Nonwoven barrier and method of making the same
AssigneeKimberly-Clark Worldwide, Inc.
InventorBernard Cohen
Life of this patent
Estimating the term…
Abstract
A ethylene oxide sterilizable nonwoven material which is subjected to charging, and more particularly electrostatic charging is provided. The nonwoven materials may include laminate nonwovens wherein one or more layers are subjected to charging. The nonwoven material(s) may also be treated with an antistatic material before or after subjecting the same to charging.
Claims19
An ethylene oxide sterilized web wherein at least one portion of the web has been subjected to electrostatic charging.
An ethylene oxide sterilized nonwoven web laminate comprising:
- two outer layers separated by an intermediate layer, wherein the two outer layers are spunbond nonwoven layers and the intermediate layer is a meltblown layer;
- and
- at least one of the layers is subjected to electrostatic charging.
A charged web having a Nelson bacterial filtration efficiency of at least 96%.
A web prepared by a process comprising sterilizing a charged web by ethylene oxide sterilization.
Dependencies are inferred from the claim text.