Patent ID: 7055707

Claim:
A blow-molded container, comprising: an outer layer of a synthetic resin, which forms the outer shell of a finite shape; an inner layer of a flexible synthetic resin, which is laminated with the outer layer in a peelable way and forms an inner bag; and a pair of adhered zones of a vertical strip type, which is formed axisymmetrically on the central axis of container to adhere and fix the outer layer and the inner layer over the entire height and is located so as to avoid the positions of air intake ports that have been provided in the outer layer to take air into the void between the outer layer and the inner layer, wherein: the pair of said adhered zones is disposed on the sides opposite to each other, with a parting line bordering between both sides, and at positions displaced on the central axis of said container by about 90 degrees from the direction of the parting line; lower ends of both adhered zones are opposed to each other at a partly or wholly end-to-end position on a bottom seal of a bottom portion of said container, said bottom seal being formed when the bottom portion of the container is pressed flat with a pinch-off section of a split mold used in blow molding; and said air intake ports are disposed almost axisymmetrically on the central axis of said container at two positions in the outer layer on or near the parting lines also located axisymmetrically on a neck of the container.