Substituted group 4 metal complexes, catalysts and olefin polymerization process
US6515155B1 · kind B1 · utility
95Cited by
7References
12Claims
0Family size
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Key dates
| Filing date | Nov 17, 2000 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Nov 29, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Group 4 metal complexes of the constrained geometry type, catalysts derived therefrom and polymerization processes using the same, characterized by a nitrogen containing aliphatic or cycloaliphatic moiety that is substituted with one or more aryl groups, an aryl-substituted silane bridging group, or one or more Group 14 organometalloid substituted hydrocarbyl substituents on the metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.