Heterocyclic nitrogen-containing activators and catalyst systems for olefin polymerization
US6930070B2 · kind B2 · utility
3Cited by
9References
33Claims
0Family size
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Key dates
| Filing date | Jun 24, 2003 |
| Grant date | Aug 16, 2005 |
| Priority date | — |
| Expiry date | Sep 22, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F110/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An aluminum activator and catalyst system for olefin polymerization is provided. In one aspect, the catalyst system comprises a polymerization catalyst and an activator comprising two or more heterocyclic nitrogen-containing ligands coordinated to a Group 13 atom. Preferably, the activator is a reaction product of one or more Group 13 atom-containing compounds and one or more heterocyclic nitrogen-containing compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.