Synthetic resin bottle-shaped container

A biaxially oriented blow-molded bottle-shaped container made of synthetic resin, comprising:

• a body including flat walls, each of the flat walls having a central recessed portion having a bottom wall comprising a shaped panel wall for compensating deformation due to reduced pressure in the container, and a shaped peripheral groove curved around the shaped panel wall, wherein
• the shaped panel wall has ribs each with a curved crest and a curved root traversing the shaped panel wall in parallel to each other, the crest of each of the ribs having larger radius of curvature than that of the root.

A biaxially oriented blow-molded bottle-shaped container made of synthetic resin, comprising:

• a rectangular tubular body having a main portion with four corner walls and an upper end which is a regular polygon having eight corner walls and a shoulder having a lower end portion connected to the upper end of the body, the lower end portion of the shoulder being in the form of a regular polygonal truncated pyramid shape having eight corner walls.

A biaxially oriented blow-molded bottle-shaped container made of synthetic resin having a high clarity, comprising a body, a shoulder and a bottom and including two sets of first wall surface portions and second wall surface portions, each set formed at the shoulder and the bottom, respectively, and each first wall surface portion connected to a second wall surface portion through a curved edge, wherein

• the curved connecting edge of each first wall surface portion connected to each second wall surface portion extends toward the second wall surface portion and includes a ridge-line wall portion which is inwardly curved with a small radius of curvature.