Purification of glycolide

Details Purification of glycolide Purification of glycolide

C - Chemistry, Metallurgy

07

D

402/314, 260/373

C07D 319/12 (2006.01) C08G 63/06 (2006.01) C08G 63/08 (2006.01)

Patent

CA 1258466

PURIFICATION OF GLYCOLIDE Abstract A process for the purification of glycolide which comprises dissolving the glycolide to be purified in a suitable organic solvent, adding alumina to the resulting solution to form a slurry wherein the alumina is in intimate contact with the dissolved glycolide, stirring the slurry under controlled conditions for a period of 1 to 60 minutes, and filtering to remove the alumina and, if desired, evaporating to remove the solvent and recovering the purified glycolide; and the production of suture-grade polyglycolic acid by the polymerization of the resulting purified glycolide.

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