Process for the production of poly(lactic acid)
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United States of America Patent
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Aug 6, 1996
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app pub date -
Jan 27, 1995
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Aug 4, 1992
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Abstract
Poly(lactic acid) with a high molecular weight is produced by the polycondensation reaction of the free monomer carried out in the presence of a catalytically effective quantity of iron ions. High molecular weight poly(lactic acid) and lactide are obtained as the principal products.
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