Imaging film with improved passivating layer containing a...

Details Imaging film with improved passivating layer containing a... Imaging film with improved passivating layer containing a...

G - Physics

03

C

96/190, 96/204,

G03C 1/00 (2006.01) G03C 1/705 (2006.01) G03C 5/56 (2006.01) G11C 17/00 (2006.01)

Patent

CA 1160498

IMAGING FILM WITH IMPROVED PASSIVATING LAYERS Abstract of Disclosure In an imaging film having a substrate over which is deposited a thin, opaque layer of an imaging material there is located on at least the outer side of said opaque imaging layer and, better still, on the opposite sides of said opaque layer of imaging material, thin, preferably vapor deposited, passivating layers forming a barrier against passage of oxygen and moisture. The passivating layer, or layers, is a flexible continuous amor- phous film having a thickness generally no greater than about 50 Angstroms (A°1) and preferably less than 200A° and comprising an alloy or mixture of a Group IV oxide, most advantageously germanium oxide, and a stabilizing agent or agents, more particularly one or more different oxides of a metal or a semiconductor or a metal fluoride which stabilizes the amorphous character and chemical inertness of the Group IV oxide even when subjected to the element of the surrounding atmosphere.

359425

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