CONTINUOUS PROCESS FOR THE PRODUCTION OF VINYL CHLORIDE POLYMERS IN AQUEOUS SUSPENSION

摘要

of the disclosure: The process is described for the continuous suspension polymerization of vinyl chloride in aqueous phase, in which the polymerization mixture is subjected, in 2 zones, to treatment employing different process parameters in respect of final conversion, dwell time, number of theoretical cascade stages and stirrer power applied. this procedure gives, a good space-time yields, very uniform products which have a narrow particle size distribution, a high bulk density, good flow and low speck count. In spite of using standard kettle material, only a very low formation of deposit on the kettle walls is observed.