Novel Process for the Preparation of Polylactic Acid
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United States of America Patent
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Feb 5, 2009
app pub date -
Sep 28, 2005
filing date -
Sep 28, 2005
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Abstract
The present invention describes a polyhydroxycarboxylic acid having bimodal or multimodal molar mass distribution, a process for the preparation thereof, the use of an aromatic diol having a single benzene ring for the preparation of polyhydroxycarboxylic acid, in particular polyhydroxycarboxylic acid having bimodal or multimodal molar mass distribution, as well as a method of preparing injection-molded goods or blown film, polymer blends, composite materials or nanocomposite materials using said polyhdroxycarboxylic acid.
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