Process for producing a stampable reinforced composite semi-finished product

Process for preparing a reinforced stampable composite semi-finished product comprising one or more plastics and chopped fibres or continuous filaments, made of one or more materials, a softening point of the production is higher than a highest of softening points of the said materials, comprising the steps of:

• depositing the fibres or the filaments, onto a conveyor;
• sprinkling particles of a powder of the plastics onto the fibres or the filaments, in a proportion of between 5% and 90% of the total weight;
• mixing the particles with the fibres or the filaments to form a mixture;
• and
• bringing the mixture to a temperature above the softening points of the materials, so as to form the semi-finished product;
• wherein the mixing step includes subjecting the mixture to at least one electric field substantially perpendicular to a direction of advance of the conveyor, the field moving the particles and the fibres or the filaments so as to homogenize the mixture.