Patent ID: 7304017

Claim:
A sorbent comprising a spherical, highly porous polymer, said polymer being formed by suspension polymerization of at least one hydrophilic monomer and at least one hydrophobic monomer, wherein: the hydrophilic monomer contains an imidazole moiety, the hydrophobic monomer is a mixture of isomeric divinylbenzene and isomeric ethylvinylbenzene monomers, the sorbent has a pore diameter range from 5 Å to 1000 Å and an average pore diameter from 50 Å to 250 Å, the sorbent has a pore volume from 1 ml/g to 2 ml/g, and the pore volume comprises 15% to 25% micropores, 50% to 80% mesopores, and 5% to 30% macropores.