Metallocenes containing alkenyloxyphenyl groups producing high molecular weight polyethylene

A process for polymerizing olefins, the process comprising contacting at least one olefin monomer and a catalyst composition under polymerization conditions to form a polyolefin, wherein the catalyst composition comprises the contact product of:

• (a) a metallocene compound having the formula:
• wherein
• M1 is titanium, zirconium, or hafnium;
• X1 is a substituted or an unsubstituted cyclopentadienyl ligand, wherein substituents, when present, are selected independently from a C1-C20 hydrocarbyl group;
• X2 is a substituted or an unsubstituted fluorenyl ligand, wherein substituents, when present, are selected independently from a C1-C20 hydrocarbyl group;
• X1 and X2 are bridged by a linking group having the formula >C[C6H2R1R22][R3], wherein
• R1 is —O(CH2)mCH═CH2;
• R2 in each occurrence is selected independently from H or a C1-C20 hydrocarbyl group;
• R3 is H, a C1-C20 hydrocarbyl group, or [C6H2R4R52];
• R4 is H, a C1-C20 hydrocarbyl group, or —O(CH2)nCH═CH2;
• R5 in each occurrence is selected independently from H or a C1-C20 hydrocarbyl group;
• and
• m and n in each occurrence are selected independently from an integer from 1 to 20;
• and
• X3 and X4 are independently a monoanionic ligand;
• (b) a metallocene activator;
• and
• (c) optionally, a co-catalyst.

A metallocene compound having the formula:

• wherein
• M1 is titanium, zirconium, or hafnium;
• X1 is a substituted or an unsubstituted cyclopentadienyl ligand, wherein substituents, when present, are selected independently from a C1-C20 hydrocarbyl group;
• X2 is a substituted or an unsubstituted fluorenyl ligand, wherein substituents, when present, are selected independently from a C1-C20 hydrocarbyl group;
• X1 and X2 are bridged by a linking group having the formula >C[C6H2R1R22][R3], wherein
• R1 is —O(CH2)mCH═CH2;
• R2 in each occurrence is selected independently from H or a C1-C20 hydrocarbyl group;
• R3 is H, a C1-C20 hydrocarbyl group, or [C6H2R4R52];
• R4 is H, a C1-C20 hydrocarbyl group, or —O(CH2)nCH═CH2;
• R5 in each occurrence is selected independently from H or a C1-C20 hydrocarbyl group;
• and
• m and n in each occurrence are selected independently from an integer from 1 to 20;
• and
• X3 and X4 are independently a monoanionic ligand.