Polymers with improved ESCR for blow molding applications
US9169337B2 · kind B2 · utility
61Cited by
62References
27Claims
0Family size
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Key dates
| Filing date | Mar 12, 2014 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Mar 12, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2500/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed herein are ethylene-based polymers having a higher molecular weight component and a lower molecular weight component, and characterized by a density greater than 0.945 g/cm3, a melt index less than 1.5 g/10 min, and a ratio of high load melt index to melt index ranging from 40 to 175. These polymers have the processability of chromium-based resins, but with improved stiffness and stress crack resistance, and can be used in blow molding and other end-use applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.