Silver halide emulsion containing photographic yellow coupler

Details Silver halide emulsion containing photographic yellow coupler Silver halide emulsion containing photographic yellow coupler

1975-05-16

1977-02-15

Brown, J. Travis

Gas separation: apparatus

Electric field separation apparatus

And serially arranged nonelectrical separator

96 29D, 96100, G03C 700, G03C 140

Patent

active

040080862

ABSTRACT:
An improved photographic system in which a new yellow coupler is employed. The yellow coupler has the formula, ##STR1## wherein X is a --N= or --CH= group; Cp is a residue formed by removing one hydrogen atom of the active methylene group of an acetanilide yellow coupler; n is an integer of 1 to 4; and R is a hydrogen or halogen atom, or an alkyl, alkoxy, alkylcarbonyl, aryl, arylcarbonyl, amino, acylamino, carboxyl, nitrile, aralkyl or aralkyloxy group, provided that in case n is 2 or more the R groups may be the same or different, and two adjacent R groups in combination may form a benzene ring.

REFERENCES:
patent: 3900483 (1975-08-01), Fujimatsu et al.

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