Catalysts, method of preparing these catalysts, and polymerization processes wherein these catalysts are used
US5483014A · kind A · utility
52Cited by
2References
20Claims
0Family size
Inventors
Key dates
| Filing date | Sep 6, 1994 |
| Grant date | Jan 9, 1996 |
| Priority date | — |
| Expiry date | Sep 6, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polymerization process for olefins, diolefins and/or acetylenically unsaturated monomers is described. The monomers are contacted with an ionic catalyst which comprises a cyclopentadienyl derivative of Group IV-B metals as cation and a compatible non-coordinating anion containing a plurality of boron atoms. Borate, carborate, borane, carborane, metallaborane and metallacarborane compounds exemplify anion sources and dihydrocarbyl-substituted bis(cyclopentadienyl) zirconium compounds exemplify the Group IV-B metal cation sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.