Patent ID: 6582895
Filing Date: 2003-06-24
Classification: G03C

Abstract:
A silver halide photographic emulsion which comprises at least one methine compound represented by the following formula (I): wherein X1 represents a sulfur atom and X2 represents an oxygen atom; one of V1 and V2 represents a chlorine atom and the other represents a phenyl group; n1 and n2 each represents 1; L1, L2 and L3 each represents a methine group; l represents an integer of 0 to 3; M represents a counter ion for balancing electric charge; m represents a necessary number for balancing electric charge; and R1 and R2 each represents an alkyl group represented by any of the following formulae Ra, Rb, Rc, Rd or Re:-(Qa)rCONâˆ’SO2Raaâ€ƒâ€ƒ(Ra) -(Qb)sSO2Nâˆ’CORbbâ€ƒâ€ƒ(Rb) -(Qc)tCONâˆ’CORccâ€ƒâ€ƒ(Rc) -(Qd)uSO2Nâˆ’SO2Rddâ€ƒâ€ƒ(Rd) -(Qe)vXâ€ƒâ€ƒ(Re) wherein Raa, Rbb, Rcc and Rdd each represents an alkyl group, an aryl group, a heterocyclic group, an alkoxyl group, an aryloxy group, a heterocyclyloxy group, or an amino group; Qa, Qb, Qc, Qd and Qe each represents a divalent linking group; X represents SO3âˆ’, CO2âˆ’, or PO32âˆ’; and r, s, t, u and v each represents an integer of 1 or more, but when X represents SO3âˆ’, v represents 1 or 2.