Propylene polymers and process for the preparation thereof
US6703457B2 · kind B2 · utility
33Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2002 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Jan 18, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2420/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparing propylene polymer comprising contacting, under polymerization conditions, propylene and optionally ethylene, with a catalyst system comprising a bridged metallocene and a suitable activating cocatalyst, said process being characteized by reducing the concentration of hydrogen formed during the polymerization reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.