| 摘要 |
<p>The present invention relates to a component of a catalyst for the polymerization of olefins, comprising a product obtained by contacting (1) an inorganic or organic compound of Ti, V or Zr having at least one metalhalogen bond, or an organic halogen-free compound of said metals having metal-oxygen bonds, with (2) a solid, hydrocarbon-insoluble product obtained by decomposition to a metal dihalide or to a product containing a metal dihalide, of a complex having the general formula: MX2 . n AlRX2 . p AlX3 in which: M = barium, calcium, magnesium or manganese; X = chlorine or bromine in the case of MX2 and AlX3, and chlorine, bromine or alkoxy group in the case of AlRX2; R = a hydrocarbon radical containing up to 20 carbon atoms; n = from 1 to 4; p = up to 1; and 1 ? n + p ? 4; said contacting being effected according to a M/transition metal atomic ratio of from 0.1 to 50.</p> |
