MULTIMODAL POLYETHYLENE

The invention relates to an ethylene polymer comprising a low molecular weight component and a high molecular weight component, wherein-the ethylene polymer has a density of 955 to 977 kg/m3 and a viscosity value η100 of at most 1500 Pa·s and a strain hardening as determined according to ISO18488 of...

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Bibliographische Detailangaben
Hauptverfasser: Hendriksen, Coen, Perez Valencia, Sr., Francisco
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention relates to an ethylene polymer comprising a low molecular weight component and a high molecular weight component, wherein-the ethylene polymer has a density of 955 to 977 kg/m3 and a viscosity value η100 of at most 1500 Pa·s and a strain hardening as determined according to ISO18488 of at least 25 MPa, for example 30 to 40 MPa,-the amount of the low molecular weight component with respect to the total ethylene polymer is at least 60 wt %,-the low molecular weight component has a Mw of 10,000 to 50,000 g/mol, a ratio of Mw/Mn of 2.5 to 4.5 and a density of 965 to 985 kg/m3 and-the high molecular weight component has a Mw of 100,000 to 1,000,000, a ratio of Mw/Mn of 2.5 to 4.0 and a density of 920 to 950 kg/m3.