Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1992-09-08
1993-11-23
Ivy, C. Warren
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C07D31912
Patent
active
052645924
ABSTRACT:
Generally, polylactic acid is prepared by the ring opening polymerization of lactide. However, to obtain a high molecular weight polylactic acid it is necessary to start with a lactide having a high degree of purity. Lactide may be economically brought to the required degree of purity using melt recrystallization techniques.
REFERENCES:
patent: 5127921 (1992-07-01), Griffiths
Fridman Israel D.
Kwok John
Camelot Technologies Inc.
Harang Bruce E.
Ivy C. Warren
Owens A. A.
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