Bimetallic metallocene alumoxane catalyst system and its use in the preparation of ethylene-alpha olefin and ethylene-alpha olefin-non-conjugated diolefin elastomers
US5442020A · kind A · utility
24Cited by
6References
7Claims
0Family size
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Key dates
| Filing date | Aug 30, 1994 |
| Grant date | Aug 15, 1995 |
| Priority date | — |
| Expiry date | Aug 30, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A catalyst system comprising certain bimetallic metallocenes and an alumoxane is provided together with a process for the preparation of high molecular weight ethylene-alpha olefin elastomers and ethylene-alpha-olefin nonconjugated diolefin elastomers wherein the requisite monomers are polymerized in the presence of the bimetallic metallocene/alumoxane catalyst system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.