Bimodal polypropylene compositions and method of making same
US10266685B2 · kind B2 · utility
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4References
26Claims
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Key dates
| Filing date | Jun 20, 2017 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Aug 12, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/025
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a bimodal polypropylene composition comprising a blend of a HMW polypropylene component and a LMW polypropylene component, where the high molecular weight (HMW) component of the bimodal composition has a z-average molecular weight Mz of more than 400,000 g/mole, and a process to make such composition. The composition is suitable for thermoformed articles and injection molded articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.