Depolymerization of polyamides
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United States of America Patent
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Sep 16, 1997
Grant Date -
N/A
app pub date -
Apr 15, 1996
filing date -
Apr 14, 1995
priority date (Note) -
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Abstract
One or more polyamides can be depolymerized in the presence of at least one nitrogen-containing compound. The depolymerization takes place at a pressure between about 0.5 and about 5 atm. The polyamide may be in the form of carpet waste or other heterogeneous form. Advantages include better selectivity towards the polyamide monomeric components and use of low pressure equipment to effect depolymerization.
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