Sterically Emcumbered Bidentate and Tridentate Naphthoxy-Imine Metallic Complexes
申请人:Carpentier Jean-Francois
公开号:US20110105704A1
公开(公告)日:2011-05-05
The present invention discloses post-metallocene complexes based on sterically encumbered bi- and tri-dentate naphthoxy-imine ligands. It also relates to the use of such post-metallocene complexes in the oligomerisation of ethylene to selectively prepare vinyl-end capped linear alpha-olefins.
Sterically emcumbered bidentate and tridentate naphthoxy-imine metallic complexes
申请人:Total Petrochemicals Research Feluy
公开号:EP2113507A1
公开(公告)日:2009-11-04
The present invention discloses post-metallocene complexes based on sterically encumbered bi- and tri-dentate naphthoxy-imine ligands. It also relates to the use of such post-metallocene complexes in the polymerisation of ethylene.
Catalysts for preparing ultra high molecular weight polyethylene (UHMWPE)
申请人:TOTAL RESEARCH & TECHNOLOGY FELUY
公开号:US09617362B2
公开(公告)日:2017-04-11
Group 4 transition metal complexes of bidentate iminonaphthol pro-ligands can be used as catalysts to polymerize olefins, such as ethylene. Group 4 transition metal complexes of bidentate iminonaphthol pro-ligands can have a single-site nature, allowing the catalysts to be used to prepare ultra high molecular weight polyethylene having a narrow molecular weight distribution.