Post-metallocene complexes based on bis(naphthoxy)pyridine and bis(naphthoxy)thiophene ligands for the polymerisation of ethylene and alpha-olefins
US8519070B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Feb 17, 2009 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Dec 25, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F4/65912
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to the field of group 4 post-metallocene complexes based on sterically encumbered bis(naphthoxy)pyridine and bis(naphthoxy)thiophene ligands. It also relates to the use of such post-metallocene complexes in the polymerization of ethylene and alpha-olefins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.