2,5-Diacylaminophenol-type color couplers and photographic eleme

Details 2,5-Diacylaminophenol-type color couplers and photographic eleme 2,5-Diacylaminophenol-type color couplers and photographic eleme

1987-11-24

1989-04-18

Shah, Mukund J.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430505, 430553, 558415, 558417, 560 34, 560 45, 564 51, 564 52, 564 54, 564 55, 564153, G03C 176, G03C 140

Patent

active

048227293

ABSTRACT:
Cyan-forming color couplers according to the formula: ##STR1## wherein Z is hydrogen or a coupling off group, R.sup.1 is hydrogen, a halogen atom, alkyl, or alkoxy, R.sup.2 is hydrogen or alkyl, R.sub.3 is hydrogen, a halogen atom, alkyl, alkoxy, alkylsulphonyl, alkanamidosulphonyl, alkoxycarbonyl, alkanamidocarbonyl, alkanamido, alkylsulphonamido, or cyano, R.sup.4 is a substituent standing at the 3- or 6-position of the phenol and selected from hydrogen, a halogen atom, and alkyl, and n is 0 or 1. These couplers can be incorporated into (a) red-sensitized silver halide emulsion layer(s) of a photographic multilayer color element or in a non-light-sensitive colloid layer in water-permeable relationship with the red-sensitized emulsion layer(s).

REFERENCES:
patent: 2698794 (1950-04-01), Godowsky
patent: 4334011 (1982-01-01), Aoki et al.
patent: 4341864 (1982-07-01), Vandewalle et al.
patent: 4362810 (1982-12-01), Usagawa et al.
patent: 4717647 (1988-01-01), Abe et al.
patent: 4725530 (1988-02-01), Kobayashi et al.

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