Semipermeable membrane
US10926230B2 · kind B2 · utility
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3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2017 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Mar 24, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2325/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Provided is a semipermeable membrane having a high chlorine resistance. The semipermeable membrane is formed of a cellulose ester, the cellulose ester having an optionally substituted benzoyl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.