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US 8,802,803 B2Granted
Polyethylene for rotomoulding
AssigneeBasell Polyolefine GmbH
InventorsGerd Mannebach, Heinz Vogt, Fabiana Fantinel, Shahram Mihan, Peter Bisson, Cees Besems, Gerhardus Meier, Ulf Schüller, Barbara Gall, Iakovos Vittorias, Manfred Hecker, Michael Olmscheid
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Abstract
A novel polyethylene is devised which polyethylene is particularly advantageous for manufacturing rotomoulded articles.
Claims18
A polyethylene copolymer comprising:
- a copolymer of ethylene and 1-hexene,
- wherein the polyethylene copolymer has:
- (i) a molar mass distribution width Mw/Mn from 7 to 15,
- (ii) a density from 0.942 to 0.946 g/cm3,
- (iii) a weight average molar mass Mw from 20,000 g/mol to 500,000 g/mol,
- (iv) from 0.7 to 20 CH3/1000 carbon atoms as determined by NMR,
- (v) a high load melt index from 115 to 220 g/10 min, and
- (vi) a melt flow rate (MI, at 2.16 kg) from 3.5 to 4.5 g/10 min.
5 more elements
Dependencies are inferred from the claim text.