Patent ID: 6132944
Filing Date: 2000-10-17
Classification: C07C,G03C,Y10S

Abstract:
A photographic element containing a light sensitive silver halide emulsion layer having associated therewith a coupler represented by Formula I: ##STR18## wherein COUP is a coupler parent group capable of reacting with an oxidized developer to form a first dye and is bonded at a coupling position to the group ##STR19## wherein X is O or NSO.sub.2 R; R is an alkyl or aryl group; and DYE is a releasable second dye that is after release the same color as the first dye and is linked to OC.dbd.X by a moiety of the DYE having Formula (IA): ##STR20## wherein R.sup.2 is a substituent; provided there is contained in the coupler of Formula I at least one group of Formula IB:--L.sub.m --Sol IBwherein L is a divalent linking group and m is 0 or 1; and Sol is a group containing an acidic hydrogen selected from the group consisting of --ArOH, --NHSO.sub.2 R.sup.1 and --SO.sub.2 NHR.sup.1, in which Ar is an aromatic group and each R.sup.1 is a substituent;provided further that the pKa of an acidic hydrogen of Sol is less than 8.8.