Polymerization of ethylene in solution processes using a Ziegler-Natta catalyst and a hydrogenation catalyst
US12344695B2 · kind B2 · utility
0Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2020 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Jun 2, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The catalyst system includes a heterogeneous procatalyst and a hydrogenation procatalyst. The heterogeneous procatalyst includes a titanium species, an aluminum species, and a magnesium chloride component. The hydrogenation procatalyst has the formula Cp2TiX2, In formula Cp2TiX2, each Cp is a cyclopentadienyl substituted with at least one R1, wherein R1 is (C1-C10)alkyl; and each X is independently a halogen atom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.