Fiber web having a high stiffness
AssigneeHollingsworth & Vose Company
InventorsBruce Smith, Sudhakar Jaganathan
Life of this patent
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Abstract
The fiber webs described herein may be incorporated into filter media and filter elements. The webs may exhibit a high permeability and stiffness, at a low thickness. The stiffness can be sufficient for the webs to be pleated to include sharp, well-defined peaks which can be maintained in a stable configuration during use.
Claims33
A fiber web having a permeability of greater than about 500 cfm/sf, a stiffness of greater than about 500 mg, and a thickness of less than about 25 mils.
A fiber web having a permeability of greater than about 500 cfm/sf, a thickness of less than about 25 mils, and a stiffness of greater than about 500 mg, the fiber web comprising multi-component fibers, wherein the multi-component fibers comprise greater than 50 percent by weight of the total weight of fibers in the fiber web.
A fiber web having a permeability of greater than about 500 cfm/sf, a stiffness of greater than about 500 mg and a thickness of less than about 25 mils, wherein the fiber web comprises binder fibers and a resin, wherein the binder fibers comprise a polymer and the resin comprises a polymer, and the polymer of the binder fibers is in the same class as the polymer of the resin.
A method of filtering a fluid, the method comprising:
- filtering a fluid using a filter element comprising a fiber web, the fiber web having a permeability of greater than about 500 cfm/sf, a stiffness of greater than about 500 mg, and a thickness of less than about 25 mils.
A method of manufacturing a fiber web comprising:
- forming a fiber web that has a permeability of greater than about 500 cfm/sf, a stiffness of greater than about 500 mg, and a thickness of less than about 25 mils.
Dependencies are inferred from the claim text.