This pultrusion material that is a composite material member comprises: a plurality of fiber sheets that extend along a lengthwise direction; and a gap material that is provided to a gap formed by the plurality of fiber sheets, wherein the gap material has a gap fiber sheet including reinforcement fibers that are oriented in a different fiber direction than the lengthwise direction, and has gap reinforcement fibers that are oriented in the same fiber direction as the lengthwise direction. Additionally, the gap reinforcement fibers are provided evenly distributed in a cross-section of the gap material, said cross-section being perpendicular to the lengthwise direction.

A tape-like dry fibrous reinforcement, the ‘Gapped UD reinforcement tape’, providing channels or flow-paths created by inclusion of a layer of separated fiber tows held by at least one adhesive layer. Hereby, quicker wetting of fibers with matrix is obtained, whereby improved composite materials can be economically produced. A method and apparatus for producing the Gapped UD tapes are also disclosed.

A tape-like dry fibrous reinforcement, the ‘Gapped UD reinforcement tape’, providing channels or flow-paths created by inclusion of a layer of separated fiber tows held by at least one adhesive layer. Hereby, quicker wetting of fibers with matrix is obtained, whereby improved composite materials can be economically produced. A method and apparatus for producing the Gapped UD tapes are also disclosed.

Disclosed is a method for producing a profiled semi-finished plastic product from flexible web material, including: providing a plurality of webs of flexible material, —continuously and simultaneously feeding the webs of material to and along a plurality of shaping pieces arranged next to each other, folding each web of material around a respective shaping piece to form a body and an edge strip which projects transversely with respect to the body,—causing the edge strips of different webs of material to at least partly cover each other, impregnating the webs of flexible material provided or the assembly of webs of material with folded-over edge strips covering each other with a hardenable unit, causing the hardenable unit to harden to form the profiled semi-finished plastic product, wherein open spaces remain between two neighbouring bodies and edge strips.

Disclosed is a method for producing a profiled semi-finished plastic product from flexible web material, including: providing a plurality of webs of flexible material, —continuously and simultaneously feeding the webs of material to and along a plurality of shaping pieces arranged next to each other, folding each web of material around a respective shaping piece to form a body and an edge strip which projects transversely with respect to the body,—causing the edge strips of different webs of material to at least partly cover each other, impregnating the webs of flexible material provided or the assembly of webs of material with folded-over edge strips covering each other with a hardenable unit, causing the hardenable unit to harden to form the profiled semi-finished plastic product, wherein open spaces remain between two neighbouring bodies and edge strips.

A structural component has a main body formed of a fibre composite material, a plurality of first reinforcement parts and a plurality of second reinforcement parts, wherein the main body is formed as a domed body having a peripheral edge and a vertex, wherein the first reinforcement parts are connected to the main body and in each case have a concave curvature course in relation to a first plane, and wherein the second reinforcement parts are connected to the main body and also have a concave curvature course in each case in relation to a second plane.

The invention relates to a method for depositing one- or two-dimensional fiber structures in order to form a two- or three-dimensional fiber structure, in particular a fiber structure in the form of a fiber-reinforced plastic (FRP) or FRP semi-finished product, using a production machine including at least one depositing device and at least one fiber support. The one- or two-dimensional fiber structures have at least one unidirectional fiber layer. The depositing device deposits the one- or two-dimensional fiber structures onto the fiber support in a depositing direction in a controlled manner such that the fiber directions of the deposited one- or two-dimensional fiber structures assume an angle α>20°, preferably α>60°, and a maximum of α=90°, relative to the depositing direction. The one- or two-dimensional fiber structures are deposited on the fiber support in a substantially tension-free manner with respect to the fiber direction of the fiber structures.

The invention relates to a method for depositing one- or two-dimensional fiber structures in order to form a two- or three-dimensional fiber structure, in particular a fiber structure in the form of a fiber-reinforced plastic (FRP) or FRP semi-finished product, using a production machine including at least one depositing device and at least one fiber support. The one- or two-dimensional fiber structures have at least one unidirectional fiber layer. The depositing device deposits the one- or two-dimensional fiber structures onto the fiber support in a depositing direction in a controlled manner such that the fiber directions of the deposited one- or two-dimensional fiber structures assume an angle α>20°, preferably α>60°, and a maximum of α=90°, relative to the depositing direction. The one- or two-dimensional fiber structures are deposited on the fiber support in a substantially tension-free manner with respect to the fiber direction of the fiber structures.

A method of producing an opened fiber bundle is in a space-saving manner. The method of continuously producing an opened fiber bundle for a cleaning member, includes the steps of (a.sub.1) providing (i) first nip rolls, (ii) second nip rolls, (iii) third nip rolls, and (iv) an air feeder; (a.sub.2) conveying a fiber bundle using the first nip rolls and the second nip rolls to apply a tensile force to the fiber bundle; (a.sub.3) conveying the fiber bundle using the second nip rolls and the third nip rolls to relax the fiber bundle, thereby forming a belt-shaped fiber bundle; and (a.sub.4) blowing air from the air feeder in a direction intersecting with the conveying direction of the first belt-shaped fiber bundle.

The invention relates to an elongate profiled object having a cross section, the object comprising a peripheral wall, forming a hollow profile extending in a longitudinal direction, wherein at least part of the peripheral wall is provided with a reinforcement layer extending in at least the longitudinal direction of the elongate profiled object, wherein the reinforcement layer comprises a tape or a laminate of tapes, wherein the reinforcement layer has a thickness of at least 0.6 mm and the tape is made of a first thermoplastic composition, which is a fiber reinforced thermoplastic composition comprising a flame retardant, wherein the elongate profiled object is made of a second thermoplastic composition.