Abstract:
Compositions especially suitable for forming fibers and films having good elasticity and relatively high modulus are disclosed. Surprisingly, compositions including a styrenic block copolymer having a relatively high melt flow rate, and a detackifier, and optionally, but preferably in some embodiments a polyolefin (co)polymer, and/or polystyrene polymer, and/or a softener have good draw down performance and are processable into fibers having low tack,relatively high modulus and tensile strength. The fibers produced from the composition can be processed easily and are useful to manufacture articles such as fabrics, both woven and non-woven, webs, threads, and yarns. In various embodiments, unique fiber structures are produced having low tack and desirable elasticity.
Abstract:
The method for drawing a fiber with a textured surface comprises the following steps: - forming of a preform from which the fiber is to be drawn with a textured surface; - addition of an outer layer to the textured preform to preserve the shape of the texture of the preform surface during the drawing operation; - drawing of a fiber from the preform, whereby the fiber keeps the formed texture of the preform surface and - removing the additional outer layer to leave the original surface textured fiber exposed. The obtained fiber can be used as a mold to form a textured hollow channel in another material, as a surface coating and as a pressure detector.
Abstract:
A method for making a fiber reinforcement with variations in transverse cross section is disclosed. The method includes forming a fiber comprising polymeric material and exposing the fiber to a heat treatment, such that at least a portion of the polymeric material at or near said surface of said fiber is at or above the melting point temperature and substantially all of the polymeric material at or near the core is below the melting point temperature. The method further includes cooling the fiber to a temperature below the melting point temperature.
Abstract:
In one aspect, the invention provides injectable compositions that comprise a suitable hydrophilic polymer (e.g., a suitable polysaccharide) and water, as well as other optional components. In various embodiments, the composition may be provided in a suitable container, for example, in a pre-loaded syringe. In another aspect, methods of performing medical procedures in a tract of a body are provided. In yet another aspect, the invention provides systems for performing medical procedures in a tract of a body.
Abstract:
Synthetic multifilament fiber for turfs comprising a polymeric support fiber and one or more optical fibers, the support fiber has a flattened cross section defining two side edges, and the optical fiber or fibers are attached to the support fiber along one or both side edges of said support fiber. Grass tuft comprising a support layer, a light conductive layer, one or more light emitters, and one or more synthetic multifilament fibers, wherein the synthetic multifilament fibers pass through the support layer, wherein the conductive layer is applied to the bottom face of the support layer and adhered to the surface of the multifilament fibers, and wherein the one or more emitters are optically coupled to the light conductive layer so that light emitted by the light emitters is conducted to the optical fibers of the multifilament fibers. Turf or turf module comprising a plurality of grass tufts.
Abstract:
An artificial turf filament comprising an ethylene-based polymer, wherein the ethylene-based polymer comprises greater than 50 wt.% of the units derived from ethylene and less than 30 wt.% of the units derived from one or more alpha-olefin comonomers.
Abstract:
Disclosed are fibers comprising identification fibers which can be used for tracking and tracing fibers, yarns, fiber bands, and/or articles comprising the fibers through at least part of the supply chain. Each identification fiber exhibits at least one distinct feature. Each group of distinguishable identification fibers can exhibit a taggant cross-section shape, a taggant cross-section size, or combination of the same taggant cross-section shape and same taggant cross-section size. The distinct features and the number of fibers in each group of distinguishable identification fibers can represent at least one supply chain component of the fibers. The distinct features can be detectable in an article comprising the fibers.