Patent ID: 7105288
Filing Date: 2006-09-12
Classification: G03C

Abstract:
1. A photothermographic material comprising on a support a light-sensitive layer comprising a light-sensitive emulsion containing a light-insensitive organic silver salt and a light-sensitive silver halide, a reducing agent for silver ions represented by formula (A-4) and a binder, wherein the photothermographic material further comprises a compound represented by the following formula (A-1) or (B) and a compound represented by the following formula (A-2): wherein X 1 and X 2 are each a hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, a cycloalkenyl group, an aryl group, a heterocyclic, a group which is linked to an aryl or heterocyclic group or COOM, in which M is a hydrogen atom or a cation, provided that at least one of X 1 and X 2 is COOM; R 1 , R 2 and R 3 are each a hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, a cycloalkenyl group, an aryl group, a heterocyclic group or a group which is attached to an aryl or heterocyclic group; wherein X 5 , X 6 , X 7 , and X 8 are each a halogen atom; B 1 and B 2 are each a hydrogen atom, a halogen atom or a substituent; p is 1, 2 or 3; J is an alkylene group, a cycloalkylene group, an alkenylene group, an alkynylene group, or a trivalent or tetravalent group derived from an alkylene group, a cycloalkylene group, an alkenylene group or an alkynylene group; G 1 and G 2 are each a linkage group, provided that when both G 1 and G 2 are —SO 2 —, p is 2 or 3; wherein Z is —S—or —C(R 33 ) CR 33 ′), in which R 33 and R 33 ′ are each a hydrogen atom or a substituent; R 31 , R 32 , R 31 ′ and R 32 ′ are each a substituent; X 31 and X 31 ′ are each a hydrogen atom or a substituent; wherein R 11 and R 12 are each a hydrogen atom, a 3- to 10-membered non-aromatic ring group or a 5- or 6-membered aromatic ring group, provided that R 11 and R 12 are not hydrogen atoms at the same time; R 13 and R 14 are each a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, a cycloalkenyl, an aryl group or a heterocyclic group; Q is a substituent; n is an integer of 0, 1 or 2.