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US 2026/0028366 A1Published application
Asymmetrical metallocenes having an isobutyl cyclopentadienyl ligand
AssigneeDow Global Technologies LLC
InventorsRhett A. Baillie, David M. Pearson, Roger L. Kuhlman, Abebu A. Kassie
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Abstract
Embodiments of the present disclosure are directed towards asymmetrical metallocenes having an isobutyl cyclopentadienyl ligand, compositions including those asymmetrical metallocenes, and methods utilizing compositions including the asymmetrical metallocenes.
Claims15
An asymmetrical metallocene represented by structure (I):
- wherein:
- M is Hf or Zr;
- R1 is a (C1-C3)alkyl, a (C4)alkyl except 2-methylpropyl, or a (C5)alkyl;
- and each X is independently a leaving group;
- wherein the (C4)alkyl except 2-methylpropyl is selected from butyl, 1-methylpropyl, and 1,1-dimethylethyl.
2 more elements
(canceled)
Dependencies are inferred from the claim text.