Borealis Technology Oy

Marjo Väänänen

Siw Bodil Fredriksen

Thomas Garoff

Markku Vahteri

Virginie Eriksson

Irene Helland

Petri Rekonen

Katrin Nord-Varhaug

Jorunn Nilsen

Jari Hatonen

Marit Seim

Minna Stalhammar

Young-Soo Ko

Marita Savilahti

Jari HÄTÖNEN

A multimodal linear low density polyethylene polymer having a final density of 900 to 940 kg/m, and containing at least one &#x3b1;-olefin comonomer in addition to ethylene comprising: (A) 30 to 60 wt % of a lower molecular weight component being an ethylene homopolymer or a copolymer of ethylene and at least one &#x3b1;-olefin; and (B) 70 to 40 wt % of a higher molecular weight component being a copolymer of ethylene and at least one &#x3b1;-olefin, said &#x3b1;-olefin being the same or different from any &#x3b1;-olefin used in component (A) but with the proviso that both components (A) and (B) are not polymers of ethylene and butane alone; wherein the multimodal LLDPE has a dart drop of at least 700 g; and wherein components (A) and (B) are obtainable using a Ziegler-Natta catalyst.

Multi-stage process for producing multimodal linear low density polyethylene polymers

The present invention relates to a Ziegler-Natta catalyst comprising a solid, ligand-modified catalyst component formed at least from

Ligand modified Ziegler-Natta catalyst for olefin (co-)polymerization

Growing community of inventors

Helsinki, Finland

Marjo Väänänen