 562, 96 563, 96 564, 260289K, 2603323P, 26034345, 26034343, G03C 140

Patent

active

040789365

ABSTRACT:
The two-equivalent yellow coupler having the following formula has an extremely high reactivity, produces an image of high density in color development and causes little fogging and no ground coloration: ##STR1## wherein Coupl, R.sub.1 - R.sub.5 and A are as defined hereinafter.

REFERENCES:
patent: 3644498 (1972-02-01), Loria
patent: 3839044 (1974-10-01), Salminen et al.

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