METHOD FOR PREPARING A POLYESTER
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United States of America Patent
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Issued Date -
Apr 7, 2016
app pub date -
May 20, 2014
filing date -
May 23, 2013
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Abstract
The invention is directed to a method for preparing a polyester comprising providing a first cyclic ester having a ring size of from 12-40 atoms and subjecting the first cyclic ester to ring-opening polymerisation by contacting the first cyclic ester with a catalyst of formula I.
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