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US 6,207,251 B1Granted
Reinforced particle-loaded fibrillated PTFE web
AssigneeMinnesota Mining and Manufacturing Company
InventorsWilliam V. Balsimo, Lloyd R. White
Life of this patent
Estimating the term…
Abstract
A composite article including a particle-loaded fibrillated polytetrafluoroethylene web with a reinforcing screen or scrim partially embedded therein.
Claims5
A liquid permeable separation science medium for removing one or more solutes from a fluid comprising:
- a) a porous liquid permeable fibrillated polytetrafluoroethylene web having particles entrapped therein, said particles being chemically reactive or sorptive toward said one or more solutes;
- and
- b) a liquid permeable non-woven scrim at least partially embedded in said web.
A method of making a porous, liquid permeable reinforced particle-loaded fibrillated polytetrafluoroethylene web article capable of removing one or more solutes from a fluid comprising the steps:
- a) providing a porous, liquid permeable fibrillated polytetrafluoroethylene web having particles entrapped therein, said particles being chemically reactive or sorptive toward said one or more solutes;
- and
- b) pressure bonding to said web a liquid permeable scrim, said scrim being at least partially embedded in said web,
- said pressure bonding step leaving the porosity and liquid permeability of said web essentially unchanged.
1 more element
Dependencies are inferred from the claim text.