Porous fibrous sheets of nanofibers
AssigneeE. I. Du Pont de Nemours and Company
InventorsIoannis V. Bletsos, Joseph Robert Guckert, Mikhail R. Levit, David Carl Roberts
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Abstract
Porous fibrous sheets are provided that are useful in end uses requiring microbial barrier properties such as medical packaging and medical gowns and drapes. The porous fibrous sheets may contain nanofibers and wood pulp.
Claims6
A porous fibrous sheet comprising at least two outer layers of wet-laid wood pulp and an inner layer of a fibrillated nanofiber/wood pulp blend sandwiched between the two outer layers, wherein the blend comprises between about 1 weight percent and 99 weight percent fibrillated nanofibers and between about 99 and 1 weight percent wood pulp, based on the total combined weight of fibrillated nanofibers and wood pulp in the blend.
Dependencies are inferred from the claim text.