Novel magenta-forming color couplers and their use in photograph

Details Novel magenta-forming color couplers and their use in photograph Novel magenta-forming color couplers and their use in photograph

1977-02-14

1981-07-07

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430389, 430555, G03C 140, G03C 700

Patent

active

042775590

ABSTRACT:
Photographic color elements are described wherein one of the emulsion layers comprise a 4-phenylazo-2-pyrazolin-5-one coupler, the phenylazo group of which carries a p-alkoxy group of the formula:

REFERENCES:
patent: 2983608 (1961-05-01), Beavers
patent: 3364022 (1968-01-01), Barr
patent: 3671257 (1972-06-01), Otto et al.
patent: 3677764 (1972-07-01), Glockner et al.
patent: 3703375 (1972-11-01), Groet et al.

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