Bisaryl metallocenes and use thereof to produce polyolefins
US9422319B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Apr 2, 2015 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Apr 2, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F4/65916
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present disclosure provides metallocene catalysts for use in polymerization processes. Such catalysts may be used to generate polymers with low branching and high molecular weights. Also, the present disclosure provides methods of bimodal polymerization resulting in a duality of average molecular weight polymers being simultaneously produced. In the system, the size of the polymers produced can be controlled by modifying the type and amount of catalyst activator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.