Hollingsworth & Vose Company

Henkel IP Holding Gmbh

Henkel US IP Lcc

Richard O Angus, Jr

Zhiping Jiang

John A Wertz

Akshay Ashirgade

Nicolas Clement

Gubbi Krishnappa Natesh

Krishna Marchigowda

John Gregory Woods

Joel D Schall

Sachin Kumar

Mahadevaswamy Kodimole Mahadevappa

Harish Moddegowdru Ramaswamy

Basavaraju Girisha

Kameswara Rao Patchigolla Venkata

Non-woven webs that can be used as battery separators for batteries, such as lead acid batteries, are generally provided. In some embodiments, 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 metal deposition, and/or formation of short circuits during cycling of a battery including the battery separator. The respective characteristics and/or amounts of the chemical additive(s) may be selected to impart desirable properties while having relatively minimal or no adverse effects on another property of the battery separator and/or the battery.

Battery separators comprising chemical additives and/or other components

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, the geometry of the layer. For instance, in some embodiments, the layer may include undulations and/or have at least one non-planar surface (e.g., a corrugated layer; an embossed layer). In some embodiments, a battery comprising a layer having a relatively low apparent density may have desirable properties, including relatively low electrical resistance and/or relatively high capacity. The battery separators described herein may be well suited for a variety of battery types, including lead acid batteries.

Battery separators having a low apparent density

The present invention relates to thiol-ene curing compositions, which cure upon exposure to ultraviolet (UV) light and/or heat. The compositions include components having alkenyl (or 'ene') functionality and components having thiol functionality, which undergo thiol-ene curing. The compositions also include a cure system. More specifically, in some embodiments, the curable compositions include a vinyl polymer bearing alkenyl or thiol terminal functional group(s) and a cross-linking agent having the opposing functionality, i.e., thiol cross-linking agents with alkenyl-terminated vinyl polymers and vinyl cross-linking agents with thiol-terminated vinyl polymers. Also provided are methods of making and using the compositions, such as for sealants for in-place gasketing applications.

Thiol-ene cured oil-resistant polyacrylate sealants for in-place gasketing applications

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Moosup, CT, United States of America

Richard O Angus, Jr