Filtration Media for High Humidity Environments
AssigneeE. I. Du Pont de Nemours and Company
InventorsDavid Charles Jones, Junaid Ahmed Siddiqui
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Abstract
The invention is directed to a nanofiber that contains at least one moisture sensitive polymer. The fiber also contains nanoparticles of a hydrogen bonding material incorporated into the body of the fiber. The hydrogen bonding material is present in an amount corresponding to greater than 2% of the polymer weight and the nanofiber has a mean fiber diameter measured along its length of less than one micron. Also included are filter media made from nanowebs of the fiber.
Claims19
A nanofiber comprising at least one moisture sensitive polymer and essentially spherical nanoparticles of a hydrogen bonding material incorporated into the body of the fiber, wherein the material is present in an amount corresponding to greater than 2% of the polymer weight and the nanofiber has a mean fiber diameter measured along its length of less than one micron.
A filter media comprising a nanoweb, said nanoweb comprising moisture sensitive polymeric fibers of a number average fiber diameter of one micron or less, said fibers comprising essentially spherical nanoparticles of a hydrogen bonding material, wherein the material is present in an amount corresponding to greater than 2% of the polymer weight.
A process for filtering air comprising the step of passing the air through a media, said media comprising a nanoweb, said nanoweb comprising moisture sensitive polymeric fibers of a number average fiber diameter of one micron or less, said fibers comprising nanoparticles of a hydrogen bonding material incorporated into the body of the fiber, wherein the material is present in an amount corresponding to greater than 2% of the polymer weight.
Dependencies are inferred from the claim text.