Homogeneous, stabilized, reduced metal addition polymerization catalysts, process for preparation and method of use
US5723398A · kind A · utility
13Cited by
9References
7Claims
0Family size
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Key dates
| Filing date | Jul 6, 1995 |
| Grant date | Mar 3, 1998 |
| Priority date | — |
| Expiry date | Jul 6, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Addition polymerization catalysts-comprising 1) a Group 4 metal complex in the .sup.+ 3 oxidation state containing two delocalized .pi.-bonding moieties, and a stabilizing ligand covalently bonded to the metal and also datively bonded to the metal via lone pair electrons of an amine, phosphine, ether or thioether group and 2) an activating cocatalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.