Method for producing copolymers and terpolymers from olefins

Process for the preparation of co- or terpolymers from olefins, characterised in that compounds of the general formula (I)

• in which
• X1 denotes NR, PR, O or S, optionally complex-bonded to aluminium
• X2 denotes NRR′, PRR′, OR, SR, complex-bonded to aluminium
• R1 denotes linear or branched alkylene, cycloalkylidene, alkenylene, arylene, silylene, all of which may contain hetero atoms, such as N, P, O, S, F or X1 or X2, optionally complex-bonded to aluminium
• R2, R3, independently of one another, denote linear or branched alkyl, cycloalkyl, alkenyl, aryl, alkynyl, silyl, H, F, Cl, Br, I or X2, each of which may itself be partially fluorinated or perfluorinated
• R, R′, independently of one another, denote linear or branched alkyl, cycloalkyl, alkenyl, aryl, alkynyl, silyl or H, each of which may itself be partially fluorinated or perfluorinated
• m denotes 0, 1
• n denotes 1, 2, 3, 4, 5, 6, 7;
• if n>1, R1 may, independently of one another, adopt different meanings
• o denotes 0, 1
• p, q denote 0, 1, 2
• r denotes 3-p-q,
• are used as components or cocatalysts (A) in coordination catalyst systems, where the latter in turn consist of (A), (B) a titanium- or vanadium-containing mixed catalyst and optionally (C) a support based on MgCl2 or SiO2 or SiO2 in combination with MgCl2.