Method for production of aziridines and N-vinylamides
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United States of America Patent
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Aug 2, 2005
Grant Date -
Oct 30, 2003
app pub date -
Apr 10, 2003
filing date -
Apr 24, 2002
priority date (Note) -
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Abstract
In the production of aziridines or N-vinyl amides respectively from an alkanolamine or an alkanolamide by the known method comprising a reaction step, a collecting step and/or a condensation step, a purifying step, and a recovering step, this invention is directed toward preventing formation of a solid substance in the vacuum pumps and the vacuum lines. The object of this invention is accomplished by performing the decompression at the purifying step and the decompression at the recovering step in mutually different decompression systems.
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