polyethylene, ethylene copolymer preparation process, catalyst composition, catalyst system, use thereof, polyethylene preparation process, polymer blend, and fiber, film or molded part

摘要

polyethylene, ethylene copolymer preparation process, catalyst composition, catalyst system, use thereof, polyethylene preparation process, polymer blend, and fiber, film or molded part. polyethylene comprising ethylene homopolymers and ethylene copolymers with β-olefins and having a molar mass distribution range m ~ w ~ / m ~ n ~ from 6 to 100, a density of 0.89 to 0.97 g / cm ^ 3 ^, an average weight molar mass m ~ m ~ from 5000 g / mol to 700,000 g / mol and has from 0.01 to 20 branches / 1000 carbon atoms and at least 0.5 vinyl groups / 1000 atoms 5-50% by weight of polyethylene with the lowest molar masses has a degree of branching less than 10 branches / 1000 carbon atoms and 5-50% by weight of polyethylene with the largest molar masses a degree of branching more than 2 branches / 1000 carbon atoms, a process for their preparation, advantageous catalysts for their preparation and also fibers, moldings, films or polymer mixtures in which this polyethylene is present.