SUBSTITUIERTE PHOSPHINOPHENOLAT-METALL-KOMPLEXE ZUR POLYMERISATION VON OLEFINEN

Metal complexes (I), obtained from a metal precursor of a group 6-10 metal in the 0 or +2 oxidation state and a ortho-phosphinylphenol, -aniline or analogous ligand (II) are new. Metal complexes (I), obtained from a metal precursor of a group 6-10 metal in the 0 or +2 oxidation state and a ortho-phosphinylphenol, -aniline or analogous ligand of formula (II) are new; R , R , R = hydrogen (H), arylalkyl, alkenyl, alkoxy, aryloxy, thioether, silyloxy OSiR R R , halogen, amino NR1oR or (substituted) alkyl, cycloalkyl or aryl; R = alpha -branched or alpha -substituted alkyl, arylalkyl, alkenyl(alkyl), cycloalkyl, (substituted) aryl, alkoxy, aryloxy, thioether, OSiR R R , halogen or NR R ; 2 adjacent R groups may = a ring; R , R = (substituted) alpha -branched 3-12 C alkyl or 3-12 C cycloalkyl; X = oxygen (O), sulfur (S), selenium (Se), imino (NR ), phosphino (P-R ) or arsino (As-R ); Y = H, an alkali metal cation, alkylacyl or arylacyl anion or SiR R R ; R = H, alkyl, benzyl or aryl; R R or R R may = a ring. The full definitions are given in the DEFINITIONS (Full Definitions) Field. Independent claims are also included for: (a) catalysts of (I) immobilized on a solid support for the polymerization of 1-olefins; (b) the polymerization of 1-olefins in the presence of (I) or these catalysts; (c) (co)polymers obtained by polymerizing 1-olefin(s) with (I) or the catalyst system; (d) molding compositions obtained from the (co)polymers for making films, sheets, waxes, fibers or hollow moldings.