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.

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.

The invention relates to a respirator mask comprising a filter material piece made of an air-permeable material and at least one securing band, wherein the air-permeable material comprises at least one layer of a non-woven fabric and the at least one securing band is designed to secure the respirator mask to the head, wherein the air-permeable material and the at least one securing band are made of the same plastic material.

In a method for producing a fiber-reinforced resin molded body (10) by heat-compressing fiber substrates (11A to 11D) together with a thermosetting resin (15) so that the thermosetting resin (15) is impregnated into the fiber substrates (11A to 11D) and cured, a thermosetting resin powder (15A) is disposed in contact with at least one surface of the fiber substrates (11A to 11D), the fiber substrates (11A to 11D) are heat-compressed together with the thermosetting resin powder (15A) by a mold (30) so that the thermosetting resin powder (15A) is melted, impregnated into the fiber substrates (11A to 11D), and cured. Also disclosed is a fiber-reinforced resin molded body as well as a vehicle or airframe including a fiber-reinforced resin molded body.

The present invention describes various methods for manufacturing gel composite sheets using segmented fiber or foam reinforcements and gel precursors. Additionally, rigid panels manufactured from the resulting gel composites are also described. The gel composites are relatively flexible enough to be wound and when unwound, can be stretched flat and made into rigid panels using adhesives.

The invention relates to an installation and a method for selectively producing a single- or multi-ply nonwoven includes an inclined wire former configured to deposit a sheet of wet-laid fibre material on a first circulating belt, a further belt configured to receive the sheet of wet-laid fibre material from the first circulating belt, a roller card arranged downstream in the material transport direction and configured to introduce a roller card web into the installation, a hydroentanglement arranged downstream in the material transport direction and including at least one water beam configured to entangle, bond and/or structure a single sheet of fibres or a plurality of sheets of fibres, and a dryer arranged downstream in the material transport direction.

Various aspect of the present disclosure relate to a sealed storage tank. The sealed storage tank includes a first film at least partially defining a first internal chamber of the sealed storage tank. The first film includes a first polymeric layer having a thickness in a range of from about 0.05 mm to about 1 mm. The first film can include an optional first fibrous scrim layer directly contacting the first polymeric layer. The sealed storage tank can further include a second film attached to the first film and at least partially defining a second internal chamber of the sealed storage tank, the second film comprising. The second film can further include a second polymeric layer having a thickness in a range of from about 0.05 mm to about 1 mm. The second film can include an optional second fibrous scrim layer directly contacting the second polymeric layer.

Disclosed is a new multi-layer nonwoven interlining and the production process thereof. The process allows a multi-layer nonwoven interlining to be obtained simultaneously with a single process on a single production line. The process includes a fiber opening step, a fiber feeding step, a carding step, a levelling step of the additional layer by the thermal treatment, and a point bonding step of the carded web and additional layer. As a result of the process, a structure is obtained where the carded web is point-bonded onto the additional layer.

A multi-layered composite insulation material includes a first and second outer layers having one or more of para-aramid, meta-aramid, flame-retarded modacrylic, or pre-oxidized polyacrylonitrile fibers; and an inner layer disposed between the first and second outer layers having one or more of polyacrylonitrile fibers or ceramic fibers. The inner and outer layers are bonded via needle punching, thermal bonding, or stitch bonding. The outer layers further include flame-retardant rayon fibers and a woven or knit fabric having continuous high-temperature glass, silica, or ceramic filaments.

An antiviral mask and antiviral filter include a thin breathable, microporous polymeric membrane. That membrane may include a plurality of pores functionalized with a proteolytic enzyme, an antibody or a combination thereof. The antiviral mask and antiviral filter may also include a coating of graphene oxide, lignin sulfonate or a combination thereof and/or a fluorescent virus tagging agent.