作者: Mitsuyuki C O Mitsubi Matsuura , Katsumi C O Mitsubish Hirakawa , Takashi C O Mitsubishi Fujita
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摘要: A catalyst for olefin polymerization which comprises a combination of: Component is solid component obtained by contacting (i) comprising titanium, magnesium and halogen as essential elements with (ii), silicon compound represented formula: R 1 2 3-n Si(OR 3 ) n where stands branched hydrocarbon radical, radical the same or different from number satisfying an equation: 1≦n≦3; B organoaluminum compound; C formula M(OR 4 x 5 y X z in M element selected group consisting of B, Al, C, Si, Sn, P, S, Cl, Br, I, Fe, Ti, V, Zr, Mg, Ca Zn, each stand having to 20 carbon atoms are other atom, x, equal zero less than valence sum M.