Polymerization process
US7449530B2 · kind B2 · utility
5Cited by
5References
52Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2005 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Aug 21, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/912
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention is directed to processes of making polymer in the presence of a fluorinated hydrocarbon and recovering the polymer. The processes provided enable polymerization processes to be practiced with minimal fouling in the reaction system, and allows for the recovery of the fluorinated hydrocarbon and other hydrocarbons such as hydrocarbons for re-use in the process or hydrocarbon by-products from the polymerization process. The invention is particularly beneficial in the production of propylene-ethylene based copolymers using Ziegler-Natta catalyst systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.