Patent ID: 7999031
Filing Date: 2011-08-16
Classification: C08F,Y10T

Abstract:
1. A method of preparing an aqueous dispersion of an ion-triggerable cationic polymer comprising the steps of: A. preparing a mixed solvent solution of water and an organic solvent with a boiling point below 100° C.; B. heating the solvent solution; C. mixing with said solvent solution D. heating the reaction mixture for a sufficient amount of time to polymerize the monomers and provide the ion-triggerable cationic polymer; E. after polymerization, adding water to said reaction mixture to provide an aqueous dispersion of said ion-triggerable cationic polymer; F. after adding water, removing substantially all of the organic solvent from said reaction mixture, and G. preparing the mixed solvent solution of step A using the organic solvent removed after polymerization from step F, and thereafter repeating steps B through G.