Plastic container e.g. wide neck polyethylene terephthalate bottle, has amorphous pellet located at center of top of pin that is extended in projection at center of bottom in extension of membrane, where membrane is made of crystalline

摘要

The container (1) has a bottom (8) extended at an end of the container. The bottom has a deformable annular membrane (11) in the form of a spherical cap and extended from an annular step (10) perpendicular to a cylindrical body. The step is extended from an annular base (9) towards interior of the container. A pin (12) is extended in projection at the center of the bottom towards the interior of the container and in an extension of the membrane. The membrane, step, base and a lateral wall of the pin are made of crystalline. An amorphous pellet is located at the center of top of the pin.