Polymeric electrically active conductive layer for...

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G - Physics

03

G

96/192, 96/220

G03G 5/026 (2006.01) G03C 1/498 (2006.01) G03G 13/00 (2006.01) G03G 17/00 (2006.01)

Patent

CA 1172893

Abstract of the Disclosure In an electrically activatable recording element, such as one comprising an electrically conductive support having thereon, in sequence: (a) a polymeric electrically active conductive (EAC) layer, (b) an electrically activatable recording layer comprising (A) a dye-forming coupler, and (B) an oxidation-reduction combin- ation comprising (i) an organic silver salt oxidizing agent consisting essentially of a silver salt of a 1,2,4-mercap- totriazole derivative, with (ii) a reducing agent which, in its oxidized form, forms a dye with the dye-forming coupler, (c) a photoconductive layer separated from (b) by an air gap of up to 20 microns, and (d) an electrically conductive layer; improvements are provided by means of a polymeric EAC layer (a) consisting essentially of a vinyl addition polymer, such as poly(methyl acrylate-co- vinylidene chloride). The recording element is room light handleable and provides a dye image and silver image by dry development processing.

367980

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