TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The material of the outer layer comprises polyamides (PA) (PA6, PA12, PA11, PA6.6, PA 6.10, PA6.12), copolyamides, ether or ester-block polyamides (Pebax (RTM: Ester-block polyamide), polyether block amide, polyphthalamides, polyesters (polyethylene terephthalate, polybutylene terephthalate), copolyesters, thermoplastic polyurethanes, polyacetals (polyoxymethylene), polyolefins (polypropylene, high density polyethylene, low density polyethylene, linear low-density polyethylene) polyether sulfone, polysulfones, polyphenylenesulfones, polyether ether ketones, poly(ether ketone ketone), polyphenylene sulfate, or polyether imides, thermoplastic polyimides, liquid crystalline polymers, phenoxy resins, block copolymers, e.g. styrene-butadiene-methylmethacrylate copolymers, methyl methacrylate-acrylate- or butyl methylmethacrylate copolymers.    TECHNOLOGY FOCUS - TEXTILES AND PAPER - Preferred Components: The outer layer is a fibrous layer. The outer layers are arranged on opposite sides of the core layer. The outer layer comprises a porous material. The outer layer is made sticky for placing the structure or the laminate into the mold. The curable resin makes the outer layer sticky. The fibers are unidirectional in the fiber reinforcement. The structure or laminate is present in the form of a strip or band with a width of 10-60 mm. The fiber reinforcement layer is adjusted so that the mechanical properties of the laminate-structure, which are made of the structure or the laminate, is improved. The fibers, which are not impregnated with the resin, are in contact with the porous sheet-shaped material. The curable semi-preg comprises a second layer of unidirectional fiber, where the fibers are oriented in two layers so that they are aligned unidirectionally in the same direction. The second layer of unidirectional fibers, which is not impregnated with resin, is in contact with a second porous, sheet shaped material, which is arranged on the other surface of the semi-preg. The second layer of unidirectional fibers is impregnated with curable resin. The unidirectional fibers are arranged as many longitudinal strips, which are respectively separated by a discrete gap. The strips of unidirectional fibers are of same width, where the width is not greater than 60 mm, preferably not greater than 15 mm. The first and the second layer of the fibrous reinforcement are provided as many longitudinal strips, which are respectively separated from each other by the discrete gap. The strips in each layer are aligned according to the respective opposite strip in the other layer. The curable semi-preg exhibits a rectangular cross-section. The porous sheet shaped material is a continuous sheet, which is held together by the interconnected and/or overlapping fibers. The porous material has a degree of openness of 10-70%, preferably 30-70%. Preferred Method: The non-flowing curable resin is heated to a temperature, at which it is flowable, and is then applied to the sheet. The heated resin and the sheet are passed to cooled rollers (16), where the resin is cooled and is non-flowable. The sheet of porous material with unidirectional fibers and the non-flowing resin are simultaneously directed by a pair of rollers. The semi-preg is automatically cut into many strips as soon as it is produced, where the sections are aligned in accordance with the direction of orientation of the fibers. The semi-preg comprises unidirectional fibers, which are arranged in many strips (with at least two layers), and the sections are positioned so that they are aligned in accordance with the edges of each strip of fibers. The strips on a sheet of unidirectional fibers of porous material are removed from a coiled stock of strips of unidirectional fibers. Many layers of the structure or the laminate are automatically placed as a stack in the mold. The structure or the laminate is heated to make the resin stick to the outer surface. The semi-preg is placed to form a structural component of the wind turbine. EXAMPLE - No suitable example given.