Imaging element comprising an electrically-conductive layer cont

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified backing or protective layer containing

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430527, G03C 189

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active

060134275

ABSTRACT:
In accordance with one embodiment of the invention, an imaging element is disclosed comprising:(i) a support; (ii) at least one image forming layer; and (iii) an electrically-conductive layer comprising colloidal vanadium oxide intercalated with a water soluble vinyl-containing polymer. The electrically-conductive layer preferably additionally comprises a film-forming binder, which is distinct from the water soluble vinyl-containing polymer. The water soluble vinyl-containing polymer is preferably poly-N-vinylpyrrolidone, polyvinyl alcohol or an interpolymer thereof. Intercalation of vanadium oxide gels with water-soluble polymeric species in accordance with the present invention results in a vanadium oxide gel having improved solution stability and reduced impact of solution aging on conductivity, which improves manufacturing robustness and enables the use of many polymeric binders which could not be effectively used with conventional vanadium oxide gels in conductive layers of imaging elements.

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