Abstract: A process for manufacturing composite sheets includes steps of: continuously depositing a web of yarns, in the form of a mat of continuous yarns, a woven, a knit or an assembly of continuous non-interlaced yarns on a moving substrate; depositing a powder of an organic material capable of forming a coating layer under the action of heat on at least one side of said web; heating the web coated with the powder to a temperature sufficient to melt the powder; compressing and cooling the web so as to form a composite strip; and cutting the strip in the form of sheets or winding the strip up on a rotating support.

Abstract: A process for manufacturing rods of reinforcement concentrates, a device for implementing the process, and products obtained. The method includes heating and shaping at least one bundle of strands having more than 70% by weight of reinforcing material and a moisture content of at least 0.1% before being cut up into rods.

Abstract: The invention relates to a process for manufacturing composite sheets, in which: a web of yarns, in the form of a mat of continuous yarns, a woven, a knit or an assembly of continuous non-interlaced yarns, is continuously deposited on a moving substrate, this web comprising at least one organic material and at least one reinforcing material; a powder of an organic material capable of forming a coating layer under the action of heat is deposited on at least one side of said web; the web coated with the powder is heated to a temperature sufficient to melt the powder; the web is compressed and cooled so as to form a composite strip; and the strip is cut in the form of sheets or wound up on a rotating support. The subject of the invention is also an installation for implementing the process and the products obtained.