Modified atmosphere films useful in the packaging of perishable

Details Modified atmosphere films useful in the packaging of perishable Modified atmosphere films useful in the packaging of perishable

1996-11-06

2000-07-11

Robinson, Ellis

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

2065241, 2065246, 426127, 428 349, 428 352, 428 355, 428515, 525 53, 525240, 526943, B32B 702, C08J 518, C08L 2304

Patent

active

060869674

ABSTRACT:
The subject invention pertains to a film structure suitable for the packaging of perishable food, comprising at least one film layer which in turn comprises a blend of at least one homogeneous linear or substantially linear ethylene polymer and at least one polypropylene polymer, wherein the film structure is characterized as having a 2% secant modulus which is at least 8% greater than a comparable film structure prepared without the polypropylene polymer, an oxygen transmission rate of at least 700 cc(at STP)-mil/100 in..sup.2 -day-atm at 25.degree. C. The inventive film structures exhibit an optimized balance of properties, making them especially useful in modified atmosphere packages for perishable goods. The inventive films are particularly suited for the packaging of fresh fruits, vegetables, and other perishable items which would benefit from controlled access to environmental oxygen.

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