The method for producing a polyimide fiber includes a coagulation step of forming a polyimide precursor fiber by extruding a polyimide precursor solution containing a polyimide precursor and a compound having an acid dissociation constant (pKa) of a conjugate acid in water at 25° C. of 6.0 to 10 inclusive and an octanol-water partition coefficient (Log P) at 25° C. of −0.75 to 0.75 inclusive into a poor solvent or nonsolvent for the polyimide precursor; and a heat drawing step of forming the polyimide fiber by drawing the polyimide precursor fiber while heating same. The polyimide fiber of the present disclosure has a physical property such that the coefficient of thermal expansion thereof is in the range of −15 ppm/K to 0 ppm/K inclusive.

The present invention relates to a coated fabric for an air bag obtained by applying an elastomer resin onto at least one side of a woven fabric made from synthetic fiber. The applied amount of the elastomer resin is 25 to 60 g/m.sup.2. The average resin thickness on warp and weft at head top of the woven fabric surface is 8 μm to 45 μm. The number of foams having diameter of 30 μm or larger is 100 or more/cm.sup.2 on the surface of a resin layer.

There are provided a core material for vacuum insulator comprising an organic synthetic fiber, and at least one organic synthetic fiber bonded portion; and a preparation method therefor. In addition, provided is a vacuum insulator comprising the core material for vacuum insulator comprising the organic synthetic fiber, and the at least one organic synthetic fiber bonded portion.

A warp knitted mesh fabric constructed of synthetic, or synthetic and natural, fibers is characterized by having a low density, open construction with a high profile for spacing a garment constructed from the fabric from the skin of a wearer of the garment.

A nonwoven fabric and a method of making thereof. The nonwoven fabric includes a plurality of randomly-oriented fibers, the plurality of randomly-oriented fibers including: at least 60 wt % of oxidized polyacrylonitrile fibers; and from to less than 40 wt % of reinforcing fibers having an outer surface comprised of a (co)polymer with a melting temperature of from 100° C. to 450° C.; and a fluoropolymer binder on the plurality of randomly-oriented fibers; wherein the plurality of randomly-oriented fibers is bonded together to form the nonwoven fabric, optionally wherein the nonwoven fabric has a thickness of one millimeter or less.

Disclosed herein are composite materials suitable for use in wearable technology and other similar applications. The composite includes a fabric (12, 20, 30, 40) and a wire (11, 22, 32, 41, 1100, 1210) hidden within the fabric (12, 20, 30, 40) in such a way that the fabric (12, 20, 30, 40) protects the wire (11, 22, 32, 41, 1100, 1210) from mechanical stresses. In addition, the wire (11, 22, 32, 41, 1100, 1210) may comprise a yarn material that has a core of an elastic polymeric material surrounded by a wire. Processes to make these materials are also disclosed herein.

An exemplary elongated elevator load bearing member includes a plurality of tension elements that extend along a length of the load bearing member. A plurality of weave fibers transverse to the tension elements are woven with the tension elements such that the weave fibers maintain a desired spacing and alignment of the tension elements relative to each other. The weave fibers at least partially cover the tension elements. The weave fibers are exposed and establish an exterior, traction surface of the load bearing member.

An assembly is described for chairs, armchairs, sofas and the like, comprising a knitted artefact (1) and sliders (12). The artefact (1) comprises a multilayer and two ends (11) of tubular shape for fixing the multilayer, wherein the multilayer comprises a knitted fabric front layer (2) and a knitted fabric rear layer (3) fixed to sliders (12) of the artefact (1) at said two ends (11). The artefact (1) further comprises heat-shrinking yarns (5) associated with the multilayer, wherein the heat-shrinking yarns (5) are fixed with a series of connection points (7) spaced apart to the sliders (12) so as to develop in weft between the two ends (11) of the artefact (1).

A double-faced fabric of knitted construction has a first layer and a second layer. The first layer forms a first out-ward-facing surface of the fabric, which includes a first yarn that includes first inherently fire-resistant fibers and optionally first elastane fibers. The second layer forms a second outward-facing surface of the fabric, which includes a second yarn that includes second FR viscose fibers and optionally second elastane fibers, other cellulosic-derived fiber, synthetic fire-resistant fiber, antibacterial fiber or combination of such. The first layer and the second layer are attached to each other by interlocking relationship between the first yarn and the second yarn. The first outward-facing surface and the second outward-facing surface of the fabric may used for a garment's outer surface and the inner surface, respectively.

A thermal runaway barrier for at least significantly slowing down a thermal runaway event within a battery assembly. The thermal runaway barrier includes a layer of a nonwoven fibrous thermal insulation comprising a fiber matrix of inorganic fibers, thermally insulative inorganic particles of irreversibly or permanently expanded expandable inorganic material dispersed within the fiber matrix, and a binder dispersed within the fiber matrix so as to hold together the fiber matrix. An optional organic encapsulation layer may also be used to encapsulate the nonwoven fibrous thermal insulation.