Membrane made of a blend of UHMW polyolefins
US12166166B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Sep 28, 2020 |
| Grant date | Dec 10, 2024 |
| Priority date | — |
| Expiry date | Jul 19, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A membrane is a microporous sheet made of a blend of a first ultra high molecular weight polyolefin and a second ultra high molecular weight polyolefin. Each polyolefin has a molecular weight, both of those molecular weights are greater than 1 million, and one molecular weight is greater than the other. Additionally, the intrinsic viscosity (IV) of the membrane may be greater than or equal to 6.3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.