Process for the preparation of carbamates of primary and secondary polyamines
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United States of America Patent
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Issued Date -
May 5, 2011
app pub date -
Apr 18, 2005
filing date -
Jun 18, 2004
priority date (Note) -
Abandoned
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Abstract
A process is described for the preparation of carbamates of primary and/or secondary polyamines, which process comprises the steps of vaporising a primary and/or secondary polyamine and reacting said vaporised primary and/or secondary polyamine with gaseous carbon dioxide. In particular, the process relates to the production of the carbamates of hexamethylenediamine, 1,4-diaminocyclohexane and 3-aminomethyl-3,5,5-trimethylcyclohexylamine.
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