A filter assembly includes a filter pad comprising flame resistant viscose. The filter assembly also includes a bonding emulsion. The bonding emulsion may comprise casein resin. The bonding emulsion may additionally comprise acrylic resin. The filter assembly also includes a structural support. In particular embodiments, at least a portion of the fibers are treated with a solution that is fire resistant or fire retardant.

The present invention relates to a pre-filter for removal of cesium and a method of manufacturing the same. The pre-filter for removal of cesium includes ultra-high-molecular-weight polyethylene and a cesium adsorbent, and is manufactured in which the ultra-high-molecular-weight polyethylene and the cesium adsorbent are mixed, heated, and molded or the ultra-high-molecular-weight polyethylene and the cesium adsorbent are mixed, molded, and heated. The pre-filter manufactured thereby removes cesium excellently and has excellent impact resistance, abrasion resistance, slipperiness, and chemical resistance.

A filter assembly includes a filter pad comprising flame resistant viscose. The filter assembly also includes a bonding emulsion. The bonding emulsion may comprise casein resin. The bonding emulsion may additionally comprise acrylic resin. The filter assembly also includes a structural support. In particular embodiments, at least a portion of the fibers are treated with a solution that is fire resistant or fire retardant.

An improved catalytic filter material for use in removing target species found in a fluid stream is provided. The filter material includes water wettable, high temperature staple fibers in the form of porous substrates that are attached to a high temperature fluoropolymer woven scrim. The porous substrates have catalyst particles adhered (e.g., tethered) to the surfaces thereof by a polymer adhesive. Optionally, at least one microporous layer is positioned adjacent to or within the filter material.

Depth filtration media for the harvest clarification of a feed stream from cell cultures containing a therapeutic biomol-ecule. The depth filtration media is comprised of a sintered mixture of a polymeric adsorbent and a thermoplastic binder and possess ultra-low extractables and do not require pre-flushing prior to use. Further, the materials of construction used for the sintered depth filter media demonstrate a high stability to gamma radiation and are compatible with gamma-based pre-use sterilization processes.

A filter assembly includes a filter pad comprising fibers including natural, synthetic and/or hybrid fibers. In particular embodiments, the filter pad comprises wool fibers. The filter assembly also includes a bonding emulsion, wherein the bonding emulsion comprises casein resin. The filter assembly also includes a structural support. In particular embodiments, at least a portion of the fibers are treated with a solution that is fire resistant or fire retardant.