Patent ID: 7067242

Claim:
A thermally developable material that comprises a support having on one side thereof, one or more thermally developable imaging layers comprising a binder and in reactive association, a non-photosensitive source of reducible silver ions, and a reducing agent composition for said non-photosensitive source reducible silver ions, and having disposed on the backside of said support a non-imaging backside conductive layer comprising particles and clusters of a conductive metal oxide in a one or more binder polymers, and a first layer disposed over said non-imaging backside conductive layer, wherein: 1) said backside conductive layer has a water electrode resistivity measured at 21.1° C. and 50% relative humidity of 1×10 12 ohms/sq or less, 2) the total amount of said one or more binder polymers in said backside conductive layer is at least 35 weight %, 3) said conductive metal oxide is present in an amount of less than 2 g/m 2 , 4) said backside conductive layer has a normalized average gap density of at least 0.03 (gaps/μm 3 )/(mg/ft 2 ), said gaps being at least 0.25 μm between conductive particles or clusters, and 5) said backside conductive layer has a normalized average metal oxide cluster size distribution of at least 0.012 (μm)/(mg/ft 2 ).