Polybenzoxazole membranes from self-cross-linkable aromatic polyimide membranes
US9308503B2 · kind B2 · utility
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Key dates
| Filing date | Jul 29, 2015 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Jul 29, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2323/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for separation of liquid mixtures with a polybenzoxazole (PBO) membrane from a self-cross-linked aromatic polyimide polymer membrane is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.