Component of catalyst for polymerizing olefin, catalyst for polymerizing olefin and process for polymerizing olefin
AssigneeJapan Polychem Corporation
InventorTadashi Takahashi
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Abstract
A component of a catalyst for polymerizing an olefin, comprises: a carrier containing an inorganic oxide selected from silica, alumina, zirconia and titania and having a crushing strength of 0.5 to 25 MPa; and at least one member selected from oxides or hydroxides of metals of the groups 2, 3, 4, 13 and 14 in the periodic table, the metals being different from the metal constituting the inorganic oxide in the carrier, wherein the at least one member is supported on the surface of the carrier, so as to provide a novel catalyst component suitable for particle polymerization of an olefin and enabling to easily change molecular weight distribution of the resultant polymer.
Claims23
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.
A catalyst for polymerizing an olefin, which comprises:
- a transition metal complex compound having an olefin-polymerizing ability;
- wherein the transition metal complex compound having an olefin-polymerizing ability comprises a bisimino compound comprising a metal of one of the groups 8 to 10;
- 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;
- and
- 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;
- and
- wherein the elemental oxide-hydroxide supported on the surface of the carrier is obtained by a process comprising an ion-exchanging technique in an aqueous solution.
Dependencies are inferred from the claim text.