Patent ID: 6991894

Claim:
A black-and-white 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 that includes at least a silver carboxylate, and a reducing agent composition for said non-photosensitive source of reducible silver ions, said binder comprising from 0 to less than 50% of a polymer latex based on total binder weight, 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 coated predominantly from one or more polar organic solvents and containing as a scavenger dispersed in a hydrophobic binder, a water-insoluble compound having the following Structure I: M(X) n (I) wherein M is a first row transition metal cation, X is a hydroxyl group, or an organic carboxylate having a molecular weight of from about 55 to about 500, and n is an integer representing the positive charge on M, wherein the amount of said scavenger being from about 0.4 to about 1 mole per mole of said silver carboxylate.