Catalysts for preparing ultra high molecular weight polyethylene (UHMWPE)
US9163100B2 · kind B2 · utility
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4References
22Claims
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Key dates
| Filing date | Aug 2, 2012 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Aug 2, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J31/18
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Group 4 transition metal complexes of bidentate iminonaphthol pro-ligands can be used as catalysts to polymerise olefins, such as ethylene. Group 4 transition metal complexes of bidentate iminonaphthol pro-ligands can have a single-site nature, allowing the catalysts to be used to prepare ultra high molecular weight polyethylene having a narrow molecular weight distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.