A novel modified treated porous polyethylene membrane is imbibed with a hydrophilic polymer and heat treated to form a film having improved hand and noise. The films are useful to produce articles, especially textile laminates that can form waterproof breathable apparel.

Provided is a PSA sheet capable of suitably preventing bubble formation caused by outgassing. This invention provides a PSA sheet comprising a PSA layer that forms an adhesive face. In an aging test where the adhesive face is press-bonded to a glass plate and stored at 50° C. for 24 hours, the PSA sheet has at least 5% post-aging non-bonding area Sa, with Sa defined as the ratio of all areas non-bonding to the glass plate relative to the total area of the adhesive face. The non-bonding areas have parts linearly extending along the adhesive face.

Composite materials incorporated with shear thickening fluids (STF) are disclosed. The STF-composites are light weight and include high tenacity textiles that dissipate/absorb energy from impact forces and exhibit damage resistance and self-healing functionality. Also disclosed are articles comprising STF-composite materials, such as safety suits and extra-vehicular mobility units, which include STF-intercalated textiles and composites. Methods for Manufacturing STF-composites are also disclosed.

A composite material includes an upper layer, a lower layer and means arranged so as to diffuse substantially transversely at least part of the kinetic energy induced by an impact on one of said layers, said means cooperating on both sides, with the upper layer and the lower layer. The diffusion means can consist in a network of interassembled base elements and of cavities, forming a three-dimensional structure. A protection device comprising includes an insert consisting of the composite material.

An impact attenuation system comprises an aluminum honeycomb sheet having a top surface and a bottom surface. The aluminum honeycomb sheet defines a plurality of approximately hexagonally shaped cells. The bottom surface defines a single sheet of contiguous cells and the top surface defines two or more islands of contiguous cells separated by one or more slits. At least a portion of one or both of the top surface and bottom surface may be covered by a polymer skin. The polymer skin may comprise carbon fibers and/or fiberglass.

An impact energy dissipating fabric system includes a strike-face layer formed using a Z-axis flock fiber reinforced Organic Polymer Laminar Composite (OPLC), an energy absorbing core media layer attached adjacent the strike-face layer and formed using Foam Impregnated Flocked (FIF) layers and an Against The Body (ATB) Layers including Flocked Energy Absorbing Material (FEAM) attached adjacent to the energy absorbing core media layer and the layers are disposed on one another and coupled together with an adhesive, sewing or quilting.

A multicomponent structure includes a substrate having a plurality of fiber-like reinforcement materials embedded in a matrix material. The reinforcement materials have a rectangular cross-section defined in part by the matrix material and extend a length of the multicomponent structure. In one embodiment, the multicomponent structure includes at least one recyclate.

A substrate having discrete copper laminae for positioning proximate an odour causing area of a user's body. The lamina are spaced apart to provide channels between adjacent laminae and the substrate. The high density of the laminae and channels cooperate to control odour. Several embodiments are disclosed for use in a variety of clothing and footwear articles.

A shock wave attenuating material (100) includes a substrate layer (104). A plurality (110) of shock attenuating layers is disposed on the substrate layer (104). Each of the plurality (110) of shock attenuating layers includes a gradient nanoparticle layer (114) including a plurality of nanoparticles (120) of different diameters that are arranged in a gradient from smallest diameter to largest diameter and a graphitic layer (118) disposed adjacent to the gradient nanoparticle layer. The graphitic layer (118) includes a plurality of carbon allotrope members (128) suspended in a matrix (124).

A light reflecting headgear assembly includes an article of headgear that is wearable on a user's head. The article of headgear is comprised of a rigid material to protect the user's head from impact. A substrate is coupled on the article of headgear and a plurality of beads is each partially embedded into the substrate. Each of the beads is comprised of a translucent material to pass light therethrough. Each of the beads is partially embedded into the substrate to reflect light for enhancing visibility of the article of headgear in a darkened environment. A covering layer is positioned over the plurality beads and the covering layer is comprised of a translucent material to pass light therethrough.