Patent ID: 7718746

Claim:
A method of making a crosslinked amine polymer comprising repeat units derived from polymerization of a non-polymeric amine and a crosslinking agent, the non-polymeric amine being selected from the group consisting of (i) an amine of formula (I) wherein each n, independently, is equal to or greater than 3; m is equal to or greater than 1; and each R 1 , independently, is H or optionally substituted alkyl or aryl or is linked to a neighboring R 1 to form an optionally substituted alicyclic, aromatic, or heterocyclic group; and (ii) an amine of formula (IV) wherein each n, independently, is equal to or greater than 3; each r, independently, is 0, 1, or 2; and each R 1 , independently, is H or optionally substituted alkyl or aryl or is linked to a neighboring R 1 to form an optionally substituted alicyclic, aromatic, or heterocyclic group provided the non-polymeric amine is not 1,3-diaminopropane, the method comprising polymerization in dispersed media in a heterogeneous process comprising: dispersing the amine in a continuous phase in which the amine is insoluble, reacting the amine with the crosslinking agent under conditions to produce a suspension of the crosslinked amine polymer in the continuous phase, and allowing a crosslinking reaction to form the crosslinked amine polymer as beads or irregularly-shaped particles in suspension in the continuous phase.