Process for treating a material comprising a polymer by hydrolysis
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United States of America Patent
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May 18, 1999
Grant Date -
N/A
app pub date -
Jul 25, 1995
filing date -
Dec 11, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Process for the treatment of a material comprising a polymer, especially a polyamide. The process consists in subjecting the polyamide to hydrolysis in the presence of a hydrolyzing nitrous grouping and transforming the hydrolyzed compounds into diacids. The treatment of a polyamide 6.6 results in the recovery of adipic acid and other diacids corresponding to the participating acid monomer and to the transformation of at least one part of the diamine monomer into diacids.
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