Ziegler-Natta produced polyethylene and methods thereof
US11780942B2 · kind B2 · utility
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35Claims
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Key dates
| Filing date | Oct 26, 2020 |
| Grant date | Oct 10, 2023 |
| Priority date | — |
| Expiry date | May 29, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2500/37
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process of producing a composition comprising a copolymer of ethylene and one or more C4-C8 α-olefins, may include copolymerizing the ethylene and the one or more C4-C8 α-olefins in the presence of a procatalyst and an alkylaluminum cocatalyst. The procatalyst may be a Ti-containing Ziegler Natta procatalyst and the polymerization may include the procatalyst and the alkylaluminum cocatalyst in amounts such that a molar ratio of Al:Ti ranges from about 0.5 to about 50.0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.