| abstract |
Water soluble, high molecular weight zwitterionic polymers derived from non-ionic and zwitterionic monomers and their use in papermaking processes. Zwitterionic monomers may incorporate betaines, phosphates, acrylamides, and positively or negatively charged quaternary and monomer functional groups that may be useful in a zwitterionic polymer. These polymers are useful in methods to increase retention, separate suspended solids and improve drainage in paper pulp processing. |