Patent ID: 6528244
Filing Date: 2003-03-04
Classification: G03C

Abstract:
A method for preparing a photothermographic material comprising a support, a photosensitive layer disposed on at least one surface of the support and containing a photosensitive silver halide, and a non-photosensitive organic silver salt and a reducing agent therefor, wherein said non-photosensitive organic silver salt is a silver salt of a long chain aliphatic carboxylic acid having 10 to 30 carbon atoms,said method comprising the steps of: dispersing a primary binder and the silver halide in an aqueous solvent containing at least 30% by weight of water to form an aqueous dispersion, said primary binder being a polymer or a copolymer having an equilibrium moisture content of up to 2% by weight at 25Â° C. and RH 60%, coating the aqueous dispersion onto a support, and drying the coating to form the photosensitive layer.