SILVER SALT PHOTOTHERMOGRAPHIC DRY IMAGING MATERIAL AND COPOLYMER COMPOSITION

摘要

The invention aims at providing a silver salt photothermographic dry imaging material which exhibits a high maximum density of an image and low fog and which is excellent in the stability of a silver image after heat development and in silver tone; a copolymer composition to be used in the material; and a process for the production thereof. A silver salt photothermographic dry imaging material bearing a photosensitive silver halide on at least one surface of the substrate, characterized by containing a polymer which bears at least one repeating unit derived from a monomer represented by the general formula (1) or (2) and which has a partial structure represented by the general formula (3) in the backbone chain.