Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1981-03-12
1982-07-27
Brown, J. Travis
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430552, 430553, G03C 176, G03C 140
Patent
active
043418643
ABSTRACT:
Cyan-forming color couplers according to the formula: ##STR1## wherein Z is hydrogen in the case of 4-equivalent couplers or a substituent that splits off upon color development, thus conferring a 2-equivalent character to the color coupler, and Y is a ballasting group. These cyan-forming color couplers can be incorporated in (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: 2895826 (1959-07-01), Salminen et al.
patent: 3880661 (1975-04-01), Lau et al.
patent: 4009035 (1977-02-01), Kojima et al.
patent: 4012258 (1977-03-01), Kojima et al.
patent: 4124396 (1978-11-01), Osborn
patent: 4299914 (1981-11-01), Fujimatsu et al.
Monbaliu Marcel J.
Van Poucke Raphael K.
Vandewalle Jan J.
Agfa-Gevaert N.V.
Breiner A. W.
Brown J. Travis
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