Abstract: A low-temperature processable aliphatic polyester having 3-hydroxybutryates (3HB) and 4-hydroxybutyrates (4-HB) as basic repeated structures and an adjusted content of 4-hydroxybutyrates (4HB) is described. Articles based on the aliphatic polyesters are described and include a biodegradable wax, a medical device, a low-temperature hot melt, a non-woven cloth, a bioplastic, a drug carrier, a medical wrap, a medical fiber, a medical filament, a medical stent, or an orthopedic prosthesis. Methods for preparing the aliphatic polyesters are described.

Abstract: The present invention relates to a low-temperature processible aliphatic polyester and provides a polymer material comprising a polyhydroxyalkanoate copolymer having an adjusted content of 4-hydroxybutyrates (4HB). By utilizing the polymer material according to the present invention, the polymer material can serve as a binder as a short-term biological support, and can be applied as a hot melt material and a non-woven cloth material to impart tacky function to a material that is very sensitive to heat. In addition, the polymer material can be easily applied to various fields.