Patent Number: 6,310,218

Title: Melt crystallization purification of lactides

Abstract: Melt crystallization purification of lactide; and separation and purification of lactides existing in more than one isomeric form.

Inventors: O'Brien; William George (Newark, DE), Sloan; Gilbert Jacob (Wilmington, DE)

Assignee: E.I. du Pont de Nemours and Company

International Classification: C07D 319/00 (20060101); C07D 319/12 (20060101); C07D 493/00 ()

Expiration Date: 10/30/2018