Abstract: Moulded three-dimensional noise attenuating trim part for a vehicle, comprising at least a three layer system consisting of a first porous fibrous layer and a second porous fibrous layer and an air permeable intermediate film layer situated between the first and second porous fibrous layers and wherein the adjacent surfaces within the three layer system are interconnected, wherein the second porous fibrous layer has an area weight AW2 that is varying over the surface and wherein at least for areas of the three layer system with a total thickness t between 5 and 35 mm, the area weight AW2 relates to the total thickness t of the three layer system as following 25*t+175<AW2<45*t+475 wherein t is in mm and AW2 is in g·m?2 and wherein the area weight AW2 of the second porous fibrous layer is increasing with increasing total thickness t of the three layer system.

Abstract: Sound absorbing liner for the engine bay of a vehicle comprising at least one fibrous layer consisting of fibers and a thermoset binder thermally moulded to form the liner characterised in that the fibers comprises thermoplastic side by side bicomponent fibers and wherein the sides differ such that the fiber has a frizzy or curved shape.

Abstract: Moulded three-dimensional noise attenuating trim part for a vehicle, comprising at least a three layer system consisting of a first porous fibrous layer and a second porous fibrous layer and an air permeable intermediate film layer situated between the first and second porous fibrous layers and wherein the adjacent surfaces within the three layer system are interconnected, wherein the second porous fibrous layer has an area weight AW2 that is varying over the surface and wherein at least for areas of the three layer system with a total thickness t between 5 and 35 mm, the area weight AW2 relates to the total thickness t of the three layer system as following 25*t+175<AW2<45*t+475 wherein t is in mm and AW2 is in g·m?2 and wherein the area weight AW2 of the second porous fibrous layer is increasing with increasing total thickness t of the three layer system.

Abstract: Multilayer sound attenuating trim part for a vehicle, in particularly for a trim part or cladding used in the interior of a car, for instance as an inner dash or as part of the floor covering or for the exterior of a vehicle, for instance as a trim part or cladding in the engine bay area or as part of an under body trim part as well as to the method of producing a part, comprising at least two fibrous layers (10, 30) and at least one air permeable intermediate film layer (20) between the at least two fibrous layers, whereby all layers together have a variable thickness.

Abstract: Multilayer automotive trim part for noise attenuation comprising at least two fibrous layers (10, 30) and at least one air permeable intermediate film layer (20) between the at least 2 fibrous layers (10, 30), whereby the trim part is air permeable, and at least one of the fibrous layers (10, 30) is a mixture of fibers consisting of 10 to 40% of binder fibers, 10 to 70% of recycled fibers and 10 to 70% of self-crimped fibers and wherein the total amount of said fibers adds to 100% by weight.

Abstract: Sound absorbing liner for the engine bay of a vehicle comprising at least one fibrous layer consisting of fibers and a thermoset binder thermally moulded to form the liner characterised in that the fibers comprises thermoplastic side by side bicomponent fibers and wherein the sides differ such that the fiber has a frizzy or curved shape.

Abstract: Multilayer sound attenuating trim part for a vehicle, in particularly for a trim part or cladding used in the interior of a car, for instance as an inner dash or as part of the floor covering or for the exterior of a vehicle, for instance as a trim part or cladding in the engine bay area or as part of an under body trim part as well as to the method of producing a part, comprising at least two fibrous layers (10, 30) and at least one air permeable intermediate film layer (20) between the at least two fibrous layers, whereby all layers together have a variable thickness.

Abstract: Multilayer automotive trim part for noise attenuation comprising at least two fibrous layers (10, 30) and at least one air permeable intermediate film layer (20) between the at least 2 fibrous layers (10, 30), whereby the trim part is air permeable, and at least one of the fibrous layers (10, 30) is a mixture of fibers consisting of 10 to 40% of binder fibers, 10 to 70% of recycled fibers and 10 to 70% of self-crimped fibers and wherein the total amount of said fibers adds to 100% by weight.

Abstract: The invention relates to a textile complex (1) intended to be used as reinforcing layer for the manufacture of three-dimensional composite parts by resin injection or infusion processes, comprising at least one fibre-based reinforcing layer (2). It is characterized in that it comprises on one of its faces, a fixing layer (3) based on a thermoplastic having an almost zero cold elongation and a melting point below the melting point of the other materials of the complex, and in that the said fixing layer (3) is apertured to allow the passage of the injected or infused resin. The invention also relates to a method for manufacturing a flexible preform, during which the shape of the reinforcement is maintained by the presence of a fixing layer joined to the reinforcement in a preformed mould.

Abstract: A method for manufacturing a fabric from at least partially split yarns, fibers or filaments, which are formed from at least two elementary filaments and originate from a common spinneret, and are formed into one fabric, which is compressed at a temperature between the glass transition temperature (Tg) and the melting temperature of the polymer(s) employed to a density of at least 10% of the density of the polymer(s) used, so that, under the subsequent action of further mechanical forces, at least a partial splitting into the elementary filaments takes place.