Silver halide emulsion containing two-equivalent color couplers

Details Silver halide emulsion containing two-equivalent color couplers Silver halide emulsion containing two-equivalent color couplers

1977-05-31

1978-12-19

Brown, J. Travis

Gas separation: apparatus

Electric field separation apparatus

And serially arranged nonelectrical separator

96100R, G03C 700, G03C 140

Patent

active

041304276

ABSTRACT:
2-equivalent color couplers for yellow carrying at the coupling position via an oxygen atom a 5-membered N-containing unsaturated heterocyclic substituent, that is split off during oxidative coupling with an aromatic primary amine color developer and forms a competing coupler molecule.

REFERENCES:
patent: 2435550 (1948-02-01), Bauley
patent: 3227550 (1966-01-01), Whitmore et al.
patent: 3839044 (1974-10-01), Salminen et al.

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