Michelman, Inc.

Rymma Sushko

Robin Cooper

Freddy Enrique Boscan Guerra

Guillaume Putod

Francis Jacques

Kevin Gillie

Embodiments of the present disclosure provide a coated film structure including a substrate layer, an overcoat layer, and at least one intermediate layer disposed between the substrate layer and the overcoat layer. The substrate layer includes a polymer film substrate, the overcoat layer includes an acid-functional copolymer, and the at least one intermediate layer includes aluminum oxide. The coated film structure has an oxygen transmission rate of less than about 3.00 cm/m/day at 50% relative humidity and 23&#xb0; C. as measured in accordance with ASTM D3985. Further, the coated film structure has a water vapor transmission rate of less than 2.50 g/m/day at 90% relative humidity and 37.8&#xb0; C. as measured in accordance with ASTM E-398.

Acid-functional copolymer coatings for polymeric substrates

Embodiments of the present disclosure provide a coated film structure including a substrate layer, an overcoat layer, and at least one intermediate layer disposed between the substrate layer and the overcoat layer. The substrate layer includes a polymer film substrate, the overcoat layer includes polyvinyl alcohol, and the at least one intermediate layer includes aluminum oxide. The substrate layer has a thickness from 1 &#x3bc;m to 120 &#x3bc;m and the overcoat layer has a dry coat weight of from about 0.05 g/mto about 1.5 g/m. The coated film structure has an oxygen transmission rate of less than about 0.70 cm/m/day at 90% relative humidity and 23&#xb0; C. as measured in accordance with ASTM D3985. Further, the coated film structure has a water vapor transmission rate of less than 1.00 g/m2/day at 90% relative humidity and 37.8&#xb0; C. as measured in accordance with ASTM E-398.

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Windhof, Luxembourg

Rymma Sushko