Silver halide material containing a yellow color-forming coupler

Details Silver halide material containing a yellow color-forming coupler Silver halide material containing a yellow color-forming coupler

1975-08-14

1977-06-14

Brown, J. Travis

Gas separation: apparatus

Electric field separation apparatus

And serially arranged nonelectrical separator

96 564, 96 565, 96 74, 96100, 260244R, G03C 700, G03C 140

Patent

active

040295087

ABSTRACT:
A yellow color forming photographic coupler represented by the following general formula (I): ##STR1## wherein Q represents an aliphatic group, an alicyclic group, an aromatic group or a heterocyclic group; Y represents a hydrogen atom, an aliphatic group, an alicyclic group, an aromatic group or a heterocyclic group; R represents a divalent aliphatic group, a divalent alicyclic group, a divalent aromatic group or a divalent heterocyclic group; and Z represents an oxygen atom, a sulfur atom or a nitrogen atom substituted with an electron attracting group.

REFERENCES:
patent: 3619195 (1971-11-01), Van Campen
patent: 3620745 (1971-11-01), Seymour
patent: 3767653 (1973-10-01), Krapcho

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