[EN] ETHYLENE TRIMERIZATION CATALYSTS COMPRISING P-N-P LIGANDS AND THEIR USE [FR] CATALYSEURS DE TRIMÉRISATION D'ÉTHYLÈNE COMPRENANT DES LIGANDS P-N-P ET LEUR UTILISATION
A new P—N—P ligand is useful in ethylene oligomerizations. In combination with i) a source of chromium and ii) an activator such as methylalumoxane; the ligand of this invention may be used to prepare an oligomer product that contains a mixture of hexenes and octenes. The hexenes and octenes produced with this ligand contain very low levels of internal olefins when produced under preferred reaction conditions.
[EN] ETHYLENE TRIMERIZATION CATALYSTS COMPRISING P-N-P LIGANDS AND THEIR USE<br/>[FR] CATALYSEURS DE TRIMÉRISATION D'ÉTHYLÈNE COMPRENANT DES LIGANDS P-N-P ET LEUR UTILISATION
申请人:NOVA CHEM INT SA
公开号:WO2010034101A1
公开(公告)日:2010-04-01
A new P-N-P ligand having the general formula (Ph1)(Ph2)P-N-P(Ph3)(Ph4) R2 wherein each Of Ph1, Ph2, Ph3 and Ph4 is a phenyl group bonded to a phosphorus group, and R2 is selected from the group consisting of hydrogen, C1-20hydrocarbyl and silyl is useful in ethylene trimerization. In combination with i) a source of chromium and ii) an activator such as methylalumoxane, the ligand of this invention may be used to prepare an oligomer product that contains a mixture of hexenes and octenes The hexenes and octenes produced with this ligand contain very low levels of internal olefins when produced under preferred reaction conditions