Abstract: A method for producing a rough elongate composite element, and a rough elongate composite element formed by the method. In the method, introduced simultaneously into a sheathing device are an essentially solid cord based on an organic material and reinforcing yarns as well as a mixture including a molten thermoplastic and at least one of the following constituents: a reinforcement and a filler, the cord being pulled by a haul-off mechanism downstream from the sheathing device. The cord is sheathed by forming a layer of the adherent mixture onto the cord, the roughness of the sheath formed in this way being created by the sheathed cord leaving the sheathing device.

Abstract: The invention concerns a hollow composite product comprising over 20% glass in the form of long fibres, the thickness of the product walls further ranging between 1 and 10 mm about. The invention also concerns a method for making said product, which consists in inserting in a mould (10) a preheated assembly (9) comprising in its core at least an inflatable pocket covered with at least a composite structure, the composite structure including at least a filler material in the form of long fibres and the preheated assembly including a material capable of creeping, and in inflating the inflatable pocket under pressure higher than 40 bars.