Homogeneous catalysts and olefin polymerization process
US5194532A · kind A · utility
6Cited by
7References
6Claims
0Family size
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Key dates
| Filing date | Jun 12, 1992 |
| Grant date | Mar 16, 1993 |
| Priority date | — |
| Expiry date | Jun 12, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Olefins are polymerized in the presence of a homogeneous catalyst represented by the formula LTi(NR.sub.2).sub.3 wherein L is a .pi.-bonded ligand selected from the group consisting of indenyl, C.sub.1 -C.sub.4 alkyl substituted indenyl, --OSiR.sub.3 substituted indenyl, R is a C.sub.1 -C.sub.4 alkyl group wherein each R attached to the same nitrogen atom is the same, but the R groups attached to different nitrogen atoms can be the same or different from those attached to the other nitrogen atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.