Patent ID: 8376607

Claim:
A process for continuously performing polymerization processes in a backmixed horizontal kneader having a product space, a flux condenser communicated with the product space, backmixing stirrer shaft geometry, one or two kneading shafts which run in same or opposed directions and are arranged horizontally and have a length/diameter ratio of 0.5-3.5, comprising: continuously feeding at least one reactant selected from the group consisting of monomer(s), catalysts, and initiators to the kneader so as to backmix the at least one reactant with already reacted product; simultaneously drawing reacted product from the kneader, wherein the feeding and drawing steps are carried out so that the product space is only partially filled; removing heat of reaction and kneading energy by evaporation of the monomer or solvent to produce vapors which are condensed in the reflux condenser; and recycling condensed monomer or solvent to the kneader, characterized in that one or more reaction stoppers are added to a residual degasser ( 4 ) connected downstream of the mixing kneader ( 1 - 1 . 3 ), and this added medium simultaneously serves as a stripping agent for degassing of residual solvent and/or monomer(s).