A photothermographic material having, on at least one side of a support, an image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, and at least one non-photosensitive layer, wherein the photothermographic material contains a water-insoluble azomethine dye and a metal phthalocyanine dye represented by formula (PC-1): ##STR00001## wherein M represents a metal atom; R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, and R.sub.8 each independently represent a hydrogen atom or a substituent; and at least one of them is an electron-attracting group. The invention provides a photothermographic material which exhibits preferable image tone and excellent image storability.

 
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> Emulsion polymerization methods involving lightly modified clay and compositions comprising same

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