The invention relates to a membrane which contains crosslinked phosphonated pentafluorostyrene. The invention also relates to the use of a membrane or membrane electrodes containing crosslinked phosphonated pentafluorostyrene in an electrochemical cell at a temperature of 0 to 380° C. The invention also describes the use of a membrane or membrane electrodes containing non-crosslinked phosphonated pentafluorostyrene in an electrochemical cell at a temperature of 0 to 380° C. In addition, the invention discloses a nonwoven fabric containing phosphonated polypentafluorostyrene. The invention also relates to the use of the nonwoven fabric in a membrane or in a membrane electrode unit in electrochemical applications at temperatures up to 380° C.

Core-sheath filaments comprising cores including a polymer and 1 wt. % to 10 wt. % of a blowing agent, that can be dispensed as the core in a core-sheath construction. Dispensed adhesive compositions comprising the disclosed core-sheath filaments, the dispensed adhesive composition being a product resulting from compounding the core-sheath filament through a heated extruder nozzle. Methods of preparing core-sheath filaments.

A fiber assembly includes, on a main surface of a support sheet subjected to a release treatment, a warp yarn group in which a plurality of warp yarns including a polymer material are arranged, and a weft yarn group in which a plurality of weft yarns including a polymer material are arranged. The warp yarn group and the weft yarn group form a plurality of first contact portion regions and a plurality of non-contact portion regions. Each of the plurality of first contact portion regions is a region in which at least one of the plurality of warp yarns is integrated with at least one of the plurality of weft yarns. Each of the plurality of warp yarns has a line width of 1 μm to 10 μm, inclusive, and each of the plurality of weft yarns has a line width of 1 μm to 10 μm, inclusive. At least one of the plurality of first contact portion regions has a fiber density higher than that of at least one of the plurality of non-contact portion regions. Two of the plurality of warp yarns or two of the plurality of weft yarns have a spacing of 5 μm or more and 1000 μm or less in at least one of the plurality of first contact portion regions. Two of the plurality of warp yarns or two of the plurality of weft yarns have a spacing of 2000 μm or more in at least one of the plurality of non-contact portion regions.

Disclosed herein are nonwoven fibrous web comprising a population of fibers, wherein the fibers are formed from a composite that comprises: (i) a thermoplastic elastomeric polymer (TPE) component; (ii) a soft elastomeric polymer component that at ambient temperatures is above its glass transition temperature; and (iii) optionally a filler. Also described are methods of making these nonwoven fibrous webs as well as articles made therefrom.

A microconduit network structure and methods for making the same. One aspect of the invention relates to a microconduit network structure, including: a solid or semi-solid matrix having at least one interconnected web of filaments formed within the matrix; and wherein at least one interconnected web of filaments having diameters of about 10 nm to about 1 mm.

Provided is a dental cord using a nanofiber multiple yarn having a large specific surface area and a large number of three-dimensional pores, thereby effectively impregnating a drug such as a hemostatic agent, and a method of manufacturing the dental cord. The dental cord includes: a nanofiber multiple yarn which is obtained by plying and twisting at least two nanofiber tape yarns and which is impregnated with a drug, wherein the at least two nanofiber tape yarns are integrated by nanofibers made of fiber moldability polymer materials and having an average diameter of less than 1 μm, to thus be formed of a nanofiber web having three-dimensional micropores.

A composite filament includes a core particle comprising a sulfonated polyester matrix and a plurality of silver nanoparticles dispersed within the matrix, and a shell polymer disposed about the core particle, and methods of making thereof. Various articles can be manufactured from such composite filaments.

Disclosed is a method for fabricating coils including the steps of providing a liquid droplet having a diameter on length-scales ranging from hundreds of micrometers to nanometers and bringing a fiber into contact with the liquid droplet, wherein the radius of the liquid droplet is sufficiently high in comparison to the bending elastocapillary length which is defined as where E is the Young's modulus of the elastic fiber, r is the radius of the fiber and γ is the interfacial tension between the droplet and surrounding medium, so that capillary forces induce the spontaneous winding of the fiber around the droplet, to fabricate a coil with a diameter in the range from hundreds of micrometers to nanometers. Also disclosed is a system for making microcoils and to the product thereof.

Proposed is a conductive polymer microfiber mesh structure including a plurality of conductive polymer microfibers, in which any one of the conductive polymer microfibers intersects at least one or more other conductive polymer microfibers, and intersections share crystallinity without a specific crosslinking agent and are structurally fused, whereby a mesh structure is formed. According to the conductive polymer microfiber mesh structure, it is possible to provide a conductive polymer microfiber mesh structure that has elasticity, flexibility, and transmittance, is structurally stable, and has excellent electric and electrochemical characteristics, and an electrode for a flexible electronic device using the structure and having improved physical stability and suspension stability.

Provided is a method of manufacturing a dental cord. The method including: producing a spinning solution by dissolving a fiber-moldable hydrophobic polymer material in a solvent; spinning the spinning solution to obtain a polymer nanofiber web composed of nanofibers and including three-dimensional micropores; laminating the polymer nanofiber web to obtain a polymer membrane; slitting the polymer membrane to obtain a nanofiber tape yarn; hydrophilic-treating the nanofiber tape yarn to obtain a hydrophilic-treated nanofiber tape yarn; plying and twisting the hydrophilic-treated nanofiber tape yarn with a covered yarn to obtain a nanofiber multiple yarn; and impregnating the nanofiber multiple yarn with a hemostatic agent.