OLEFIN POLYMERIZATION METHOD WHICH REUSES COCATALYST

摘要

PURPOSE: An olefin polymerization method is provided which reuses a cocatalyst that is excessively used to activate pre-catalyst to decrease the amount of the cocatalyst used greatly. CONSTITUTION: An olefin polymerization method is as follows: a) a first step which contacts supported pre-catalyst(1) with one activated point with organic solvents wherein the cocatalyst(2) is dissolved to produce a catalyst with one activated point; b) a second step which separates dissolved organic solvents by the catalyst with one activated point and the cocatalyst; c) a third step which polymerizes not less than 1 olefin class monomers under the catalyst with one activated point separated from b) step; and d) a fourth step which circulates the organic solvents wherein the cocatalyst is dissolved from b) step, contacted with the pre-catalyst from a) step and reused.