Quality test for polymerizable lactic acid and method for producing same

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United States of America Patent

PATENT NO 9416222
APP PUB NO 20140323682A1
SERIAL NO

14356038

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Abstract

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Disclosed is a test and test apparatus used to determine whether lactic acid is suitable for polymerization. The test apparatus comprises a) means for the polycondensation of the lactic acid to form a pre-polymer, b) means for depolymerization of the prepolymer to form dilactide, and c) means for carrying out analytical methods to determine at least one of the dilactide yield and/or the racemization, wherein lactic acid which is suitable for polymerization exhibits a dilactide yield of >90% and a racemization of <5%.

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Patent Owner(s)

Patent OwnerAddress
UHDE INVENTA FISCHER GMBH13509 BERLIN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ghanegaonkar, Shashank Leipzig, DE 2 4
Hagen, Rainer Berlin, DE 92 1494
Mühlbauer, Udo Berlin, DE 5 5
Schulze, Joachim Soest, DE 29 488
Techlin, Willi Berlin, DE 1 1
Tietz, Wolfgang Biendorf, DE 7 60

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