Process for preparing a prepolymerized olefin polymerization catalyst
US5494871A · kind A · utility
5Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1995 |
| Grant date | Feb 27, 1996 |
| Priority date | — |
| Expiry date | Feb 3, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/904
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A stable, long-lived catalyst composition, well suited for the polymerization of olefins, e.g., of ethylene, comprises intimate admixture of particulates of an olefin prepolymer and a catalytically effective amount of particles of a metallic olefin polymerization catalyst, such olefin prepolymer particulates having a particle size distribution narrower than the particle size distribution of the metallic catalyst particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.