Radiation imagery chemistry: process – composition – or product th – Color imaging process – Using identified radiation sensitive composition in the...
Patent
1993-05-24
1995-05-02
Wright, Lee C.
Radiation imagery chemistry: process, composition, or product th
Color imaging process
Using identified radiation sensitive composition in the...
430555, G03C 7384
Patent
active
054118417
ABSTRACT:
Improved hue, speed of dye formation and reduced staining are provided by a photographic element comprising a light-sensitive silver halide layer having associated therewith a 1-phenyl-3-anilino-pyrazolo-5-one coupler comprising a ballasted parent and a coupling-off group and containing substituents on the 1-phenyl and 3-anilino rings of the parent having Hammett sigma values which together sum to at least 1.1, the coupler further having at the 4-position of the pyrazolone ring a coupling-off group comprising a phenylthio group containing a carbonamido substituent in the position para to the sulfur on the phenylthio ring with the substituents on the phenylthio ring selected such that the calculated log P of the thiophenol corresponding to the coupling-off group is at least 4. ##STR1##
REFERENCES:
patent: 4463085 (1984-07-01), Mitsui
patent: 4483918 (1984-11-01), Sakai et al.
patent: 4555479 (1985-11-01), Sakai et al.
patent: 4853319 (1989-08-01), Krishnamurthy et al.
patent: 4900657 (1990-02-01), Crawley et al.
patent: 4904579 (1990-02-01), Mihayashi et al.
patent: 4952487 (1990-08-01), Renner et al.
patent: 4994359 (1991-02-01), Moriyuki et al.
patent: 5250407 (1993-10-01), Kase
Clark Bernard A. J.
Merkel Paul B.
Singer Stephen P.
Stanley Paul L. R.
Eastman Kodak Company
Kluegel Arthur E.
Wright Lee C.
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