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: 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 compositions, such as photothermographic emulsions, include certain stabilizing polycarboxylic acid compounds and ascorbic acid or reductone reducing agents. These compositions can be used in thermally developable materials such as photothermographic materials to reduce changes in Dmin, Dmax, and photospeed upon storage. 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.