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Abstract of US
6403834 (B1)
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| The invention concerns a method
for preparing tris(ether-amines) of formula (I):
N[A-O-(B-O)n-R]3 wherein R, A, B and n are as defined in
Claim 1, comprising the reaction, in liquid phase, of an
alkylene-glycol monoether of formula (II):
HO-A-O-(B-O)nR wherein R, A, B and n are as defined in
Claim 1, with an ammonolysis agent selected among
ammonia and an etheramine of formula (I'):
H3-pN[A-O-(B-O)nR]p wherein: A, B, n and R are as
defined in Claim 1 and p represent 1 or 2, at a
temperature ranging between 100 and 250 DEG C., by
contacting reagents with a hydrogenation-dehydrogenation
catalyst. |
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Data supplied from the esp@cenet
database — Worldwide |
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