Patent transfer of polylactic acid in research and development of polymer materials and engineering in Tianjin University

Polylactic acid (PLA) is a polymer with excellent properties, biocompatibility and biodegradability. Polylactic acid is non-toxic, non-irritating, high in strength, easy to process and shape, excellent in biocompatibility, biodegradable and absorbable, and can be finally decomposed into water and carbon dioxide after enzymatic hydrolysis in vivo without polluting the environment. The high safety of PLA degradation and its degradation products in human body has been confirmed, and it is considered as the most promising medical polymer material. ? In recent years, many patents related to polylactic acid have been published in China patent database. With polylactic acid as the key word, it was searched in China patent database (165438+20041October 25th), and * * * found1/patents related to the preparation and application of polylactic acid, among which domestic applicants disclosed them.