LIDDING STRUCTURE BASED ON POLYLACTIC ACID FILM
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United States of America Patent
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Issued Date -
Mar 21, 2013
app pub date -
Jun 27, 2012
filing date -
Sep 16, 2011
priority date (Note) -
Abandoned
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Abstract
Described is a multi-layer film suitable as sealable or peelable sheet specially used for closing foodstuff containers. This multi-layer sheet includes a polymeric substrate layer and a seal or a peel-seal layer. Preferably, the film includes at least three main component layers, namely in order, a polymeric base layer for mechanical strength, an ethylene polymer-based adhesive layer, and a heat seal layer comprising an ethylene copolymer, such as ethylene vinyl acetate copolymer.
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