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US 2026/0158480 A1Published application
Catalysts for Olefin Metathesis, Methods of Preparation, and Processes for the Use Thereof
OwnerGursu Culcu, Alexander V. Zabula +2inventors
InventorsGursu Culcu, Alexander V. Zabula, Alan A. Galuska, David A. Cano
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Abstract
The present disclosure relates to tungsten complexes, catalyst systems including tungsten complexes, and polymerization processes to produce polycycloolefin polymers such as polycyclopentene polymers and polycyclooctene polymers.
Claims7
-33. (canceled)
A catalyst compound represented by Formula (II):
- where:
- E is O, S, Te, Se, or NR″;
- each instance of R is independently a hydrocarbyl or substituted hydrocarbyl, a heteroatom or a heteroatom-containing group, provided that when E is O, R is not tert-butyl or tert-butoxy;
- R″ is a hydrocarbyl or substituted hydrocarbyl, a heteroatom or a heteroatom-containing group;
- X is a halogen, C1 to C10 hydrocarbyl, or a substituted C1 to C10 hydrocarbyl;
- and
- L is a Lewis base.
4 more elements
Dependencies are inferred from the claim text.