| 摘要 |
A storage stable component of an olefin polymerisation catalyst is obtained when an aluminum-reduced titanium trichloride catalyst which has been modified by treatment with an electron donor is heated at a temperature and for a period of time sufficient to drive the reaction to completion e.g. at 40 DEG to 110 DEG C for 10 mins to 12 hours. In some instances this will involve the removal of by-product which has been formed during the modification. The component corresponds to the formula (3 TiCl3. AlCl3)1-x (3 TiCl3AlCl2XR)x where X is O, S, Se or Te, R is an organic group and X is positive and less than or equal to 1. |
