Container self-sealing closing process

Details Container self-sealing closing process Container self-sealing closing process

B - Operations, Transporting

65

B

B65B 7/16 (2006.01) B65B 3/00 (2006.01) B65B 63/08 (2006.01) B65D 51/20 (2006.01) B65D 81/24 (2006.01)

Patent

CA 2183369

By covering humidity-sensitive meltable masses with an insertion that consists of a thermally stable and water vapour-tight plastic foil (1) and of a plastic disk (2) made of a thermoplastic material with a linear coefficient of expansion of at least 6.10-5/K, the surface of said meltable masses (6) may be self-sealingly closed. The meltable mass is reliably protected by this self-sealing closure against the penetration of humidity, even after a long storage. Thus closed containers with humidity-sensitive meltable masses may thus be stored for a long time.

Afin de fermer de manière auto-étanche la surface de masses fusibles (6) sensibles à l'humidité, on utilise une piece d'insertion constituée d'une feuille en plastique (1) thermiquement stable et imperméable à la vapeur d'eau, et d'un disque en plastique (2) constitué d'un matériau thermoplastique avec un coefficient de dilatation linéaire d'au moins 6.10-5/K. Cette fermeture auto-étanche protège fiablement la masse fusible contre l'infiltration d'humidité, même pendant un long stockage, ce qui permet de stocker à long terme des récipients ainsi fermés contenant des masses fusibles sensibles à l'humidité.

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