B32B2437/04

Medical protective clothing materials

Protective clothing materials and related methods and garments are provided. In some embodiments, a protective clothing material may comprise a fibrous layer that serves as a barrier to certain fluids (e.g., bodily fluids, water) and microbes. The impermeability of the fibrous layer may be due, at least in part, to the structural uniformity and/or relatively small pore size of the fibrous layer. In some embodiments, the fibrous layer may have a relatively high air permeability that imparts beneficial properties (e.g., relatively high air flow, breathability) to the protective clothing material without adversely affecting its protection rating. In certain embodiments, the protective clothing material may also comprise one or more coarse nonwoven webs that impart beneficial properties (e.g., splash resistance) to the protective clothing material. The protective clothing materials, described herein, may be particularly useful for a wide variety of applications, including the formation of AAMI level 4 protective garments.

Multi-threat protection composite
11707100 · 2023-07-25 · ·

A multi-threat protection composite containing at least 15 textile layers having an upper and lower surface and a non-blocking pressure sensitive adhesive (NonB-PSA) composition on at least the upper surface of each textile layer. The NonB-PSA coating contains a pressure sensitive adhesive and a plurality of first inorganic particles, wherein the ratio by weight of the first inorganic particles to the pressure sensitive adhesive is greater than about 1.2 and wherein the NonB-PSA coating is in an amount of at least about 10 g/m.sup.2 on each surface the NonB-PSA coating is located. The first inorganic particles have a median primary particle size of less than about 5 micrometers.

Moisture-Curable Polyurethane Hot Melt Adhesive Composition with Oleic Chemical Resistance
20230025328 · 2023-01-26 ·

A moisture-curable polyurethane hot melt adhesive composition having good oleic acid resistance, especially when exposed to 100% pure oleic acid under aging condition of 65° C. and 90% relative humidity, wherein the adhesive composition comprises, consists essentially of or consists of a moisture-curable polyurethane prepolymer, the prepolymer being a reaction product of at least one amorphous polyester polyol containing an aromatic group and at least one polyisocyanate, preferably at least one polyisocyanate containing an aromatic group, wherein the aromatic group is comprised in the polyurethane prepolymer in a content of no less than 23 wt. %, preferably no less than 25 wt. %, more preferably no less than 30 wt. %.

Lens for protective gear
11703620 · 2023-07-18 · ·

A lens for protective gear has first and second polymer layers with a glass layer therebetween. The glass layer is fused to the first and second polymer layers and encapsulated by the first and second polymer layers with the glass layer in compression. The lens may have a coating that provides the lens with (i) less than about 5 percent transmittance for light having wavelengths of less than 400 nm and greater than about 700 nm for an entire horizontal field of view of the lens, (ii) greater than 75 percent transmittance of light having wavelengths of between about 400 nm and about 700 nm for the entire horizontal field of view of the lens with less than about 5 percent transmittance of light having wavelength between about 530 nm and about 580 nm for a horizontal field of view of the lens of not greater than 60 degrees.

COMPOSITION WITH TUNABLE ENERGY ABSORBING PROPERTIES

The present disclosure provides a cellular foam composition, a method for producing and using the same. One particular aspect of the disclosure provides a cellular foam composition comprising a plurality of foam layers, where each foam layer is made from a hollow microstructure material. In particular, the density of the hollow microstructure material in each foam layer is different from the density of the hollow microstructure material that forms the adjacent foam layer. In some embodiments, cellular foam compositions of the disclosure further include an interfacial layer comprising interfacial voids in between adjacent layers.

Footwear Upper
20220400807 · 2022-12-22 ·

Textile composites for garments including footwear uppers and footwear comprising the same that provide protection from flame and liquid water whilst at the same time being lightweight and flexible for the wearer. The textile composite comprises a microfiber outer layer; a nonwoven layer, and in some embodiments a porous polymeric membrane on a support layer.

PHOTOCHROMIC HELMET VISOR
20220400805 · 2022-12-22 ·

The photochromic helmet visor includes a transparent piece, an adhesive layer attached to the transparent piece, a flexible base layer attached to the adhesive layer, a self-repairing layer attached to the flexible base layer, and a number of photochromic elements integrated with the flexible base layer or the self-repairing layer. The self-repairing layer includes a. PU layer and a. Siloxane layer attached to the PU layer. The photochromic elements are integrated with the flexible base layer or the self-repairing layer. The flexible base layer is made of PU, TPU, PVC, or PET, and may be tightly and smoothly joined to the transparent piece along with the adhesive layer. The self-repairing layer allows self-repairing to scratches or abrasions under a high temperature, thereby preventing the malfunction of the photochromic elements out of wear and usage and the resulted constant replacement, and enhancing the visor's durability.

MANUFACTURED NATURAL SHEARLING MATERIAL
20220396902 · 2022-12-15 · ·

A manufactured shearling material comprises a leather layer and a knitted wool layer laminated together. The leather layer may be made by grinding up waste/scrap leather and adhering it to a backing, and giving texture (or texturizing) a surface to give the surface a particular feel (e.g., a suede feel). The scrap leather may be from various animals, including cows, sheep, etc. The knitted wool layer may comprise recycled wool clippings organized together to simulate the fur surface of natural shearling, and the wool clippings may be combined with one or more additional materials (e.g., fur, cotton, polyester, Tencel, silk, etc.) at various blends (e.g., 80/20 blend of wool and Tencel) to control the feel, aesthetics, and/or functionality, etc. of the knitted wool layer. Furs, hair, or other materials other may be utilized instead of the recycled wool clippings. An additional layer may be provided on top of the leather, with such additional layer being a synthetic recycled fabric.

ENHANCED HAIR COVERING
20220386752 · 2022-12-08 ·

Devices, systems, and apparatuses are provided for enhanced hair covering. An enhanced covering device may comprise a first outer layer made of a first material type. The enhanced covering device may comprise a second in her layer disposed inside the first layer, wherein the second layer is made of a second material type. The enhanced covering device may comprise an elastic band situated on an interior of the hair covering device at a first edge, wherein the elastic band permits air out of the hair covering device while preventing air from flowing back into the interior of the hair covering device.

Elastic membrane

The invention relates to an elastic membrane comprising an elastomer having an elongation at break of greater than 150% measured according to DIN 53504, wherein the thermoplastic elastomer (P1) comprises a polyurethane elastomer based on the following components: 11 % to 79% by weight of a mixture of at least one diol (D1) and at least one isocyanate (I1), 21% to 89% by weight of at least one compound (C1) having at least two isocyanate-reactive groups.