Abstract: The present invention provides a method for tailoring the molecular weight distribution of a multimodal (e.g. bimodal) ethylene polymer having a lower molecular weight component and a higher molecular weight component comprising polymerising ethylene and optionally at least one further alpha olefin in at least two stages, wherein at least one stage is carried out in a slurry phase in the presence of a Ziegler Natta catalyst comprising an electron donor which is an ether.
Type:
Application
Filed:
November 1, 2006
Publication date:
May 27, 2010
Applicant:
Borelis Technology OY
Inventors:
Jarmo Lindroos, Mats Backman, Thomas Garoff, Peter Idelmann, Solveig Johansonn, Young Soo Ko, Minna Stalhammar, Paivi Waldvogel