Hybrid supported metallocene catalyst and method of preparing polypropylene using the same
US12421334B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Jun 11, 2020 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Oct 18, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided are a hybrid supported metallocene catalyst comprising one or more first metallocene compounds selected from compounds represented by the following Chemical Formula 1; one or more second metallocene compounds selected from compounds represented by the following Chemical Formula 2, and showing high activity in propylene polymerization and being usefully applied to the preparation of a polypropylene having high melt strength by introducing long chain branches into the polypropylene molecule, and a method of preparing a polypropylene using the same
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.