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US 6,492,026 B1Granted
Smoothing and barrier layers on high Tg substrates
AssigneeBattelle Memorial Institute
InventorsGordon Lee Graff, Mark Edward Gross, Ming Kun Shi, Michael Gene Hall, Peter Maclyn Martin, Eric Sidney Mast
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Abstract
A high temperature substrate having improved properties. The substrate is a polymer substrate having a glass transition temperature greater than about 120° C., and at least one first barrier stack adjacent to the polymer substrate. The barrier stack includes at least one first barrier layer and at least one first polymer layer. A method for making the high temperature substrate with improved properties is also disclosed.
Claims19
A high temperature substrate having improved properties consisting essentially of:
- a polymer substrate having a glass transition temperature greater than 120° C.;
- and
- at least one first barrier stack consisting essentially of at least one first barrier layer and at least one first polymer layer, the at least one first barrier stack adjacent to the polymer substrate, wherein the oxygen transmission rate through the at least one first barrier stack is less than 0.005 cc/m2/day at 23° C. and 0% relative humidity.
Dependencies are inferred from the claim text.