The invention relates to a method of manufacturing a unitary device between a container and a corresponding, ready-to-use device which comprises a device

摘要

According to the inventive method, a first element (22) of the assembly which is formed by the base (8) and the cap (22) of the device, is produced from a harder material than the second element (8) of said assembly (8, 22), the first element (22) is provided with at least one peripheral edge (30) for tightly penetrating an area facing the second element and the/each edge (30) of the first element (8) is/are covered with a lubricating agent which is suitable for forming a lubricating film (26) once the covering process is complete. Said film remains in place on the sealed edge(s), during the relative displacement of the cap (22) and the base (8), as well as when the cap (22) and base (8) are immobile in relation to each other. This film ensures that the cap can be fairly easily disassembled from the base.