SUPPORTED OLEFIN POLYMERIZATION CATALYST, ITS PREPARATION AND USE

摘要

UNTIL NOW, OLEFIN POLYMERIZATION CATALYSTS BASED ON A METALLOCENE, AN ALUMOXANE AND A SUPPORT HAVE BEEN HIGHLY UNEVEN IN QUALITY. A NEW PROCESS HAD NOW BEEN DEVELOPED FOR THE PREPARATION OF A SUPPORTED OLEFIN POLYMERIZATION CATALYST, WHEREIN @A) A METALLOCENE/ACTIVATOR REACTION PRODUCT, A SOLVENT CAPABLE OF DISSOLVING IT, AND A POROUS SUPPORT ARE BROUGHT INTO MUTUAL CONTACT, AND@B) THE SOLVENT IS REMOVED, @ AND WHEREIN STEP A) IS CARRIED OUT SO THAT THE POROUS SUPPORT IS IMPREGNATED WITH AN AMOUNT AT MAXIMUM ITS PORE VOLUME OF THE METALLOCENE/ACTIVATOR REACTION PRODUCT AND SOLVENT.