| 摘要 |
<p>A process for the manufacture of a modified titanium-contain-ing component or a catalyst for the polymerization of .alpha.-mono-olefins by the Ziegler-Natta method wherein (a) a compound containing titanium and (b) a compound containing phosphorus are ground dry in a vibratory ball mill. It is characterisrtic of the process that (1) a mill Or relatively large useful volume is employed, (2) the mill is first charged with the compound (a) containing titanium, (3) wilst grinding the material at a low temperature, the compound (b) containing phosphorus is added gradually, thereafter (4) the materials is gradually brought to a higher temperature, whilst continuing the grinding, and is kept at about this temperature for a prolonged period, then (5) a finely particulate 1-alkene polymer having a particular glass transition temperature and a particular intrinsic viscostiy is added to the material and finally (6) the material is kept at a low temperature for a prolonged period, whilst continuing the grinding.</p> |
