Battery separators comprising a non-woven web including one or more chemical additives are provided. The chemical additives may impart beneficial properties, such as enhanced separator stability and/or battery performance. In some embodiments, the chemical additive(s) may confer resistance to oxidation, heavy met...

Filter media which may be used in ASHRAE applications are described. The media include a fiber web and has desirable performance characteristics.

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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 duri...

Filter media, as well as related assemblies, systems and methods. Filter media may contain one or more layers formed of a meltblown material.

Multi-phase filter media, as well as related articles, components, filter elements, and methods, are disclosed.

Various high performance, high efficiency filter media are provided that are cost effective and easy to manufacture. In particular, various filter media are provided having at least one layer with, a waved configuration that results in an increased surface area, thereby enhancing various properties of the filter med...

In some embodiments, a battery separator described herein may comprise a layer having a relatively low apparent density; for example, the density that includes any unoccupied space within the outermost boundaries of the layer may be relatively low. The low apparent density may be attributed to, at least in part, ...

Battery separators comprising ribs are generally described. In some embodiments, the ribs have one or more features that enhance the performance of the battery separator.