[EN] CATALYST SYSTEM FOR THE POLYMERIZATION OF OLEFINS<br/>[FR] SYSTÈME DE CATALYSEUR POUR LA POLYMÉRISATION D'OLÉFINES
申请人:BASELL POLIOLEFINE SRL
公开号:WO2012052387A1
公开(公告)日:2012-04-26
A catalyst system comprising the product obtained by contacting (a) a solid catalyst component containing Mg, Ti, halogen and at least an electron donor compound selected from diolesters of a specific formula (b) an alkylaluminum cocatalyst and (c) an ester of formula R'OOC-(CR"2)m-COOR' in which m is an integer from 2 to 8, the R' groups, equal to or different from each other, are C1-C10 alkyl groups and the R" groups, independently, are hydrogen or C1 -C15 hydrocarbon groups.