Patent ID: 6492102
Filing Date: 2002-12-10
Classification: G03C

Abstract:
A silver halide emulsion comprising:(a) at least a compound represented by the following formula (1), (2), (3) or (4): wherein Y1 represents a hydrogen atom, a direct bond or an amidino group; W11 represents a hydrogen atom, an aliphatic hydrocarbon group, an aryl group, a heterocyclic group or an amidino group; V21 represents a hydrogen atom, an aliphatic hydrocarbon group, an aryl group, a heterocyclic group, RS group or an amidino group, in which R is an alkyl group, aryl group or a heterocyclic group; T1 and T21 each represent a bivalent aliphatic hydrocarbon linkage group or a direct bond; T11 represents a bivalent liking group comprised of aliphatic hydrocarbon group; J1, J2, J21, J22 and J23 each represent a bivalent linking group containing at least one of an oxygen atom, sulfur atom and nitrogen atom or a direct bond; J11 represents a bivalent linking group containing at least one of an oxygen atom, sulfur atom and nitrogen atom; Ar1 and Ar21 each represent an aromatic hydrocarbon group; ArH1, ArH11 and ArH21 each represent an aromatic hydrocarbon group or an aromatic heterocyclic group; k1 is an integer of 1 or 2; k21 is an integer of 2 to 4; q11, q12 and q21 are each an integer of 0 and 1 and q11+q12â‰ 0; Q represent a k21-valent linking group attached via the J22 group to any one of V21, T21 and ArH21; wherein ArH31 represents an aromatic hydrocarbon group or an aromatic heterocyclic group; T31 represents a bivalent aliphatic hydrocarbon linkage group or a direct bond; J31 represents a bivalent linking group containing at least one of an oxygen atom, sulfur atom and nitrogen atom or a direct bond; Ra, Rb, Rc and Rd each represent a hydrogen atom, an acyl group, an aliphatic hydrocarbon group, an aryl group or a heterocyclic group, or Ra and Rb, Rc and Rd, Ra and Rc, or Rb and Rd combine with each other to form a nitrogen containing ring; M31 represents an ion necessary to neutralize an intramolecular charge; and k31 represent the number of the ion necessary to neutralize an intramolecular charge; and (b) at least a compound represented by the following formula (S-1) or (S-2): wherein Z1, Z2 and Z11 each represent a nonmetallic atom necessary to form a 5- or 6-membered nitrogen containing heterocyclic ring; L1 through L9 and L11 through L15 each represent a methine group; R1, R2, R11 and R12 each represent an aliphatic group; R13 and R14 each represent a hydrogen atom, a substituent group or an atomic group necessary to form a condensed ring between R13 and R14; X1 and X11 each represent an ion necessary to balance with an intramolecular charge; p1 and p11 represent the number necessary to balance with an intramolecular charge; and m1, m2 and n11 are each an integer of 0 or 1.