Addition polymerization catalysts comprising reduced oxidation state metal complexes
US5532394A · kind A · utility
20Cited by
4References
5Claims
0Family size
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Key dates
| Filing date | Sep 2, 1994 |
| Grant date | Jul 2, 1996 |
| Priority date | — |
| Expiry date | Sep 2, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Metal complexes useful in the formation of addition polymerization catalysts of the formula: ##STR1## wherein Cp"' is a cyclopentadienyl group or substituted derivative thereof; Z is a divalent moiety comprising oxygen, nitrogen, phosphorous, boron or a member of Group 4 of the Periodic Table of Elements; Y is a linking group comprising nitrogen, phosphorus, oxygen or sulfur; M is a Group 4 metal in the +3 oxidation state; and L"' is a monovalent anionic stabilizing ligand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.