Catalyst composition for copolymerizing ethylene
US4354009A · kind A · utility
39Cited by
4References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1981 |
| Grant date | Oct 12, 1982 |
| Priority date | — |
| Expiry date | Jul 30, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/901
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The copolymerization of ethylene with other alpha olefins in a low pressure gas phase reaction is improved with the use of a catalyst composition prepared by forming a precursor composition from a magnesium compound, titanium compound and electron donor compound; diluting said precursor composition with an inert carrier material; treating said diluted precursor composition with a hydrocarbyl aluminum dihalide compound; and activating the precursor composition treated in this manner with an organo aluminum compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.