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US 10,196,495 B2Granted
Functionalized porous membranes and methods of manufacture and use
AssigneeCelgard, LLC
InventorsKristoffer K. Stokes, Karl F. Humiston
Life of this patent
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Abstract
A functionalized microporous, mesoporous, or nanoporous membrane, material, textile, composite, laminate, or the like, and/or a method of making or using such functionalized membranes. The functionalized porous membrane may be a functionalized microporous, mesoporous, or nanoporous membrane that has a functional molecule attached, such as a functional polymer, to the surface and/or internal fibrillar structure of the membrane.
Claims18
A functionalized porous membrane comprising:
- a microporous, mesoporous, or nanoporous membrane having a surface and an internal fibrillar structure, and
- a functional molecule attached by a plasma vapor deposition process to:
- the surface of the membrane, the internal fibrillar structure of the membrane, or a combination thereof, and the functional molecule is a fluorinated polymer,
- wherein the functionalized membrane has, when compared to the same membrane that does not have the plasma vapor deposited functional molecule, an equivalent or better air permeability as measured by JIS Gurley, and an increased oil repellency as measured by AATCC TM 118.
1 more element
Dependencies are inferred from the claim text.