Catalyst composition for polymerizing ethylene
US5019633A · kind A · utility
13Cited by
4References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1987 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Jun 29, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F110/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Catalyst compositions suitable for producing high density ethylene polymers in a low pressure gas phase process with low accompanying ethylene hydrogenation are produced 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 compositon with a boron halide compound; and activating the precursor composition with an organo aluminum compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.