Process to produce low viscosity polyalphaolefins using non-aromatic-hydrocarbon soluble activators
US12344696B2 · kind B2 · utility
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Key dates
| Filing date | Jul 28, 2020 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Mar 19, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for making a poly alpha-olefin (PAO) having high vinylidene content (or combined vinylidene and tri-substituted vinylene content) and low vinyl and/or di-substituted vinylene content, as well as a relatively low molecular weight comprising contacting a feed containing a C6-C32 alpha-olefin with a catalyst system comprising non-aromatic-hydrocarbon soluble activator and a metallocene compound, typically a cyclopentadienyl-tetrahydro-s-indacenyl group 4 transition metal compound.
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