Purification process for lactide

Details Purification process for lactide Purification process for lactide

2003-12-10

2011-11-08

Kosar, Andrew D (Department: 1622)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C203S099000, C528S354000, C528S357000, C528S361000, C528S480000, C528S481000, C528S484000, C528S485000

Reexamination Certificate

active

08053584

ABSTRACT:
The present case relates to a process for the purification of lactide from a crude lactide vapor product stream which process comprises a rectification/condensation step leading to a lactide-enriched condensate.

REFERENCES:
patent: 5023350 (1991-06-01), Bhatia
patent: 5117008 (1992-05-01), Bhatia et al.
patent: 5236560 (1993-08-01), Drysdale et al.
patent: 5521278 (1996-05-01), O'Brien et al.

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