Patent ID: 8716410
Filing Date: 2014-05-06
Classification: A61L,C08G

Abstract:
1. A biodegradable thermoplastic elastomer having the general formula wherein each A is an amorphous polymer having a glass transition temperature (Tg)>40° C. or a semi-crystalline polymer having a glass transition temperature (Tg) and/or melting temperature (Tm)>40° C.; wherein A comprises a polymer selected from the group consisting of poly(lactic acid) (PLA), poly-L-lactic acid (PLLA), poly-DL-lactic acid (PDLLA), poly(glycolic acid) (PGA), and poly(lactic-co-glycolic acid) (PLGA); wherein A may further comprise poly(caprolactone) (PCL); B is a copolymer of ε-caprolactone (CL) and at least one additional monomer selected from the group consisting of L-lactic acid (LLA), trimethyl carbonate (TMC), and glycolic acid (GA), or B is different to A and is poly(lactic-co-glycolic acid) (PLGA); and wherein the molar ratio of CL to the at least one additional monomer in the copolymer B is in the range between about 1:0.09 to about 1:1.