Parison whose neck is constituted by an aromatic polyester and in particular a polyethylene terephthalate (PET), including a threaded neck having a longitudinal section profile asymmetrically.

摘要

A parison (1) made of one or more thermoplastic resins and including a neck (2) based on an aromatic polyester, which neck is provided with a thread that has not been thermally stabilized, the parison being characterized in that the thread has a profile longitudinal section is asymmetrical, thereby making it possible to obtain a thread whose profile in longitudinal section presents improved after the neck (2) has been thermally stabilized symmetry.