Structurally durable, drapeable breathable barrier film compositions and articles
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United States of America Patent
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Dec 24, 2002
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N/A
app pub date -
Aug 24, 2001
filing date -
Aug 24, 2001
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Abstract
A thermoplastic film, and the articles thereof, consisting essentially of vinyl copolymer which exhibits sufficient structural durability and enhanced drapeability suitable for application as a breathable barrier layer in disposable end-use articles such as disposable hygiene and protective medical/industrial products. A preferred form of the vinyl copolymer are those selected from the ethylenic acrylates, with ethylene methyl acrylate being most preferred. Melt additives can be compounded with the ethylene methyl acrylate prior to extrusion include colorants, softening agents, UV stabilizers, and surface energy modifiers such as anti-static, hydrophobic and hydrophilic compounds.
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