| 摘要 |
A process for the preparation of homopolymers and copolymers of alpha monoolefins by means of a catalyst system characterized by high activity, high polymer production rates, low residual chloride in the polymer, and polymer morphological properties which allow the use of high reactor temperatures, and comprising (1) a coordination complex formed between a titanium halide of the formula TiCl3 &cirf& m AlCl3 where m is a number from 0 to 0.5, and a benzoic acid ester of the formula <IMAGE> where R<1> is an alkyl radical or an aromatic or aliphatic radical, and (2) an appropriate conventional aluminium alkyl, the titanium halide and the ester having been milled together before use. |
