Patent ID: 6787299
Filing Date: 2004-09-07
Classification: G03C

Abstract:
A photothermographic material comprising a light-insensitive aliphatic acid silver salt, a light-sensitive emulsion containing light-sensitive silver halide grains, a reducing agent for silver ions, a binder and a cross-linking agent, wherein the cross-linking agent is an aromatic polyisocyanate compound and the photothermographic material further comprises a compound selected from the compounds represented by the following formulas (1) through (3) wherein R11, R12 and R13 are each a hydrogen atom or a univalent substituent; X11 is an electron-donating heterocyclic group, a cycloalkyloxy group, a cycloalkylthio group, a cycloalkylamino group or cycloalkenyl group; wherein R21 is an alkyl group; R22 and R23 are each a hydrogen atom or a univalent substituent; X21 is an ejection-withdrawing group; L21 is an aromatic carbon-ring group; and n2 is 0 or 1; wherein X31 is an electron-withdrawing heterocyclic group, a halogen atom or a haloalkyl group; one of R31 and R32 is a hydrogen atom and the other one is a hydroxy group.