| 摘要 |
<p>A catalyst for polymerization of olefin monomers, comprising Component (A) which is a solid catalytic compound obtained by subjecting at least the following three compounds to a contact reaction: Sub-component (i) which is a component for Ziegler catalysts comprising titanium, magnesium and a halogen; Sub-component (ii) which is a silicon compound represented by the formula R<1>4-nSiXn wherein R<1> is a hydrocarbyl group having 1 to 20 carbon atoms, X is a halogen, and n is a number in the range of 0 < n </= 4, and Sub-component (iii) which is divinylbenzene, the amount of said Sub-component (iii) polymerized in the course of the contact reaction being from 0.01 to 10 g per 1 g of the Sub-component (i), and Component (B) which is an organoaluminum compound. When polymerizing alpha -olefin monomers having three or more carbon atoms, the catalyst of this invention does not require a process of preliminary polymerization of the monomers, which process is substantially needed when the monomers are polymerized in the presence of a conventional catalyst.</p> |
