Process for the preparation of a poly-1-olefin
US5648309A · kind A · utility
37Cited by
7References
15Claims
0Family size
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Inventor
Key dates
| Filing date | Mar 6, 1995 |
| Grant date | Jul 15, 1997 |
| Priority date | — |
| Expiry date | Mar 6, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A Ziegler catalyst in which the transition metal component has been prepared by reacting a transition metal compound of titanium, zirconium, vanadium or chromium with a gel-like dispersion of a magnesium alcoholate is used for the preparation of poly-1-olefins, in particular polyethylene. The co-catalyst used is an organoaluminum compound. The polymers are obtained in a high to very high yield, and it is possible to control the particle size distribution of the polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.