Alpla Werke Alwin Lehner Gmbh+co. Kg

Christian Zmölnig

Robert Siegl

Thomas Bohle

Michel Gauthey

Jürgen Bickel

Daniel Schnetzer

Haas Benjamin

Florian Dario Plöchl

Steffen Kroon

The invention relates to a plastic container () having a container wall () with an outside () and an inside. A surface () of the outside () has a structure at least in a first region (). Said structure is formed by elevations () and/or recesses (). Each elevation () or recess () has one or more boundary faces (). Each transition from a first boundary face () to a second boundary face () or to the surface () of the container wall () has a radius, which is less than or equal to 5 μm. The invention also relates to a method for determining a property of a plastic container and verifying the authenticity.

Plastic container and method for determining a property of a plastic container

A plastic container manufactured from a preform with a mass share of at least 80% polyester and possibly an additive from the group consisting of dyes, fillers, catalysers, additives and lubricative additives. The plastic container comprises a container neck and a container shoulder which connects with the container neck and merges into a container body closed by a container base. The container shoulder, the container base and the container body are exclusively reshaped by a 2-stage stretch blow moulding method. The polyester is a copolyester and comprises groups which originate from the monomers cyclohexanedimethanol (CHDM) and/or monoethylene glycol (MEG), terephthalic acid (TPA) or its derivatives and isophthalic acid (IPA) or its derivatives. At least a part-region of the container body and/or of the container shoulder comprises a sharp edge with a radius of less than 0.5 mm. A method of manufacturing the plastic container is also described.

Plastic container having at least a regional sharp-edged container geometry and process for producing the plastic container

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Schwarzach, Austria

Christian Zmölnig