Abstract: The present invention provides a process for producing a ballistic-resistant curved molded article said process comprising pressing in a mold a stack comprising a plurality of layers of unidirectionally aligned polyolefin fibers substantially absent a bonding matrix and a plurality of layers of adhesive; characterized in that a means for dispersing pressure is employed against at least one surface of the stack. Also provided are a ballistic-resistant curved molded article and a press-pad having substantially the shape of a curved mold.

Abstract: The present invention relates to a polyolefin fiber comprising polymeric structures, wherein the polymeric structures individually comprise a polycondensate and a functionalized polymer, and the polyolefin fiber is a gel-spun high-performance polyethylene fiber that has a tenacity of at least 1 N/tex. The polymeric structures are immiscible with and dispersed in the polyethylene fiber. The gel-spun high-performance polyethylene fiber is a gel-spun ultrahigh molecular weight polyethylene fiber.

Abstract: The present invention further relates a sublimation printing process of a multilayer system comprising a polyester top layer and at least one heat sensitive polymer layer whereby a temperature gradient is applied during sublimation printing such that the heat sensitive polymer layer is maintained at a temperature below its melting temperature and the polyester top layer is maintained at a temperature above its glass transition temperature to allow diffusion of a sublimation dye into the polyester top layer. The temperature gradient is maintained by using a heat sink element beneath the heat sensitive polymer layer. The temperature gradient can also be maintained by cooling the heat sink element. The cooling preferably occurs with a circulating coolant. The heat sink element comprises a polymer, a ceramic or a metal. The invention further relates to a sublimation printed multilayer system comprising a polyester top layer and at least one heat sensitive polymer layer.

Abstract: In various embodiments, an improved flexible-composite material is described that comprises at least one scrim constructed from at least two unidirectional tape layers bonded together and at least one woven fabric, non-woven fabric, or membrane bonded to the scrim. In various embodiments, the unidirectional tape layers comprise a plurality of parallel fiber bundles comprising monofilaments within an adhesive resin. In various embodiments, the fiber bundles are separated by gaps that can be filled in by adhesive or non-adhesive resin.

Abstract: The invention relates to a net, preferably a net for aquaculture, wherein the net comprises cords joined in a net mesh, wherein each cord comprises one or more yarns, the yarns having a tenacity of at least 0.6 N/tex and wherein the net has a mesh size of at least 8 mm, characterized in that the cords further comprise a polymeric resin, wherein the polymeric resin is a homopolymer or copolymer of ethylene and/or propylene, wherein the polymeric resin has a density as measured according to ISO1183 in the range from 860 to 970 kg/m3, a melting temperature in the range from 40 to 140° C. and a heat of fusion of at least 5 J/g. The invention further relates to a fishing net, a fish farming construction comprising said net, a fish farm, and a method for fish farming.

Abstract: In various embodiments, an improved flexible-composite material is described that comprises at least one scrim constructed from at least two unidirectional tape layers bonded together and at least one woven fabric, non-woven fabric, or membrane bonded to the scrim. In various embodiments, the unidirectional tape layers comprise a plurality of parallel fiber bundles comprising monofilaments within an adhesive resin. In various embodiments, the fiber bundles are separated by gaps that can be filled in by adhesive or non-adhesive resin.

Abstract: A chain link having a strip which includes warp yarns and weft yarns is provided, with the warp yarns containing a warp yarn A and a warp yarn B, with the minimum creep rate of warp yarn B being higher than the minimum creep rate of warp yarn A, wherein the strip comprises a longitudinal core section and at least two longitudinal edge sections, and wherein the concentration of warp yarn A in the core section is higher than the concentration of yarn A in the edge sections of the strip and the concentration of warp yarn B in the edge sections is higher than the concentration of warp yarn B in the core section of the strip. The invention also relates to a chain comprising said chain link and to use of said chain in different applications.

Abstract: Multifilament yarn containing n filaments are provided, wherein the filaments are obtained by spinning an ultra-high molecular weight polyethylene (UHMWPE), said yarn having a tenacity (Ten) as expressed in cN/dtex of Ten(cN/dtex)=f×n?0.05×dpf?0.15, wherein Ten is at least 39 cN/dtex, n is at least 25, f is a factor of at least 58 and dpf is the dtex per filament.

Abstract: The invention relates to a woven fabric comprising a weft yarn, an outer layer with warp yarn A and an inner outer layer with warp yarn B, wherein the weft yarn comprises a combination of individual yarns comprising UHMWPE yarns and individual natural yarns, the warp yarn A comprises at least 50 wt % of a natural fiber, and warp yarn B comprises a combination of individual UHMWPE yarns and individual natural yarns, and said outside and inside layer being at least partially interconnected by the weft yarn. The invention also relates to products comprising said woven fabric such as clothing, lining, sport apparel, and gloves.

Abstract: A chain includes a plurality of interconnected chain links, wherein at least one of the chain links comprises a Turk's head braided core having at least two consecutive turns of at least one primary strand. The at least one primary strand includes polymeric elongated elements having a tenacity of at least 1.0 N/tex.

Abstract: Processes for making high-performance polyethylene multi-filament yarn are disclosed which include the steps of a) making a solution of ultra-high molar mass polyethylene in a solvent; b) spinning of the solution through a spinplate containing at least 5 spinholes into an air-gap to form fluid filaments, while applying a draw ratio DRfluid; c) cooling the fluid filaments to form solvent-containing gel filaments; d) removing at least partly the solvent from the filaments; and e) drawing the filaments in at least one step before, during and/or after said solvent removing, while applying a draw ratio DRsolid of at least 4, wherein in step b) each spinhole comprises a contraction zone of specific dimension and a downstream zone of diameter Dn and length Dn with Ln/Dn of from 0 to at most 25, to result in a draw ratio DRfluid=DRsp*DRag of at least 150, wherein DRsp is the draw ratio in the spinholes and DRag is the draw ratio in the air-gap, with DRsp being greater than 1 and DRag at least 1.

Abstract: The invention relates to a composite sheet, and a ballistic resistant article, comprising unidirectionally aligned high performance polyethylene (HPPE) fibers and a polymeric resin, wherein said polymeric resin comprises a homopolymer or copolymer of ethylene and wherein said polymeric resin has a density as measured according to ISO1183 of between 930 and 980 kg/m3, and a peak melting temperature of from 115 to 140° C.; and said polymeric resin is present in an amount of from 5 to 25% by weight based on the total weight of the composite sheet. It further relates to a method for manufacturing a composite sheet comprising assembling HPPE fibers to a sheet, applying an aqueous suspension of a polymeric resin to the HPPE fibers, partially drying the aqueous suspension, optionally applying a temperature and/or a pressure treatment to the composite sheet.