Method for producing a threadlike reinforcement element

A method for manufacturing a bonded reinforcing textile filamentary element, the bonded reinforcing textile filamentary element including (i) a core made up of a first strand comprising at least one monofilament, and (ii) a layer comprising at least two second strands, each second strand of the layer comprising at least one monofilament, and each second strand of the layer being wound in a helix around the core, the method comprising:

• assembling the first strand of the core and the second strands of the layer to form a reinforcing textile filamentary element in a natural state;
• coating the reinforcing textile filamentary element in the natural state with an external layer of at least one heat-crosslinkable adhesive composition to form a coated reinforcing textile filamentary element;
• thermally treating the coated reinforcing textile filamentary element to crosslink the adhesive composition to obtain the bonded reinforcing textile filamentary element;
• and
• applying, during the step of thermally treating the external layer, a treatment tension TT2 to the coated reinforcing textile filamentary element, the treatment tension TT2 being greater than a standard pretension,
• wherein the steps of coating and of thermally treating are carried out such that, for an elongation equal to 30% of an elongation at break of the reinforcing textile filamentary element in the natural state, a tangent modulus of the bonded reinforcing textile filamentary element is increased as compared to a tangent modulus of the reinforcing textile filamentary element in the natural state.