| abstract |
Transition metal complexes of the general formulas (Ia) or (Ib) DOLLAR F1 in which the substituents and indices have the following meaning: DOLLAR A M titanium, zirconium, hafnium, vanadium, niobium or tantalum or an element of III. Sub-group of the periodic table or the lanthanoids, DOLLAR AX fluorine, chlorine, bromine, iodine, hydrogen, C¶1¶-C¶10¶-alkyl, C¶6¶-C¶15¶-aryl, alkylaryl with 1 to 10 C- Atoms in the alkyl radical and 6 to 20 carbon atoms in the aryl radical, -OR · 5 · or -NR · 5 · R · 6 ·, DOLLAR A n 1, 2 or 3, where n corresponds to the valence of M minus the number 2, DOLLAR AY DOLLAR F2 Z a triple-linking bridge group and DOLLAR AA and A · 1 Homopolymers or copolymers of ethylene or propylene with other C¶2¶-C¶12¶-Alk-1-enes, their use in the production of films, fibers or moldings, and the films, fibers or moldings made from these polymers. |