Method for preparing a spray-dried composition for use as a polymerization catalyst
US6806221B2 · kind B2 · utility
6Cited by
15References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2002 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Jul 15, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of making a spray-dried composition using a solution or mixture comprising the reaction product of a magnesium halide, a solvent, an electron donor compound, and a transition metal compound and an inert filler comprising substantially spherical particles having an average particle size ranging from 1 &mgr;m to about 12 &mgr;m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.