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AssigneeTepha, Inc.
InventorsSaid Rizk, David P. Martin, Kicherl Ho, Amit Ganatra, Simon F. Williams
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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.
A medical device comprising a toughened polymer composition comprising poly-4-hydroxybutyrate homopolymer or copolymer thereof wherein the composition further comprises at least one polylactic acid homopolymer or copolymer, and the amount of poly-4-hydroxybutyrate homopolymer or copolymer added is sufficient to increase the elongation to break of the composition to greater than the elongation to break of the polylactic acid homopolymer or copolymer.
Dependencies are inferred from the claim text.