Patent ID: 6228571
Filing Date: 2001-05-08
Classification: G03C

Abstract:
A black and white photothermographic material capable of forming a black and white image through heat development, comprising:a support comprising a biaxially oriented polyethylene terephthalate film having a thickness of about 50 to 300 microns and having at least one photosensitive layer on one side of said support and a non-photosensitive layer on the side of the support opposite to the side having the photosensitive layer wherein,said at least one said photosensitive layer contains (I) a photosensitive silver halide, (ii) a non-photosensitive silver salt, and (iii) a reducing agent for the silver salt, said at least one photosensitive layer forming a black and white image through heat development, andsaid non-photosensitive layer is formed by applying a coating solution of a binder containing at least 75% by weight of a polymer latex selected from the group consisting of acrylic resins, vinyl acetate resins, polyester resins, polyurethane resins, rubbery resins, vinyl chloride resins, vinylidene chloride resins, polyolefin resins, and copolymers thereof, dispersed in a solvent containing at least 30% by weight of water and drying the coating.