CONTINUOUS POLYMERIZATION PROCESS USING INTENSELY STIRRED VESSELS

摘要

A continuous polymerization process where one or more stirred vessels (intermittent reactor vessels) are employed in oligomer transfer line for mixing additives. An additive is added in the stirred vessel either as a solution or as slurry. The additive may or may not be reactive with the other monomer of the polyester molecule. The additive reacts with the monomer and incorporates in the polymer backbone in one of the embodiment. One or more further additives are mixed with the pre-reactor monomer mix and are charged in the first reactor or charged through the stirred vessel in the form of single slurry or solution or multiple slurries or solutions. Any further vessels employed provide higher residence time proportionate to output and use of such vessels in reactor system is independent of the any further additives.