| 摘要 |
The present invention relates to spherical catalyst components for the polymerization of olefins of formula RCH=CHR, in which R is independently selected from hydrogen or a hydrocarbon group with 1-10 carbon atoms, comprising a homogenous transition metal compound of formula MPx, in which P is a ligand that is coordinated to the metal and x is the valence of the metal M which is an atom of a transition metal M selected from the Groups 3 to 11 or the lanthanide or actinide groups of the Periodic Table of the Elements (new IUPAC version), said transition metal compound being dispersed in a solid hydrocarbon matrix that has a melting point above 70 ° C.. The said catalyst components are able to give polymers in good yields and spherical morphology.
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