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US 5,102,917 AGranted
Porous polysulfone media suitable for filtration
AssigneeCPC Engineering Corporation
InventorsWilliam B. Bedwell, Stephen F. Yates
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Abstract
A porous polysulfone membrane and process for the preparation of porous polysulfone media suitable for use in filtration comprises blending polysulfone with a particulate solid or with said particulate solid and a second polymer, extruding the resultant blend to form an article and leaching the particulate solid and second polymer from the article.
Claims19
A process for the preparation of porous polysulfone media suitable for use in filtration comprising:
- blending a polysulfone polymer with an inorganic solid or with said inorganic solid and a second polymer selected from the group consisting of polyethylene oxide, polyvinylpyridine and a mixture thereof;
- extruding the resultant blend to form an article of a desired shape;
- and
- removing the second polymer and the inorganic solid from the article to form the porous polysulfone media.
1 more element
Dependencies are inferred from the claim text.