Abstract
The invention relates to an improved process for the purification of lactide from a crude lactide vapour product comprising at least lactide, lactic acid, water and linear lactic acid oligomers.
| Original language | English |
|---|---|
| Patent number | EP 1 694 626 B1 |
| IPC | C07C 55/28 |
| Filing date | 10/12/03 |
| Publication status | Published - 23 Jun 2005 |
Keywords
- lactide
- purification
- poly lactic acid
- lactic acid