Separable laminated container and associated technology

Details Separable laminated container and associated technology Separable laminated container and associated technology

B - Operations, Transporting

65

D

B65D 77/06 (2006.01) B32B 27/28 (2006.01) B65D 23/02 (2006.01)

Patent

CA 2587053

A separable laminated container (A) of the present invention comprises an outer layer (1) made of synthetic resin and having an air suction hole (10) and an inner layer (2) made of synthetic resin and separably laminated on the inside of the outer layer, the inner layer having a portion previously separated from the outer layer just around the air suction hole. The air suction hole can be formed by driving a punch into the outer layer at a neck (4) of the separable laminated container from the outside, and punching just the outer layer leaving the inner layer behind. The portion of the inner layer previously separated from the outer layer may be left in the inwardly extended state. The inner layer is preferably made of synthetic resin having flexural modules of less than 10,000 kg/cm2.

Le récipient multicouche séparable (A) visé par la présente invention comporte une couche externe (1) en résine synthétique, pourvue d'un trou d'aspiration (10), et une couche interne (2) en résine synthétique apposée de manière séparable sur la face interne de la couche externe. La couche interne comprend une partie préalablement séparée de la couche externe tout autour du trou d'aspiration. Il est possible de faire le trou d'aspiration en enfonçant, à partir de l'extérieur, un poinçon dans la couche externe à un col (4) du récipient multicouche séparable, en perforant uniquement la couche externe et en laissant la couche interne derrière. Il est possible de laisser la partie de la couche interne préalablement séparée de la couche externe déborder vers l'intérieur. Il est souhaitable que la couche interne soit constituée d'une résine synthétique comportant des modules flexibles inférieurs à 10 000 kg/cm2.

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