Preparation of polyethylene

   
   

A polyethylene having improved rheological properties is disclosed. The polyethylene has a melt index (MI.sub.2) from about 0.01 dg/min to about 50 dg/min and a melt strength (.eta.) that satisfies MI.sub.2.times..eta..gtoreq.3.5. A process for making the polyethylene is also disclosed. The process uses an azaborolinyl-containing single-site catalyst in the presence of hydrogen, where the hydrogen consumption is controlled to be less than 30%.

Un polietileno que mejora características rheological se divulga. El polietileno tiene un índice del derretimiento (MI.sub.2) de cerca de 0.01 dg/min a cerca de 50 dg/min y a una fuerza del derretimiento (el eta.) eso satisface MI.sub.2.times..eta..gtoreq.3.5. Un proceso para hacer el polietileno también se divulga. El proceso utiliza un catalizador del solo-sitio azaborolinyl-que contiene en la presencia del hidrógeno, donde la consumición del hidrógeno se controla para ser menos de el 30%.

 
Web www.patentalert.com

< Solution polymerization process

< Catalysts for polymerization of .alpha.-olefins, process for producing .alpha.-olefin polymers, novel transition metal compounds and catalyst components for polymerization of .alpha.-olefin

> Pigment concentrates and their production

> Method for converting oxygenates to olefins

~ 00116