Process for hydrolyzing and recycling a polyurethane
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United States of America Patent
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Oct 7, 2003
Grant Date -
Jan 16, 2003
app pub date -
Oct 7, 1999
filing date -
Feb 5, 1997
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Abstract
A process for hydrolyzing and recycling polyurethanes as target compounds to be hydrolyzed into raw materials or derivatives thereof for the target compounds, comprising bringing pressurized water in a liquid state at a temperature of 190 to 370.degree. C. into contact with the target compounds in a reactor to hydrolyze the target compound; followed by post-processings, such as dewatering, addition, distillation, separation, and liquid separation for a hydrolyzed reaction product discharged from the reactor.
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