Polymerization process
US7728084B2 · kind B2 · utility
1Cited by
44References
54Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2005 |
| Grant date | Jun 1, 2010 |
| Priority date | — |
| Expiry date | Apr 23, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention is directed to processes of making polymer in the presence of a hydrofluorocarbon or perfluorocarbon and recovering the polymer. The processes provided enable polymerization processes to be practiced with minimal fouling in the reaction system, and to the recovery of the hydrofluorocarbon and other hydrocarbons such as hydrocarbons for reuse in the process or hydrocarbon by-products from the polymerization process. The invention is particularly beneficial in the production of ethylene based polymers using Ziegler Natta catalyst systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.