Functional, photochemically active, and chemically asymmetric membranes by interfacial polymerization of derivatized multifunctional prepolymers
US4917800A · kind A · utility
349Cited by
1References
18Claims
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Key dates
| Filing date | Jul 19, 1988 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Jul 19, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The preparation of a novel class of thin film membranes by interfacial polymerization is disclosed, said membranes incorporating as part of their polymeric structure the functionality of monomeric or oligomeric precursors. Specific embodiments include porphyrin and phthalocyanine derivatives that are photochemically or electrochemically active, as well as chemically asymmetric membranes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.