Porous membrane formed from interpenetrating polymer network having hydrophilic surface
US5079272A · kind A · utility
105Cited by
5References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 30, 1989 |
| Grant date | Jan 7, 1992 |
| Priority date | — |
| Expiry date | Nov 30, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/903
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A porous membrane is formed from an interpenetrating polymer network of a hydrophobic polymer and a polymerized and crosslinked hydrophilic monomeric composition. A solution of the polymer and monomeric composition is cast, exposed to ultraviolet radiation, coagulated and dried. The resulting dried membrane is annealed in order to render its surface hydrophilic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.