Patent ID: 8388780

Claim:
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, comprising the steps of: (a) depositing the fibres or the filaments onto a film on a conveyor; (b) 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; (c) depositing an upper film onto the powder and the fibres or filaments; (d) mixing the particles with the fibres or the filaments to form a mixture; and (e) bringing the mixture to a temperature above the softening points of the plastics, so as to form the semi-finished product; wherein the mixing step (d) is performed after (c) and before (e), and 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; and wherein the upper film of (c) forms an outer layer of the reinforced stampable composite semi-finished product.