Cyan dye-forming couplers and photographic materials containing

Details Cyan dye-forming couplers and photographic materials containing Cyan dye-forming couplers and photographic materials containing

1988-02-25

1989-07-18

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430552, G03C 734

Patent

active

048493287

ABSTRACT:
Novel phenolic cyan dye-forming couplers are disclosed. The coupler compounds contain a p-cyanophenylureido group in the 2- position and an acylamino group in the 5- position of the phenolic ring. The acylamino group contains bulky substituents to provide steric interaction within the coupler molecule as well as within the dye molecule derived therefrom. The coupler compounds are useful in photographic recording materials.

REFERENCES:
patent: 4333999 (1982-06-01), Law
patent: 4579813 (1986-04-01), Aoki et al.
patent: 4609619 (1986-09-01), Katoh et al.

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