| abstract |
LINEARLY EXTENDED POLYALKYLENEOAMINES, SUCH AS LINEAR OR BRANCHED POLYALKYLENE POLYAMIDES, ARE PREPARED BY CONTACTING A DIFFUNCTIONAL ALIPHATIC ALCOHOL, LIKE MONOETHANOLAMINE, WITH A REACTANT AMINE, AS ETHYNODIAMINE, IN THE PRESENCE OF A CATHOLE GROUP VB; (B) NIOBIO PHOSPHATE OR TANTALUM PHOSPHATE IS NOT GREATER THAN 1.3; OR (C) MIX THEM. INCLUDED BETWEEN LINEARLY EXTENDED POLYALKYLENOPOLIAMIDES, ALCOHOL-PROLONGED PIPERACINES, SUCH AS N- (2-HYDROXYETYL) PIPERACINE, AND AMINE PROLONGED PIPERACINES, LIKE N- (2-AMINOETHYL) -PIPER |