PURPOSE: A plurality of resin layers are laminated so that these orientations are made different from those of the adjacent layers, thus increasing shaped laminates in impact strength and toughness.

CONSTITUTION: In an example, a thermally plasticized synthetic resin as polymethyl methacrylate is injected through film gate 9 into the center of the cavity formed by fixed mold 8 and movable mold 13 to form layer 1 of flat plate 15 oriented in the direction of arrow 11. Then, mold 13 is moved backward to expand the mold and form a new cavity. The synthetic resin is charged through runner 14 and film gate 10 into the new cavity to form layer 2 oriented in the direction of arrow 12, thus producing objective laminate.