Search International and National Patent Collections
|1. (WO2018028820) METHOD FOR PRODUCING A CLOSURE IN A CONTAINER MADE OF PLASTIC|
|Applicants:||KOCHER-PLASTIK MASCHINENBAU GMBH
|Title:||METHOD FOR PRODUCING A CLOSURE IN A CONTAINER MADE OF PLASTIC|
The invention relates to a method for producing a closure in a container made of plastic in a blow moulding method, wherein a joining process is carried out in order to form an inseparable connection between a region (8) of the container wall (6) - provided for a removal process and preferably forming an insertion site - and a sealing material (28) made of a joinable plastic, such as a thermoplastic elastomer, wherein the joining partners (28, 6) are heated to a joining temperature that is significantly below the welding temperature thereof and are pressed against one another with slowly increasing pressure in order to integrally join same, characterised in that the joining process is carried out between the sealing material (28) and a flexible membrane (8) of the container wall (6) forming the removal region in such a way that the joining partners (28, 8) are slowly heated in an autoclaving process, and that a joining contact pressure pressing together the joining partners (28, 8) is generated by the internal pressure of the container acting on the membrane (8) during the autoclaving process, and this simultaneously brings about a bacterial count reduction in the space (34) between the closure cap (12) and the end wall (6).