| abstract |
A polyethylene comprising homopolymers and / or copolymers of ethylene with 1-alkenes and having an amplitude of the distribution of molar masses Mw / Mn from 3 to 30, a density of 0.945 to 0.965 g / cm3, a weight average molar mass Mw from 50,000 g / mol to 200,000 g / mol, a melt flow index under HLMI high load, determined at 190 ° C with a load of 21.6 kg according to ISO 1133 from 10 to 300 g / 10 min., at least 0.2 vinyl groups / 1000 carbon atoms, and 0.1 to 15 branches / 1000 carbon atoms, so that 1 to 15% by weight of the polyethylene with the largest molar masses has a degree of branching greater than 1 branch side chains of extension greater than CH3 / 1000 carbon atoms. |