Thermally developable imaging materials
AssigneeCarestream Health, Inc.
InventorErin C. Pavlacky
Life of this patent
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Abstract
A thermally developable material comprising a support and having thereon at least one thermally developable imaging layers comprising in reactive association at least one non-photosensitive source of reducible silver ions, at least one reducing agent for said reducible ions, at least one binder comprising vinyl butyral repeat units and vinyl alcohol repeat units, and at least one crosslinker comprising an isocyanate group, where the thermally developable material has a composition that exhibits an equivalent weight ratio of the vinyl alcohol repeat units in the at least one binder to the isocyanate groups in the at least one crosslinker of at least 75.
Claims20
A thermally developable material comprising a support and having thereon at least one thermally developable imaging layers comprising in reactive association:
- at least one non-photosensitive source of reducible silver ions,
- at least one reducing agent for said reducible ions,
- at least one binder comprising vinyl butyral repeat units and vinyl alcohol repeat units, and
- at least one crosslinker comprising an isocyanate group,
- wherein the thermally developable material has a composition that exhibits an equivalent weight ratio of the vinyl alcohol repeat units in the at least one binder to the isocyanate groups in the at least one crosslinker of at least 75.
A photothermographic material comprising
- a support,
- an image forming layer comprising organic silver salt grains, light-sensitive silver halide grains, a reducing agent, a binder comprising hydroxyl repeat units, a cross-linker comprising an isocyanate group, and
- a surface protective layer on the image forming layer,
- wherein the photothermographic material has a composition that exhibits an equivalent weight ratio of the hydroxyl repeat units in the at least one binder to the isocyanate groups in the at least one crosslinker of at least 75.
A photothermographic material comprising a support and having thereon at least one thermally developable imaging layers comprising in reactive association:
- at least one non-photosensitive source of reducible silver ions,
- at least one reducing agent for said reducible ions,
- at least one binder comprising at least a first binder repeat unit comprising repeat units derived from at least one vinyl alcohol repeat unit, and
- at least one crosslinker comprising at least a first crosslinker repeat unit comprising repeat units derived from at least one diisocyanate repeat unit,
- wherein the photothermographic material has a composition that exhibits an equivalent weight ratio of the vinyl alcohol repeat units in the at least one binder to the diisocyanate repeat units in the at least one crosslinker of at least 75.
Dependencies are inferred from the claim text.