Patent ID: 6887407

Claim:
A method for producing a laminate article by fusion-bonding integrally a skin material to a core material using a horizontal mold clamping type injection molding machine, characterized in that said method comprises the steps of: setting up a skin material by inserting it at a predetermined position in a cavity of a mold while keeping the mold open; closing the mold to a predetermined mold clamping position thereafter; injecting a resin melt for a core material into a space formed by the mold and the skin material so as to fill the space with the resin melt for a core material with the volume of the space formed by the mold and skin being larger than the volume of the resin melt injected; opening said movable mold in accordance with the progress of injection to a predetermined position after a desired period of time passes from the start of the injection; and closing the mold after the completion of the injecting operation wherein said method can be completed without damage to the skin material of the thus molded article at the vicinity of a gate portion of the mold.