Abstract: Filtration articles and filter elements comprising reversibly stretchable layer filter media are generally provided. The filtration articles and filter elements described herein may be used for various applications, including applications as a respirator or respiratory protective equipment, a medical filter, an indoor air filtration article for HVAC and HEPA applications, a cabin air filter for vehicles, a room air purifier filter, a vacuum cleaner filter, a heavy duty air filter, a hydraulic fluid filter, and a process liquid filtration filter.

Abstract: Absorbent composites are provided that include a nonwoven top layer having hydrophilic fibers and an absorbent core layer directly or indirectly attached to the nonwoven top layer, wherein the absorbent core layer comprises a through-air-bonded nonwoven. The absorbent composites may include a combination of (i) a composite-run-off value of less than 50% as determined by ISO 9073-11, (ii) a composite-absorption capacity of at least 600% as determined by ISO 9073, and (iii) a composite-rate of absorption of less than 10 seconds for a 5 ml liquid sample as determined by D824-94. The absorbent composites may include an optional film layer attached to the absorbent core layer.

Abstract: Breathable multilayer films are provided. The multilayer films may include a monolithic core layer comprising a core-layer composition, which includes a core-layer highly breathable polymer and has a core-layer water absorption rate, and at least a first skin layer comprising a first-skin-layer composition, which includes a first-skin-layer highly breathable polymer and has a first-skin-layer water absorption rate. The core-layer water absorption rate may be at least about 10 times larger than first-skin-layer water absorption rate. Laminates including the multilayer films and at least one fibrous layer are also provided.

Abstract: Drainage promoting fabrics having commercial applications (e.g., housewrap) are provided. The drainage promoting fabric, according to certain embodiments of the invention, includes a weather resistive barrier having an outer surface, and a three-dimensional, non-uniform or non-continuous meltblown layer positioned on the outer surface of the weather resistive barrier. The meltblown layer may comprise meltblown shot, meltblown ropes, or both.

Abstract: Drainage promoting fabrics having commercial applications (e.g., housewrap) are provided. The drainage promoting fabric, according to certain embodiments of the invention, includes a weather resistive barrier having an outer surface, and a three-dimensional, non-uniform or non-continuous meltblown layer positioned on the outer surface of the weather resistive barrier. The meltblown layer may comprise meltblown shot, meltblown ropes, or both.