Patent ID: 7592391
Filing Date: 2009-09-22
Classification: C08F,Y02P,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 acetone; 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 acetone from said reaction mixture, and G. preparing the mixed solvent solution of step A using the acetone removed after polymerization from step F, and thereafter repeating steps B through G.