Enhanced processability of LLDPE by addition of ultra-high molecular weight density polyethylene
US11952480B2 · kind B2 · utility
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65References
17Claims
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Key dates
| Filing date | Feb 5, 2019 |
| Grant date | Apr 9, 2024 |
| Priority date | — |
| Expiry date | Aug 6, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/068
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In some embodiments, the present disclosure provides a composition comprising 1) about 97.5 wt % to about 99.9 wt % of a first polyethylene having a density of about 0.91 g/cm3 to about 0.94 g/cm3, and a melt strength of about 10 mN or greater; and 2) about 0.1 wt % to about 2.5 wt % of a second polyethylene having an Mw of about 500,000 g/mol or more. In some embodiments, the composition is a film. In some embodiments, the present disclosure provides a method of making a composition comprising blending a first polyethylene of any embodiment described herein and a second polyethylene of any embodiment described herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.