Multi reactor solution polymerization, polyethylene and polyethylene film
US10538654B2 · kind B2 · utility
9Cited by
13References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2017 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Dec 30, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2314/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This disclosure relates to a continuous solution three reactor polymerization process. Process solvent, ethylene, optional comonomers, optional hydrogen and a single site catalyst system are injected into a first and second reactor configured in parallel to one another. A third reactor receives effluent from the first reactor, the second reactor, or a combination of the first and second reactors. Fresh monomer is feed to the third reactor for further polymerization and to give a final polyethylene product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.