Biscyclopentadienyldiene complex containing addition polymerization catalysts
US5972822A · kind A · utility
49Cited by
18References
21Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers comprising biscyclopentadienyl, Group 4 transition metal complexes formed with conjugated dienes wherein the diene is bound to the transition metal either in the form of a .sigma.-complex or a .pi.-complex in combination with a cocatalyst or subjected to bulk electrolysis in the presence of compatible, inert non-coordinating anions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.