Patent ID: 11530081

Abstract:
The present invention relates to a rigid plastics-material internal container (12) from a thermoplastic plastics material for a pallet container (10) or a similar large-volume retainer for storing and for transporting liquid or free-flowing filling materials, having a flexible inliner (28) from a thin-walled plastics-material or composite-material film that is inserted into the rigid plastics-material internal container (12).For filling and removal at the base, the thin-walled inliner (28) at the base side has at least one filling and removal connector (42), said filling and removal connector (42) at the front being fixedly welded into a corresponding filling and removal connector (32) at the base side of the rigid plastics-material internal container (12). For filling from above and removal of the filling material at the base side, the rigid plastics-material internal container (12) and the thin-walled inliner (28) can in each case also be provided with an upper filling connector, wherein in this instance the upper filling connector (44) of the thin-walled inliner (28) is likewise fixedly welded into the filling connector (30) of the rigid plastics-material internal container (12).The thin-walled inliner (28) that is inserted in the rigid plastics-material internal container (12) in the assembled final state by way of vacuuming bears in a fully planar manner on the internal surface of the rigid plastics-material internal container (12), and in the empty non-filled state as well as in the filled state of the rigid plastics-material internal container (12) adheres in an immovable fixed manner, as if adhesively bonded, on the internal surface, in particular also on the upper base of the internal container.