METALOCHENES WITH INDENYL DERIVATIVES SUBSTITUTED IN ARIL AS LIGANDS, PROCEDURE FOR THEIR PREPARATION AND APPLICATION AS CATALYSTS.

摘要

AN ACTIVE CATALYST SYSTEM FOR THE POLYMERIZATION OR COPOLYMERIZATION OF OLEFINS CONSISTS OF A CO-CATALYST, PREFERABLY AN ALUMINOXANE OR A BEARING ALUMINOXANE AND A METALOCENE OF FORMULA (I), WHERE M, ZR OR MG; R1 AND R2 HALOGEN OR ALKYL; R3 RENT; R4 TO R12 ALKYL OR HYDROGEN AND R13 A SUBSTITUTED ALKYLENE OR A HETEROATOMO BRIDGE. METALLOCENE, PARTICULARLY CIRCONIOCENE IS PRODUCED IN ZONES OF INTERESTING TECHNICAL TEMPERATURES BETWEEN 50 AND 80 C WITH POLYMERS OF HIGH CATALYZING ACTIVITY AND LARGE MOLECULAR MASS; AND IN THE CASE OF PROQUIRAL AMONOMER POLYMER WITH MOLECULAR MASS, HIGH STEROSELECTIVITY AND HIGH MELTING POINT. LOADS IN THE REACTOR ARE AVOIDED WITH THE PORTED CATALYST SYSTEMS.