Multilayer film structures having improved seal and tear...

Details Multilayer film structures having improved seal and tear... Multilayer film structures having improved seal and tear...

B - Operations, Transporting

32

B

B32B 27/08 (2006.01) B32B 27/32 (2006.01)

Patent

CA 2394771

A multilayer film structure having at least two layers wherein the first layer comprises poly(ethylene) having a density range from about 0.93 g/cc to 0.97 g/cc; and a second layer comprising poly(ethylene) having a density range from 0.89 g/cc to 0.93 g/cc wherein the second layer is capable of forming a heat seal. The multilayer film structure is capable of being laminated to another film structure or a packaging film component. The packages of the present invention are useful for the packaging of flowable materials. A package produced as shown in the figure may be grasped with two hands one hand tears the corner of the package in a downward/horizontal motion to create a small opening through which product is dispensed. Any corner of the package can be torn away.

Cette invention concerne une structure de film multicouches composée d'au moins deux couches, dans laquelle la première couche renferme un poly(éthylène) d'une densité comprise approximativement entre 0,93 g/cm?3¿ et 0,97 g/cm?3¿; et la seconde couche renferme un poly(éthylène) d'une densité comprise approximativement entre 0,89 g/cm?3¿ et 0,93 g/cm?3¿, la deuxième couche pouvant former un thermoscellage. Cette structure de film multicouche peut être laminée sur une autre structure de film ou sur un composant à film d'emballage. Les emballages selon la présente invention sont utiles pour le conditionnement de matériaux fluides. Un emballage du type de celui représenté dans la figure peut être saisi des d eux mains, une main servant à déchirer le coin de l'emballage verticalement ou latéralement de manière à créer une petite ouverture par laquelle le contenu peut s'écouler. Tous les coins de l'emballage peuvent être déchirés.

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