Barrier stack
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United States of America Patent
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May 18, 2004
Grant Date -
Apr 3, 2003
app pub date -
Sep 28, 2001
filing date -
Sep 28, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A barrier stack for sealing devices is described. The barrier stack includes at least first and second base layers bonded together with a high barrier adhesive. A base layer includes a flexible support coated on at least one major surface with a barrier layer. The adhesive advantageously seals defects, such as pinholes in the barrier layer, thus improving the barrier properties.
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