TOUGHENED POLYLACTIC ACID POLYMERS AND COPOLYMERS
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United States of America Patent
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Issued Date -
Dec 8, 2016
app pub date -
Aug 22, 2016
filing date -
Feb 7, 2006
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Abandoned
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Abstract
Toughened compositions of PLA and PLA copolymers are disclosed, which also have low tensile modulus values and greater elongation to break. These toughened compositions are prepared by blending PLA and PLA copolymers with poly-4-hydroxybutyrate, and copolymers thereof. Blending of poly-4-hydroxybutyrate with PLA and its copolymers has been found to impart advantageous properties to the resulting blend. These compositions, and objects formed from these compositions, have improved toughness and lower stiffness than polylactic acid polymers or copolymers alone.
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