Patent ID: 6593069
Filing Date: 2003-07-15
Classification: G03C,Y10S

Abstract:
A monosheet type color photothermographic material comprising at least (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a reducing compound represented by the following formula (1) or (2), (d) a binder, (e) a coupler compound on the same side of a support, (f) an organopolyhalogen compound represented by the formula (18) on the side of the support having the components (a) to (e), and (g) a compound that contains a substituent and is represented by the formula (19) on the side of the support having the components (a) to (e): wherein, in the formula (1), V1 to V4 each independently represent hydrogen atom or a substituent, and V5 represents a substituted or unsubstituted alkyl group, aryl group or heterocyclic group: Q1â€”NHNHâ€”V6â€ƒâ€ƒ(2) â€ƒwherein, in the formula (2) , Q1 represents a 5- to 7-membered unsaturated ring bonding to NHNHâ€”V6 at a carbon atom, and V6 represents a carbamoyl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfonyl group or a sulfamoyl group; Q2&Parenopenst;Y&Parenclosest;nCZ1Z2Xâ€ƒâ€ƒ(18) â€ƒwherein, in the formula (18), Q2 represents a substituted alkyl group, an optionally substituted aryl group or an optionally substituted heterocyclic group, Y represents a divalent bridging group, n represents 0 or 1, Z1 and Z2 each independently represent a halogen atom, and X represents hydrogen atom or an electron-withdrawing group; wherein the substituent for the alkyl group of Q2 is at least one selected from the group consisting of alkenyl group, an alkynyl group, an aryl group, a heterocyclic group, an alkoxy-carbonyl group, an aryloxycarbonyl group, a carbamoyl group, an imino group, an imino group substituted at the N atom, a thiocarbonyl group, a carbazoyl group, a cyano group, a thiocarbamoyl group, an aryloxy group, a heterocyclyloxy group, an acyloxy group, an (alkoxy or aryloxy) carbonyloxy group, a sulfonyloxy group, an acylamino group, a sulfonamido group, a ureido group, a thioureido group, an imido group, an (alkoxy or aryloxy) carbonylamino group, a sulfamoylamino group, a semicarbazide group, a thiosemicarbazide group, an (alkyl or aryl) sulfonyl-ureido group, a nitro group, an (alkyl or aryl) sulfonyl group, a sulfamoyl group, a group containing phosphoric acid amide or phosphoric acid ester structure, a silyl group, a carboxyl group or a salt thereof, a sulfo group or a salt thereof, a phosphoric acid group, a hydroxyl group, and a quaternary ammonium group; wherein when Q2 is a heterocyclic 6-membered unsaturated monocycle, the monocycle is selected from the group consisting of pyridine, pyrimidine, pyrazine, and pyridazine; â€ƒwherein, in the formula (19), R31 represents a monovalent substituent, m represents an integer of 1 to 3, (R31)m means that 1-3 of R31 independently exist on the substituted phthalazine ring, and when m is 2 or more, adjacent two of R31 may form an aliphatic ring or an aromatic ring.