Abstract: A method of producing a composite part formed of a thermoplastic matrix reinforced with long glass fibers is provided. The method includes supplying a thermoplastic resin and high density glass granules to an injection or injection-compression device containing a single screw. The high density glass granules include long chopped strands formed of glass filaments sized with a sizing composition. The chopped glass strands may have a length from 6 to 30 mm. In addition, the glass granules may have a glass density between 90 and 99.5% and may have a length to diameter ratio (L/D) ratio of less than L, which is expressed in mm. A composite part obtained using the disclosed method is also provided.

Abstract: The invention relates to a method of producing a composite part that is formed from a thermoplastic matrix which is reinforced with long glass fibres. The inventive method comprises an injection or injection-compression moulding step which is performed by a device comprising a single screw which is supplied with the material and the reinforcement. The method is characterised in that the reinforcing fibres are introduced into the device in the form of long cut fibre granules having a glass density of between 90 and 99.5%, preferably between 95 and 99%, and having a length to diameter (L/D) ratio of less than L, expressed in mm. The invention also relates to the composite part obtained using said method.