Process for preparing an ethylene-based copolymer
US5270407A · kind A · utility
11Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1992 |
| Grant date | Dec 14, 1993 |
| Priority date | — |
| Expiry date | Dec 10, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a process for copolymerizing ethylene and .alpha.-olefin, or ethylene, .alpha.-olefin, and an unconjugated diene, in the presence of a catalyst in which at least one kind of transition metal compound, such as a V, Zr, or Hf compound, and an organic aluminum compound, are supported, and with the coexistence of a polysiloxane compound. By the process of the present invention fouling can be prevented when an ethylene-based copolymer is industrially prepared. Thus a continuous operation is made possible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.