Photothermographic composition containing a 2-...

Details Photothermographic composition containing a 2-... Photothermographic composition containing a 2-...

G - Physics

03

C

96/219, 96/99

G03C 1/72 (2006.01) G03C 1/498 (2006.01)

Patent

CA 1098359

Abstract of the Disclosure An improved photothermographic material can be prepared by sequentially mixing the following components: (1) a dispersion comprising a 2-mercaptobenzothiazole, 2-mercaptobenzimidazole, 2-mercaptobenzoxazole or 2- mercaptobenzoselenazole compound and a silver salt of certain heterocyclic thiones with (2) a reducing agent solution, (3) a binder, and (4) a silver halide photo- sensitive composition containing a spectral sensitizing dye, such as a symmetrical or unsymmetrical thiosulfato substituted benzimidazolocarbocyanine dye. A photo- thermographic material containing the described components can provide a developed image after imagewise exposure by merely heating the material to moderately elevated temperatures. -1-

272370

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