Process for the preparation of an active solid hydrocarbon which can be used to polymerize olefines, and a process for the synthesis of an olefinic polymer or copolymer using the said active hydrocarbon as a catalytic system
US4558023A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1984 |
| Grant date | Dec 10, 1985 |
| Priority date | — |
| Expiry date | Feb 23, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/904
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Process for the preparation of an active solid hydrocarbon which can be used to polymerize olefines. This process comprises forming a pulverulent composition by mixing a transition metal component, a porous organic or inorganic solid support and an organometallic compound of the organo-Al, organo-Mg or organo-Zn type, and polymerizing a controlled amount of one or more C.sub.2 to C.sub.12 olefines in the gas phase in contact with the pulverulent composition with a specific hourly conversion of the olefines to produce the active solid hydrocarbon. The above active solid hydrocarbon can be used, by itself or together with an organometallic cocatalyst, as a catalytic system for polymerization of olefines, in particular in the gas phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.