One pot preparation of bimetallic catalysts for ethylene 1-olefin copolymerization
US6417130B1 · kind B1 · utility
17Cited by
140References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1996 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | Mar 25, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process of forming a bimetallic catalyst composition comprising a cocatalyst (a trialkylaluminum compound) and a catalyst precursor. The precursor comprises at least two transition metals; a metallocene complex is a source of one of said two transition metals. The precursor is produced in a single-pot process by contacting a porous carrier, in sequence, with a dialkylmagnesium compound, an aliphatic alcohol, a non-metallocene transition metal compound, a contact product of a metallocene complex and a trialkylaluminum compound, and methylalumoxane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.