Method of making ionomeric particulates

摘要

A method of making ionomeric particulate compositions by suspension polymerization are provided. The method comprises the steps of (a) forming an aqueous phase comprising an acid monomer, a metal oxide, and at least a first and a second surfactant, the first being a monomer surfactant; (b) forming an oil phase comprising at least one vinyl monomer; and (c) suspension polymerizing the aqueous phase with the oil phase to yield an ionomeric particulate composition. The resulting particulates do not have pressure sensitive tack. Particle size in the range of less than 10 micrometers can be made. The ionomeric particulate is made in the absence of a chain transfer agent and thus can have high molecular weight.