Method of making free edge-sealed film articles
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United States of America Patent
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Mar 8, 1994
Issued Date -
N/A
app pub date -
Dec 21, 1992
filing date -
Apr 23, 1990
priority date (Note) -
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Abstract
Free edge-sealed film articles and a method for making such, wherein the articles comprise a plurality of film portions and contain a free edge-seal between two of such portions, with one or both of the two free edge-sealed portions consisting essentially of a plurality of layers of diverse thermoplastic materials which are so ordered that on sealing the two portions together, the ordered layered film portion is curled toward the other of the two free edge-sealed portions.
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