PROCESS FOR POLYMERIZING A POLYMERIZABLE OLEFIN AND CATALYST THEREFOR
申请人:Klosin Jerzy
公开号:US20130144018A1
公开(公告)日:2013-06-06
The present invention generally relates to a process that copolymerizes two or more polymerizable olefins, and to cataclyst comprising a metal-ligand complex (precatalyst). The present invention also generally relates to ligands useful for preparing the metal-ligand complex.
The present invention generally relates to a dielectric composition which is a poly-α-olefin or poly(co-ethylene-α-ol-efin) having a backbone weight average molecular weight less than 10,000 daltons. The dielectric composition uses a metal-ligand complex as a precatalyst and exhibits a hyperbranched structure that enables low viscosity, and therefore good flow characteristics, combined with high fire point due to ability to increase molecular weight via branching rather than backbone growth. Other desirable properties include lowered pour point due to crystallization disruption, and desirable thermal oxidative stability.
Process for selectively polymerizing ethylene and catalyst therefor
申请人:Dow Global Technologies LLC
公开号:US09000108B2
公开(公告)日:2015-04-07
The present invention generally relates to a process that selectively polymerizes ethylene in the presence of an alpha-olefin, and to a metal-ligand complex (precatalyst) and catalyst useful in such processes, and to related compositions. The present invention also generally relates to ligands and intermediates useful for preparing the metal-ligand complex and to processes of their preparation.
Process for polymerizing a polymerizable olefin and catalyst therefor
申请人:Klosin Jerzy
公开号:US09029487B2
公开(公告)日:2015-05-12
The present invention generally relates to a process that copolymerizes two or more polymerizable olefins, and to cataclyst comprising a metal-ligand complex (precatalyst). The present invention also generally relates to ligands useful for preparing the metal-ligand complex.