Abstract: The object of the invention is a process for production of a reinforcement (10) for composite material comprising at least two layers (12, 14) intended to be embedded in a polymer matrix, characterized in that at least one (14) of the layers is comprised of continuous filaments (16) in one main direction F and in that these filaments are positioned with variable spacing along this main direction F.

Abstract: A thread or other element for bonding fibers in a fibrous reinforcement for use in a fiber composite is such that it is at least degraded in the course of the production of said fiber composite.

Abstract: The object of the invention is a process for production of a reinforcement (10) for composite material comprising at least two layers (12, 14) intended to be embedded in a polymer matrix, characterized in that at least one (14) of the layers is comprised of continuous filaments (16) in one main direction F and in that these filaments are positioned with variable spacing along this main direction F.

Abstract: The invention relates to a multiaxial complex of multifilament threads formed of continuous filaments, whereby the multifilament threads are placed on top of one another in different orientations, and the threads of the 0° layers run in the production direction, and whereby the multifilament threads of the 0° layers are laid in between the other multifilament layers layered in different orientations and, spread apart and without any torsion before their placement, are placed onto the previous multifilament layer.

Abstract: A thread or other element for bonding fibers in a fibrous reinforcement for use in a fiber composite is such that it is at least degraded in the course of the production of said fiber composite.

Abstract: A thread or other element for bonding fibers in a fibrous reinforcement for use in a fiber composite is such that it is at least degraded in the course of the production of said fiber composite.

Abstract: A thread or other element for bonding fibers in a fibrous reinforcement for use in a fiber composite is such that it is at least degraded in the course of the production of said fiber composite.

Abstract: The invention relates to a method for producing a multiaxial structure out of multifilament threads which are superimposed with different orientations. The threads of the 0° position run in a direction of production and are inserted between the remaining multifilament layers superimposed with different orientations. In addition, the threads of the 0° position are guided in the area located in front of the stitch bonding machine by auxiliary means which ensure the correct superimposition or distribution thereof.

Abstract: The invention proposes to provide interrupted individual filaments by a subsequent treatment in a flat element made of aligned filaments. Also disclosed is a process for manufacturing a flat structure useful as a reinforcing surface in a building element made of a composite material with aligned layers of individual filaments. The invention provides for individual filaments to be interrupted by a subsequent treatment.

Abstract: An improved warp/knit stitch reinforced multi-axial non-crimp layered fabric sheet used in structural applications, as for example, in aircraft and water applications, e.g. the skin of an airplane wing or fuselage structure, in water applications, e.g. skins of surfboards and boats, and in other areas where high strength and relatively light weight is required. The fabric is comprised of a plurality of plies facewise disposed upon one another and knitted or stitched to form a structural sheet. Each fabric ply is made of strands of aligned structural fibers which can be later impregnated and even pre-impregnated with a resin curable matrix. The improved sheet is formed by applying unidirectional non-crimp and non-woven plies of different angular relationship to one another, e.g. a +45.degree., a 90.degree. and a -45.degree. ply and locating 0.degree. plies in essentially any position in the ply arrangement such that the 0.degree.