Radiation imagery chemistry: process – composition – or product th – Color imaging process – Using identified radiation sensitive composition in the...
Patent
1993-06-17
1994-09-27
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
053506677
ABSTRACT:
A photographic element contains a light-sensitive silver halide layer having associated therewith a coupler which is a pyrazolone compound with a coupling-off substituent at the -4-position, said compound having the formula: ##STR1## wherein each R.sup.1 is independently a substituted or unsubstituted alkylsulfonyl or arylsulfonyl group; each R.sup.2 and R.sup.3 is independently a substituent; R.sup.4, R.sup.5, and R.sup.6 are independently hydrogen or substituted or unsubstituted alkyl groups; m and n are independently 0 or 1 but both are not 0; x1 and x2 are independently 0 to 5; and y is 0 to 3; provided that each of R.sup.3, R.sup.4, R.sup.5, and R.sup.6 is selected such that the calculated log P of the thiophenol corresponding to the substituent at the 4-position of the pyrazolone is at least 4. The photographic element provides an improved combination of low continued coupling together with a magenta hue exhibiting a long wavelength of maximum absorption.
REFERENCES:
patent: 4463085 (1984-07-01), Mutsui et al.
patent: 4853319 (1989-08-01), Krishnamurthy et al.
patent: 4994359 (1991-02-01), Morigaki et al.
patent: 5250405 (1993-10-01), Merkel et al.
patent: 5256528 (1993-10-01), Merkel et al.
Clark Bernard Arthur J.
Merkel Paul B.
Singer Stephen P.
Stanley Paul Louis R.
Eastman Kodak Company
Kluegel Arthur E.
Wright Lee C.
LandOfFree
Photographic elements containing magenta couplers and process fo does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Photographic elements containing magenta couplers and process fo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photographic elements containing magenta couplers and process fo will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1265038