Multilayered biodegradable film
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United States of America Patent
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Jun 27, 2017
Grant Date -
Nov 7, 2013
app pub date -
Oct 19, 2011
filing date -
Oct 22, 2010
priority date (Note) -
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Abstract
A multilayered biodegradable film comprising at least one first resin layer and at least one second resin layer, wherein the first and second resin layers are alternately layered; the first resin layer comprises a polylactic acid-based polymer; the second resin layer comprises an aliphatic polyester-based resin or an aliphatic-aromatic copolymerized polyester-based resin; and the film has a coloring peak value of 0.3 or less, a haze of 10% or less, and an elastic modulus of 300 kgf/mm2 or less, exhibits improved flexibility and transparency, which is useful for environmentally friendly packaging.
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