PREPARATION OF STYRENE-ISOPRENE AND OF STYRENE ISOPRENE ETHYLENE COPOLYMERS

摘要

This invention discloses the use in the copolymerisation of styrene and conjugated dienes such as isoprene or in the terpolymerisation of styrene, isoprene and ethylene, of a catalyst system based on allyl complexes of group 3 metals incorporating bridged cyclopentadienyl-fluorenyl ligands.