A method of treating silicon carbide fibers comprises phosphating heat treatment in a reactive gas so as to form a coating around each fiber for protection against oxidation. The coating comprises a surface layer of silicon pyrophosphate crystals and at least one underlying bilayer system comprising a layer of a phosphosilicate glass and a layer of microporous carbon.

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.

An object is to provide a cloth containing an organic fiber, which is excellent in the oil repellency, dirt-removal property by washing and water-absorbing property, and a textile product produced using the cloth. A means for solution is attaching a specific fluorine-containing polymer to a cloth containing an organic fiber, with a quaternary ammonium salt if desired, and thus making the water-absorbing property in accordance with JIS L1018A method (the instillation method) 60 seconds or less and the oil repellency in accordance with AATCC118-1992 grade 4 or higher.

Microscale and nanoscale tubular structures are provided including rheological fluids in their interior volume and including at least one electroactive component. Multiple tubular structures are provided, including simple hollow tube structures; core/shell structures, wherein the tube includes a tubular outer shell with a core extending axially therein; concentric tube or coaxial tube structures, wherein the tube includes a tubular outer shell and one or more concentric tubes extending axially therein; and core/concentric tube structures, wherein concentric tubes further include a core extending axially therein, thus having a core and two or more tubes surrounding the core. The tubular structures are formed by electrospinning and special spinnerets are provided. The tubular structures form fabrics for beneficial uses.

Processes for preparing ultra-high molecular weight polyethylene (“UHMW PE”) filaments and multi-filament yarns, and the yarns and articles produced therefrom. Each process produces UHMW PE yarns having tenacities of 45 g/denier to 60 g/denier or more at commercially viable throughput rates.

A composite structure is provided that includes a polymer layer and an auxetic material layer disposed within or partially within the polymer layer. The auxetic material layer provides increased conductivity and elastomeric reinforcement to the polymer layer.

A sheet is produced by (i) producing a sheet by entangling woven or knitted material including a thread composed of a composite fiber such that two kinds or more of polyethylene terephthalate polymers different in intrinsic viscosity are stuck together in a side-by-side type along the fiber length direction and/or of a core-in-sheath type composite fiber such that two kinds or more of polyethylene terephthalate polymers different in intrinsic viscosity form an eccentric core-in-sheath structure, with a fiber capable of converting into ultra fine fibers composed of two kinds or more of polymeric substances different in solubility in solvent, (ii) developing an ultra fine fiber with an average single fiber fineness of 0.001 dtex or more and 0.5 dtex or less by treating the sheet with a solvent to thereafter provide elastomer having polyurethane as a main component by impregnating and solidifying solvent solution of elastomer having polyurethane as a main component into the sheet, or of providing elastomer having polyurethane as a main component by impregnating and solidifying solvent solution of elastomer having polyurethane as a main component into the sheet to thereafter develop an ultra fine fiber with an average single fiber fineness of 0.001 dtex or more and 0.5 dtex or less by treating the sheet with a solvent, and (iii) rubbing and shrinking the woven or knitted material under the condition of 110° C. or more.

A technical problem to be solved by the present invention is to provide a non-coated fabric for airbags and a coated fabric for airbags that are both less likely to have yarn slippage after being sewn, and that can be compactly stored; and airbags using these fabrics. The fabric for airbags according to the present invention is a non-coated fabric for airbags or a coated fabric for airbags that both have a crimp ratio of 12% or more in the warp direction, and a crimp ratio of 61 or less in the weft direction.

Cut-resistant and abrasion-resistant yarns including blends of technical fibers and mineral, inorganic, or ceramic fibers of substantially the same length as the technical fibers, and methods for manufacturing yarns, are disclosed.

Cut-resistant and abrasion-resistant yarns including blends of technical fibers and mineral, inorganic, or ceramic fibers of substantially the same length as the technical fibers, and methods for manufacturing yarns, are disclosed.