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US 7,781,034 B2Granted
Composite modular barrier structures and packages
AssigneeSigma Laboratories of Arizona, Inc.
InventorsAngelo Yializis, Michael G. Mikhael
Life of this patent
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AssigneeSigma Laboratories of Arizona, Inc.
InventorsAngelo Yializis, Michael G. Mikhael
Estimating the term…
A composite multi-layer barrier is produced by first vapor depositing a barrier under vacuum over a substrate and then depositing an additional barrier at atmospheric pressure in a preferably thermoplastic layer. The resulting multi-layer barrier is used to coat an article in a lamination process wherein the thermoplastic layer is fused onto itself and the surface of the article. The vacuum-deposited barrier may include of a first leveling polymer layer followed by an inorganic barrier material sputtered over the leveling layer and of an additional polymeric layer flash evaporated, deposited, and cured under vacuum. The thermoplastic polymeric layer is then deposited by extrusion, drawdown or roll coating at atmospheric pressure. The resulting multi-layer barrier may be stacked using the thermoplastic layer as bonding agent. Nano-particles may be included in the thermoplastic layer to improve barrier properties. A desiccant material may also be included or added as a separate layer.
A flexible and transparent moisture-barrier sheet comprising:
A flexible and transparent moisture-barrier sheet comprising:
A flexible and transparent moisture-barrier sheet comprising:
A flexible and transparent moisture-barrier sheet comprising:
A package for a device with a side requiring exposure to visible light, comprising:
A package for a device with a side requiring exposure to visible light, comprising:
Dependencies are inferred from the claim text.