Patent ID: 6027872
Filing Date: 2000-02-22
Classification: G03C

Abstract:
A photothermographic element comprising on a support a photosensitive silver halide, an organic silver salt, a reducing agent, and at least one compound of the formula (I):Z.sup.1 --(W.sup.1).sub.m1 --L.sup.1 --S--S--L.sup.2 --(W.sup.2).sub.m2 --Z.sup.2 (I)wherein each of L.sup.1 and L.sup.2 is a divalent linking group composed of an aliphatic hydrocarbon group, each of W.sup.1 and W.sup.2 is a divalent linking group containing at least one of oxygen, sulfur and nitrogen atoms, Z.sup.1 is a hydrogen, halogen, aliphatic hydrocarbon, aromatic or heterocyclic group, Z.sup.2 is an aromatic or heterocyclic group, letter m.sub.1 is equal to 0, 1, 2 or 3, and m is equal to 0, 1, 2 or 3.