Patent ID: 6521397
Filing Date: 2003-02-18
Classification: G03C

Abstract:
A photographic element comprising a support bearing a light sensitive silver halide emulsion layer having associated therewith a dye forming coupler having a formula I, wherein:Ballast is a group containing at least 6 aliphatic carbon atoms, V represents a chain of three or four atoms, which may be substituted, selected from C, N, O and S sufficient to form an aromatic ring fused to the azole ring and n is 0 or 1, provided that if n is 0, Y and Ballast are directly attached to the 5-membered azole ring, W is an electron withdrawing group selected from the group consisting of â€”CN, â€”CONR1R2, â€”CO2R1, â€”NO2, and â€”SO2R1 where R1 and R2 are H or substituents; X is H or a coupling-off group; Y is H or a substituent; Z is an atom or group selected from >Nâ€”R, â€”Oâ€”, and â€”Sâ€”.