Composition and method for making a cavitated bio-based film
AssigneeFrito-Lay North America, Inc.
InventorsRobert Nolan Cotton, Kenneth Scott Laverdure, Deepali Palta, Brad Dewayne Rodgers
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Abstract
Composition and method for making a multi-layer bio-based film having one or more cavitated layers. In one aspect, the multilayer flexible film has polylactic acid, an inorganic filler, and a cavitation stabilizer making up at least one film layer. In one aspect, the barrier web has a cavitated bio-based film layer. In another aspect, the print web has a cavitated bio-based film layer.
Claims7
A composite for use in a multi-layer flexible film, said composite comprising a cavitated bio-based layer comprising polylactic acid, an inorganic filler, and a bio-based cavitation stabilizer, wherein said cavitated bio-based layer comprises between 12% and 25% by weight of said inorganic filler, wherein said bio-based cavitation stabilizer comprises between about 5% and about 20% by weight of said cavitated bio-based layer, further wherein said cavitated bio-based layer has been oriented between 2× and 3× in a machine direction and between 4× and 7× in a transverse direction to produce said cavitated bio-based layer, wherein said cavitated bio-based layer comprises a density between about 16% and about 29% lower than a film substantially free of inorganic filler and bio-based cavitation stabilizer.
Dependencies are inferred from the claim text.