Container of polyethylene terephthalate or saturated polyester resin

摘要

A hollow, blow-molded container of a biaxially oriented saturated polyester resin in which the upper part of the neck section is formed thicker than the intermediate section, and the upper half part of the upper part is formed thicker than the lower half part of the upper part. Thus, a cap can be exactly mounted on the neck section of this container, and the quantity of the material of the neck section can be reduced.