Cyclopentaphenanthrenyl metal complexes and polymerization process
US6150297A · kind A · utility
72Cited by
1References
8Claims
0Family size
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Key dates
| Filing date | Jul 27, 1998 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | Jul 27, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Group 4 metal complexes comprising a cyclopentaphenanthreneyl ligand, catalytic derivatives thereof and their use as olefin polymerization catalysts, especially for the copolymerization of ethylene and a vinylaromatic monomer are disclosed. The resulting copolymers are uniform, pseudo-random copolymers of ethylene and a vinylaromatic monomer having a cluster index, CI.sub.ES less than 1.0 and a polymerized vinylaromatic monomer content less than 50 mole percent.
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