alpha-Olefin polymerisation catalysts comprising perovskite type complex compounds and composite material produced using the same.

摘要

An alpha -olefin polymerization catalyst which comprises a perovskite type complex compound comprising a perovskite type compound represented by the formula ABO3 wherein A is at least one element selected from the group consisting of alkaline earth metals and Pb, and B is at least one element selected from the group consisting of Ti, Zr, Hf and Sn; the complex compound further containing at least one oxide of element selected from the group consisting of rare earth elements, transition elements, Bi, Sb and Sn doped in the perovskite type compound in an amount of 0.1-3 mol %. A composite material which comprises the catalyst having an alpha -olefin polymer deposited thereon, useful as, for example, dielectric ceramic material.