A PREFORM AND A MOLD STACK FOR PRODUCING THE PREFORM

摘要

Disclosed is a preform (300) suitable for subsequent blow-molding into a final-shaped container. The preform comprises a neck portion (302); a gate portion (306); and a body portion (304) extending between said neck portion and said gate portion; the gate portion including an upwardly-bound region (324) defined between the inner and outer walls thereof, substantially whole of the upwardly-bound region extending in a direction towards the neck portion (302).