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公开(公告)号:US20120283391A1
公开(公告)日:2012-11-08
申请号:US13509566
申请日:2010-11-15
CPC分类号: C08G63/06 , A61L17/06 , A61L17/12 , A61L27/18 , A61L27/58 , C08G63/81 , C08G63/912 , C08G64/18 , C08G2261/126 , C08L67/04
摘要: The present invention relates to a biodegradable thermoplastic elastomer having the general formula A-B-A 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.; B is a copolymer of -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 lactic-co-glycolic acid (LGA); 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.
摘要翻译: 本发明涉及具有通式ABA的可生物降解的热塑性弹性体,其中每个A是具有玻璃化转变温度(Tg)> 40℃的无定形聚合物或具有玻璃化转变温度(Tg)和/ 或熔融温度(Tm)> 40℃。 B是ε-己内酯(CL)和至少一种选自L-乳酸(LLA),三甲基碳酸酯(TMC)和乙醇酸(GA))的另外的单体的共聚物,或B不同于A和 是乳酸 - 共 - 乙醇酸(LGA); 并且其中共聚物B中CL与至少一种另外的单体的摩尔比在约1:0.99至约1:1之间的范围内。