METHOD FOR MANUFACTURING OLEFIN POLYMER COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing an olefin polymer composition in 2 or more connected reaction vessels wherein a polymer mixture in each reaction vessel is independently controlled and a compound undesirable for the next reaction vessel is advantageously removed from the polymer mixture recovered from the first reaction vessel. SOLUTION: This method for manufacturing an olefin polymer composition in 2 or more connected reaction vessels includes a process of sending a suspension liquid containing an olefin polymer particle suspended in a diluent prepared in a first reaction vessel to a hydrocyclone separator in which there are formed a flow containing the diluent on one hand and a concentrated suspension liquid of the polymer particle on the other hand for separation and a process of introducing the concentrated suspension liquid to the next reaction vessel.