(57) A photothermographic recording material comprising a support and a photo-addressable
thermally developable element, the photo-addressable thermally developable element
containing a mixture of a substantially light-insensitive silver salt of a monocarboxylic
acid and a substantially light-insensitive compound exclusive of silver succinate
represented by formula (I):
AgOOC-R
1-COOAg
wherein R
1 is a straight chain saturated or unsaturated hydrocarbon group with two or three
carbon atoms, optionally substituted with one or more of =O, =S, =CR
2R
3, an alkyl group, an aryl group, an amino group, a substituted amino group, a cycloalkyl
group, a hydroxy group, a thiol group, an alkyl sulphone group, an aryl sulphone group,
an alkoxy group, an acyloxy group, a thioalkyl group, a thioaryl, a carbamic ester
group, a halogen atom or a-(C=O)R
4 group; wherein if R
1 is substituted with two substituents selected from the group consisting of alkyl,
thioalkyl, substituted amino and alkoxy groups the two substituents may jointly comprise
the atoms necessary to complete a carbocyclic or heterocyclic ring; R
2 and R
3 are independently hydrogen or an alkyl, substituted alkyl, hydroxy or thiol; R
4 is a hydroxy, -OAg, alkoxy, alkyl or-NHR
6 group; R
6 is hydrogen or an alkyl group; an organic reducing agent for the mixture of substantially
light-insensitive organic silver salts in thermal working relationship therewith,
a photosensitive silver halide in catalytic association with said mixture of substantially
light-insensitive organic silver salts, and a binder; a photothermographic recording
process therewith.