Supported olefin polymerization catalysts
US6281155A · kind A · utility
3Cited by
22References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1999 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Nov 19, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Supported heterometallocene catalysts wherein the support is a particulate polymeric material are provided. The catalysts have a transition metal complex containing at least one anionic, polymerization stable heteroatomic ligand associated with the transition metal and a boron activator compound deposited on the support. Polymeric supports used for the heterometallocene catalysts of the invention are homopolymers of ethylene and copolymers of ethylene and C.sub.3-8 .alpha.-olefins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.