The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 2013
Filed:
Dec. 05, 2008
Virginie Eriksson, Helsinki, FI;
Marjo Vaananen, Helsinki, FI;
Markku Vahteri, Porvoo, FI;
Thomas Garoff, Helsinki, FI;
Petri Rekonen, Porvoo, FI;
Jari Hatonen, Porvoo, FI;
Siw Bodil Fredriksen, Skien, NO;
Katrin Nord-varhaug, Porsgrunn, NO;
Marit Seim, Langesund, NO;
Jorunn Nilsen, Porsgrunn, NO;
Irene Helland, Langesund, NO;
Virginie Eriksson, Helsinki, FI;
Marjo Vaananen, Helsinki, FI;
Markku Vahteri, Porvoo, FI;
Thomas Garoff, Helsinki, FI;
Petri Rekonen, Porvoo, FI;
Jari Hatonen, Porvoo, FI;
Siw Bodil Fredriksen, Skien, NO;
Katrin Nord-Varhaug, Porsgrunn, NO;
Marit Seim, Langesund, NO;
Jorunn Nilsen, Porsgrunn, NO;
Irene Helland, Langesund, NO;
Borealis Technology Oy, Porvoo, FI;
Abstract
A multimodal linear low density polyethylene polymer having a final density of 900 to 940 kg/m, and containing at least one α-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 α-olefin; and (B) 70 to 40 wt % of a higher molecular weight component being a copolymer of ethylene and at least one α-olefin, said α-olefin being the same or different from any α-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.