Patent ID: 8425847

Claim:
A plant for the continuous solution polymerization of a feed comprising one or more olefin monomers and a solvent, the plant comprising: a reactor; a conduit for supplying a feed of one or more olefin monomers in a solvent to the reactor and a conduit for supplying a catalyst to the reactor to form a polymer-containing polymerization reaction mixture; downstream of the reactor a liquid phase separator for separating the reaction mixture into a polymer-rich phase and a polymer-lean phase; downstream of the liquid phase separator a low pressure separator for separating the polymer rich phase into a vapour phase and a concentrated polymer phase; and downstream of the low pressure separator for separating the polymer rich phase, a vacuum devolatilizer for removing volatile components from the concentrated polymer phase, wherein the plant also includes an apparatus for adding stabilizer to the concentrated polymer phase at a location downstream of the low pressure separator for separating the polymer rich phase.