Polyimide membranes
First Claim
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1. A membrane comprising:
- a plurality of electrospun polyimide fibers encased in an electrospun fluoroelastomer sheath, wherein the fluoroelastomer sheath has a curing temperature of from about 150°
C. to about 360°
C., the plurality of fibers having a diameter of from about 10 nm to about 50 microns, wherein the plurality of fibers form a permeable mat wherein the polyimide fibers are represented by
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Abstract
There is provided a membrane that includes a plurality of polyimide fibers encased in a fluoropolymer sheath, the plurality of fibers having a diameter of from about 10 nm to about 50 microns, wherein the plurality of fibers form a permeable non-woven mat. A method of manufacturing the membrane is provided.
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12 Claims
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1. A membrane comprising:
a plurality of electrospun polyimide fibers encased in an electrospun fluoroelastomer sheath, wherein the fluoroelastomer sheath has a curing temperature of from about 150°
C. to about 360°
C., the plurality of fibers having a diameter of from about 10 nm to about 50 microns, wherein the plurality of fibers form a permeable mat wherein the polyimide fibers are represented by- View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A membrane comprising:
a plurality of electrospun polyimide fibers encased in an electrospun fluoroelastomer sheath, the plurality of fibers having a diameter of from about 100 nm to about 1 microns, wherein the plurality of fibers form a permeable mat and wherein the mat comprises an oil contact angle of larger than about 90 degrees at a temperature above about 100°
C. wherein the polyimide fibers are represented by- View Dependent Claims (9, 10, 11, 12)
Specification