20090131610 | Process for Production of Amphoteric Electrolyte Resin by Continuous Bulk Polymerization and Apparatus for the Production - A process for producing an amphoteric electrolyte resin by continuous bulk polymerization at low cost is provided. Also provided is an apparatus for achieving the process. The process comprises the steps of: feeding, from the mixture supply side, a mixture comprising 0.01 to 10 wt % of at least one radically polymerizable basic monomer containing a nitrogen atom, 0.01 to 35 wt % of at least one radically polymerizable acidic monomer having a carboxyl group and 45 to 99.98 wt % of a monomer capable of copolymerizing with these monomers or a mixture of the mixture and a polymerization initiator and/or an organic solvent having a boiling point of 80° C. or higher in an amount of 10 wt % or less relative to the total weight of the monomers, into a reaction zone composed of four polymerization zones which independently provide mixture temperatures of T | 05-21-2009 |