Process for the homopolymerisation of ethylene

摘要

Process for the homopolymerisation of ethylene at a reactor temperature between 250 and 500 K with a lanthanide catalyst, characterised in that a catalyst is used according to the formula A2Sm.xL wherein A = a substituted or non-substituted cyclic pi -bonded ligand, L = a Lewis base and x = 0 - 3, and in that the catalyst concentration is between 1.10<-9> mol/l and 5.10<-4> mol/l.