Patent ID: 8124557

Claim:
A supported metallocene catalyst-cocatalyst structure consisting of: a group 13 metal-containing organometallic compound as a cocatalyst component a carrier; and a metallocene compound; wherein the cocatalyst is bound to the carrier through a bond between a hydroxyl oxygen on the carrier surface and the group 13 metal atom; and the metallocene compound is connected to said cocatalyst bound to the carrier, the metallocene compound being connected to said cocatalyst through an acid-base interaction between a Lewis base group of the metallocene compound and a Lewis acid of the group 13 metal atom, as well as an ionic bond between the metallocene compound and the cocatalyst, said metallocene compound being selected from the group consisting of subgroups 1-3; wherein subgroup 1 consists of compounds of general formulas [A-O—(CH 2 ) a —C 5 H 4 ] 2 ZrCl 2 and [A-O—(CH 2 ) a —C 9 H 6 ]ZrCl 3 ; subgroup 2 consists of compounds of general formulas [A-O—(CH 2 ) a —C 5 H 4 ]C(CH 3 ) 2 [C 13 H 8 ]ZrCl 2 , [A-O—(CH 2 ) a —C 5 H 4 ]Si(CH 3 ) 2 [C 13 H 8 ]ZrCl 2 , [C 5 H 5 ]C(CH 3 )(A-O—(CH 2 ) a )[C 13 H 8 ]ZrCl 2 and [C 5 H 5 ]Si(CH 3 )(A-O—(CH 2 ) a )[C 13 H 8 ]ZrCl 2 ; and subgroup 3 consists of compounds of a general formula [(A′-D-(CH 2 ) a )](CH 3 )X(C 5 Me 4 )(NCMe 3 )]TiCl 2 , said a being an integer ranging from 4 to 8, said A being a radical selected from the group consisting of methoxymethyl, t-butoxymethyl, tetrahydropyranyl, tetrahydrofuranyl, 1-ethoxyethyl, 1-methyl-1-methoxyethyl, and t-butyl, said X being methylene, ethylene, or silicon, said D being an oxygen or a nitrogen atom, and said A′ being a radical selected from the group consisting of a hydrogen atom, C 1 -C 20 alkyl, alkenyl, aryl, alkylaryl, arylalkyl, alkylsilyl, arylsilyl, methoxymethyl, t-butoxymethyl, tetrahydropyranyl, tetrahydrofuranyl, 1-ethoxyethyl, 1-methyl-1-methoxyethyl, and t-butyl; and wherein the Lewis base group is one or more atoms selected from the oxygen and nitrogen atoms within the metallocene compound, and wherein said carrier is silica, silica-alumina, or silica-magnesia dried at 200 to 400° C.