Process for depolymerizing polyesters
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United States of America Patent
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Sep 16, 1997
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N/A
app pub date -
Mar 20, 1996
filing date -
Mar 20, 1996
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Abstract
The invention relates to a novel process for depolymerizing polyesters by subjecting the polyesters to catalysts and organic solvents which are substantially free of oxygen and water in order to produce macrocyclic polyester oligomers substantially free of hydroxybutyl terminated linear impurities.
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