Magnesium chloride support
US7402546B2 · kind B2 · utility
3Cited by
16References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2004 |
| Grant date | Jul 22, 2008 |
| Priority date | — |
| Expiry date | May 3, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2991
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to supports comprising inorganic oxide particles coated with magnesium chloride and a method for making them. The inorganic oxide has a mean particle diameter of less than 5 microns and is used as a seed to crystallize magnesium chloride from solution. The magnesium chloride-coated inorganic oxide is useful for supporting transition metal compounds; the supported transition metal compounds are used as catalysts for polymerizing olefins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.