Extrusion-blow molded container having cylindrical body and metal mold for producing the same

摘要

PCT No. PCT/JP97/01854 Sec. 371 Date Jan. 28, 1998 Sec. 102(e) Date Jan. 28, 1998 PCT Filed May 30, 1997 PCT Pub. No. WO97/45245 PCT Pub. Date Dec. 4, 1997There is provided a cylindrical extrusion-blow molded container, or a cylindrical delaminatable blow-molded container in particular, having an inner layer made of a poorly fusion-bonded resin material such as nylon, in order to improve the fusion-bond of the bottom seal section of the container, to prevent the bottom from cracking. In a cylindrical extrusion-blow mold container, or a cylindrical delaminatable blow-molded container having an air inlet hole arranged at a neck of the container, a bottom seal section in a bottom wall of a bottom is formed with an elliptic thick and raised section arranged in and near the bottom seal section, said elliptic thick and raised section approximately showing an ellipsoid having an elliptic contour with its major axis running along a parting line.