Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Adhesive outermost layer
Reexamination Certificate
2008-03-04
2008-03-04
Miggins, Michael (Department: 1772)
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Adhesive outermost layer
C428S500000, C428S347000, C428S035700, C428S220000, C428S035200, C428S523000
Reexamination Certificate
active
07338708
ABSTRACT:
A multilayer film is relatively thick has an oxygen transmission rate of at least 10,000 cc/mil/24 hour@STP. The film is particularly suited for the packaging of fresh seafood. The film has a first layer which is an outer film layer which serves as a heat seal layer, and a second layer which serves as a high O2-transmission layer. The first layer has a thickness of from 2 to 20 percent of a total thickness of the multilayer film. The second layer comprises at least one member selected from the group consisting of: (i) ethylene/butyl acrylate copolymer, (ii) homogeneous ethylene/alpha-olefin copolymer having a density of from 0.86 to 0.91 g/cc; (iii) heterogeneous ethylene/alpha-olefin copolymer having a density of from 0.89 to 0.91 g/cc; (iv) ethylene/methyl acrylate copolymer having a methyl acrylate mer content of from 20 to 24 mole percent; (v) ethylene/vinyl acetate copolymer having a vinyl acetate mer content of from 10 to 30 mole percent; and (vi) styrene butadiene block copolymer. The at least one second layer having a thickness of from 80 to 98 percent of the total thickness of the multilayer film. The film is at least 1.5 mils thick. The invention also pertains to a bag made from the film, as well as a packaged product utilizing the film.
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Kendrick Clifford A.
Wilburn Daniel S.
Cryovac Inc.
Hurley Jr. Rupert B.
Miggins Michael
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