VERSCHLUSSVORRICHTUNG UND VERFAHREN ZUM VERSCHLIESSEN DER ÖFFNUNG EINES BEHÄLTERS

摘要

System and for sealing an opening of a plastic tank with a multilayer wall by means of a multilayer plate itself constituted by a polymer structure including at least one internal barrier layer and an exterior layer compatible with the exterior layer of the tank wall. The multilayer plate is welded over an opening in the tank and the plate and the wall of the tank are superimposed so that the number of superimposed layers is equal to the sum of the number of layers in the plate and the number of layers in the wall of the tank.