| http://www.w3.org/ns/prov#value | - The polyimine is preferably added to the reaction mixture as a solution where the solvent is an aliphatic alcohol having from 1 to about 6 carbon atoms including methanol, ethanol, propanol, isopropanol, butanol, isobutanol, sec-butanol, tert-butanol and pentanol, cyclohexanol or mixtures thereof, or benzyl alcohol.
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