Single site catalyst supportation
US9920176B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2016 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Apr 29, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2423/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to catalyst supports having high surface area (SA≥400 m2/g), low pore volume (PV≤2 mL/g), a specific mean pore diameter range (PD=1-20 nm), and high average particle size (PS≥30 μm), supported catalysts, and supportation processes; and further relates to: high porosity (≥15%) and/or low pore diameter (PD<165 μm) propylene polymers; bimodal polymers and/or heterophasic copolymers based on the high porosity and/or low pore diameter propylene polymers; propylene polymerization processes using the supported catalysts and/or to prepare the high porosity and/or low pore diameter propylene polymers, bimodal polymers and/or heterophasic copolymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.