Porous membrane and process for producing porous membrane
US10974204B2 · kind B2 · utility
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2References
13Claims
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Key dates
| Filing date | Jun 14, 2017 |
| Grant date | Apr 13, 2021 |
| Priority date | — |
| Expiry date | Aug 2, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2325/341
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A porous membrane has a thickness of 150 μm or greater. The pore diameters of a first surface are smaller than the pore diameters of a second surface. The average value of the pore diameters of the first surface is 60 nm or less, and the coefficient of variation of the pore diameters is 10% or greater and 50% or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.