High activity catalyst supportation
US9725537B2 · kind B2 · utility
12Cited by
24References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2016 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Apr 29, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2420/09
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to single site catalyst supportation methods involving high temperature treatment (≧40° C., e.g., 100-130° C.) to improve catalyst activity for olefin polymerization, e.g., propylene polymerization, and to the supported catalyst systems obtained by the methods, e.g., single site catalyst systems supported on a support having high average particle size (PS≧30 μm), high surface area (SA≧200 m2/g), low pore volume (PV≦2 mL/g), and a mean pore diameter range of 1≦PD≦20 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.