Substituted bis indenyl metallocene catalyst compounds comprising-Si—Si-bridge
US9988410B2 · kind B2 · utility
4Cited by
29References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 2016 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | May 20, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2420/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to novel bridged bis indenyl metallocene catalyst compounds where the bridge is —((R15*)2Si—Si(R15)2)— wherein, each R15 and R15* is identical or different and is a substituted or unsubstituted, branched or unbranched C1-C20 alkyl group, preferably each R15 together do not form a ring, and/or each R15* together do not form a ring, and/or R15 and R15* together do not form a ring. This invention also relates to polymerization processes to produce polymer and to polymer compositions produced by the methods described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.