Abstract: A direct thermographic material has one or more thermographic layers on a polymeric support. Two protective layers are disposed over the one or more thermographic layers and both protective layers comprise the same polymer as the predominant binder. The outermost protective layer contains one or more lubricants while the innermost protective layer is substantially free of lubricants.

Abstract: Black-and-white, dry processable thermally developable materials have increased stability after imaging with the incorporation of at least 0.0001 mol/m2 of a thermal solvent having one or more >N—C(?O)— groups. Such thermally developable materials include both thermographic and photothermographic materials.

Abstract: Photothermographic materials contain one or more blocked aliphatic thiol compounds in an amount of at least 1 mg/m2 as stabilizers. These compounds have a calculated octanol-water partition coefficient (c log P value) of 2.0 or greater, and an N value equal to or greater than 6.5.

Abstract: Thermally developable materials such as photothermographic and thermographic materials contain one or more boron compounds in an amount of at least 0.001 g/m2 as stabilizers. These boron compounds have an X—B(OL)-Z moiety.

Abstract: Solid particle dispersions of certain ascorbic acid esters are prepared in the presence of at least 0.5 and less than 50 weight % of a particle growth modifier based on the weight of the ascorbic acid ester. The particle growth modifier is an alkyl carboxylic acid having from 8 to 22 carbon atoms, an alkyl ester of glycerol wherein the alkyl moiety has from 8 to 22 carbon atoms, or a stereoisomer of the ascorbic acid ester. The resulting aqueous solid particle dispersion can be used in various thermally developable materials including thermographic and photothermographic materials.

Abstract: Thermally developable compositions, such as thermographic and photothermographic emulsions, include certain ascorbic acid derivatives as reducing agents for the reducible silver ions in the non-photosensitive source of silver. These compositions can be used to prepare thermographic and photothermographic materials having improved post-processing stability. Such materials can have thermally developable imaging layers on one or both sides of the support and be arranged in association with one or more phosphor intensifying screens in imaging assemblies. These imaging assemblies can be exposed to X-radiation and thereby excited to form a latent image in the photothermographic material that can eventually be used for medical diagnosis.

Abstract: Thermally developable photothermographic materials comprise a backside layer that includes a backside stabilizer to reduce fog formation in high humidity conditions, thereby providing improved shelf stability. Useful backside stabilizers include an amine organic base whose conjugate acid has a pKa greater than 5. These backside stabilizers can be provided particularly in non-photosensitive compositions that include an antihalation composition.