Schott Ag

Jonas Zeitler

Bernd Hoppe

Gottfried Haas

Markus Riedl

Wolfgang Kreger

Franz Völkl

Carsten Hamann

Oliver Zettl

Patrick Braun

A glass tube for pharmaceutical containers is provided. The tube has an inner surface at an inner diameter, an outer surface with an outer diameter, a first end defining a first closed end, a second end defining a first closed end, a first location 400 mm from the first end, a first intermediate location 15 mm from the first end, and a ventilation hole at a first vicinity. The first vicinity is between the first intermediate location and the first location. The glass tube can have a ratio of an integrated NaFsignal to an integratedSisignal of at least 0.10, where the integrated NaFsignal and the integratedSisignal are integrated over a depth of 100 nm. The glass tube can have a ratio between a fluorescence emission determined at a first vicinity and a fluorescence emission determined at a middle section of at least 0.6.

Glass tube for pharmaceutical containers and process for the production of a glass tube

The invention relates to a method for producing glass tubes with a cross section of a noncircular form by reshaping. This method includes at least providing a glass tube, heating the glass tube, providing at least one reshaping tool, which has a forming body with a forming area for reshaping the heated glass tube, the forming body including at least one open-porous material, setting a gas pressure in the interior of the reshaping tool lower than 90 kPa, so that a negative pressure is produced on the forming area, and reshaping the heated glass tube by applying a compressive force perpendicularly to the longitudinal axis of the glass tube, the compressive force being generated by the reshaping tool and being applied to the outer surface of the glass tube, and the outer surface of the glass tube being fixed by the negative pressure.

Method for producing a glass tube with a cross section of a noncircular form by reshaping

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Mitterteich, Germany

Jonas Zeitler