Patent ID: 6562558
Filing Date: 2003-05-13
Classification: G03C

Abstract:
A photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a cyan â€œNB couplerâ€  having the formula (I): wherein:the term â€œNB couplerâ€  represents a coupler of formula (I) that forms a dye for which the left bandwidth (LBW) using spin-coating is at least 5 nm less than that of the same dye in solution form; X is selected from O, NR* or S and R* is an alkyl, carbocyclic or heterocyclic group; L is a linking group and a is 0 or 1; Y is H or a coupling-off group; Z* is a substituent group and p is 0 to 2; and R1 and R2 are independently selected H or substituents; provided that the combined sum of the aliphatic carbon atoms in R1, R2, R*, L and all Z* is at least 8.