| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a hollow vessel which can make compatible the securement of the favorable adhesion of a liner and a reinforcing material layer and the reduction in a manufacturing cost of the vessel, and can stabilize an extrusion amount of an adhesive resin in a blow molding process, and its manufacturing method.SOLUTION: In a manufacturing method of a pressure vessel in which a reinforcing material layer is formed outside a liner via an adhesive material layer, a polyethylene resin is transported by a first extrusion screw device 11, an adhesive resin composed of polyethylene having a functional group and the polyethylene resin are fused to produce an adhesive resin composed of polyethylene having a functional group whose MA content is 8 to 17wt%, the produced adhesive resin is transported by a second extrusion screw device 12, and a parison P using the polyethylene resin transported by the first extrusion screw device 11 as the liner, and the adhesive resin transported by the second extrusion screw device 12 as the adhesive material layer is formed and blow-molded.</p> |
