Abstract: Fibrous stiffener (1) for making composite parts molded from an injected resin base, of the type comprising at least one layer (2) based on stiffening fibers, characterized in that the layer (2) is connected by sewing or stitching to an elastomer sheet (6) extending over one of the wide faces of the layer (2) and performing a barrier function for any resin injected on one side or the other side of this sheet (6), the said elastomer sheet (6) being associated with a non-woven material (7) on at least one of its faces, to improve the adhesion of a resin injected on this side of the sheet (6).

Abstract: A unidirectional textile reinforcing sheath capable of being taped onto a mechanical structure to be reinforced, said sheath being formed from a tape produced by the weaving of high-strength warp threads based on aramid, and having a central zone bordered by two lateral zones, the thickness of the lateral zones being less than that of the central zone.

Abstract: A unidirectional textile reinforcing sheath (1) capable of being taped onto a mechanical structure to be reinforced, said sheath being formed from a tape produced by the weaving of high-strength warp threads (5) based on aramid, and having a central zone (2) bordered by two lateral zones (3, 4), the thickness of which is the lateral zones being less than that of the central zone.

Abstract: Reinforcing tape (1) that includes a ply (2) of longitudinal, aramid-, glass- or carbon-based high-tenacity yarns (3) bound together by weft yarns (4), which tape includes two thermoplastic films (5, 6), each placed on one side of the ply (2) of high-tenacity yarns (3).

Abstract: A reinforcing product includes a first layer (2) of reinforcing threads (3) parallel to each other and a second layer (4) of reinforcing threads (5) parallel to each other and transverse to the first layer (2). The reinforcing threads (3) in the first layer (2) are partially covered by a powder based on a thermoplastic or thermosetting material forming a bond firstly at points between the reinforcing threads (3) in the first layer (2), and secondly between the reinforcing threads (3) in the first layer (2) and the reinforcing threads (5) in the second layer (4).

Abstract: Fibrous stiffener (1) for making composite parts molded from an injected resin base, of the type comprising at least one layer (2) based on stiffening fibers, characterized in that the layer (2) is connected by sewing or stitching to an elastomer sheet (6) extending over one of the wide faces of the layer (2) and performing a barrier function for any resin injected on one side or the other side of this sheet (6), the said elastomer sheet (6) being associated with a non-woven material (7) on at least one of its faces, to improve the adhesion of a resin injected on this side of the sheet (6).

Abstract: According to the invention, in the unidirectional strengthening composite (1) based on thread laps, said thread laps consist of a first lap (2) of mutually parallel strengthening threads (3), a second lap (4) of bonding threads (5) composed of a fibrous core coated with a thermoplastic and running transversely to the threads (3) of the first lap (2), being crossed without interlacing, said strengthening threads (3) of the first lap (2) being bonded, at least locally, to the bonding threads (5) of the second lap (4) by fusion of the thermoplastic, and optionally a third lap (6) of strengthening threads (7) parallel to one another and to those of the first lap (2) and bonded, at least locally, to the coated bonding threads (5) by fusion of the thermoplastic, the coated bonding threads (5) of the second lap (4) being trapped between the strengthening threads (3) of the first lap (2) and the strengthening threads (7) of the third lap (6).

Abstract: An abrasive and/or scouring pad, comprising a core of foam between two nonwovens, wherein the core is a polyurethane foam and the nonwovens are based on a mixture of polyamide and polyester fibers. The polyamide has physical properties similar to those of the polyurethane foam. The nonwovens and the foam are bonded together at their periphery by thermal-welding, either directly, or by two layers of heat-fusible or heat-softening material placed on either side of the foam.

Abstract: A pad which can be abrasive, scouring or both, is formed as a block of foam between two nonwovens. The foam is a polyurethane foam and the nonwovens are based on a mixture of polyamide and polyester fibers. The polyamide fibers have physical properties similar to those of the polyurethane foam. The nonwovens and the foam block are bonded together at their periphery by thermal-welding. The pad can be coated with abrasive fillers. It can also be used for scouring delicate surfaces when it contains little or no abrasive fillers.