Polyolefin production
US7449527B2 · kind B2 · utility
7Cited by
7References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 24, 2003 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Sep 2, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F110/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is a process for producing a polyolefin having a multimodal molecular weight distribution, which process comprises: (a) polymerizing a first olefin monomer in the presence of an isomerizable metallocene catalyst, to form a first multi-modal polyolefin component; and (b) polymerizing a second olefin monomer in the presence of a second metallocene catalyst to form a second polyolefin component; wherein the molecular weight distribution of the first polyolefin component overlaps with the molecular weight distribution of the second polyolefin component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.