Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Patent
1980-08-04
1982-06-01
Louie, Jr., Won H.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
430273, 430275, 430276, 430496, 430523, 430525, 430524, 430495, 430961, 430271, G03C 176
Patent
active
043328806
ABSTRACT:
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, in a flexible continuous amorphous film having a thickness generally no greater than about 500 Angstroms (A.degree.) and preferably less than 200 A.degree. 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 elements of the surrounding atmosphere.
REFERENCES:
patent: 3560994 (1971-02-01), Wolff et al.
patent: 3889272 (1975-06-01), Lou et al.
patent: 4137078 (1979-01-01), Izui et al.
patent: 4211838 (1980-07-01), Izu et al.
Cannella Vincent D.
Izu Masatsugu
Energy Conversion Devices Inc.
Louie, Jr. Won H.
Norris Lawrence G.
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