| 主权项 |
1. A polyethylene composition which comprises ethylene homopolymers and/or copolymers of ethylene with C3-C20-1-alkenes having a molecular weight distribution Mw/Mn from 10 to 20, a density of from 0.92 to 0.98 g/cm3, a melt flow rate MI from 0.5 to 10 g/10 min, a high load melt index from 50 to 300 g/10 min, and a spiral length from 200 to 250 mm, at a spiral flow testing condition of 1050 bar, 1 mm spiral wall thickness and 190° C.
wherein the polyethylene composition does not show a TREF peak with a maximum above 90° C. |
