The present invention provides a fiber comprising a biodegradable polymer. The present invention further provides a fiber comprising a biodegradable polymer composition containing a 3-hyroxybutyric acid moiety in the molecule thereof, which retains the properties of poly(3-hyroxybutyric acid) and has a high strength and a high melting point so as to be tolerant in practical use and also provides a process for preparing the fiber by melt spinning. Specifically, the fiber comprises a biodegradable polymer composition comprising a copolymerized polyester containing a stereospecific poly(3-hydoxybutyric acid) unit, a random copolymerized polyester containing poly(3-hydoxybutyric acid) or 3-hydoxybutyric acid units, and optionally a polyester containing specific units, and a process for preparing the fiber by melt spinning.
本发明提供了一种由可
生物降解聚合物组成的纤维。本发明进一步提供了一种由
生物可降解聚合物组合物组成的纤维,其分子中含有3-羟基
丁酸分子,该纤维保留了聚(3-羟基
丁酸)的特性,并具有高强度和高熔点,从而在实际使用中具有耐受性,本发明还提供了一种通过熔融纺丝制备该纤维的工艺。具体地说,该纤维包括一种
生物可降解聚合物组合物,该组合物由含有立体特异性聚(3-羟基
丁酸)单元的共聚聚酯、含有聚(3-羟基
丁酸)或 3-羟基
丁酸单元的无规共聚聚酯以及可选的含有特异性单元的聚酯组成,还包括一种通过熔融纺丝制备该纤维的工艺。