Patent ID: 8486325

Claim:
A method of producing a plastic bottle in a stretch-blow-molding process, comprising: inserting a parison into a blow mold having a blow mold wall, the parison comprising a rigid, essentially longitudinal body that has a base at one longitudinal end and a neck section provided with a pouring aperture at an opposite longitudinal end, the neck section separated from the body by a radially protruding flange-like support ring and a parison shoulder, the parison inserted in the blow mold in such a way that the parison shoulder has a clearance of 1.2 to 3 mm from the blow mold wall; stretching the parison with a stretching core; expanding the parison by high pressure in accordance with the mold cavity of the blow mold to stretch the length and diameter of the body of the parison without bringing the parison shoulder into contact with the blow mold wall; and releasing the finished plastic bottle from the mold.