Patent ID: 6420102
Filing Date: 2002-07-16
Classification: G03C,Y10S

Abstract:
A thermally developable material comprising a support having thereon:a) one or more thermally developable imaging layers comprising a binder and in reactive association, a non-photosensitive source of reducible silver ions and a reducing composition for said non-photosensitive source reducible silver ions, and b) a barrier layer that is on the same side of but farther from said support than said one or more imaging layers, said barrier layer comprising a film-forming acrylic or methacrylic acid ester or amide polymer having a molecular weight of at least 8000 g/mole and comprising recurring units derived from one or more ethylenically unsaturated polymerizable acrylic or methacrylic acid ester or amide monomers, wherein from about 15 to 100 mole % of the recurring units in said polymer are derived from such monomers that have hydroxy functionality.