Silver halide photothermographic composition and element...

Details Silver halide photothermographic composition and element... Silver halide photothermographic composition and element...

B - Operations, Transporting

41

M

96/219, 96/99

B41M 5/26 (2006.01) G03C 1/498 (2006.01)

Patent

CA 1097528

Abstract of the Disclosure Improved photographic speed is provided in a photothermographic material comprising in reactive association (a) photosensitive silver halide, (b) an oxidation-reduction image-forming combination comprising (i) a long-chain fatty acid silver salt oxidizing agent, with (ii) a reducing agent, (c) a synthetic polymeric binder, and (d) a photographic speed increasing concentration of a non-dye, thione speed increasing addendum selected from certain 2-thio-2,4- oxazolidinedione photographic speed increasing compounds. A developed image having increased photographic speed can be provided in the described photographic material, after imagewise exposure, by heating the element to moderately elevated temperatures. - 1 -

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