Method of producing polyethylene and polyethylene thereof
US11034783B2 · kind B2 · utility
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14References
7Claims
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Key dates
| Filing date | Feb 18, 2019 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | May 30, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A system and method of producing polyethylene, including: polymerizing ethylene in presence of a catalyst system in a reactor to form polyethylene, wherein the catalyst system includes a first catalyst and a second catalyst; and adjusting reactor conditions and an amount of the second catalyst fed to the reactor to control melt index (MI), density, and melt flow ratio (MFR) of the polyethylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.