Multilayer structure for transporting hydrogen, including, from the inside, at least one sealing layer and at least one composite reinforcing layer, an innermost composite reinforcing layer being wound around an outermost adjacent sealing layer, the sealing layers of a composition predominantly of at least one semi-crystalline, long-chain polyamide thermoplastic polymer P1i (i=1 to n, n being the number of sealing layers), the Tf of which, as measured according to ISO 11357-3: 2013, is greater than 160° C., with the exception of one polyether block amide (PEBA), up to 50% by weight of impact modifier relative to the total weight of the composition and up to 1.5% by weight of plasticiser relative to the total weight of the composition, the composition being free of nucleating agent, and at least one of the composite reinforcing layers being of a fibrous material.

An interior material of a vehicle includes: a fabric layer made of a tricoat fabric, a foam layer disposed on a lower surface of the fabric layer, and an antifouling layer disposed at least between an upper surface of the fabric layer or the fabric layer and the foam layer. The tricoat fabric includes a combination of at least one of a polyurethane yarn, a high-elongation polyester yarn, or a polyester yarn.

The present invention has an object of providing a prepreg for producing a laminate suitable as a structural material, and a laminate, which have excellent combustion resistance, compressive strength and interlaminar fractural toughness values, and can be firmly integrated with another structural member by welding. The present invention is a prepreg including structural components: [A] reinforcing fibers, [B] a thermosetting resin, and [C] a thermoplastic resin [C], wherein [B] includes at least one resin selected from a cyanate ester resin having an average cyanate equivalent of 220 or less, a bismaleimide resin having an average maleimide equivalent of 210 or less, and a benzoxazine resin having an average oxazine equivalent of 300 or less, [C] is present on a surface of the prepreg, and the reinforcing fibers [A] are present which are included in a resin area including [B] and a resin area including [C] across an interface between the two resin areas.

Systems and techniques to provide a flexible, lightweight material that is also effective at protecting a body from ballistic threats are described. An example composite material described herein is fiber-based, and it includes one or more first regions where the fiber composite material is consolidated, and one or more second regions where the fiber composite material is unconsolidated. Example methods of manufacturing the composite material disclosed herein include using a specialized tool with a heated platen press or an autoclave. The tool may include one or more protrusions and/or cavities that contact a precursor composite material to transform the precursor material into a partially consolidated fiber composite material, which is suitable for use as body armor, among other potential applications for the manufactured composite material.

A cold protection material includes an outer fabric, an inner fabric, two connecting members bonded to the outer fabric and the inner fabric to form a space between the outer fabric and the inner fabric, and a filler stored in the space. Each of the two connecting members has an outer surface bonded to the outer fabric and an inner surface bonded to the inner fabric, and has air permeability, and each of the two connecting members is formed of a flexible material, and is soft enough not to be deformed to reduce a distance between the outer surface and the inner surface by a weight of the outer fabric or the inner fabric.

The invention relates to a polymeric fabric comprising an outer functional layer having hydrophobic and oleophobic characteristics made of a first compound, and a second functional layer having hydrophobic characteristics made of a second compound, wherein the first and the second compound differ from each other. Further the outer functional layer at least partly coats the second layer. Additionally, the invention relates to a method of producing a polymeric fabric and an apparatus for producing a polymeric fabric.

Described is a composite made from a woven fabric, a non-woven fabric, or a knitted face fabric and a non-woven fabric. The woven fabric, the non-woven fabric, or the knitted face fabric is needle punched such that fibers protrude into the non-woven fabric. The woven fabric, the non-woven fabric, or the knitted face fabric has a first polymer having a first melting point and a second polymer having a second melting point being higher than the first melting point. The nonwoven backing material comprises a third polymer having a third melting point and a fourth polymer having a fourth melting point being higher than the third melting point. The woven fabric, the non-woven fabric, or the knitted face fabric is further bonded to the nonwoven backing material applying heat to at least partially melt or soften the first polymer and the third polymer such that they bond together.

A thickness direction conductive laminated composite material, comprising: laminated multiple layers of carbon fiber; a curable resin which is disposed among the laminated multiple layers of carbon fiber, coats the laminated multiple layers of carbon fiber and bonds the laminated multiple layers of carbon fiber together; and a conductive material, the conductive material comprising at least one of the followings: a conductive fiber woven together with the carbon fiber, an interlayer conductive film, an interlayer conductive Z-pin and an interlayer conductive particle. The carbon fiber accounts for 40 vol % or more of the thickness direction conductive laminated composite material. The thickness direction conductive laminated composite material has higher thickness direction conductivity, planar conductivity and electric energy transmission performance than traditional laminated composite materials.

A sheet material is provided that includes a woven layer having a first side and an opposing second side, the woven layer formed from strand including a polyolefin polymer and a nucleating agent; a first polymeric coating disposed on the first side of the woven layer; and optionally a second polymeric coating disposed on the second side of the woven layer. The sheet material exhibits reduced thermal shrinkage.

The invention is directed to a protective cover for exercise equipment. The cover is of two ply construction and is comprised of an upper layer manufactured from a soft, absorbent fabric material such as terrycloth, and a bottom layer which is manufactured from a water-resistant material such as nylon fabric. The cover is easily secured to the corners of a weightlifting bench or similar surface, with nylon drawstrings, elastic cords, hook-and-loop fasteners, or some similar type of fastener. Preferably, the upper layer is removable for laundering purposes.