Methods for making polyethylene polymers
US11230614B2 · kind B2 · utility
0Cited by
8References
14Claims
0Family size
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Key dates
| Filing date | Dec 13, 2017 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Apr 2, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Methods for reducing gels and/or dome sheeting in gas phase polymerization processes and their resulting products are provided. The polymerization processes include polymerizing ethylene and one or more optional comonomers in a fluidized bed reactor in the presence of a metallocene catalyst, hydrogen, and at least one condensing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.