Polymerization catalyst, production and use (P-1010)

摘要

Ethylene and alpha-olefins are homopolymerized or copolymerized with another olefin monomer in the presence of a catalyst system comprising an organo metal cocatalyst and a treated titanium-containing catalyst component, said titanium-containing catalyst component being obtained by reacting together a porous particulate material, an organic magnesium compound, an oxygen containing compound, a halogen, interhalogen compound or halosilane and titanium tetrachloride.