METHOD FOR REDUCING RESIDUAL MONOMERS IN LIQUID SYSTEMS BY ADDING AN OXIDATION-REDUCTION INITIATOR SYSTEM

摘要

A process is described for reducing the residual monomer content in a liquid solution, mixture, melt, suspension or dispersion of a polymer by postpolymerization with addition of a redox initiator system at a reaction temperature appropriate to it and with an extremely short mixing time of the liquid system in the production reactor by metering-gradually, in portions or continuously-at least one of the redox initiator components required to initiate polymerization of the residual monomers over a period (metering time) which is from about 10 to 250 times the mixing time of the liquid system in said reactor.