Yellow couplers for photographic elements and processes

Details Yellow couplers for photographic elements and processes Yellow couplers for photographic elements and processes

1991-02-07

1992-06-02

Wright, Lee C.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430557, 430558, G03C 736

Patent

active

051185997

ABSTRACT:
Novel yellow image dye-forming couplers are disclosed. The couplers comprise an active open-chain keto-methylene group, an anilide group attached to the keto-methylene group, and a cyclic ether group attached to the keto-methylene group. The cyclic ether group comprises two oxygen atoms. Either the anilide group or the cyclic ether may carry a ballast group capable of immobilizing the coupler in the layer in which it is contained. Color photographic elements incorporating the novel couplers are also disclosed.

REFERENCES:
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patent: 2359274 (1944-09-01), Wilson
patent: 2407210 (1946-09-01), Weissberger et al.
patent: 2875057 (1959-02-01), McCrossen et al.
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patent: 3447928 (1969-06-01), Loria
patent: 3960570 (1976-06-01), Oishi et al.
patent: 4268571 (1981-05-01), Tschopp
patent: 4362806 (1982-12-01), Whitmore
"Yellow-Forming Colour Couplers", Research Disclosure, pp. 90-92, Feb. 1981.

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