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US 11,859,031 B2Granted
Alkane-soluble non-metallocene precatalysts
AssigneeDow Global Technologies LLC
InventorsBethany M. Neilson, Roger L Kuhlman, Ian M. Munro, John F. Szul
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Abstract
A compound of formula (1) as drawn herein, wherein M is a Group 4 metal and each R independently is a silicon-free organic solubilizing group. A method of synthesizing the compound (1). A solution of compound (1) in alkane solvent. A catalyst system comprising or made from compound (1) and an activator. A method of polymerizing an olefin monomer with the catalyst system.
Claims9
A compound of formula (1):
- wherein M is Zr or Hf and each R independently is methyl, an unsubstituted (C2-C4)alkyl group, an unsubstituted (C5-C12)alkyl group, or an unsubstituted or substituted quaternary-arylalkyl group;
- and
- wherein at least one R is independently —CH2QCR1R2R3;
- wherein Q independently is unsubstituted phenylene;
- wherein each of R1, R2, and R3 is independently an unsubstituted (C1-C15)alkyl.
2 more elements
A compound of formula (1A):
Dependencies are inferred from the claim text.