Process for copolymerizing ethene and alpha-olefins
US6043326A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1996 |
| Grant date | Mar 28, 2000 |
| Priority date | — |
| Expiry date | Nov 26, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Ethene having a profitable .alpha.-olefin distribution and an .alpha.-olefin copolymer have been prepared with a process comprising reacting of at least the following components with each other: PA1 a) a procatalyst comprising a halogen compound of a transition metal in any of groups 4 to 8 of the periodic table of elements, PA1 b) a cocatalyst comprising an organohalogenous compound of a metal in group 2 or 3 of the periodic table of elements, PA1 c) ethene and PA1 d) one or more .alpha.-olefins copolymerizing with ethene, being characterised in that the organohalogenous compound of the metal in group 2 or 3 is prepared by reacting the organic compound of the metal in group 2 or 3 and a catalytically non-toxic halogen compound during copolymerization, or not earlier than 3 hours before copolymerization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.