MULTILAYER FILM COMPRISING BIOPOLYMERS
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United States of America Patent
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Issued Date -
Sep 22, 2016
app pub date -
Jun 24, 2014
filing date -
Jun 27, 2013
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Abstract
A multilayer film includes a layer A and layer B. The layer A contains at least 15% by weight of poly(butylene adipate-co-terephthalate) (PBAT) and at least 60% by weight an aliphatic polyester. The aliphatic polyester is polylactic acid (PLA), polyhydroxyalkanoate, polycaprolactone, or polyesteramides. The layer B contains from 70 to 100% by weight of poly(butylene adipate-co-terephthalate) (PBAT). A process for preparing the multilayer film includes co-extruding layer A with layer B. The multilayer film may be used to coat a substrate.
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