POLYMERISATION CATALYSTS

摘要

CATALYST SYSTEM USEFUL FOR THE PREPARATION OF SUBSTANTIALLY TERMINALLY UNSATURATED POLYOLEFINS COMPRISES METALLOCENE COMPLEXES CONTAINING LIGANDS BASED ON TRIFLATE, DIKETONIC ORβ- KETOESTERS. PREFERRED COMPLEXES ARE SUITABLE FOR USE WITH COCATALYSTS TO PREPARE POLYMERS HAVING > 97% VINYLIDENE TERMINAL UNSATURATION SUITABLE FOR FUNCTIONALISATION AND SUBSEQUENT USE AS FUEL AND LUBRICANT ADDITIVES, DISPERSANTS WAX MODIFIERS, VISCOSITY INDEX IMPROVERS AND THE LIKE.