Process for continuous preparation of homopolymers of ethyleneimine
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United States of America Patent
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Nov 2, 1999
Grant Date -
N/A
app pub date -
Jun 8, 1998
filing date -
Dec 8, 1995
priority date (Note) -
Expired
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Abstract
A process for the continuous preparation of homopolymers of ethyleneimine by polymerization of ethyleneimine in a solvent in the presence of catalysts at temperatures of at least 80.degree. C., in homogeneous liquid phase in a tubular reactor in which the ratio of length to internal diameter is at least 5:1. There are obtained polyethyleneimines having a content of secondary nitrogen atoms of more than 40 to 60% and molecular weight distribution M.sub.w /M.sub.n of from 1.5:1 to 3:1.
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