Color photographic material

Details Color photographic material Color photographic material

1974-04-22

1979-08-07

Brown, J. Travis

Gas separation: apparatus

Electric field separation apparatus

With nonelectrical gas treating or conditioning means

96 9, 96 561, 96 565, 96 99, 96100R, G03C 176, G03C 140

Patent

active

041636708

ABSTRACT:
A color photographic material having on a support at least a photographic emulsion containing an excellent colored coupler represented by the general formula ##STR1## wherein R.sub.1 represents an aryl group or a heterocyclic group; R.sub.2 represents a phenyl group having a halogen atom, an alkoxy group, or an aryloxy group at the ortho-position to the imino group bonded to the 3-position of the pyrazolone ring of the coupler; and R.sub.3 represents a phenyl group having a hydroxyl group at the para-position to the azo group of the coupler; the coupler having a hydrophobic diffusion-resisting group in the molecule thereof.

REFERENCES:
patent: 3127269 (1964-03-01), Greenhalgh et al.
patent: 3476564 (1969-11-01), Mariani et al.
patent: 3576635 (1971-04-01), Sakamoto et al.
patent: 3790379 (1974-02-01), Oishi et al.
patent: 4070191 (1978-01-01), Imamura et al.

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