Patent ID: 7005400

Claim:
A catalyst for polymerizing an olefin, which comprises: a transition metal complex compound having an olefin-polymerizing ability; wherein the transition metal complex compound is selected from the group consisting of a metallocene compound comprising a group 4 metal, a bisamide compound comprising a group 4 metal, and a salicylaldiminato compound comprising a metal from any one of groups 4 to 10; and a co-catalyst comprising an elemental hydroxide supported on a surface of a carrier comprising an elemental oxide, wherein said element of the elemental oxide is selected from the group consisting of Si, Al, Zr, and Ti; wherein said carrier has a crushing strength of 0.5 to 25 MPa; and wherein the element of the elemental hydroxide is different from the element of the elemental oxide of the carrier, and is selected from the group consisting of Be, Mg, Ca, Zn, Cd, B, Al, Ga, Y, La, Si, Sn, Zr, Ti, and combinations thereof.