BigPatents India

A process for the hot moulding of articles made of thermoplastic material, comprising the steps of heating at least one plate of thermoplastic material to a plasticizing temperature; compressing said heated plate between two moulding surfaces, set opposite one another, of a pair of half-moulds; and forming at least one component anchored to a surface of the plate by injecting plastic material at high pressure into a seat communicating with one of said moulding surfaces while the plate is being compressed between said moulding surfaces, characterized by providing in said seat a narrow section designed to produce a reduction in the pressure of the plastic material injected in contact with the plate.