METHODS FOR PREPARATION OF POLYESTER OLIGOMER VIA BASE CATALYSIS
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United States of America Patent
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Issued Date -
Nov 20, 2014
app pub date -
Mar 13, 2014
filing date -
Mar 13, 2013
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Abstract
The invention relates to methods and systems for preparing macrocyclic polyester oligomer (MPO) via base catalysis. It is found that base catalysts are effective in the production of MPO, and they reduce the potential for undesired byproducts such as furans (e.g., THF) and acetaldehyde, which result from diol side reactions.
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