BIODEGRADABLE POLYESTER OLIGOMER

摘要

PROBLEM TO BE SOLVED: To provide novel biodegradable polyester oligomers capable of combining high biocompatibility with good sealing and adhesion properties. SOLUTION: A biodegradable polyester oligomer is prepared from a 2-10C hydroxycarboxylic acid so as to adjust the average molecular weight to not less than 200 by using a polyfunctional alcohol (e.g. glycerol), and is treated with a specific content of a solvent. This oligomer is used as a wound-covering attachment adhesive or a sealing agent.