Radiation imagery chemistry: process – composition – or product th – Color imaging process – Using identified radiation sensitive composition in the...
Patent
1991-06-28
1993-12-21
Schilling, Richard L.
Radiation imagery chemistry: process, composition, or product th
Color imaging process
Using identified radiation sensitive composition in the...
430544, 430553, 430557, 430957, G03C 734, G03C 736
Patent
active
052720438
ABSTRACT:
A photographic DIR (development inhibitor-releasing) acetanilide coupler containing a carboxy group on the anilide moiety or a DIR naphtholic coupler containing on the 2-position a --CONH.sub.2 or --CONHCH.sub.3 group, capable upon oxidative coupling of forming a dye capable of being washed out of a photographic element upon processing, contains, in the coupling position, a coupling-off group comprising, in sequence, at least one ballasted linking group and at least one releasable development-inhibitor group (INH) which is a mercaptotetrazole group which enables a Log P in a pH 10 buffer of lower than -0.8. Such a DIR coupler is especially useful in a color photographic silver halide material and process which enables the dye formed from the DIR coupler to be washed out of the photographic material upon processing and enhanced color saturation through interimage effects.
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Begley William J.
Ling Hans G.
Eastman Kodak Company
Knapp Richard E.
Schilling Richard L.
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