Stock material or miscellaneous articles – Hollow or container type article – Nonself-supporting tubular film or bag
Patent
1997-07-07
2000-05-09
Thibodeau, Paul
Stock material or miscellaneous articles
Hollow or container type article
Nonself-supporting tubular film or bag
428517, 426127, 53451, 53455, B32B 2516, B32B 2732, B65B 906
Patent
active
060601361
ABSTRACT:
A multilayer film has a first outer layer, an inner layer, and a second outer layer. The first outer layer comprises a homogeneous ethylene/alpha-olefin copolymer. The inner layer comprises a thermoplastic elastomer. The second outer layer comprises a second ethylene/alpha-olefin copolymer. The inner layer is between the first outer layer and the second outer layer, and is chemically different from the first outer layer and the second outer layer. The multilayer film has an O.sub.2 -transmission rate of from about 500 to 50,000 cc/m.sup.2 24hr STP, and a modulus of at least 60,000 psi. The multilayer film is especially useful for the packaging of O.sub.2 -sensitive products, such as produce. The high modulus of the film enhances its performance in form-fill-and-seal operations.
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Walden Mendy Joyce
Burleson David G.
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Gregory Leigh P.
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